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Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
22c310d78ce9630af15b0de94c18a409705b7496 10-Dec-2014 Tim Murray <timmurray@google.com> Revert "Revert "Bring in fixes for Cortex-A53 errata + build updates.""

This reverts commit c8db087b3b6d8767db4fa54057ac8fa448d812ca.
c8db087b3b6d8767db4fa54057ac8fa448d812ca 23-Oct-2014 Tim Murray <timmurray@google.com> Revert "Bring in fixes for Cortex-A53 errata + build updates."

This reverts commit 8a1773694c6d9b1277647440583811ad3d85c6a4.

bug 18094492
8a1773694c6d9b1277647440583811ad3d85c6a4 17-Oct-2014 Stephen Hines <srhines@google.com> Bring in fixes for Cortex-A53 errata + build updates.

Bug: 18034609

(cherry picked from commit bfc2d688b591c574c0cc788348c74545ce894efa)

Change-Id: I010fb735bb84fe97ccb8e3878f9601cb533962f4
cd81d94322a39503e4a3e87b6ee03d4fcb3465fb 21-Jul-2014 Stephen Hines <srhines@google.com> Update LLVM for rebase to r212749.

Includes a cherry-pick of:
r212948 - fixes a small issue with atomic calls

Change-Id: Ib97bd980b59f18142a69506400911a6009d9df18
dce4a407a24b04eebc6a376f8e62b41aaa7b071f 29-May-2014 Stephen Hines <srhines@google.com> Update LLVM for 3.5 rebase (r209712).

Change-Id: I149556c940fb7dc92d075273c87ff584f400941f
36b56886974eae4f9c5ebc96befd3e7bfe5de338 24-Apr-2014 Stephen Hines <srhines@google.com> Update to LLVM 3.5a.

Change-Id: Ifadecab779f128e62e430c2b4f6ddd84953ed617
ce9904c6ea8fd669978a8eefb854b330eb9828ff 12-Feb-2014 Stephen Hines <srhines@google.com> Merge remote-tracking branch 'upstream/release_34' into merge-20140211


Change-Id: Ia54f291fa5dc828052d2412736e8495c1282aa64
0ae07098f7d2ad5a1868d448d0b1b4eef2a3b091 27-Nov-2013 Bill Wendling <isanbard@gmail.com> Merging r195148:
r195148 | rafael | 2013-11-19 11:52:52 -0800 (Tue, 19 Nov 2013) | 15 lines

Support multiple COFF sections with the same name but different COMDAT.

This is the first step to fix pr17918.

It extends the .section directive a bit, inspired by what the ELF one looks
like. The problem with using linkonce is that given

.section foo

.section foo

we would already have switched sections when getting to .linkonce. The cleanest
solution seems to be to add the comdat information in the .section itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195822 91177308-0d34-0410-b5e6-96231b3b80d8
f02a188899769cde2315c964f0fbed1d024b7514 25-Nov-2013 Bill Wendling <isanbard@gmail.com> Merging r195491:
r195491 | probinson | 2013-11-22 11:11:24 -0800 (Fri, 22 Nov 2013) | 11 lines

Teach ISel not to optimize 'optnone' functions (revised).

Improvements over r195317:
- Set/restore EnableFastISel flag instead of just running FastISel within
SelectAllBasicBlocks; the flag is checked in various places, and
FastISel won't run properly if those places don't do the right thing.
- Test looks for normal ISel versus FastISel behavior, and not
something more subtle that doesn't work everywhere.

Based on work by Andrea Di Biagio.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195604 91177308-0d34-0410-b5e6-96231b3b80d8
54075bbea7e70fea6cdb9e5e89b066118c1d314b 21-Nov-2013 Bill Wendling <isanbard@gmail.com> Merging r195339:
r195339 | chapuni | 2013-11-21 02:55:15 -0800 (Thu, 21 Nov 2013) | 5 lines

Revert r195317 (and r195333), "Teach ISel not to optimize 'optnone' functions."

It broke, at least, i686 target. It is reproducible with "llc -mtriple=i686-unknown".

FYI, it didn't appear to add either "-O0" or "-fast-isel".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195375 91177308-0d34-0410-b5e6-96231b3b80d8
0a0da619eb7a072836cf2c5debee1c5c7c8f5496 21-Nov-2013 Bill Wendling <isanbard@gmail.com> Merging r195317:
r195317 | probinson | 2013-11-20 22:33:32 -0800 (Wed, 20 Nov 2013) | 4 lines

Teach ISel not to optimize 'optnone' functions.

Based on work by Andrea Di Biagio.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195321 91177308-0d34-0410-b5e6-96231b3b80d8
354362524a72b3fa43a6c09380b7ae3b2380cbba 19-Nov-2013 Juergen Ributzka <juergen@apple.com> [weak vtables] Remove a bunch of weak vtables

This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file. The memory leaks in this version have been fixed. Thanks
Alexey for pointing them out.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195064 91177308-0d34-0410-b5e6-96231b3b80d8
b21ab43cfc3fa0dacf5c95f04e58b6d804b59a16 18-Nov-2013 Alexey Samsonov <samsonov@google.com> Revert r194865 and r194874.

This change is incorrect. If you delete virtual destructor of both a base class
and a subclass, then the following code:
Base *foo = new Child();
delete foo;
will not cause the destructor for members of Child class. As a result, I observe
plently of memory leaks. Notable examples I investigated are:
ObjectBuffer and ObjectBufferStream, AttributeImpl and StringSAttributeImpl.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194997 91177308-0d34-0410-b5e6-96231b3b80d8
5a364c5561ec04e33a6f5d52c14f1bac6f247ea0 15-Nov-2013 Juergen Ributzka <juergen@apple.com> [weak vtables] Remove a bunch of weak vtables

This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file.

Differential Revision: http://llvm-reviews.chandlerc.com/D2068

Reviewed by Andy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194865 91177308-0d34-0410-b5e6-96231b3b80d8
de9a1a2055851a0f0a88e459cd23a246a90efd45 13-Nov-2013 Rafael Espindola <rafael.espindola@gmail.com> Remove AllowQuotesInName and friends from MCAsmInfo.

Accepting quotes is a property of an assembler, not of an object file. For
example, ELF can support any names for sections and symbols, but the gnu
assembler only accepts quotes in some contexts and llvm-mc in a few more.

LLVM should not produce different symbols based on a guess about which assembler
will be reading the code it is printing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194575 91177308-0d34-0410-b5e6-96231b3b80d8
328066513d18acd4e44ad57172c73f1a2a026022 13-Nov-2013 Rafael Espindola <rafael.espindola@gmail.com> Remove always true flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194530 91177308-0d34-0410-b5e6-96231b3b80d8
c87e4380542c0e15cdaa480716da1434284feb93 08-Nov-2013 Lang Hames <lhames@gmail.com> Add a method to get the object-file appropriate stack map section.

Thanks to Eric Christopher for the tips on the appropriate way to do this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194282 91177308-0d34-0410-b5e6-96231b3b80d8
62ab26548fee37422fb90daaac22fc1140be797d 08-Nov-2013 Artyom Skrobov <Artyom.Skrobov@arm.com> Export MCDisassembler's SubtargetInfo, to allow architecture-aware disassembly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194260 91177308-0d34-0410-b5e6-96231b3b80d8
d7ef09bc9a6dea29a4ac4a45e722d479e8c50f6d 31-Oct-2013 Rafael Espindola <rafael.espindola@gmail.com> Remove another unused flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193756 91177308-0d34-0410-b5e6-96231b3b80d8
b46bc1c91b3200d85c3d16e9da1de30259ec4172 31-Oct-2013 Rafael Espindola <rafael.espindola@gmail.com> Remove unused flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193752 91177308-0d34-0410-b5e6-96231b3b80d8
72580780a98cb8b0019b7ec4ed88e3f3328b9969 29-Oct-2013 Joerg Sonnenberger <joerg@bec.de> Move the STT_FILE symbols out of the normal symbol table processing for
ELF. They can overlap with the other symbols, e.g. if a source file
"foo.c" contains a function "foo" with a static variable "c".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193569 91177308-0d34-0410-b5e6-96231b3b80d8
23125d02d929758e1b0dbb30b13f1deff7a5ea4b 28-Oct-2013 Logan Chien <tzuhsiang.chien@gmail.com> [arm] Implement eabi_attribute, cpu, and fpu directives.

This commit allows the ARM integrated assembler to parse
and assemble the code with .eabi_attribute, .cpu, and
.fpu directives.

To implement the feature, this commit moves the code from
AttrEmitter to ARMTargetStreamers, and several new test
cases related to cortex-m4, cortex-r5, and cortex-a15 are

Besides, this commit also change the Subtarget->isFPOnlySP()
to Subtarget->hasD16() to match the usage of .fpu directive.

This commit changes the test cases:

* Several .eabi_attribute directives in
2010-09-29-mc-asm-header-test.ll are removed because the .fpu
directive already cover the functionality.

* In the Cortex-A15 test case, the value for
Tag_Advanced_SIMD_arch has be changed from 1 to 2,
which is more precise.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193524 91177308-0d34-0410-b5e6-96231b3b80d8
c8f4e5db29270fc7ed164af973ece7ba5921539b 25-Oct-2013 Tim Northover <tnorthover@apple.com> ARM: allow .thumb_func to be separated from symbol definition

When assembling, a .thumb_func directive is supposed to be applicable to the
next symbol definition, even if there are intervening directives. We were
racing ahead to try and find it, and this commit should fix the issue.

Patch by Gabor Ballabas

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193403 91177308-0d34-0410-b5e6-96231b3b80d8
be3cf5f3e449ea54785ab49d9f01543b710a5125 25-Oct-2013 Richard Smith <richard-llvm@metafoo.co.uk> Fix ODR violation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193391 91177308-0d34-0410-b5e6-96231b3b80d8
5759c3a02902026a27a0d1bc24a5bad85f52bd71 25-Oct-2013 David Blaikie <dblaikie@gmail.com> MCStreamer: Reimplement the virtual EmitRawText as a protected member, EmitRawTextImpl, to avoid string literal ambiguities

Also improve the implementation of EmitRawText(Twine) so it doesn't
bother using the SmallString buffer if the Twine is a simple StringRef

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193378 91177308-0d34-0410-b5e6-96231b3b80d8
135fe6ac5f5b80ef68c19b3ec7bb0063e28f2bab 22-Oct-2013 Benjamin Kramer <benny.kra@googlemail.com> Speling fixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193165 91177308-0d34-0410-b5e6-96231b3b80d8
22f9dd4591e8af6d6feed10a4b6e11a784582edc 18-Oct-2013 Hans Wennborg <hans@hanshq.net> MC asm parser: allow ?'s in symbol names, and handle @'s in names in MS asm

This is another (final?) stab at making us able to parse our own asm output
on Windows.

Symbols on Windows often contain @'s and ?'s in their names. Our asm parser
didn't like this. ?'s were not allowed, and @'s were intepreted as trying to
reference PLT/GOT/etc.

We can't just add quotes around the bad names, since e.g. for MinGW, we use gas
to assemble, and it doesn't like quotes in some places (notably in .def

This commit makes us allow ?'s in symbol names, and @'s in symbol names for MS

Differential Revision: http://llvm-reviews.chandlerc.com/D1978

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193000 91177308-0d34-0410-b5e6-96231b3b80d8
49978e61250a7229ad1040b002a609858f158584 16-Oct-2013 Rafael Espindola <rafael.espindola@gmail.com> Fix MCDataAtom never calling remap when adding data.

This patch fixes a small mistake in MCDataAtom::addData() where it doesn't ever
call remap():

- if (Data.size() > Begin - End - 1)
+ if (Data.size() > End + 1 - Begin)
remap(Begin, End + 1);

This is currently not visible because of another bug is the disassembler, so
the patch includes a unit test.

Patch by Stephen Checkoway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192823 91177308-0d34-0410-b5e6-96231b3b80d8
06957f43f6051901590b318c10b1a0a5c7f898d4 16-Oct-2013 Rafael Espindola <rafael.espindola@gmail.com> Add a MCAsmInfoELF class and factor some code into it.

We had a MCAsmInfoCOFF, but no common class for all the ELF MCAsmInfos before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192760 91177308-0d34-0410-b5e6-96231b3b80d8
c7ce3e4f42219003f30382be17d966cb2dfb4e71 16-Oct-2013 Rafael Espindola <rafael.espindola@gmail.com> Move .ident handling to MCStreamer.

No functionality change, but exposes the API so that codegen can use it too.

Patch by Katya Romanova.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192757 91177308-0d34-0410-b5e6-96231b3b80d8
4df7c5baa1dfe2d9de7eef2600c9ac325e9fdcd6 14-Oct-2013 Will Dietz <wdietz2@illinois.edu> MC: Don't assume incoming StringRef's are null terminated.

This can happen when processing command line arguments, which
are often stored as std::string's and later turned into
StringRef's via std::string::data(). Unfortunately this
is not guaranteed to return a null-terminated string
until C++11, causing breakage on platforms that don't do this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192558 91177308-0d34-0410-b5e6-96231b3b80d8
3353c592de08c4a7b7b282714b8044d7cfc4c6ad 09-Oct-2013 Benjamin Kramer <benny.kra@googlemail.com> Flip the ownership of MCStreamer and MCTargetStreamer.

MCStreamer now owns the target streamer. This prevents leaking the target

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192303 91177308-0d34-0410-b5e6-96231b3b80d8
320296a4cfe414ce59f406b8a5ce15272f563103 08-Oct-2013 Rafael Espindola <rafael.espindola@gmail.com> Add a MCTargetStreamer interface.

This patch fixes an old FIXME by creating a MCTargetStreamer interface
and moving the target specific functions for ARM, Mips and PPC to it.

The ARM streamer is still declared in a common place because it is
used from lib/CodeGen/ARMException.cpp, but the Mips and PPC are
completely hidden in the corresponding Target directories.

I will send an email to llvmdev with instructions on how to use this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192181 91177308-0d34-0410-b5e6-96231b3b80d8
c697f8b28832a0dcb8b7ceb919b02628050b7730 07-Oct-2013 Rafael Espindola <rafael.espindola@gmail.com> Fix the documentation of getDefaultSubtargetFeatures.

Patch by David Nadlinger.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192098 91177308-0d34-0410-b5e6-96231b3b80d8
5e195a4c8d8cd4498ab7e0aa16a3b6f273daf457 05-Oct-2013 Rafael Espindola <rafael.espindola@gmail.com> Remove some really nasty uses of hasRawTextSupport.

When MC was first added, targets could use hasRawTextSupport to keep features
working before they were added to the MC interface.

The design goal of MC is to provide an uniform api for printing assembly and
object files. Short of relaxations and other corner cases, a object file is
just another representation of the assembly.

It was never the intention that targets would keep doing things like

if (hasRawTextSupport())
Set flags in one way.
Set flags in another way.

When they do that they create two code paths and the object file is no longer
just another representation of the assembly. This also then requires testing
with llc -filetype=obj, which is extremelly brittle.

This patch removes some of these hacks by replacing them with smaller ones.
The ARM flag setting is trivial, so I just moved it to the constructor. For
Mips, the patch adds two temporary hack directives that allow the assembly
to represent the same things as the object file was already able to.

The hope is that the mips developers will replace the hack directives with
the same ones that gas uses and drop the -print-hack-directives flag.

I will also try to implement a target streamer interface, so that we can
move this out of the common code.

In summary, for any new work, two rules of the thumb are
* Don't use "llc -filetype=obj" in tests.
* Don't add calls to hasRawTextSupport.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192035 91177308-0d34-0410-b5e6-96231b3b80d8
6d389f5ebae9aa08309c5795234cf155054b6b39 05-Oct-2013 Jack Carter <jack.carter@imgtec.com> reverting per request

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191992 91177308-0d34-0410-b5e6-96231b3b80d8
8e48edcf3dd7dea9fec58b05a6ace6fbd0260d7c 04-Oct-2013 Jack Carter <jack.carter@imgtec.com> [MC][AsmParser] Hook for post assembly file processing

This patch handles LLVM standalone assembler (llvm-mc) ELF flag setting based on input file
directive processing.

Mips assembly requires processing inline directives that directly and
indirectly affect the output ELF header flags. This patch handles one

To process these directives we are following the model the code generator
uses by storing state in a container as we go through processing and when
we detect the end of input file processing, AsmParser is notified and we
update the ELF header flags through a MipsELFStreamer method with a call from
MCTargetAsmParser::emitEndOfAsmFile(MCStreamer &OutStreamer).

This patch will allow other targets the same functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191982 91177308-0d34-0410-b5e6-96231b3b80d8
83ba58e5f0a5afbb23d7d2092d817accded4455a 26-Sep-2013 Venkatraman Govindaraju <venkatra@cs.wisc.edu> Implements parsing and emitting of .cfi_window_save in MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191431 91177308-0d34-0410-b5e6-96231b3b80d8
070156437752179833b1e5fddd50caa03fd7c12f 25-Sep-2013 Andrew Trick <atrick@apple.com> Mark the x86 machine model as incomplete. PR17367.

Ideally, the machinel model is added at the time the instructions are
defined. But many instructions in X86InstrSSE.td still need a model.

Without this workaround the scheduler asserts because x86 already has
itinerary classes for these instructions, indicating they should be
modeled by the scheduler. Since we use the new machine model for other
instructions, it expects a new machine model for these too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191391 91177308-0d34-0410-b5e6-96231b3b80d8
3f22cc1df64a6dd6a3ecc5e7e261f15af083f806 25-Sep-2013 David Majnemer <david.majnemer@gmail.com> MC: Add support for treating $ as a reference to the PC

The binutils assembler supports a mode called DOLLAR_DOT which treats
the dollar sign token as a reference to the current program counter if
the dollar sign doesn't precede a constant or identifier.

This commit adds a new MCAsmInfo flag stating whether or not a given
target supports this interpretation of the dollar sign token; by
default, this flag is not enabled.

Further, enable this flag for PPC. The system assembler for AIX and
binutils both support using the dollar sign in this manner.

This fixes PR17353.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191368 91177308-0d34-0410-b5e6-96231b3b80d8
8ba3f9c9008223136207295b48b53c8aefffa178 25-Sep-2013 David Majnemer <david.majnemer@gmail.com> MC: Remove vestigial PCSymbol field from AsmInfo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191362 91177308-0d34-0410-b5e6-96231b3b80d8
118a0659ab8a4d0e0af343b88e5fa71a5c1eb6a6 24-Sep-2013 Reid Kleckner <reid@kleckner.net> Explicitly request unsigned enum types when desired

The underlying type of all plain enums in MSVC is 'int', even if the
enumerator contains large 32-bit unsigned values or values greater than
UINT_MAX. The only way to get a large or unsigned enum type is to
request it explicitly with the C++11 strong enum types feature.

However, since LLVM isn't C++11 yet, I had to add a conditional
LLVM_ENUM_INT_TYPE to Compiler.h to control its usage.

The motivating true positive for this change is compiling PointerIntPair
with MSVC for win64. The PointerIntMask value is supposed to be pointer
sized value of all ones with some low zeros. Instead, it's truncated to
32-bits! We are only saved later because it is sign extended back in
the AND with int64_t, and we happen to want all ones.

This silences lots of -Wmicrosoft warnings during a clang self-host
targeting Windows.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191241 91177308-0d34-0410-b5e6-96231b3b80d8
5cc319a42a914b24b164a94d9a563c728a7a4026 20-Sep-2013 Richard Mitton <richard@codersnotes.com> Added support for generate DWARF .debug_aranges sections automatically.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191052 91177308-0d34-0410-b5e6-96231b3b80d8
0a4371a2073d8841768cf3e8cf65601a8d7cc4fc 19-Sep-2013 Adrian Prantl <aprantl@apple.com> Debug info: Get rid of the VLA indirection hack in FastISel.
Use the DIVariable::isIndirect() flag set by the frontend instead of
guessing whether to set the machine location's indirection bit.
Paired commit with CFE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190961 91177308-0d34-0410-b5e6-96231b3b80d8
773c07606e61c5090d73ea1317a0d1b0c29ec023 18-Sep-2013 Craig Topper <craig.topper@gmail.com> Fix X86 subtarget to not overwrite the autodetected features by calling InitMCProcessorInfo right after detecting them. Instead add a new function that only updates the scheduling model and call that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190919 91177308-0d34-0410-b5e6-96231b3b80d8
25d25832d550c1844d27d2034cec1c8d507fa689 12-Sep-2013 Joey Gouly <joey.gouly@arm.com> Somehow this important part of the patch, where I actually check the Mask,
got lost during my iterations of review.

Thanks to Hal for spotting it!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190604 91177308-0d34-0410-b5e6-96231b3b80d8
715d98d657491b3fb8ea0e14643e9801b2f9628c 12-Sep-2013 Joey Gouly <joey.gouly@arm.com> Add an instruction deprecation feature to TableGen.

The 'Deprecated' class allows you to specify a SubtargetFeature that the
instruction is deprecated on.

The 'ComplexDeprecationPredicate' class allows you to define a custom
predicate that is called to check for deprecation.
For example:

would mean you would have to define the following function:
bool getMCRDeprecationInfo(MCInst &MI, MCSubtargetInfo &STI,
std::string &Info)

Which returns 'false' for not deprecated, and 'true' for deprecated
and store the warning message in 'Info'.

The MCTargetAsmParser constructor was chaned to take an extra argument of
the MCInstrInfo class, so out-of-tree targets will need to be changed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190598 91177308-0d34-0410-b5e6-96231b3b80d8
2c35f3b3b1168bd7a411f2ebe0131eeb37c0d6c2 11-Sep-2013 Bill Wendling <isanbard@gmail.com> Use the appropriate return type for the compact unwind encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190551 91177308-0d34-0410-b5e6-96231b3b80d8
328a20471dde690712211ce2b00641fcc6a57e36 09-Sep-2013 Eric Christopher <echristo@gmail.com> Add the gnu pubnames and pubtypes sections to the mc object file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190344 91177308-0d34-0410-b5e6-96231b3b80d8
da11df0c22f5d0ba2e2be3ae4a7076c806233db8 09-Sep-2013 Bill Wendling <isanbard@gmail.com> Call generateCompactUnwindEncodings() right before we need to output the frame information.

There are more than one paths to where the frame information is emitted. Place
the call to generateCompactUnwindEncodings() into the method which outputs the
frame information, thus ensuring that the encoding is there for every path. This
involved threading the MCAsmBackend object through to this method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190335 91177308-0d34-0410-b5e6-96231b3b80d8
c3cee57f7d20f69a84fd88464ed8cf050e63c7ad 09-Sep-2013 Bill Wendling <isanbard@gmail.com> Generate compact unwind encoding from CFI directives.

We used to generate the compact unwind encoding from the machine
instructions. However, this had the problem that if the user used `-save-temps'
or compiled their hand-written `.s' file (with CFI directives), we wouldn't
generate the compact unwind encoding.

Move the algorithm that generates the compact unwind encoding into the
MCAsmBackend. This way we can generate the encoding whether the code is from a
`.ll' or `.s' file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190290 91177308-0d34-0410-b5e6-96231b3b80d8
baaefaf828beb3527a3554af99505822fd4dfabf 07-Sep-2013 Bill Wendling <isanbard@gmail.com> Run clang-format on these header files. Part of a WIP.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190250 91177308-0d34-0410-b5e6-96231b3b80d8
ca7b43d01d963deafcc704389935f0f77dcfab0a 04-Sep-2013 Bill Wendling <isanbard@gmail.com> Remove 'param' label from comments. They aren't used properly here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189970 91177308-0d34-0410-b5e6-96231b3b80d8
06351cd0ff4146fa40ba9eb76bc10c5c6cb08616 04-Sep-2013 NAKAMURA Takumi <geek4civic@gmail.com> MCDwarf.h: Prune a few stray \param(s). [-Wdocumentation]

\param should be used to describe individual parameters. Use a command like \a or \c for visual enhancements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189905 91177308-0d34-0410-b5e6-96231b3b80d8
17554f3ffb157b122bc715f7701836f30adaf1e5 04-Sep-2013 Bill Wendling <isanbard@gmail.com> Add comments to the CFI instructions and reformat with clang-format. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189864 91177308-0d34-0410-b5e6-96231b3b80d8
06ef1ed260195e35fd1ea4a3dd8b3c00d7c434f2 03-Sep-2013 Joey Gouly <joey.gouly@arm.com> [MC] Revert part of my previous change, I was a bit overzealous.

A change to test the previous commit will be coming soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189825 91177308-0d34-0410-b5e6-96231b3b80d8
f21c18db9fa8bf185a44287f5700fec3d4a98e14 03-Sep-2013 Joey Gouly <joey.gouly@arm.com> [MC] AvailableFeatures needs to be a uint64_t to match FeatureBits in MCSubtargetInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189815 91177308-0d34-0410-b5e6-96231b3b80d8
5510728d28bb1ee04abc32da3d21b7df12948053 01-Sep-2013 Charles Davis <cdavis5x@gmail.com> Move everything depending on Object/MachOFormat.h over to Support/MachO.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189728 91177308-0d34-0410-b5e6-96231b3b80d8
6b6345f0167fb9ddf60bdc51d616d7a9ae590442 28-Aug-2013 Eric Christopher <echristo@gmail.com> Remove support for the .debug_inlined section. No known software
in use supports it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189439 91177308-0d34-0410-b5e6-96231b3b80d8
66b7139b1be1ddce410d97499d5831231c6be267 27-Aug-2013 Joerg Sonnenberger <joerg@bec.de> Given target assembler parsers a chance to handle variant expressions
first. Use this to turn the PPC modifiers into PPC specific expressions,
allowing them to work on constants.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189400 91177308-0d34-0410-b5e6-96231b3b80d8
f69a29b23a116a3520f185054290c445abf9aa62 27-Aug-2013 Charles Davis <cdavis5x@gmail.com> Revert "Fix the build broken by r189315." and "Move everything depending on Object/MachOFormat.h over to Support/MachO.h."

This reverts commits r189319 and r189315. r189315 broke some tests on what I
believe are big-endian platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189321 91177308-0d34-0410-b5e6-96231b3b80d8
9c3dd1b0d1e96ef408b68da3b06c6ebd6c943601 27-Aug-2013 Charles Davis <cdavis5x@gmail.com> Move everything depending on Object/MachOFormat.h over to Support/MachO.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189315 91177308-0d34-0410-b5e6-96231b3b80d8
f27c35347aa9fdd36c4ed6268380e2574ccfc87f 25-Aug-2013 Jakub Staszak <kubastaszak@gmail.com> Fix #include guard.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189199 91177308-0d34-0410-b5e6-96231b3b80d8
f44026bf2639561364747fb6c419eeb5f531e5b9 21-Aug-2013 NAKAMURA Takumi <geek4civic@gmail.com> MCFunction.h: Prune \returns to fix a warning in r188881. [-Wdocumentation]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188897 91177308-0d34-0410-b5e6-96231b3b80d8
171ac8ca175bec5bc0bff8b3006850f70e0569c9 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Add YAML MCModule representation to enable MC CFG testing.

Like yaml ObjectFiles, this will be very useful for testing the MC CFG
implementation (mostly MCObjectDisassembler), by matching the output
with YAML, and for potential users of the MC CFG, by using it as an input.

There isn't much to the actual format, it is just a serialization of the
MCModule class. Of note:
- Basic block references (pred/succ, ..) are represented by the BB's
start address.
- Just as in the MC CFG, instructions are MCInsts with a size.
- Operands have a prefix representing the type (only register and
immediate supported here).
- Instruction opcodes are represented by their names; enum values aren't
stable, enum names mostly are: usually, a change to a name would need
lots of changes in the backend anyway.
Same with registers.

All in all, an example is better than 1000 words, here goes:

A simple binary:

Disassembly of section __TEXT,__text:
100000f9c: 48 8b 46 08 movq 8(%rsi), %rax
100000fa0: 0f be 00 movsbl (%rax), %eax
100000fa3: 3b 04 25 48 00 00 00 cmpl 72, %eax
100000faa: 0f 8c 07 00 00 00 jl 7 <.Lend>
100000fb0: 2b 04 25 48 00 00 00 subl 72, %eax
100000fb7: c3 ret

And the (pretty verbose) generated YAML:

- StartAddress: 0x0000000100000F9C
Size: 20
Type: Text
- Inst: MOV64rm
Size: 4
Ops: [ RRAX, RRSI, I1, R, I8, R ]
- Inst: MOVSX32rm8
Size: 3
Ops: [ REAX, RRAX, I1, R, I0, R ]
- Inst: CMP32rm
Size: 7
Ops: [ REAX, R, I1, R, I72, R ]
- Inst: JL_4
Size: 6
Ops: [ I7 ]
- StartAddress: 0x0000000100000FB0
Size: 7
Type: Text
- Inst: SUB32rm
Size: 7
Ops: [ REAX, REAX, R, I1, R, I72, R ]
- StartAddress: 0x0000000100000FB7
Size: 1
Type: Text
- Inst: RET
Size: 1
Ops: [ ]
- Name: __text
- Address: 0x0000000100000F9C
Preds: [ ]
Succs: [ 0x0000000100000FB7, 0x0000000100000FB0 ]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188890 91177308-0d34-0410-b5e6-96231b3b80d8
f176482752fbea3139394e280adfb10270dd3aac 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Support disassembly at arbitrary addresses in MCObjectDisassembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188889 91177308-0d34-0410-b5e6-96231b3b80d8
0f4a5ba24e680f5193792822c9dd066bfccdfc2d 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Add an MCObjectSymbolizer in the MCObjectDisassembler.

Used to detect calls to function symbol stubs (future commit).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188887 91177308-0d34-0410-b5e6-96231b3b80d8
0e83b902834530da4670ad8416cf44afba9b4111 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Add MCObjectDisassembler Mach-O implementation.

- entrypoint, using LC_MAIN.
- static ctors/dtors, using __mod_{init,exit}_func
- translation between effective and object load address, using
dyld's VM address slide.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188886 91177308-0d34-0410-b5e6-96231b3b80d8
484a6eb9cc22db9c78bb93969bc0341c19e7739e 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Add "dynamic disassembly" support to MCObjectDisassembler.

It can now disassemble code in situations where the effective load
address is different than the load address declared in the object file.
This happens for PIC, hence "dynamic".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188884 91177308-0d34-0410-b5e6-96231b3b80d8
0a30cccd493e3bc82a5771ca15326f7cc8b6cb8c 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Add MCObjectDisassembler support for entrypoint + static ctors.

For now, this isn't implemented for any format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188882 91177308-0d34-0410-b5e6-96231b3b80d8
aeb2bbcb6d4f13d0032d57fd1cb1a92da2acd01e 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Split MCBasicBlocks to mirror atom splitting.

When an MCTextAtom is split, all MCBasicBlocks backed by it are
automatically split, with a fallthrough between both blocks, and
the successors moved to the second block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188881 91177308-0d34-0410-b5e6-96231b3b80d8
46d353f8e8a2bbe02e8aa6a2292eae930dd3b7e6 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Add a few needed methods, mainly MCModule::findFirstAtomAfter.

While there, do some minor cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188880 91177308-0d34-0410-b5e6-96231b3b80d8
9bfc0626c02e449dd321a71a09f005ac8239e921 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC: ObjectSymbolizer can now recognize external function stubs.

Only implemented in the Mach-O ObjectSymbolizer.
The testcase sadly introduces a new binary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188879 91177308-0d34-0410-b5e6-96231b3b80d8
cdef37a9d8d559042fe43d8ae91d4b65f281df69 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC: Refactor ObjectSymbolizer to make relocation/section info generation lazy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188878 91177308-0d34-0410-b5e6-96231b3b80d8
07e8f8f64308239ba9f707c869e0f0e53071a992 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Add entrypoint address to MCModule.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188877 91177308-0d34-0410-b5e6-96231b3b80d8
f9e2348e948451d30e4e0593e0beb3bcc31da8da 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Add more MCFunction container methods (find, empty).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188876 91177308-0d34-0410-b5e6-96231b3b80d8
7dac32d07d54231ba203f7c32f3a9f8e6730810f 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Keep pointer to parent MCModule in created MCFunctions.

Also, drive-by cleaning around createFunction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188875 91177308-0d34-0410-b5e6-96231b3b80d8
e0511ded947bc9a63608b94909da888e97a0b4e4 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: uint64_t -> size_t for vector size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188872 91177308-0d34-0410-b5e6-96231b3b80d8
73260db46b9daf8d0b60298d9d50fb0a3af8f8af 21-Aug-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC CFG: Add a getter for MCDataAtom's data array.

While there, switch to new-style documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188871 91177308-0d34-0410-b5e6-96231b3b80d8
337439d12d2e2a9e820e0aeee261bbdb935fc0a5 14-Aug-2013 Tim Northover <tnorthover@apple.com> Support C99 hexadecimal floating-point literals in assembly

It's useful to be able to write down floating-point numbers without having to
worry about what they'll be rounded to (as C99 discovered), this extends that
ability to the MC assembly parsers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188370 91177308-0d34-0410-b5e6-96231b3b80d8
1c9cd021c8999d9c2c0786dff074d1e75bbd0eb2 09-Aug-2013 Saleem Abdulrasool <compnerd@compnerd.org> [CodeGen] prevent abnormal on invalid attributes

Currently, when an invalid attribute is encountered on processing a .s file,
clang will abort due to llvm_unreachable. Invalid user input should not cause
an abnormal termination of the compiler. Change the interface to return a
boolean to indicate the failure as a first step towards improving hanlding of
malformed user input to clang.

Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188047 91177308-0d34-0410-b5e6-96231b3b80d8
fab2daa4a1127ecb217abe2b07c1769122b6fee1 08-Aug-2013 Stephen Hines <srhines@google.com> Merge commit '10251753b6897adcd22cc981c0cc42f348c109de' into merge-20130807


Change-Id: I29d8c1e321a4a380b6013f00bac6a8e4b593cc4e
44c8e346c79cc2affa31385df254b85aa0f5c869 01-Aug-2013 Daniel Malea <daniel.malea@intel.com> Fixed the Intel-syntax X86 disassembler to respect the (existing) option for hexadecimal immediates, to match AT&T syntax. This also brings a new option for C-vs-MASM-style hex.

Patch by Richard Mitton
Reviewed: http://llvm-reviews.chandlerc.com/D1243

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187614 91177308-0d34-0410-b5e6-96231b3b80d8
f63ef914b67593e4b20a0b85e889380c20b41f55 24-Jul-2013 Craig Topper <craig.topper@gmail.com> Split generated asm mnemonic matching table into a separate table for each asm variant.

This removes the need to store the asm variant in each row of the single table that existed before. Shaves ~16K off the size of X86AsmParser.o.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187026 91177308-0d34-0410-b5e6-96231b3b80d8
71dc2e6f45a5b00dec24a26ab2864690cbba5ea4 23-Jul-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> Revert "Remove use of asymmetric std::lower_bound comparator."

This reverts commit r185676.
Originally done because of VS 2008.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186969 91177308-0d34-0410-b5e6-96231b3b80d8
741e37ed0de4a65eab69e0967a5da3eb1adc01ef 22-Jul-2013 Jim Grosbach <grosbach@apple.com> MC: mayAffectControlFlow() handling for variadic instructions.

Variadic MC instructions don't note whether the variable operands
are uses or defs, so mayAffectControlFlow() must conservatively
assume they are defs and return true if the PC is in the operand


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186846 91177308-0d34-0410-b5e6-96231b3b80d8
7a34599db017a5486cf7cd11eb124984acec8286 09-Jul-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [PowerPC] Revert r185476 and fix up TLS variant kinds

In the commit message to r185476 I wrote:

>The PowerPC-specific modifiers VK_PPC_TLSGD and VK_PPC_TLSLD
>correspond exactly to the generic modifiers VK_TLSGD and VK_TLSLD.
>This causes some confusion with the asm parser, since VK_PPC_TLSGD
>is output as @tlsgd, which is then read back in as VK_TLSGD.
>To avoid this confusion, this patch removes the PowerPC-specific
>modifiers and uses the generic modifiers throughout. (The only
>drawback is that the generic modifiers are printed in upper case
>while the usual convention on PowerPC is to use lower-case modifiers.
>But this is just a cosmetic issue.)

This was unfortunately incorrect, there is is fact another,
serious drawback to using the default VK_TLSLD/VK_TLSGD
variant kinds: using these causes ELFObjectWriter::RelocNeedsGOT
to return true, which in turn causes the ELFObjectWriter to emit
an undefined reference to _GLOBAL_OFFSET_TABLE_.

This is a problem on powerpc64, because it uses the TOC instead
of the GOT, and the linker does not provide _GLOBAL_OFFSET_TABLE_,
so the symbol remains undefined. This means shared libraries
using TLS built with the integrated assembler are currently

While the whole RelocNeedsGOT / _GLOBAL_OFFSET_TABLE_ situation
probably ought to be properly fixed at some point, for now I'm
simply reverting the r185476 commit. Now this in turn exposes
the breakage of handling @tlsgd/@tlsld in the asm parser that
this check-in was originally intended to fix.

To avoid this regression, I'm also adding a different fix for
this problem: while common code now parses @tlsgd as VK_TLSGD,
a special hack in the asm parser translates this code to the
platform-specific VK_PPC_TLSGD that the back-end now expects.
While this is not really pretty, it's self-contained and
shouldn't hurt anything else for now. One the underlying
problem is fixed, this hack can be reverted again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185945 91177308-0d34-0410-b5e6-96231b3b80d8
80646283796b20c6a1b7d8eb69ce6f0478d54383 06-Jul-2013 Nico Rieck <nico.rieck@gmail.com> MC: Implement COFF .linkonce directive

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185753 91177308-0d34-0410-b5e6-96231b3b80d8
5679d7da014e415237a4a4f7d61a119a8c84cfd9 05-Jul-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> Remove use of asymmetric std::lower_bound comparator.

VS 2008 doesn't like it when in debug mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185676 91177308-0d34-0410-b5e6-96231b3b80d8
58fc1f52ce070003acbdfedc85d52ba999a2bd11 02-Jul-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [PowerPC] Remove VK_PPC_TLSGD and VK_PPC_TLSLD

The PowerPC-specific modifiers VK_PPC_TLSGD and VK_PPC_TLSLD
correspond exactly to the generic modifiers VK_TLSGD and VK_TLSLD.
This causes some confusion with the asm parser, since VK_PPC_TLSGD
is output as @tlsgd, which is then read back in as VK_TLSGD.

To avoid this confusion, this patch removes the PowerPC-specific
modifiers and uses the generic modifiers throughout. (The only
drawback is that the generic modifiers are printed in upper case
while the usual convention on PowerPC is to use lower-case modifiers.
But this is just a cosmetic issue.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185476 91177308-0d34-0410-b5e6-96231b3b80d8
a3863ea2dacafc925a8272ebf9884fc64bef686c 02-Jul-2013 Rafael Espindola <rafael.espindola@gmail.com> Remove address spaces from MC.

This is dead code since PIC16 was removed in 2010. The result was an odd mix,
where some parts would carefully pass it along and others would assert it was
zero (most of the object streamer for example).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185436 91177308-0d34-0410-b5e6-96231b3b80d8
228e0afcfd0d5f167a95c6ddbec2c6a4a90b6d2b 02-Jul-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [PowerPC] Add support for TLS data relocations

This adds support for TLS data relocations and modifiers:
.quad target@dtpmod
.quad target@tprel
.quad target@dtprel
Currently exploited by the asm parser only.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185394 91177308-0d34-0410-b5e6-96231b3b80d8
b02f1e9a6bc332ebd77571fdffcdc44d77e76b31 27-Jun-2013 Serge Pavlov <sepavloff@gmail.com> Use MCFillFragment for zero-initialized data.
It fixes PR16338 (ICE when compiling very large two-dimensional array).

Differential Revision: http://llvm-reviews.chandlerc.com/D1043

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185080 91177308-0d34-0410-b5e6-96231b3b80d8
5de735a962a255676cf3a9bc255579d465670633 25-Jun-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [PowerPC] Support @got modifier

Add VK_... values and relocation types necessary to support
the @got family of modifiers. Used by the asm parser only.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184860 91177308-0d34-0410-b5e6-96231b3b80d8
fe2e66a6dab6162fb10ed2d576cd122f34d2626f 23-Jun-2013 David Blaikie <dblaikie@gmail.com> DebugInfo: PR14404: Avoid truncating 64 bit values into 32 bits for ULEB128/SLEB128 generation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184669 91177308-0d34-0410-b5e6-96231b3b80d8
cab0a1933875935c717136d251e2af9749533ba8 21-Jun-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [PowerPC] Support various tls-related modifiers

The current code base only supports the minimum set of tls-related
relocations and @modifiers that are necessary to support compiler-
generated code. This patch extends this to the full set defined
in the ABI (and supported by the GNU assembler) for the benefit
of the assembler parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184551 91177308-0d34-0410-b5e6-96231b3b80d8
f7c1ee79fe90353fcd3f545f9d45a01a837bbf4b 21-Jun-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [PowerPC] Support @higher et.al. modifiers

This adds support for the @higher, @highera, @highest, and @highesta
modifers, including some missing relocation types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184550 91177308-0d34-0410-b5e6-96231b3b80d8
f8f87dcfceadd1b842d130303a7091ad7d7d67d0 21-Jun-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [PowerPC] Support @toc@h modifier

This adds the relocation type and other necessary infrastructure
to use the @toc@h modifier in the assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184549 91177308-0d34-0410-b5e6-96231b3b80d8
d2849572463da994c685b3bd7a60d5a7566c01e3 21-Jun-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [PowerPC] Support @h modifier

This adds necessary infrastructure to support the @h modifier.
Note that all required relocation types were already present
(and unused).

This patch provides support for using @h in the assembler;
it would also be possible to now use this feature in code
generated by the compiler, but this is not done yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184548 91177308-0d34-0410-b5e6-96231b3b80d8
92cfa61c50d01307d658753f8d47f4e8555a6fa9 21-Jun-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [PowerPC] Rename some more VK_PPC_ enums

This renames more VK_PPC_ enums, to make them more closely reflect
the @modifier string they represent. This also prepares for adding
a bunch of new VK_PPC_ enums in upcoming patches.

For consistency, some MO_ flags related to VK_PPC_ enums are
likewise renamed.

No change in behaviour.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184547 91177308-0d34-0410-b5e6-96231b3b80d8
846565924a6f2932efc75c249b29c3619e587bbb 21-Jun-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [PowerPC] Clean up VK_PPC_TOC... names

This is another minor cleanup; to bring enum names in line
with the corresponding @modifier names, this renames:


No code change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184491 91177308-0d34-0410-b5e6-96231b3b80d8
4df4bccc71ea0477836db9a417d3da202c2baa09 19-Jun-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [MC/DWARF] Generate multiple .debug_line entries for adjacent .loc directives

The compiler occasionally generates multiple .loc directives in a row
(at the same instruction address). These need to be transformed into
multple actual .debug_line table entries, since they are used to signal
certain information to the debugger (e.g. if the opening brace of a
function body is on the same line as the declaration).

The MCAsmStreamer version of EmitDwarfLocDirective handles this
correctly by emitting a .loc directive every time it is called.
However, the MCObjectStream version simply defaults to recording
the information and emitting only a single table entry later,
e.g. when EmitInstruction is called.

This patch introduces a MCAsmStreamer::EmitDwarfLocDirective
version that emits a line table entry for a .loc directive
that may already be pending before recording the new directive.
(This is similar to how this is handled in GNU as.)

With this patch (and the code alignment factor patch) applied,
I'm now getting identical DWARF .debug sections for all test-suite
object files on PowerPC for the internal and the external assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184357 91177308-0d34-0410-b5e6-96231b3b80d8
99cb622041a0839c7dfcf0263c5102a305a0fdb5 18-Jun-2013 Bill Wendling <isanbard@gmail.com> Use pointers to the MCAsmInfo and MCRegInfo.

Someone may want to do something crazy, like replace these objects if they
change or something.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184175 91177308-0d34-0410-b5e6-96231b3b80d8
b86a0cdb674549d8493043331cecd9cbf53b80da 15-Jun-2013 Andrew Trick <atrick@apple.com> Machine Model: Add MicroOpBufferSize and resource BufferSize.

Replace the ill-defined MinLatency and ILPWindow properties with
with straightforward buffer sizes:

These can be used to more precisely model instruction execution if desired.

Disabled some misched tests temporarily. They'll be reenabled in a few commits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184032 91177308-0d34-0410-b5e6-96231b3b80d8
76858a7abd4faeb462e04f177666b87b23b65287 14-Jun-2013 Rafael Espindola <rafael.espindola@gmail.com> Replace use of PathV1.h in MCContext.cpp.

GetCurrentDirectory is now unused. Remove it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184003 91177308-0d34-0410-b5e6-96231b3b80d8
1878f9a7874b1ff569d745c0269f49d3daf7203d 12-Jun-2013 Stephen Hines <srhines@google.com> Merge commit '100fbdd06be7590b23c4707a98cd605bdb519498' into merge_20130612
c1f4a4b2640dfc871bacacef53a95f1c96a9fe48 12-Jun-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [MC/DWARF] Support .debug_frame / .debug_line code alignment factors

I've been comparing the object file output of LLVM's integrated
assembler against the external assembler on PowerPC, and one
area where differences still remain are in DWARF sections.

In particular, the GNU assembler generates .debug_frame and
.debug_line sections using a code alignment factor of 4, since
all PowerPC instructions have size 4 and must be aligned to a
multiple of 4. However, current MC code hard-codes a code
alignment factor of 1.

This patch changes this by adding a "minimum instruction alignment"
data element to MCAsmInfo and using this as code alignment factor.

This requires passing a MCContext into MCDwarfLineAddr::Encode
and MCDwarfLineAddr::EncodeAdvanceLoc. Note that one caller,
MCDwarfLineAddr::Write, didn't actually have that information
available. However, it turns out that this routine is in fact
never used in the whole code base, so the patch simply removes
it. If it turns out to be needed again at a later time, it
could be re-added with an updated interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183834 91177308-0d34-0410-b5e6-96231b3b80d8
2ee6c7ff80a5b2ff84d882c24db4bad35b948f91 02-Jun-2013 Jim Grosbach <grosbach@apple.com> Whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183086 91177308-0d34-0410-b5e6-96231b3b80d8
23ed37a6b76e79272194fb46597f7280661b828f 01-Jun-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> Make SubRegIndex size mandatory, following r183020.

This also makes TableGen able to compute sizes/offsets of synthesized
indices representing tuples.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183061 91177308-0d34-0410-b5e6-96231b3b80d8
bed23081860275c79137f65d592920e7991b8198 31-May-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> Add a way to define the bit range covered by a SubRegIndex.

NOTE: If this broke your out-of-tree backend, in *RegisterInfo.td, change
the instances of SubRegIndex that have a comps template arg to use the
ComposedSubRegIndex class instead.

In TableGen land, this adds Size and Offset attributes to SubRegIndex,
and the ComposedSubRegIndex class, for which the Size and Offset are
computed by TableGen. This also adds an accessor in MCRegisterInfo, and
Size/Offsets for the X86 and ARM subreg indices.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183020 91177308-0d34-0410-b5e6-96231b3b80d8
b54d29735af9ddabce268c817ccc2ab3eb54d719 30-May-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MCObjectSymbolizer: Switch from IntervalMap to sorted vector, following r182625.

This removes the need for the missing SectionRef operator< workaround, and fixes
an IntervalMap assert about alignment on MSVC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182949 91177308-0d34-0410-b5e6-96231b3b80d8
2275cfd75b65ede0f46f3cf914e76a38daf96417 28-May-2013 Chad Rosier <mcrosier@apple.com> Remove the MCRegAliasIterator tables and compute the aliases dynamically.

The size reduction in the RegDiffLists are rather dramatic. Here are a few
size differences for MCTargetDesc.o files (before and after) in bytes:
R600 - 36160B - 11184B - 69% reduction
ARM - 28480B - 8368B - 71% reduction
Mips - 816B - 576B - 29% reduction

One side effect of dynamically computing the aliases is that the iterator does
not guarantee that the entries are ordered or that duplicates have been removed.
The documentation implies this is a safe assumption and I found no clients that
requires these attributes (i.e., strict ordering and uniqueness).

My local LNT tester results showed no execution-time failures or significant
compile-time regressions (i.e., beyond what I would consider noise) for -O0g,
-O2 and -O3 runs on x86_64 and i386 configurations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182783 91177308-0d34-0410-b5e6-96231b3b80d8
de7cbbfcce5c068f0699bdcb6dac093c0c91ba6f 25-May-2013 Quentin Colombet <qcolombet@apple.com> Follow up of the introduction of MCSymbolizer.
- Ressurect old MCDisassemble API to soften transition.
- Extend MCTargetDesc to set target specific symbolizer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182688 91177308-0d34-0410-b5e6-96231b3b80d8
ef99356dfebb96f6f90efb912c2877214bad060e 24-May-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> MC: Disassembled CFG reconstruction.

This patch builds on some existing code to do CFG reconstruction from
a disassembled binary:
- MCModule represents the binary, and has a list of MCAtoms.
- MCAtom represents either disassembled instructions (MCTextAtom), or
contiguous data (MCDataAtom), and covers a specific range of addresses.
- MCBasicBlock and MCFunction form the reconstructed CFG. An MCBB is
backed by an MCTextAtom, and has the usual successors/predecessors.
- MCObjectDisassembler creates a module from an ObjectFile using a
disassembler. It first builds an atom for each section. It can also
construct the CFG, and this splits the text atoms into basic blocks.

MCModule and MCAtom were only sketched out; MCFunction and MCBB were
implemented under the experimental "-cfg" llvm-objdump -macho option.
This cleans them up for further use; llvm-objdump -d -cfg now generates
graphviz files for each function found in the binary.

In the future, MCObjectDisassembler may be the right place to do
"intelligent" disassembly: for example, handling constant islands is just
a matter of splitting the atom, using information that may be available
in the ObjectFile. Also, better initial atom formation than just using
sections is possible using symbols (and things like Mach-O's
function_starts load command).

This brings two minor regressions in llvm-objdump -macho -cfg:
- The printing of a relocation's referenced symbol.
- An annotation on loop BBs, i.e., which are their own successor.

Relocation printing is replaced by the MCSymbolizer; the basic CFG
annotation will be superseded by more related functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182628 91177308-0d34-0410-b5e6-96231b3b80d8
2c94d0faa0e1c268893d5e04dc77e8a35889db00 24-May-2013 Ahmed Bougacha <ahmed.bougacha@gmail.com> Add MCSymbolizer for symbolic/annotated disassembly.

This is a basic first step towards symbolization of disassembled
instructions. This used to be done using externally provided (C API)
callbacks. This patch introduces:
- the MCSymbolizer class, that mimics the same functions that were used
in the X86 and ARM disassemblers to symbolize immediate operands and
to annotate loads based off PC (for things like c string literals).
- the MCExternalSymbolizer class, which implements the old C API.
- the MCRelocationInfo class, which provides a way for targets to
translate relocations (either object::RelocationRef, or disassembler
C API VariantKinds) to MCExprs.
- the MCObjectSymbolizer class, which does symbolization using what it
finds in an object::ObjectFile. This makes simple symbolization (with
no fancy relocation stuff) work for all object formats!
- x86-64 Mach-O and ELF MCRelocationInfos.
- A basic ARM Mach-O MCRelocationInfo, that provides just enough to
support the C API VariantKinds.

Most of what works in otool (the only user of the old symbolization API
that I know of) for x86-64 symbolic disassembly (-tvV) works, namely:
- symbol references: call _foo; jmp 15 <_foo+50>
- relocations: call _foo-_bar; call _foo-4
- __cf?string: leaq 193(%rip), %rax ## literal pool for "hello"
Stub support is the main missing part (because libObject doesn't know,
among other things, about mach-o indirect symbols).

As for the MCSymbolizer API, instead of relying on the disassemblers
to call the tryAdding* methods, maybe this could be done automagically
using InstrInfo? For instance, even though PC-relative LEAs are used
to get the address of string literals in a typical Mach-O file, a MOV
would be used in an ELF file. And right now, the explicit symbolization
only recognizes PC-relative LEAs. InstrInfo should have already have
most of what is needed to know what to symbolize, so this can
definitely be improved.

I'd also like to remove object::RelocationRef::getValueString (it seems
only used by relocation printing in objdump), as simply printing the
created MCExpr is definitely enough (and cleaner than string concats).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182625 91177308-0d34-0410-b5e6-96231b3b80d8
edaa58ee66699b99841ee5dfdd485aedbae3bf90 24-May-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> [PowerPC] Clean up generation of ha16() / lo16() markers

When targeting the Darwin assembler, we need to generate markers ha16() and
lo16() to designate the high and low parts of a (symbolic) immediate. This
is necessary not just for plain symbols, but also for certain symbolic
expression, typically along the lines of ha16(A - B). The latter doesn't
work when simply using VariantKind flags on the symbol reference.
This is why the current back-end uses hacks (explicitly called out as such
via multiple FIXMEs) in the symbolLo/symbolHi print methods.

This patch uses target-defined MCExpr codes to represent the Darwin
ha16/lo16 constructs, following along the lines of the equivalent solution
used by the ARM back end to handle their :upper16: / :lower16: markers.
This allows us to get rid of special handling both in the symbolLo/symbolHi
print method and in the common code MCExpr::print routine. Instead, the
ha16 / lo16 markers are printed simply in a custom print routine for the
target MCExpr types. (As a result, the symbolLo/symbolHi print methods
can now replaced by a single printS16ImmOperand routine that also handles
symbolic operands.)

The patch also provides a EvaluateAsRelocatableImpl routine to handle
ha16/lo16 constructs. This is not actually used at the moment by any
in-tree code, but is provided as it makes merging into David Fang's
out-of-tree Mach-O object writer simpler.

Since there is no longer any need to treat VK_PPC_GAS_HA16 and
VK_PPC_DARWIN_HA16 differently, they are merged into a single
VK_PPC_ADDR16_HA (and likewise for the _LO16 types).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182616 91177308-0d34-0410-b5e6-96231b3b80d8
549221f18c8248cd5daa8967ba999b91b1fe2584 23-May-2013 Chad Rosier <mcrosier@apple.com> Minor fix to comment from my previous commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182536 91177308-0d34-0410-b5e6-96231b3b80d8
6cd0d18f5ef4405bfc6d0b42a0cfc8e36a7c7c3d 23-May-2013 Chad Rosier <mcrosier@apple.com> Simplify the logic described in the comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182534 91177308-0d34-0410-b5e6-96231b3b80d8
0e1fae4cf22956f59d392b2fc1681075804596ba 22-May-2013 Chad Rosier <mcrosier@apple.com> Add the IncludeSelf parameter to the MCSubRegIterator and MCSuperRegIterator
constructors. No functional change.
Part of rdar://12906217

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182490 91177308-0d34-0410-b5e6-96231b3b80d8
4ef61f2ad4ff509ee05c7051d359009511f81226 15-May-2013 Rafael Espindola <rafael.espindola@gmail.com> Cleanup relocation sorting for ELF.

We want the order to be deterministic on all platforms. NAKAMURA Takumi
fixed that in r181864. This patch is just two small cleanups:

* Move the function to the cpp file. It is only passed to array_pod_sort.
* Remove the ppc implementation which is now redundant

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181910 91177308-0d34-0410-b5e6-96231b3b80d8
db3cc56e7018f6a553ba6bea8aeb6ee32aa121d8 15-May-2013 Ulrich Weigand <ulrich.weigand@de.ibm.com> Remove MCELFObjectTargetWriter::adjustFixupOffset hack

Now that PowerPC no longer uses adjustFixupOffset, and no other
back-end (ever?) did, we can remove the infrastructure itself
(incidentally addressing a FIXME to that effect).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181895 91177308-0d34-0410-b5e6-96231b3b80d8
1fe14c56f11c76aa90f27da633380548a9ee71a5 15-May-2013 NAKAMURA Takumi <geek4civic@gmail.com> ELFRelocationEntry::operator<(): Try to stabilize the order. r_offset was insufficient to sort Relocs.

It should fix llvm/test/CodeGen/ARM/ehabi-mc-compact-pr*.ll on some hosts.

0 R_ARM_PREL31 .text
0 R_ARM_NONE __aeabi_unwind_cpp_pr0

FIXME: I am not sure of the directions of extra comparators, in Type and Index.
For now, they are different from the direction in r_offset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181864 91177308-0d34-0410-b5e6-96231b3b80d8
4a971705bc6030dc2e4338b3cd5cffa2e0f88b7b 13-May-2013 Rafael Espindola <rafael.espindola@gmail.com> Remove the MachineMove class.

It was just a less powerful and more confusing version of
MCCFIInstruction. A side effect is that, since MCCFIInstruction uses
dwarf register numbers, calls to getDwarfRegNum are pushed out, which
should allow further simplifications.

I left the MachineModuleInfo::addFrameMove interface unchanged since
this patch was already fairly big.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181680 91177308-0d34-0410-b5e6-96231b3b80d8
5c332dbd30d9398ed25b30c3080506f7b8e92290 05-May-2013 Dmitri Gribenko <gribozavr@gmail.com> Add ArrayRef constructor from None, and do the cleanups that this constructor enables

Patch by Robert Wilhelm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181138 91177308-0d34-0410-b5e6-96231b3b80d8
26f3bb997f0c5d7951d61d28a26ca6ac1481090c 03-May-2013 John McCall <rjmccall@apple.com> In MC asm parsing, account for the possibility of whitespace within
the "identifier" parsed by the frontend callback by skipping forward
until we've consumed a token that ends at the point dictated by the

In addition, inform the callback when it's parsing an unevaluated
operand (e.g. mov eax, LENGTH A::x) as opposed to an evaluated one
(e.g. mov eax, [A::x]).

This commit depends on a clang commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180978 91177308-0d34-0410-b5e6-96231b3b80d8
38578c4919ea18ceb27e29988b2d857afe6215bf 03-May-2013 Stephen Hines <srhines@google.com> Merge remote-tracking branch 'upstream/master' into merge-20130502


Change-Id: I027581a4390ec3ce4cd8d33da8b5f4c0c7d372c8
13131e62fc9a523b3cc8ad98cc9def97ff89391a 26-Apr-2013 Adrian Prantl <aprantl@apple.com> Cleanup and document MachineLocation.
Clarify documentation and API to make the difference between register and
register-indirect addressed locations more explicit. Put in a comment
to point out that with the current implementation we cannot specify
a register-indirect location with offset 0 (a breg 0 in DWARF).
No functionality change intended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180641 91177308-0d34-0410-b5e6-96231b3b80d8
9a0e12a6ed7db1bf49e4676932427e91ae4eb9be 23-Apr-2013 Matt Arsenault <Matthew.Arsenault@amd.com> Remove unused DwarfSectionOffsetDirective string

The value isn't actually used, and setting it emits a COFF specific

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180064 91177308-0d34-0410-b5e6-96231b3b80d8
248f4965d29362db182d642cdf5fcbeba5c997a4 23-Apr-2013 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add the OpDecl to the InlineAsmIdentifierInfo struct and in turn
the MCParsedAsmOperand.
Part of rdar://13663589

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180054 91177308-0d34-0410-b5e6-96231b3b80d8
6804971dcfbba1dcf7b0f8335588ba2ab6b0f073 22-Apr-2013 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Remove the identifier parsing logic from the AsmParser. This is
now taken care of by the frontend, which allows us to parse arbitrary C/C++
Part of rdar://13663589

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180037 91177308-0d34-0410-b5e6-96231b3b80d8
44021515d76ec9b529f2adbc252552869b1357d5 22-Apr-2013 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Refactor/clean up the SemaLookup interface. No functional
change indended.
Part of rdar://13663589

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180028 91177308-0d34-0410-b5e6-96231b3b80d8
df39be6cb4eb44011db3d3e86f8fe463f81ce127 17-Apr-2013 Peter Collingbourne <peter@pcc.me.uk> Add support for subsections to the ELF assembler. Fixes PR8717.

Differential Revision: http://llvm-reviews.chandlerc.com/D598

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179725 91177308-0d34-0410-b5e6-96231b3b80d8
0437ef6510795353a405cd6e119a2175d65fe0d1 15-Apr-2013 Jim Grosbach <grosbach@apple.com> Simplify the MCInst operator iterator declaration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179541 91177308-0d34-0410-b5e6-96231b3b80d8
f16b08de8a57b921ef10f96d5e233027530db448 12-Apr-2013 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add a new AsmRewriteKind, AOK_Delete. To be used in a future
Part of rdar://13453209

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179325 91177308-0d34-0410-b5e6-96231b3b80d8
18d49acdab79d6f0966b47182b6c3a2ba3d9f80f 11-Apr-2013 Nico Rieck <nico.rieck@gmail.com> MC: Support COFF image-relative MCSymbolRefs

Add support for the COFF relocation types IMAGE_REL_I386_DIR32NB and
IMAGE_REL_AMD64_ADDR32NB for 32- and 64-bit respectively. These are
similar to normal 4-byte relocations except that they do not include
the base address of the image.

Image-relative relocations are used for debug information (32-bit) and
SEH unwind tables (64-bit).

A new MCSymbolRef variant called 'VK_COFF_IMGREL32' is introduced to
specify such relocations. For AT&T assembly, this variant can be accessed
using the symbol suffix '@imgrel'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179240 91177308-0d34-0410-b5e6-96231b3b80d8
62c75ad4301f07c94d7a231d2da9f9cd47b7824c 10-Apr-2013 Bill Wendling <isanbard@gmail.com> Track the compact unwind encoding for when we are unable to generate compact unwind information.

Compact unwind has an encoding for when we're not able to generate compact
unwind and must generate an EH frame instead. Track that, but still emit that CU

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179220 91177308-0d34-0410-b5e6-96231b3b80d8
ba69b366929a39d393e7eed0bbf2edc31d8de599 10-Apr-2013 Chad Rosier <mcrosier@apple.com> Reapply r179115, but use parsePrimaryExpression a little more judiciously.
Test cases that regressed due to r179115, plus a few more, were added in
r179182. Original commit message below:

[ms-inline asm] Use parsePrimaryExpr in lieu of parseExpression if we need to
parse an identifier. Otherwise, parseExpression may parse multiple tokens,
which makes it impossible to properly compute an immediate displacement.
An example of such a case is the source operand (i.e., [Symbol + ImmDisp]) in
the below example:

__asm mov eax, [Symbol + ImmDisp]

Part of rdar://13611297

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179187 91177308-0d34-0410-b5e6-96231b3b80d8
27554ee1d8348d06741b9e697be173c5514dac0d 09-Apr-2013 Rafael Espindola <rafael.espindola@gmail.com> Remove unused method and default values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179124 91177308-0d34-0410-b5e6-96231b3b80d8
3eb6d7fcd024b67d548e4c3a075682d7cff1599e 09-Apr-2013 Chad Rosier <mcrosier@apple.com> Revert r179115 as it looks to have killed the ASan tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179120 91177308-0d34-0410-b5e6-96231b3b80d8
d4727e3798981af3d1308418464a10a398290851 09-Apr-2013 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Use parsePrimaryExpr in lieu of parseExpression if we need to
parse an identifier. Otherwise, parseExpression may parse multiple tokens,
which makes it impossible to properly compute an immediate displacement.
An example of such a case is the source operand (i.e., [Symbol + ImmDisp]) in
the below example:

__asm mov eax, [Symbol + ImmDisp]

The existing test cases exercise this patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179115 91177308-0d34-0410-b5e6-96231b3b80d8
b976e407dcd7794eb9e151b81cdc8fbbe05e6bd8 09-Apr-2013 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Maintain a StringRef to reference a symbol in a parsed operand,
rather than deriving the StringRef from the Start and End SMLocs.

Using the Start and End SMLocs works fine for operands such as [Symbol], but
not for operands such as [Symbol + ImmDisp]. All existing test cases that
reference a variable exercise this patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179109 91177308-0d34-0410-b5e6-96231b3b80d8
ed36a478671cd30bd9ec9505739fae7ea4798b40 08-Apr-2013 Matt Arsenault <Matthew.Arsenault@amd.com> Update documentation.

First feature is not CPU subtype anymore since r134127

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179038 91177308-0d34-0410-b5e6-96231b3b80d8
6b369ceb582f2deba9c252af301667975456ff86 08-Apr-2013 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add support for ImmDisp [ Symbol ] memory operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179030 91177308-0d34-0410-b5e6-96231b3b80d8
1b8f277ee937777f51224b249eb1a736d78ba326 19-Mar-2013 Chad Rosier <mcrosier@apple.com> Dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177450 91177308-0d34-0410-b5e6-96231b3b80d8
023c8802203d7f3b433d93233ccee6f8cce9ca5d 19-Mar-2013 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Move the size directive asm rewrite into the target specific
logic as a QOI cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177413 91177308-0d34-0410-b5e6-96231b3b80d8
2d4629c5d7dcc6582fa7b85a517744f1a3654eba 19-Mar-2013 Stephen Hines <srhines@google.com> Merge branch 'upstream' into merge_2013_03_18
570cae29bcbddc7516296e4206c293bc13abc9ef 19-Mar-2013 Jakub Staszak <kubastaszak@gmail.com> Make methods const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177350 91177308-0d34-0410-b5e6-96231b3b80d8
9e999adb48beb61663f6abca667b8c85068ee585 12-Mar-2013 Manman Ren <mren@apple.com> Debug Info: use SmallVector instead of std::vector in MCDwarfDirsCUMap and MCDwarfFilesCUMap

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176893 91177308-0d34-0410-b5e6-96231b3b80d8
3de61b4c0144748e4b9157e2c22fe4ea685981a2 07-Mar-2013 Manman Ren <mren@apple.com> Debug Info: store the files and directories for each compile unit.

We now emit a line table for each compile unit. To reduce the prologue size
of each line table, the files and directories used by each compile unit are
stored in std::map<unsigned, std::vector< > > instead of std::vector< >.

The prologue for a lto'ed image can be as big as 93K. Duplicating 93K for each
compile unit causes a huge increase of debug info. With this patch, each
prologue will only emit the files required by the compile unit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176605 91177308-0d34-0410-b5e6-96231b3b80d8
5adb136be579e8fff3734461580cb34d1d2983b8 06-Mar-2013 Stephen Hines <srhines@google.com> Merge commit 'b3201c5cf1e183d840f7c99ff779d57f1549d8e5' into merge_20130226


Change-Id: I24a4fbce62eb39d924efee3c687b55e1e17b30cd
cb2ae3d98e3bb36e5813f8f69b00d39efd026dcd 20-Feb-2013 Jim Grosbach <grosbach@apple.com> MCParser: Update method names per coding guidelines.



No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175675 91177308-0d34-0410-b5e6-96231b3b80d8
77afbdce53aa740777486b0cc4e9df151ae65468 19-Feb-2013 Jack Carter <jcarter@mips.com> ELF symbol table field st_other support,
excluding visibility bits.

Generic STO handling at the Target level.

The st_other field of the ELF symbol table is one
byte in size. The first 2 bytes are used for generic
visibility and are currently handled by llvm.

The other six bits are processor specific and need
to be set at the target level.

A couple of notes:

The new static methods for accessing and setting the "other"
flags in include/llvm/MC/MCELF.h match the style guide
and not the other methods in the file. I don't like the
inconsistency, but feel I should follow the prescribed
lowerUpper() convention.

STO_ value definitions are not specified in gnu land as
consistently as the STT_ and STB_ fields. Probably because
the latter were defined in a standards doc and the former
defined partially in code. I have stuck with the full byte
definition of the flags.

Contributer: Zoran Jovanovic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175561 91177308-0d34-0410-b5e6-96231b3b80d8
4913d7b3b22a0302bea69c98673b887ae2d89e40 19-Feb-2013 Eric Christopher <echristo@gmail.com> Grammar.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175493 91177308-0d34-0410-b5e6-96231b3b80d8
469b144f1ce7dc3984cda265bc23ed0b41c20584 12-Feb-2013 Chad Rosier <mcrosier@apple.com> [ms-inline-asm] Implement align directive (which is roughly equivalent to .align).

Also, allow _EMIT and __EMIT for the emit directive. We already do the same

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175008 91177308-0d34-0410-b5e6-96231b3b80d8
dc08bfbd565ba6540be698bba551b2039661299d 12-Feb-2013 Jack Carter <jcarter@mips.com> This patch just fixes up various llvm formatting
violations such as tabs, blanks at eol and long

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175007 91177308-0d34-0410-b5e6-96231b3b80d8
c5ef7eee3c412b0f334e395b0cf7c363200c2f79 12-Feb-2013 Krzysztof Parzyszek <kparzysz@codeaurora.org> Allow optionally generating pubnames section in DWARF info. Introduce
option "generate-dwarf-pubnames" to control it, set to "false" by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174981 91177308-0d34-0410-b5e6-96231b3b80d8
f12b379448a9f2131feba15c01714e44bedda120 11-Feb-2013 David Blaikie <dblaikie@gmail.com> Fix unnecessary removal of const through cast machinery

I have some uncommitted changes to the cast code that catch this sort of thing
at compile-time but I still need to do some other cleanup before I can enable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174853 91177308-0d34-0410-b5e6-96231b3b80d8
fa05def52c6bb8266d856a9af2de6fa066d93d44 06-Feb-2013 Jim Grosbach <grosbach@apple.com> Allow targets to add custom asm operand matching logic.

For example, ARM has several instructions with a literal '#0' immediate in the syntax
that's not represented as an actual operand. The asm matcher is expected a token
operand, but the parser will have created an immediate operand. This is currently
handled by dedicated per-instruction C++ munging of the ParsedAsmOperand list, but
will be better handled by this hook.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174487 91177308-0d34-0410-b5e6-96231b3b80d8
43213cf1ac05b4198fcf9fa85d7da85477daafd1 05-Feb-2013 Manman Ren <mren@apple.com> Dwarf: support for LTO where a single object file can have multiple line tables

We generate one line table for each compilation unit in the object file.
Reviewed by Eric and Kevin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174445 91177308-0d34-0410-b5e6-96231b3b80d8
f918d7fd7393049bc87bc03fda2d2cd3cec1dacb 05-Feb-2013 Derek Schuff <dschuff@google.com> [MC] Bundle alignment: Invalidate relaxed fragments

Currently, when a fragment is relaxed, its size is modified, but its
offset is not (it gets laid out as a side effect of checking whether
it needs relaxation), then all subsequent fragments are invalidated
because their offsets need to change. When bundling is enabled,
relaxed fragments need to get laid out again, because the increase in
size may push it over a bundle boundary. So instead of only
invalidating subsequent fragments, also invalidate the fragment that
gets relaxed, which causes it to get laid out again.

This patch also fixes some trailing whitespace and fixes the
bundling-related debug output of MCFragments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174401 91177308-0d34-0410-b5e6-96231b3b80d8
97ebecaa7975016f03769e98f4d462cfc77c1e25 05-Feb-2013 Eli Bendersky <eliben@google.com> Format comments & clean whitespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174396 91177308-0d34-0410-b5e6-96231b3b80d8
9c5b94b6be08afe22b576d007353a0002603cef1 05-Feb-2013 Jack Carter <jcarter@mips.com> This patch changes a static_cast to dyn_cast
for MipsELFStreamer objects.

Contributer: Jack Carter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174354 91177308-0d34-0410-b5e6-96231b3b80d8
2d4fd7e6b68753d975d2ed35ccb7ba2ad4483013 01-Feb-2013 Chandler Carruth <chandlerc@gmail.com> Fix a think-o in the condition here. =[ I would commit the test that
caught this, but I want that in a separate commit in case there is
a need to revert the actual functional bit as part of reverting other
patches. This way, the commits relating to just getting the RTTI bits in
place are separate from the functional changes that start using them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174117 91177308-0d34-0410-b5e6-96231b3b80d8
5da3665cc501ed8928e63678254357214ec0b9eb 01-Feb-2013 Chandler Carruth <chandlerc@gmail.com> Give the MCStreamer class hierarchy LLVM RTTI facilities for use with
isa<> and dyn_cast<>. In several places, code is already hacking around
the absence of this, and there seem to be several interfaces that might
be lifted and/or devirtualized using this.

This change was based on a discussion with Jim Grosbach about how best
to handle testing for specific MCStreamer subclasses. He said that this
was the correct end state, and everything else was too hacky so
I decided to just make it so.

No functionality should be changed here, this is just threading the kind
through all the constructors and setting up the classof overloads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174113 91177308-0d34-0410-b5e6-96231b3b80d8
72062f5744557e270a38192554c3126ea5f97434 31-Jan-2013 Tim Northover <Tim.Northover@arm.com> Add AArch64 as an experimental target.

This patch adds support for AArch64 (ARM's 64-bit architecture) to
LLVM in the "experimental" category. Currently, it won't be built
unless requested explicitly.

This initial commit should have support for:
+ Assembly of all scalar (i.e. non-NEON, non-Crypto) instructions
(except the late addition CRC instructions).
+ CodeGen features required for C++03 and C99.
+ Compilation for the "small" memory model: code+static data <
+ Absolute and position-independent code.
+ GNU-style (i.e. "__thread") TLS.
+ Debugging information.

The principal omission, currently, is performance tuning.

This patch excludes the NEON support also reviewed due to an outbreak of
batshit insanity in our legal department. That will be committed soon bringing
the changes to precisely what has been approved.

Further reviews would be gratefully received.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174054 91177308-0d34-0410-b5e6-96231b3b80d8
9a7bf438b50fed2c77f0e2bc835defa5b4728f82 30-Jan-2013 Jack Carter <jcarter@mips.com> This patch reworks how llvm targets set
and update ELF header e_flags.

Currently gathering information such as symbol,
section and data is done by collecting it in an
MCAssembler object. From MCAssembler and MCAsmLayout
objects ELFObjectWriter::WriteObject() forms and
streams out the ELF object file.

This patch just adds a few members to the MCAssember
class to store and access the e_flag settings. It
allows for runtime additions to the e_flag by
assembler directives. The standalone assembler can
get to MCAssembler from getParser().getStreamer().getAssembler().

This patch is the generic infrastructure and will be
followed by patches for ARM and Mips for their target
specific use.

Contributer: Jack Carter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173882 91177308-0d34-0410-b5e6-96231b3b80d8
e752feee5228bfa33acee35ef9c606ce12f0f173 23-Jan-2013 Eli Bendersky <eliben@google.com> Clean up assignment of CalleeSaveStackSlotSize: get rid of the default and explicitly set this in every target that needs to change it from the default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173270 91177308-0d34-0410-b5e6-96231b3b80d8
9dd2a3b1f2c253e20262535bb89b1ab6cc680ece 22-Jan-2013 Eli Bendersky <eliben@google.com> Initial patch for x32 ABI support.

Add the x32 environment kind to the triple, and separate the concept of
pointer size and callee save stack slot size, since they're not equal
on x32.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173175 91177308-0d34-0410-b5e6-96231b3b80d8
059800f9e3fee2852672f846d91a2da14da7783a 21-Jan-2013 Stephen Hines <srhines@google.com> Merge remote-tracking branch 'upstream/master' into merge-llvm


Change-Id: Ib339baf88df5b04870c8df1bedcfe1f877ccab8d
a94c33942373cb504b6e64c95415165907a89d34 18-Jan-2013 Daniel Dunbar <daniel@zuster.org> [MC/Mach-O] Add support for linker options in Mach-O files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172779 91177308-0d34-0410-b5e6-96231b3b80d8
cddd236e8a5acb80e9a0e79dc63f6cfaa8205b86 18-Jan-2013 Daniel Dunbar <daniel@zuster.org> [MC/Mach-O] Add AsmParser support for .linker_option directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172778 91177308-0d34-0410-b5e6-96231b3b80d8
bfdcc70d34f9c2bf3d4815c6d29fd43f01db8b76 18-Jan-2013 Daniel Dunbar <daniel@zuster.org> [MC] Expose ParseEscapedString to target AsmParser implementations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172777 91177308-0d34-0410-b5e6-96231b3b80d8
505bca3617fe310a5ff07914e3cf3ea6ae4d27ed 17-Jan-2013 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add support for the 'SIZE' and 'LENGTH' operators.
Part of rdar://12576868

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172743 91177308-0d34-0410-b5e6-96231b3b80d8
665c34bd014f17e7593e2a51de6e8391483afb03 16-Jan-2013 Eli Bendersky <eliben@google.com> Clean up some unnecessary headers and forward declarations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172638 91177308-0d34-0410-b5e6-96231b3b80d8
f9f40bd158942f8cd1c3ed62106280f36a022cde 16-Jan-2013 Eli Bendersky <eliben@google.com> Now that GenericAsmParser was folded into AsmParser, some methods and types can
return into the safe harbor of AsmParser's private areas.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172637 91177308-0d34-0410-b5e6-96231b3b80d8
75c9b9384f50e9387f24dd7ce6af403cbda6d19a 16-Jan-2013 Kevin Enderby <enderby@apple.com> We want the dwarf AT_producer for assembly source files to match clang's
AT_producer. Which includes clang's version information so we can tell
which version of the compiler was used.

This is the first of two steps to allow us to do that. This is the llvm-mc
change to provide a method to set the AT_producer string. The second step,
coming soon to a clang near you, will have the clang driver pass the value
of getClangFullVersion() via an flag when invoking the integrated assembler
on assembly source files.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172630 91177308-0d34-0410-b5e6-96231b3b80d8
6a3cbc35a75468d565385a0db8e7051478f383f4 16-Jan-2013 Eli Bendersky <eliben@google.com> Replace virtual hasFixups with explicit fragment type checks

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172622 91177308-0d34-0410-b5e6-96231b3b80d8
171192f149dce679cd520f85ffced4789448b017 16-Jan-2013 Eli Bendersky <eliben@google.com> Use the ExtensionDirectiveHandler type in other places where it makes sense.

Since we already have this type it's a shame to keep dragging a pair of object
and method around explicitly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172584 91177308-0d34-0410-b5e6-96231b3b80d8
72f7bfbf0e02bb11d3e7cca1f9598c5f9d9fa2ca 16-Jan-2013 Eric Christopher <echristo@gmail.com> Split address information for DWARF5 split dwarf proposal. This involves
using the DW_FORM_GNU_addr_index and a separate .debug_addr section which
stays in the executable and is fully linked.

Sneak in two other small changes:

a) Print out the debug_str_offsets.dwo section.
b) Change form we're expecting the entries in the debug_str_offsets.dwo
section to take from ULEB128 to U32.

Add tests for all of this in the fission-cu.ll test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172578 91177308-0d34-0410-b5e6-96231b3b80d8
9ccb76998f741a7d3f0f217392a783dfb99c6e87 16-Jan-2013 Eli Bendersky <eliben@google.com> Optimize the memory usage of MC bundling, by creating a new type of fragment
into which we can emit single instructions without fixups (which is most
instructions). This is an optimization required because MCDataFragment
is prety large (240 bytes on x64), with no change in functionality.

For large programs, this reduces memory usage overhead required for bundling
by 40%.

To make the code as palatable as possible, the MCEncodedFragment interface was
further fragmented (no pun intended) and MCEncodedFragmentWithFixups is used
as the interface to work against when the user expects fixups. MCDataFragment
and MCRelaxableFragment implement this interface, while the new
MCCompactEncodedInstFragment implements MCEncodeFragment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172572 91177308-0d34-0410-b5e6-96231b3b80d8
c0c67b03b03d73d3614a084d467a388c35d264d1 15-Jan-2013 Eli Bendersky <eliben@google.com> Properly encapsulate additional methods and data from AsmParser.

This finally allows AsmParser to no longer list GenericAsmParser as a friend.
All member vars directly accessed by GenericAsmParser have been properly
encapsulated and exposed through the MCAsmParser interface. This reduces the
coupling between AsmParser and GenericAsmParser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172490 91177308-0d34-0410-b5e6-96231b3b80d8
318cad33231f765f9b6b2af4bb43f8c281b99d19 14-Jan-2013 Eli Bendersky <eliben@google.com> Move CheckForValidSection to the MCAsmParser interface.

Now that it behaves itself in terms of streamer independence (r172450), this
method can be moved to MCAsmParser to be available to all extensions,
overriding, etc.

-- -This line, and those below, will be ignored--

M lib/MC/MCParser/AsmParser.cpp
M include/llvm/MC/MCParser/MCAsmParser.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172451 91177308-0d34-0410-b5e6-96231b3b80d8
030f63a397edc20f8f661bac62f7b90cb5cf57bc 14-Jan-2013 Eli Bendersky <eliben@google.com> Expose an InitToTextSection through MCStreamer.

The aim of this patch is to fix the following piece of code in the
platform-independent AsmParser:

void AsmParser::CheckForValidSection() {
if (!ParsingInlineAsm && !getStreamer().getCurrentSection()) {
TokError("expected section directive before assembly directive");
"__TEXT", "__text",
0, SectionKind::getText()));

This was added for the "-n" option of llvm-mc.

The proposed fix adds another virtual method to MCStreamer, called
InitToTextSection. Conceptually, it's similar to the existing
InitSections which initializes all common sections and switches to
text. The new method is implemented by each platform streamer in a way
that it sees fit. So AsmParser can now do this:

void AsmParser::CheckForValidSection() {
if (!ParsingInlineAsm && !getStreamer().getCurrentSection()) {
TokError("expected section directive before assembly directive");

Which is much more reasonable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172450 91177308-0d34-0410-b5e6-96231b3b80d8
9bac6b29b832419f8b76bb2c27af74bb57a8d99a 14-Jan-2013 Eli Bendersky <eliben@google.com> Move ParseMacroArgument to the MCAsmParser interfance.

Since it's used by extensions. One further step to fully decoupling
GenericAsmParser from an intimate knowledge of the internals of AsmParser,
pointing it to the MCASmParser interface instead (like all other parser
extensions do).

Since this change moves the MacroArgument type to the interface header, it's
renamed to be a bit more descriptive in a general context.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172449 91177308-0d34-0410-b5e6-96231b3b80d8
733c336327621d41617d3d49c7b86199a361a367 14-Jan-2013 Eli Bendersky <eliben@google.com> Encapsulate the MacroEnabled flag in AsmParser behind accessor methods.

The methods are also exposed via the MCAsmParser interface, which allows more
than one client to control them. Previously, GenericAsmParser was playing with
a member var in AsmParser directly (by virtue of being its friend).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172440 91177308-0d34-0410-b5e6-96231b3b80d8
c1ec207b615cb058d30dc642ee311ed06fe59cfe 10-Jan-2013 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add support for calling functions from inline assembly.
Part of rdar://12991541

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674be02d525d4e24bc6943ed9274958c580bcfbc 10-Jan-2013 Jakub Staszak <kubastaszak@gmail.com> Fix include guards so they exactly match file names.

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1ced208be9cab0f994c5df9000da36bc313b2507 09-Jan-2013 Eric Christopher <echristo@gmail.com> Last in the series of removing unnecessary '0' arguments for
address space. Reordered the EmitULEB128IntValue arguments to
make this easier.

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47579cf390c42e0577519e0a2b6044baece9df00 09-Jan-2013 Andrew Trick <atrick@apple.com> MIsched: add an ILP window property to machine model.

This was an experimental option, but needs to be defined
per-target. e.g. PPC A2 needs to aggressively hide latency.

I converted some in-order scheduling tests to A2. Hal is working on
more test cases.

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ca1dd05c3c12e857614ae6837f90894396225dd6 09-Jan-2013 Eric Christopher <echristo@gmail.com> These functions have default arguments of 0 for the last arg. Use
them and add one where it seemed obvious that we wanted one.

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0fdcef6030fb69bee45f604c71c53bebb17c1079 08-Jan-2013 Eli Bendersky <eliben@google.com> Simplify the code a bit: MCRelaxableFragment doesn't need a separate getInstSize
method because getContents().size() already covers it. So computeFragmentSize
can use the generic MCEncodedFragment interface when querying both Data and
Relaxable fragments for contents sizes.

No change in functionality

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251040bc18eedfa56d01fe92836e55cfd8c5d990 08-Jan-2013 Eli Bendersky <eliben@google.com> Renamed MCInstFragment to MCRelaxableFragment and added some comments.

No change in functionality.

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6c1d4972cf1cd6b6072e31c05f97abb1ed7a8497 07-Jan-2013 Eli Bendersky <eliben@google.com> Add the align_to_end option to .bundle_lock in the MC implementation of aligned
bundling. The document describing this feature and the implementation has also
been updated:


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60230ef987f234df88a166fc7878cf3051bca0a1 04-Jan-2013 Eric Christopher <echristo@gmail.com> Add section information for the DWARF5 split debug proposal
string offset section.

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58a2cbef4aac9ee7d530dfb690c78d6fc11a2371 02-Jan-2013 Chandler Carruth <chandlerc@gmail.com> Resort the #include lines in include/... and lib/... with the
utils/sort_includes.py script.

Most of these are updating the new R600 target and fixing up a few
regressions that have creeped in since the last time I sorted the

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85e910fe5cc308956edc0c71165b6714a1654df9 24-Dec-2012 NAKAMURA Takumi <geek4civic@gmail.com> llvm/MC/MCMachObjectWriter.h: ComputeSymbolTable(): Prune one description in the comment. [-Wdocumentation]

/// \param StringIndexMap [out] - Map from symbol names to offsets in the string table.

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70fe6ecb6d0c3b556f2c4e3c1e5013da821beded 21-Dec-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Add a missing assertion, the null register has no register units.

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4766ef41b31e4f97bce1179c3b0398303bf65356 20-Dec-2012 Eli Bendersky <eliben@google.com> Aligned bundling support. Following the discussion here:

The proposal and implementation are fully documented here:

Tests will follow shortly.

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0eaf5a503e291cfd6d3ad27b6cc3956be2d4b914 20-Dec-2012 Jim Grosbach <grosbach@apple.com> Fix inadvertant delete of 'has'.

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6af228a92a7b8414fa3c1b3c37ee659d32e66e1b 20-Dec-2012 Roman Divacky <rdivacky@freebsd.org> Remove MCTargetAsmLexer and its derived classes now that edis,
its only user, is gone.

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46367768f75c860d64874067800711120fdbfc22 20-Dec-2012 Jim Grosbach <grosbach@apple.com> Clean up some DOxygen comments.

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39758cd55d994c0899acfb365d717e9f877ca001 20-Dec-2012 Jim Grosbach <grosbach@apple.com> Clean up some DOxygen comments.

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fbf3b4a07690751f72302757058ab0298dfb832e 20-Dec-2012 Jim Grosbach <grosbach@apple.com> MC: Add MCInstrDesc::mayAffectControlFlow() method.

MC disassembler clients (LLDB) are interested in querying if an
instruction may affect control flow other than by virtue of being
an explicit branch instruction. For example, instructions which
write directly to the PC on some architectures.

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16f3204b95c952a70c9d2aa3b423162215beb6ae 20-Dec-2012 Jim Grosbach <grosbach@apple.com> Add isSubRegisterEq() and isSuperRegisterEq().

isSub and isSuper return false if RegA == RegB. Add variants which also
include the identity function.

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e188fb7dd91c6fee15aa18c877d664d63d736000 20-Dec-2012 Jim Grosbach <grosbach@apple.com> Move isSubRegister() and isSuperRegister to MCRegisterInfo.

These were defined on TargetRegisterInfo, but they don't use any information
that's not available in MCRegisterInfo, so sink them down to be available
at the MC layer.

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dd2fa5195ea2d98b2b4ee18f9894ad674f132a40 20-Dec-2012 Jim Grosbach <grosbach@apple.com> Fix doc comment. '///' not '//'.

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28d24c95ade0e1fe13d40a068179e61ab5622782 19-Dec-2012 Benjamin Kramer <benny.kra@googlemail.com> Remove edis remnant.

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759e3fa641d0ad01012d16d913015c9f69c8d2ab 19-Dec-2012 Roman Divacky <rdivacky@freebsd.org> Remove edis - the enhanced disassembler. Fixes PR14654.

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6c583141bf6b7a6b5f8125c1037ecbc089813288 18-Dec-2012 Eric Christopher <echristo@gmail.com> Add support for passing -main-file-name all the way through to
the assembler.

Part of PR14624

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6c31d313575bba1b87b583260f39f0b0dae143f4 17-Dec-2012 Chandler Carruth <chandlerc@gmail.com> Prepare LLVM to fix PR14625, exposing a hook in MCContext to manage the
compilation directory.

This defaults to the current working directory, just as it always has,
but now an assembler can choose to override it with a custom directory.
I've taught llvm-mc about this option and added a test case.

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2c3a4641a7785da78839caf574277df9cd93b52c 16-Dec-2012 Reed Kotler <rkotler@mips.com> This patch is needed to make c++ exceptions work for mips16.

Mips16 is really a processor decoding mode (ala thumb 1) and in the same
program, mips16 and mips32 functions can exist and can call each other.

If a jal type instruction encounters an address with the lower bit set, then
the processor switches to mips16 mode (if it is not already in it). If the
lower bit is not set, then it switches to mips32 mode.

The linker knows which functions are mips16 and which are mips32.
When relocation is performed on code labels, this lower order bit is
set if the code label is a mips16 code label.

In general this works just fine, however when creating exception handling
tables and dwarf, there are cases where you don't want this lower order
bit added in.

This has been traditionally distinguished in gas assembly source by using a
different syntax for the label.

lab1: ; this will cause the lower order bit to be added
lab2=. ; this will not cause the lower order bit to be added

In some cases, it does not matter because in dwarf and debug tables
the difference of two labels is used and in that case the lower order
bits subtract each other out.

To fix this, I have added to mcstreamer the notion of a debuglabel.
The default is for label and debug label to be the same. So calling
EmitLabel and EmitDebugLabel produce the same result.

For various reasons, there is only one set of labels that needs to be
modified for the mips exceptions to work. These are the "$eh_func_beginXXX"

Mips overrides the debug label suffix from ":" to "=." .

This initial patch fixes exceptions. More changes most likely
will be needed to DwarfCFException to make all of this work
for actual debugging. These changes will be to emit debug labels in some
places where a simple label is emitted now.

Some historical discussion on this from gcc can be found at:

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99cbdde6198623ff014c776743caec2cf48f4840 14-Dec-2012 Pedro Artigas <partigas@apple.com> Add more reset methods to make all objects that the backend may use for outputting code have a reset, some are not used but were declared for completeness

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b453e16855f347e300f1dc0cd0dfbdd65c27b0d2 14-Dec-2012 Bill Schmidt <wschmidt@linux.vnet.ibm.com> This patch improves the 64-bit PowerPC InitialExec TLS support by providing
for a wider range of GOT entries that can hold thread-relative offsets.
This matches the behavior of GCC, which was not documented in the PPC64 TLS
ABI. The ABI will be updated with the new code sequence.

Former sequence:

ld 9,x@got@tprel(2)
add 9,9,x@tls

New sequence:

addis 9,2,x@got@tprel@ha
ld 9,x@got@tprel@l(9)
add 9,9,x@tls

Note that a linker optimization exists to transform the new sequence into
the shorter sequence when appropriate, by replacing the addis with a nop
and modifying the base register and relocation type of the ld.

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05fa24c5749da265ee9f82eeead8ccdf2804f721 13-Dec-2012 Eric Christopher <echristo@gmail.com> Remove extraneous debugging code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170090 91177308-0d34-0410-b5e6-96231b3b80d8
b1cc6f3dff96bfb26e0f5b62a187374b6a7629a1 13-Dec-2012 Eric Christopher <echristo@gmail.com> Add a way of printing out an arbitrary label name for a section
given the section.

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5399d2502acaf96fe8420e61913e77f0b23650ff 12-Dec-2012 Pedro Artigas <partigas@apple.com> Make the MCStreamer have a reset method and call that after finalization of the asm printer,
also changed MCContext to a single reset only method for simplicity as requested on the list

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d52a2c0a31a49e1a8fa16f6b975d01b1e934a49f 12-Dec-2012 Eli Bendersky <eliben@google.com> Make naming consistent, add comments and sanity asserts

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349c2787cf9e174c8aa955bf8e3b09a405b2aece 12-Dec-2012 Bill Schmidt <wschmidt@linux.vnet.ibm.com> This patch implements local-dynamic TLS model support for the 64-bit
PowerPC target. This is the last of the four models, so we now have
full TLS support.

This is mostly a straightforward extension of the general dynamic model.
I had to use an additional Chain operand to tie ADDIS_DTPREL_HA to the
register copy following ADDI_TLSLD_L; otherwise everything above the
ADDIS_DTPREL_HA appeared dead and was removed.

As before, there are new test cases to test the assembly generation, and
the relocations output during integrated assembly. The expected code
gen sequence can be read in test/CodeGen/PowerPC/tls-ld.ll.

There are a couple of things I think can be done more efficiently in the
overall TLS code, so there will likely be a clean-up patch forthcoming;
but for now I want to be sure the functionality is in place.


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37c7461fc3f1983a81bfe934855d707fd6572e78 12-Dec-2012 Logan Chien <tzuhsiang.chien@gmail.com> Add ARM NONE and PREL31 relocation types.

Add R_ARM_NONE and R_ARM_PREL31 relocation types
to MCExpr. Both of them will be used while
generating .ARM.extab and .ARM.exidx sections.

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57ac1f458a754f30cf500410b438fb260f9b8fe5 11-Dec-2012 Bill Schmidt <wschmidt@linux.vnet.ibm.com> This patch implements the general dynamic TLS model for 64-bit PowerPC.

Given a thread-local symbol x with global-dynamic access, the generated
code to obtain x's address is:

Instruction Relocation Symbol
addis ra,r2,x@got@tlsgd@ha R_PPC64_GOT_TLSGD16_HA x
addi r3,ra,x@got@tlsgd@l R_PPC64_GOT_TLSGD16_L x
bl __tls_get_addr(x@tlsgd) R_PPC64_TLSGD x
R_PPC64_REL24 __tls_get_addr
<use address in r3>

The implementation borrows from the medium code model work for introducing
special forms of ADDIS and ADDI into the DAG representation. This is made
slightly more complicated by having to introduce a call to the external
function __tls_get_addr. Using the full call machinery is overkill and,
more importantly, makes it difficult to add a special relocation. So I've
introduced another opcode GET_TLS_ADDR to represent the function call, and
surrounded it with register copies to set up the parameter and return value.

Most of the code is pretty straightforward. I ran into one peculiarity
when I introduced a new PPC opcode BL8_NOP_ELF_TLSGD, which is just like
BL8_NOP_ELF except that it takes another parameter to represent the symbol
("x" above) that requires a relocation on the call. Something in the
TblGen machinery causes BL8_NOP_ELF and BL8_NOP_ELF_TLSGD to be treated
identically during the emit phase, so this second operand was never
visited to generate relocations. This is the reason for the slightly
messy workaround in PPCMCCodeEmitter.cpp:getDirectBrEncoding().

Two new tests are included to demonstrate correct external assembly and
correct generation of relocations using the integrated assembler.

Comments welcome!


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07f6a4fde0a1b081fbefd986345c9b2f4f85e88a 10-Dec-2012 Lang Hames <lhames@gmail.com> Defer call to InitSections until after MCContext has been initialized. If
InitSections is called before the MCContext is initialized it could cause
duplicate temporary symbols to be emitted later (after context initialization
resets the temporary label counter).

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f43e3fdb4ffddff6f71b5597c813c43e1e206564 10-Dec-2012 Eli Bendersky <eliben@google.com> Cleanup formatting, comments and naming.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169762 91177308-0d34-0410-b5e6-96231b3b80d8
d32260fa904320218ba533b731af941338535232 08-Dec-2012 Logan Chien <tzuhsiang.chien@gmail.com> Fix Windows build breakage.

Windows does not have <stdint.h>, should include
"llvm/Support/DataTypes.h" instead.

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550f0ade457c3b042fa099ecff2c022c7ab58b1e 07-Dec-2012 Eli Bendersky <eliben@google.com> Make the contents of encoded sections SmallVector<char, N> instead of
SmallString. This makes it possible to use the length-erased SmallVectorImpl
in the interface without imposing buffer size. Thus, the size of MCInstFragment
is back down since a preallocated 8-byte contents buffer is enough.

It would be generally a good idea to rid all the fragments of SmallString as
contents, because a vector just makes more sense.

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64d9a3233476553fc950f0f2fc6a2cdd2a4c05cf 07-Dec-2012 Eli Bendersky <eliben@google.com> Refactor MCInstFragment and MCDataFragment to adhere to a common interface,
which removes code duplication and prepares the ground for future additions.

Full discussion:

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ef76b273f96d99a4a260f3dcadde8fbb96256cf3 07-Dec-2012 Eli Bendersky <eliben@google.com> Lift EmitAssignment into MCObjectStreamer which gets rid of at least three
duplicate implementations in format-specific streamers.

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6eb3e87df04f8b035562d9865292c23f5b79f1a2 07-Dec-2012 Tim Northover <Tim.Northover@arm.com> Added Mapping Symbols for ARM ELF

Before this patch, when you objdump an LLVM-compiled file, objdump tried to
decode data-in-code sections as if they were code. This patch adds the missing
Mapping Symbols, as defined by "ELF for the ARM Architecture" (ARM IHI 0044D).

Patch based on work by Greg Fitzgerald.

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645016533d1208d2e7a17d917d64b8b63c4f9939 07-Dec-2012 Logan Chien <tzuhsiang.chien@gmail.com> Split MCELFStreamer into a header file.

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873a1dd7d679ac9a9a92a93a4d2bbb157878efb4 06-Dec-2012 Pedro Artigas <partigas@apple.com> fixed valgrind issues of prior commit, this change applies r169456 changes back to the tree with fixes. on darwin no valgrind issues exist in the tests that used to fail.

original change description:

change MCContext to work on the doInitialization/doFinalization model

reviewed by Evan Cheng <evan.cheng@apple.com>

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c7078924f044584d9e9b277862d34d5b43ff2b1e 06-Dec-2012 NAKAMURA Takumi <geek4civic@gmail.com> Revert r169456, "change MCContext to work on the doInitialization/doFinalization model"

It broke many builders.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169462 91177308-0d34-0410-b5e6-96231b3b80d8
486a7ad94fc948a0f52c32c860cdb2b166741249 06-Dec-2012 Pedro Artigas <partigas@apple.com> change MCContext to work on the doInitialization/doFinalization model

reviewed by Evan Cheng <evan.cheng@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169456 91177308-0d34-0410-b5e6-96231b3b80d8
5c10f509f45820d1198bfb975840e93a782745ac 05-Dec-2012 Eli Bendersky <eliben@google.com> Change std::vector to SmallVector<4> and remove some unused methods.

This is more consistent with other vectors in this code. In addition, I ran some
tests compiling a large program and >96% of fragments have 4 or less fixups, so
SmallVector<4> is a good optimization.

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fa8de2403078353fe3c7ae160bec22fa23d4d315 05-Dec-2012 Eli Bendersky <eliben@google.com> Remove unused methods

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a7e29c878cac1cc7e75959889dd841a16d764988 05-Dec-2012 Eli Bendersky <eliben@google.com> Remove the non-const getInst accessor. It wasn't being used, and isn't very
good for enacpsulation anyway.

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d9791538156702ac1f92ca2984a8ab536deda4f1 05-Dec-2012 Benjamin Kramer <benny.kra@googlemail.com> Try to unbreak the build on hosts that don't transitively pull in a definition for int64_t.

Also use the portable (ugly) format string macros, for MSVC compatibility.

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14ccc9007a932a23201251ced4be4c898a62d6a5 05-Dec-2012 Kevin Enderby <enderby@apple.com> Added a option to the disassembler to print immediates as hex.

This is for the lldb team so most of but not all of the values are
to be printed as hex with this option. Some small values like the
scale in an X86 address were requested to printed in decimal
without the leading 0x.

There may be some tweaks need to places that may still be in
decimal that they want in hex. Specially for arm. I made my best
guess. Any tweaks from here should be simple.

I also did the best I know now with help from the C++ gurus
creating the cleanest formatImm() utility function and containing
the changes. But if someone has a better idea to make something
cleaner I'm all ears and game for changing the implementation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169393 91177308-0d34-0410-b5e6-96231b3b80d8
d7802bf0ddcac16ee910105922492aee86a53e1b 04-Dec-2012 Bill Schmidt <wschmidt@linux.vnet.ibm.com> This patch introduces initial-exec model support for thread-local storage
on 64-bit PowerPC ELF.

The patch includes code to handle external assembly and MC output with the
integrated assembler. It intentionally does not support the "old" JIT.

For the initial-exec TLS model, the ABI requires the following to calculate
the address of external thread-local variable x:

Code sequence Relocation Symbol
ld 9,x@got@tprel(2) R_PPC64_GOT_TPREL16_DS x
add 9,9,x@tls R_PPC64_TLS x

The register 9 is arbitrary here. The linker will replace x@got@tprel
with the offset relative to the thread pointer to the generated GOT
entry for symbol x. It will replace x@tls with the thread-pointer
register (13).

The two test cases verify correct assembly output and relocation output
as just described.

PowerPC-specific selection node variants are added for the two
instructions above: LD_GOT_TPREL and ADD_TLS. These are inserted
when an initial-exec global variable is encountered by
PPCTargetLowering::LowerGlobalTLSAddress(), and later lowered to
machine instructions LDgotTPREL and ADD8TLS. LDgotTPREL is a pseudo
that uses the same LDrs support added for medium code model's LDtocL,
with a different relocation type.

The rest of the processing is straightforward.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169281 91177308-0d34-0410-b5e6-96231b3b80d8
255f89faee13dc491cb64fbeae3c763e7e2ea4e6 03-Dec-2012 Chandler Carruth <chandlerc@gmail.com> Sort the #include lines for the include/... tree with the script.

AKA: Recompile *ALL* the source code!

This one went much better. No manual edits here. I spot-checked for
silliness and grep-checked for really broken edits and everything seemed
good. It all still compiles. Yell if you see something that looks goofy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169133 91177308-0d34-0410-b5e6-96231b3b80d8
d04a8d4b33ff316ca4cf961e06c9e312eff8e64f 03-Dec-2012 Chandler Carruth <chandlerc@gmail.com> Use the new script to sort the includes of every file under lib.

Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
67587f462e746e538322fbf7929b8db5de25ced7 30-Nov-2012 Eric Christopher <echristo@gmail.com> Add the rest of the experimental fission sections to MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168986 91177308-0d34-0410-b5e6-96231b3b80d8
e26e8a64ab37e98c69801ac2028b187773bc1d1f 29-Nov-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Add an MCPhysReg typedef to replace naked uint16_t.

Use this type for arrays of physical registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168850 91177308-0d34-0410-b5e6-96231b3b80d8
6acb53152cd2140bc1f7ec7280bf67823e564ba0 28-Nov-2012 Eric Christopher <echristo@gmail.com> Add brief support for the fission .debug_info.dwo section for
ELF output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168764 91177308-0d34-0410-b5e6-96231b3b80d8
915e46fd967f9a51e128f80d762afd03463a897e 28-Nov-2012 Eric Christopher <echristo@gmail.com> Rearrange ordering of sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168762 91177308-0d34-0410-b5e6-96231b3b80d8
43e1d7aded7bf8486f5b810b6dc85652f99f6ba0 28-Nov-2012 Eric Christopher <echristo@gmail.com> Move and comment accessor routines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168761 91177308-0d34-0410-b5e6-96231b3b80d8
34a9d4b3b9b7858b729a1af67afa721c048fe5e7 27-Nov-2012 Bill Schmidt <wschmidt@linux.vnet.ibm.com> This patch implements medium code model support for 64-bit PowerPC.

The default for 64-bit PowerPC is small code model, in which TOC entries
must be addressable using a 16-bit offset from the TOC pointer. Additionally,
only TOC entries are addressed via the TOC pointer.

With medium code model, TOC entries and data sections can all be addressed
via the TOC pointer using a 32-bit offset. Cooperation with the linker
allows 16-bit offsets to be used when these are sufficient, reducing the
number of extra instructions that need to be executed. Medium code model
also does not generate explicit TOC entries in ".section toc" for variables
that are wholly internal to the compilation unit.

Consider a load of an external 4-byte integer. With small code model, the
compiler generates:

ld 3, .LC1@toc(2)
lwz 4, 0(3)

.section .toc,"aw",@progbits
.tc ei[TC],ei

With medium model, it instead generates:

addis 3, 2, .LC1@toc@ha
ld 3, .LC1@toc@l(3)
lwz 4, 0(3)

.section .toc,"aw",@progbits
.tc ei[TC],ei

Here .LC1@toc@ha is a relocation requesting the upper 16 bits of the
32-bit offset of ei's TOC entry from the TOC base pointer. Similarly,
.LC1@toc@l is a relocation requesting the lower 16 bits. Note that if
the linker determines that ei's TOC entry is within a 16-bit offset of
the TOC base pointer, it will replace the "addis" with a "nop", and
replace the "ld" with the identical "ld" instruction from the small
code model example.

Consider next a load of a function-scope static integer. For small code
model, the compiler generates:

ld 3, .LC1@toc(2)
lwz 4, 0(3)

.section .toc,"aw",@progbits
.tc test_fn_static.si[TC],test_fn_static.si
.type test_fn_static.si,@object
.local test_fn_static.si
.comm test_fn_static.si,4,4

For medium code model, the compiler generates:

addis 3, 2, test_fn_static.si@toc@ha
addi 3, 3, test_fn_static.si@toc@l
lwz 4, 0(3)

.type test_fn_static.si,@object
.local test_fn_static.si
.comm test_fn_static.si,4,4

Again, the linker may replace the "addis" with a "nop", calculating only
a 16-bit offset when this is sufficient.

Note that it would be more efficient for the compiler to generate:

addis 3, 2, test_fn_static.si@toc@ha
lwz 4, test_fn_static.si@toc@l(3)

The current patch does not perform this optimization yet. This will be
addressed as a peephole optimization in a later patch.

For the moment, the default code model for 64-bit PowerPC will remain the
small code model. We plan to eventually change the default to medium code
model, which matches current upstream GCC behavior. Note that the different
code models are ABI-compatible, so code compiled with different models will
be linked and execute correctly.

I've tested the regression suite and the application/benchmark test suite in
two ways: Once with the patch as submitted here, and once with additional
logic to force medium code model as the default. The tests all compile
cleanly, with one exception. The mandel-2 application test fails due to an
unrelated ABI compatibility with passing complex numbers. It just so happens
that small code model was incredibly lucky, in that temporary values in
floating-point registers held the expected values needed by the external
library routine that was called incorrectly. My current thought is to correct
the ABI problems with _Complex before making medium code model the default,
to avoid introducing this "regression."

Here are a few comments on how the patch works, since the selection code
can be difficult to follow:

The existing logic for small code model defines three pseudo-instructions:
LDtoc for most uses, LDtocJTI for jump table addresses, and LDtocCPT for
constant pool addresses. These are expanded by SelectCodeCommon(). The
pseudo-instruction approach doesn't work for medium code model, because
we need to generate two instructions when we match the same pattern.
Instead, new logic in PPCDAGToDAGISel::Select() intercepts the TOC_ENTRY
node for medium code model, and generates an ADDIStocHA followed by either
a LDtocL or an ADDItocL. These new node types correspond naturally to
the sequences described above.

The addis/ld sequence is generated for the following cases:
* Jump table addresses
* Function addresses
* External global variables
* Tentative definitions of global variables (common linkage)

The addis/addi sequence is generated for the following cases:
* Constant pool entries
* File-scope static global variables
* Function-scope static variables

Expanding to the two-instruction sequences at select time exposes the
instructions to subsequent optimization, particularly scheduling.

The rest of the processing occurs at assembly time, in
PPCAsmPrinter::EmitInstruction. Each of the instructions is converted to
a "real" PowerPC instruction. When a TOC entry needs to be created, this
is done here in the same manner as for the existing LDtoc, LDtocJTI, and
LDtocCPT pseudo-instructions (I factored out a new routine to handle this).

I had originally thought that if a TOC entry was needed for LDtocL or
ADDItocL, it would already have been generated for the previous ADDIStocHA.
However, at higher optimization levels, the ADDIStocHA may appear in a
different block, which may be assembled textually following the block
containing the LDtocL or ADDItocL. So it is necessary to include the
possibility of creating a new TOC entry for those two instructions.

Note that for LDtocL, we generate a new form of LD called LDrs. This
allows specifying the @toc@l relocation for the offset field of the LD
instruction (i.e., the offset is replaced by a SymbolLo relocation).
When the peephole optimization described above is added, we will need
to do similar things for all immediate-form load and store operations.

The seven "mcm-n.ll" test cases are kept separate because otherwise the
intermingling of various TOC entries and so forth makes the tests fragile
and hard to understand.

The above assumes use of an external assembler. For use of the
integrated assembler, new relocations are added and used by
PPCELFObjectWriter. Testing is done with "mcm-obj.ll", which tests for
proper generation of the various relocations for the same sequences
tested with the external assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168708 91177308-0d34-0410-b5e6-96231b3b80d8
ed9e442cf098663ce213cb16778b44be466b441f 26-Nov-2012 Benjamin Kramer <benny.kra@googlemail.com> Decouple MCInstBuilder from the streamer per Eli's request.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168597 91177308-0d34-0410-b5e6-96231b3b80d8
391271f3bbcec02e0da26d7c246bfabff5cb4ddf 26-Nov-2012 Benjamin Kramer <benny.kra@googlemail.com> Add MCInstBuilder, a utility class to simplify MCInst creation similar to MachineInstrBuilder.

Simplify some repetitive code with it. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168587 91177308-0d34-0410-b5e6-96231b3b80d8
f4f14f68f6078ea6681ee27b5bf42719d7db3441 25-Nov-2012 Rafael Espindola <rafael.espindola@gmail.com> Add support for .cfi_register now that it is easy to extent the representation
to support it. Original patch with the parsing and plumbing by the PaX team and
Roman Divacky. I added the bits in MCDwarf.cpp and the test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168565 91177308-0d34-0410-b5e6-96231b3b80d8
14a708b98e7192c3038b984dfbd0a7e0d532867d 25-Nov-2012 Rafael Espindola <rafael.espindola@gmail.com> Further cleanups. Thanks for Sean Silva for noticing it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168556 91177308-0d34-0410-b5e6-96231b3b80d8
ff233c9e5c3e439fd1eed84b9a9e88a5370572db 24-Nov-2012 Rafael Espindola <rafael.espindola@gmail.com> Change the representation of MCCFIInstruction.

We now store the Register and Offset directly. MachineLocation is gone (from
this file)!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168536 91177308-0d34-0410-b5e6-96231b3b80d8
7f74d2c2c197eec76ae2b41fed9c227c0dcc04cb 24-Nov-2012 Rafael Espindola <rafael.espindola@gmail.com> Give each MCCFIInstruction its own opcode.
This untangles the switch cases of the old Move and RelMove opcodes a bit
and makes it clear how to add new instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168534 91177308-0d34-0410-b5e6-96231b3b80d8
529a01df02ad221e8e55097a8ee36b85234eb078 24-Nov-2012 Rafael Espindola <rafael.espindola@gmail.com> Move a bit of duplicated code into a helper function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168533 91177308-0d34-0410-b5e6-96231b3b80d8
28c9ea3c13dfb8f6bb3226ba511d189135fcb140 24-Nov-2012 Rafael Espindola <rafael.espindola@gmail.com> Refactor how MCCFIInstructions are created.

Give MCCFIInstruction a single, private constructor and add helper static
methods that create each type of cfi instruction. This is is preparation
for changing its representation. The representation with a pair
MachineLocations older than MC and has been abused quiet a bit to support
more cfi instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168532 91177308-0d34-0410-b5e6-96231b3b80d8
c8fec7e21f5c24303eab8a8592f3b8faff347d86 23-Nov-2012 Rafael Espindola <rafael.espindola@gmail.com> Implement .cfi_undefined. Based on a patch from PaX team, updated by
Roman Divacky. I just added the testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168520 91177308-0d34-0410-b5e6-96231b3b80d8
e3904342515658a8561a53b7ef874aace47b700c 21-Nov-2012 Akira Hatanaka <ahatanaka@mips.com> Add relocations used for mips big GOT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168448 91177308-0d34-0410-b5e6-96231b3b80d8
12cfa119600418d31ceb748d077b3e6f7057a22a 09-Nov-2012 Anton Korobeynikov <asl@math.spbu.ru> Add ARM TARGET2 relocation. The testcase will follow with actualy use-case.
Based on the patch by Logan Chien!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167633 91177308-0d34-0410-b5e6-96231b3b80d8
8d4abb2446f80986ad5136bbec30c5da18cd6f4b 06-Nov-2012 Andrew Trick <atrick@apple.com> misched: TargetSchedule interface for machine resources.

Expose the processor resources defined by the machine model to the
scheduler and other clients through the TargetSchedule interface.

Normalize each resource count with respect to other kinds of
resources. This allows scheduling heuristics to balance resources
against other kinds of resources and latency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167444 91177308-0d34-0410-b5e6-96231b3b80d8
f29c05e883dc46f3f1be9b3a5f5c50ee73899380 27-Oct-2012 Lang Hames <lhames@gmail.com> MCRegisterClass should be returned by const ref, not by value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166822 91177308-0d34-0410-b5e6-96231b3b80d8
efcb3d9c1cd9410949b4005fbe6f2817f8dfe395 26-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add support for the TYPE operator.
Part of rdar://12576868

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166790 91177308-0d34-0410-b5e6-96231b3b80d8
12413ae7cb1d9689c6ef315de6d3d2ca640b8ed0 26-Oct-2012 Kaelyn Uhrain <rikka@google.com> Fix anonymous namespace issue introduced by r166714:
include/llvm/MC/MCTargetAsmParser.h:46:8: error: 'llvm::ParseInstructionInfo' has a field 'llvm::ParseInstructionInfo::AsmRewrites' whose type uses the anonymous namespace [-Werror]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166729 91177308-0d34-0410-b5e6-96231b3b80d8
ec13022c392747ef166e6be738fc6f00bd7c52d3 25-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Perform field lookups with the dot operator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166724 91177308-0d34-0410-b5e6-96231b3b80d8
6a020a71173a3ea7738a9df69982e85ddbfe0303 25-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add support for creating AsmRewrites in the target specific
AsmParser logic. To be used/tested in a subsequent commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166714 91177308-0d34-0410-b5e6-96231b3b80d8
ed2507a9dabc6d10c9e1e3685f528651b8cb73fd 25-Oct-2012 Michael Liao <michael.liao@intel.com> Add 'const' qualifier on member functions not changing its fields.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166708 91177308-0d34-0410-b5e6-96231b3b80d8
aa71428378c1cb491ca60041d8ba7aa110bc963d 25-Oct-2012 Adhemerval Zanella <azanella@linux.vnet.ibm.com> Initial TOC support for PowerPC64 object creation

This patch adds initial PPC64 TOC MC object creation using the small mcmodel
(a single 64K TOC) adding the some TOC relocations (R_PPC64_TOC,
R_PPC64_TOC16, and R_PPC64_TOC16DS).

The addition of 'undefinedExplicitRelSym' hook on 'MCELFObjectTargetWriter'
is meant to avoid the creation of an unreferenced ".TOC." symbol (used in
the .odp creation) as well to set the R_PPC64_TOC relocation target as the
temporary ".TOC." symbol. On PPC64 ABI, the R_PPC64_TOC relocation should
not point to any symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166677 91177308-0d34-0410-b5e6-96231b3b80d8
e1d4a8813427b76c5f59cf5b70a9df734b7e9284 24-Oct-2012 Kevin Enderby <enderby@apple.com> Make branch heavy code for generating marked up disassembly simpler
and easier to read by adding a couple helper functions. Suggestion by
Chandler Carruth and seconded by Meador Inge!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166515 91177308-0d34-0410-b5e6-96231b3b80d8
5a719fcb5ea91ec4e7af6fc2e48ec31774a859dd 23-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add an implementation of the offset operator. This is a follow
on patch to r166433.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166488 91177308-0d34-0410-b5e6-96231b3b80d8
2128aaebd850edc0415ab8f37b907077651d4399 23-Oct-2012 Eli Friedman <eli.friedman@gmail.com> [ms-inline-asm] Implement _emit directive (which is roughly equivalent to .byte).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166451 91177308-0d34-0410-b5e6-96231b3b80d8
3ed0316f756e2f1730f46654776fcf77f5ace7aa 23-Oct-2012 Kevin Enderby <enderby@apple.com> Add support for annotated disassembly output for X86 and arm.

Per the October 12, 2012 Proposal for annotated disassembly output sent out by
Jim Grosbach this set of changes implements this for X86 and arm. The llvm-mc
tool now has a -mdis option to produced the marked up disassembly and a couple
of small example test cases have been added.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166445 91177308-0d34-0410-b5e6-96231b3b80d8
a703fb9e5e86ed29f7334736f7c085ec81a2006f 22-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add the isOffsetOf() function.
Part of rdar://12470317

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166436 91177308-0d34-0410-b5e6-96231b3b80d8
96d58e64cfe88356f8be4ce622b829fbd9fb5908 19-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Have the TargetParser callback to Sema to determine the size of
a memory operand. Retain this information and then add the sizing directives
to the IR. This allows the backend to do proper instruction selection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166316 91177308-0d34-0410-b5e6-96231b3b80d8
faf547053bc097be0e834efd241ccc023777ff38 19-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add a MCAsmParserSemaCallback to the TargetAsmParser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166308 91177308-0d34-0410-b5e6-96231b3b80d8
9abfbdfc77efe715314f8ed673a7b6d25c00ca48 19-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add the isParsingInlineAsm() function to the MCAsmTargetParser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166292 91177308-0d34-0410-b5e6-96231b3b80d8
0d7d11d57f81d2318a730d7599bbdaa67a721150 19-Oct-2012 Nick Lewycky <nicholas@mxc.ca> Pacify -Wnon-virtual-dtor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166270 91177308-0d34-0410-b5e6-96231b3b80d8
3298959540ca744ec16b4c65db244534a929a862 18-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add a size argument to the LookupInlineAsmIdentifier() callback,
which will be used by the asm matcher in the near future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166222 91177308-0d34-0410-b5e6-96231b3b80d8
c8dd27e58301af85979facf291b817802d3523e5 18-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Have the LookupInlineAsmIdentifier() callback function return a
*NamedDecl. In turn, build the expressions after we're finished parsing the
asm. This avoids a crasher if the lookup fails.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166212 91177308-0d34-0410-b5e6-96231b3b80d8
b1f8c139c5c1b1a50bf65b8141dd57434c793e54 18-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Move most of the AsmParsing logic in clang back into the MC
layer. Add the ParseMSInlineAsm() function, which is the new interface to
clang. Also expose the new MCAsmParserSemaCallback interface, which is used
by the back-end to do name lookup in Sema. Finally, remove the now defunct
APIs introduced in r165946.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166183 91177308-0d34-0410-b5e6-96231b3b80d8
fdd6fa89b960088b368231ec08e56a0c0b1e6930 17-Oct-2012 Andrew Trick <atrick@apple.com> misched: Better handling of invalid latencies in the machine model

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166107 91177308-0d34-0410-b5e6-96231b3b80d8
c5ac87d067861309fb461b9c53f9e429fbe0d067 16-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add the helper function, isParseringInlineAsm(). To be used in a future commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166054 91177308-0d34-0410-b5e6-96231b3b80d8
8f138d1121730007f973131ca79a06a58f981011 15-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add a few new APIs to the AsmParser class in support of MS-Style
inline assembly. For the time being, these will be called directly by clang.
However, in the near future I expect these to be sunk back into the MC layer
and more basic APIs (e.g., getClobbers(), getConstraints(), etc.) will be called
by clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165946 91177308-0d34-0410-b5e6-96231b3b80d8
f35c62bf025411393c7df0803851010cc0e597ba 15-Oct-2012 Adhemerval Zanella <azanella@linux.vnet.ibm.com> PowerPC: add EmitTCEntry class for TOC creation

This patch replaces the EmitRawText by a EmitTCEntry class (specialized for
each Streamer) in PowerPC64 TOC entry creation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165940 91177308-0d34-0410-b5e6-96231b3b80d8
84125ca43c758fd21fdab2b05196e0df57c55c96 13-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Remove the MatchInstruction() function. Previously, this was
the interface between the front-end and the MC layer when parsing inline
assembly. Unfortunately, this is too deep into the parsing stack. Specifically,
we're unable to handle target-independent assembly (i.e., assembly directives,
labels, etc.). Note the MatchAndEmitInstruction() isn't the correct
abstraction either. I'll be exposing target-independent hooks shortly, so this
is really just a cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165858 91177308-0d34-0410-b5e6-96231b3b80d8
7a2b624bb34374fe233f71cc5220d5ae0a0971cf 13-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Capitalize per coding standard.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165847 91177308-0d34-0410-b5e6-96231b3b80d8
6e006d3de882784527d4d9cc92b1a91f6773505e 13-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Use the new API introduced in r165830 in lieu of the
MapAndConstraints vector. Also remove the unused Kind argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165833 91177308-0d34-0410-b5e6-96231b3b80d8
0d218994f1ccaacd7c31792af2331ae82bc79c03 13-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add a few data members and member functions to the
MCParsedAsmOperand class in support of ms-style inline assembly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165830 91177308-0d34-0410-b5e6-96231b3b80d8
ed84062812c7b8a82d0e8128a22aa1aa07a14d79 12-Oct-2012 Sean Silva <silvas@purdue.edu> Remove unnecessary classof()'s

isa<> et al. automatically infer when the cast is an upcast (including a
self-cast), so these are no longer necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165767 91177308-0d34-0410-b5e6-96231b3b80d8
85c7b6108f8c8cea77d0bce30343f736f6c15981 10-Oct-2012 Andrew Trick <atrick@apple.com> TODO comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165605 91177308-0d34-0410-b5e6-96231b3b80d8
6312cb099734263f348f36a31b8892b1373a7076 10-Oct-2012 Andrew Trick <atrick@apple.com> misched: Generate IsBuffered flag for machine resources.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165602 91177308-0d34-0410-b5e6-96231b3b80d8
6c7a5ac62ce1c235c455d6b648c6f04aa7a91639 08-Oct-2012 Eric Christopher <echristo@gmail.com> Update comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165431 91177308-0d34-0410-b5e6-96231b3b80d8
685d3486535dc4be65028e01a730a0b3d4803021 05-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add a comment describing the MapAndConstraints.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165326 91177308-0d34-0410-b5e6-96231b3b80d8
9ba9d4d76bfa8de2b05cbce02a5a3ff7d46cb331 05-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add a few typedefs to simplify future changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165324 91177308-0d34-0410-b5e6-96231b3b80d8
e660fc15fe1f1b8a19488f39d0ec09acc79bed0d 04-Oct-2012 Benjamin Kramer <benny.kra@googlemail.com> Hoist some grossly duplicated code from the COFF/ELF/MachO streamers into MCObjectStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165225 91177308-0d34-0410-b5e6-96231b3b80d8
3138659646f3d60a7ee70d49cc03067e3f27a3dc 03-Oct-2012 Craig Topper <craig.topper@gmail.com> Remove unused function that used to get itineraries from SubTargetFeatures. This is done from MCSubTargetInfo these days.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165092 91177308-0d34-0410-b5e6-96231b3b80d8
f9e008bf673a8eeb04766bfc99f51068608809d2 03-Oct-2012 Chad Rosier <mcrosier@apple.com> Revert 165057, per Jim's request. This requires further discussion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165069 91177308-0d34-0410-b5e6-96231b3b80d8
95707c90ccb7309df76ea7f3f0b81495e4f7d0e6 02-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add basic support for wildcard MCParsedAsmOperands. This type
of operand is specific to MS-style inline assembly and should not be generated
when parsing normal assembly.

The purpose of the wildcard operands are to allow the AsmParser to match
multiple instructions (i.e., MCInsts) to a given ms-style asm statement. For
the time being the matcher just returns the first match. This patch only
implements wildcard matches for memory operands. Support for register
wildcards will be added in the near future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165057 91177308-0d34-0410-b5e6-96231b3b80d8
22685876ed7231f32f7d1698c00acab22825b74c 02-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add the convertToMapAndConstraints() function that is used to
map constraints and MCInst operands to inline asm operands. This replaces the
getMCInstOperandNum() function.

The logic to determine the constraints are not in place, so we still default to
a register constraint (i.e., "r"). Also, we no longer build the MCInst but
rather return just the opcode to get the MCInstrDesc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164979 91177308-0d34-0410-b5e6-96231b3b80d8
b4316028b3978e65cc2b97042292637857dfad49 02-Oct-2012 Jim Grosbach <grosbach@apple.com> MachO: direct-to-object attribute for data-in-code markers.

The target backend can support data-in-code load commands even when
the assembler doesn't, or vice-versa. Allow targets to opt-in for


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164974 91177308-0d34-0410-b5e6-96231b3b80d8
17be8a51b09c976d35360916952f275f76acf3b3 01-Oct-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Expose the getReg() function in the base class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164969 91177308-0d34-0410-b5e6-96231b3b80d8
f0070f2a973ff046ee63de827ab32ff215b369b2 01-Oct-2012 Benjamin Kramer <benny.kra@googlemail.com> Provide a shortcut for MCObjectStreamer when emitting fills.

Reduces runtime of i386-large-relocations.s by 10x in Release builds, even more
in Debug+Asserts builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164945 91177308-0d34-0410-b5e6-96231b3b80d8
4bb51cc83badd77bdc482b0594b72cb177f052f6 26-Sep-2012 Craig Topper <craig.topper@gmail.com> Rename virtual table anchors from Anchor() to anchor() for consistency with the rest of the tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164666 91177308-0d34-0410-b5e6-96231b3b80d8
7f8f3f7f6400291d30531c88a98511f9fc626b4c 25-Sep-2012 Chad Rosier <mcrosier@apple.com> Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164570 91177308-0d34-0410-b5e6-96231b3b80d8
2590c2e1e9e2f2a7f28672c10c2df55566238dfa 25-Sep-2012 Chad Rosier <mcrosier@apple.com> Rather then have a wrapper function, have tblgen instantiate the implementation.
Also remove an unused argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164567 91177308-0d34-0410-b5e6-96231b3b80d8
d717a066c6ddaff401b9259579b265eeafb83b6e 22-Sep-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Expose the mnemonicIsValid() function in the AsmParser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164420 91177308-0d34-0410-b5e6-96231b3b80d8
7b6f2034ac355bd3b3cc88960bf8d0e694fe3db4 19-Sep-2012 Preston Gurd <preston.gurd@intel.com> Add support for macro parameters/arguments delimited by spaces,
to improve compatibility with GNU as.

Based on a patch by PaX Team.

Fixed assertion failures on non-Darwin and added additional test cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164248 91177308-0d34-0410-b5e6-96231b3b80d8
f145c135f3a28e2c59bd02e475fbf09f4157c9fb 18-Sep-2012 Roman Divacky <rdivacky@freebsd.org> Avoid symbol name clash when filling TOC.

Patch by Adhemerval Zanella.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164141 91177308-0d34-0410-b5e6-96231b3b80d8
34aadd63346b5f9b98749a306b71fcb00ee6996f 18-Sep-2012 Andrew Trick <atrick@apple.com> Replaced ReInitMCSubtargetInfo with InitMCProcessor.

Now where we used to call ReInitMCSubtargetInfo, we actually recompute
the same information as InitMCSubtargetInfo instead of only setting
the feature bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164105 91177308-0d34-0410-b5e6-96231b3b80d8
39adb180bc2822146618b5bf9059eb7f134914b2 18-Sep-2012 Andrew Trick <atrick@apple.com> Let NULL slip through again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164099 91177308-0d34-0410-b5e6-96231b3b80d8
34301ceca8913f3126339f332d3dc6f2d7ac0d78 18-Sep-2012 Andrew Trick <atrick@apple.com> TargetSchedModel API. Implement latency lookup, disabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164098 91177308-0d34-0410-b5e6-96231b3b80d8
e127dfd0b175b5a336e61fecaad7fc2aec65d95c 18-Sep-2012 Andrew Trick <atrick@apple.com> TableGen subtarget emitter. Initialize MCSubtargetInfo with the new machine model.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164092 91177308-0d34-0410-b5e6-96231b3b80d8
e1b53287179b4b9b5c3c549586f688d3fa2ae8ef 18-Sep-2012 Andrew Trick <atrick@apple.com> Revert r164061-r164067. Most of the new subtarget emitter.

I have to work out the Target/CodeGen header dependencies
before putting this back.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164072 91177308-0d34-0410-b5e6-96231b3b80d8
97d552e5c71dd45e1a124e5a87550270a20a9062 18-Sep-2012 Andrew Trick <atrick@apple.com> Don't use NULL as a fake keyword

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164067 91177308-0d34-0410-b5e6-96231b3b80d8
a2a47d1c50a7acecd729109c334ce3c496f0d549 18-Sep-2012 Andrew Trick <atrick@apple.com> InitMCProcessor

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164066 91177308-0d34-0410-b5e6-96231b3b80d8
12886db4a7af74f17281695320c40248cb263f55 18-Sep-2012 Andrew Trick <atrick@apple.com> TargetSchedModel API. Implement latency lookup, disabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164065 91177308-0d34-0410-b5e6-96231b3b80d8
db7afac4575168c239ac9c570cb7897808f12e30 18-Sep-2012 Andrew Trick <atrick@apple.com> TableGen subtarget emitter. Initialize MCSubtargetInfo with the new machine model.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164061 91177308-0d34-0410-b5e6-96231b3b80d8
3c0e5c9ecedb00d3c36fb2747b642bd3e38d0260 16-Sep-2012 Andrew Trick <atrick@apple.com> Guard fields by NDEBUG until they get used in the release build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163993 91177308-0d34-0410-b5e6-96231b3b80d8
09bc9373f29b56d69ac3160446f25fc8020b3c16 15-Sep-2012 Craig Topper <craig.topper@gmail.com> Use LLVM_DELETED_FUNCTION in place of 'DO NOT IMPLEMENT' comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163969 91177308-0d34-0410-b5e6-96231b3b80d8
99ab6c6035aec3c0e9b0cc5b76a4666fc5fd7b7b 14-Sep-2012 Andrew Trick <atrick@apple.com> TargetSchedModel interface. To be implemented...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163934 91177308-0d34-0410-b5e6-96231b3b80d8
72d048b69705f01d48bdef7b235ec96b24290767 14-Sep-2012 Andrew Trick <atrick@apple.com> Define MC data tables for the new scheduling machine model.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163933 91177308-0d34-0410-b5e6-96231b3b80d8
c5252da873d547a19069eaf9030fec203f128f66 14-Sep-2012 Dmitri Gribenko <gribozavr@gmail.com> Fix Doxygen issues:
* wrap code blocks in \code ... \endcode;
* refer to parameter names in paragraphs correctly (\arg is not what most
people want -- it starts a new paragraph);
* use \param instead of \arg to document parameters in order to be consistent
with the rest of the codebase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163902 91177308-0d34-0410-b5e6-96231b3b80d8
45d81bdde87a38c21facf2ec3b82b0589e9de7e9 14-Sep-2012 Jim Grosbach <grosbach@apple.com> MachO: Correctly mark symbol-difference variables as N_ABS.

.set a, b - c + CONSTANT
d = b - c + CONSTANT

Both 'a' and 'd' should be marked as absolute symbols (N_ABS).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163853 91177308-0d34-0410-b5e6-96231b3b80d8
a1deb4e763cb225a4feade12ccbe5719bfbb1518 13-Sep-2012 Craig Topper <craig.topper@gmail.com> Fix function name in comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163783 91177308-0d34-0410-b5e6-96231b3b80d8
67c8978617c3bce9d07210f93f6c64c715f77695 12-Sep-2012 Dmitri Gribenko <gribozavr@gmail.com> Fix a couple of Doxygen comment issues pointed out by -Wdocumentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163721 91177308-0d34-0410-b5e6-96231b3b80d8
2a3fcb382ef43374327b7b7672fe1e1e178041da 12-Sep-2012 Chad Rosier <mcrosier@apple.com> Add documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163658 91177308-0d34-0410-b5e6-96231b3b80d8
fde528fa2b206604bc80618af815bf5dab3fed8e 12-Sep-2012 Chad Rosier <mcrosier@apple.com> Add a few virtual functions to the abstract MCParsedAsmOperand class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163655 91177308-0d34-0410-b5e6-96231b3b80d8
59f45e4610e64b88bcee4cd46816ef64e815ff7e 11-Sep-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Add MCRI::getNumSubRegIndices() and start checking SubRegIndex ranges.

Apparently, NumSubRegIndices was completely unused before. Adjust it by
one to include the null subreg index, just like getNumRegs() includes
the null register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163628 91177308-0d34-0410-b5e6-96231b3b80d8
1c4ad5ef4fab105f0c8af7edd026e00502fb6279 11-Sep-2012 Stephen Hines <srhines@google.com> Merge branch 'upstream' into merge-2012_09_10


Change-Id: I91e94c3a7a76e19c688307c5a480a640a3bd2b7e
a9e37c5eaf79c3a32f2921536fb7e12514e86fb2 07-Sep-2012 Benjamin Kramer <benny.kra@googlemail.com> Fix alignment of .comm and .lcomm on mingw32.

For some reason .lcomm uses byte alignment and .comm log2 alignment so we can't
use the same setting for both. Fix this by reintroducing the LCOMM enum.
I verified this against mingw's gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163420 91177308-0d34-0410-b5e6-96231b3b80d8
39646d96e76aea5d20bffb386233a0dbb5932a21 07-Sep-2012 Benjamin Kramer <benny.kra@googlemail.com> MC: Overhaul handling of .lcomm

- Darwin lied about not supporting .lcomm and turned it into zerofill in the
asm parser. Push the zerofill-conversion down into macho-specific code.
- This makes the tri-state LCOMMType enum superfluous, there are no targets
without .lcomm.
- Do proper error reporting when trying to use .lcomm with alignment on a target
that doesn't support it.
- .comm and .lcomm alignment was parsed in bytes on COFF, should be power of 2.
- Fixes PR13755 (.lcomm crashes on ELF).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163395 91177308-0d34-0410-b5e6-96231b3b80d8
98eb98b0f2e6573f5aee67ce3e75624392d637b7 05-Sep-2012 Roman Divacky <rdivacky@freebsd.org> Constify subtarget info properly so that we dont cast away the const in
the SubtargetInfoKV tables. Found by gcc48 -Wcast-qual.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163251 91177308-0d34-0410-b5e6-96231b3b80d8
5d637d7e93c1f6058c16b41b8ac7dd36c61b4a5c 05-Sep-2012 Chad Rosier <mcrosier@apple.com> Fix function name per coding standard.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163187 91177308-0d34-0410-b5e6-96231b3b80d8
2cc97def7434345e399e4f5f3f2001d6d7a93c6f 03-Sep-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Asm operands can map to one or more MCOperands. Therefore, add
the NumMCOperands argument to the GetMCInstOperandNum() function that is set
to the number of MCOperands this asm operand mapped to.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163124 91177308-0d34-0410-b5e6-96231b3b80d8
038f3e31276f8cc86d91d0e4513e1a3ddb8509ba 03-Sep-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Add an interface to the GetMCInstOperandNum() function in the
MCTargetAsmParser class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163122 91177308-0d34-0410-b5e6-96231b3b80d8
c4d2560a2010456f4eea0007eb71829d5668e7dd 03-Sep-2012 Chad Rosier <mcrosier@apple.com> Removed unused argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163104 91177308-0d34-0410-b5e6-96231b3b80d8
3a86e1396230748f17a521915bc802939a787eac 03-Sep-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Expose the Kind and Opcode variables from the
MatchInstructionImpl() function.

These values are used by the ConvertToMCInst() function to index into the
ConversionTable. The values are also needed to call the GetMCInstOperandNum()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163101 91177308-0d34-0410-b5e6-96231b3b80d8
5d04a560a875eef5cc7ae2bfadaf7d46ea8a60c5 31-Aug-2012 Chad Rosier <mcrosier@apple.com> The ConvertToMCInst() function can't fail, so remove the now dead Match_ConversionFail enum.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163002 91177308-0d34-0410-b5e6-96231b3b80d8
15b7a98ece81ec275a560c77b814e0479a669bc6 30-Aug-2012 Owen Anderson <resistor@mac.com> Allow targets to specify a minimum supported NOP size when performing NOP padding. If the desired padding is smaller than the supported NOP size,
we will enlarge the padding to make it work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162870 91177308-0d34-0410-b5e6-96231b3b80d8
1f7210e808373fa92be3a2d4fa653a6f79d5088b 29-Aug-2012 Craig Topper <craig.topper@gmail.com> Make use of the LLVM_DELETED_FUNCTION macro.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162828 91177308-0d34-0410-b5e6-96231b3b80d8
9fb8b49380e7cf6ce88400ad65051e830563bc81 24-Aug-2012 Roman Divacky <rdivacky@freebsd.org> Lower constant pools and jump tables via TOC on PPC64/SVR4.

In collaboration with Adhemerval Zanella.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162562 91177308-0d34-0410-b5e6-96231b3b80d8
31675153bd2d7617db8cb6aeb58054934c7b9f73 24-Aug-2012 Stephen Hines <srhines@google.com> Merge branch 'upstream' into merge_2


Change-Id: I6702d340c733e9721499b5d85b13b96ad9c14eb5
a00b80b04c5edb08639c1c6b32e9231fd8b066f7 23-Aug-2012 Dmitri Gribenko <gribozavr@gmail.com> Fix a bunch of -Wdocumentation warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162446 91177308-0d34-0410-b5e6-96231b3b80d8
1df46c36b6142d50acfa21063a6e682e7f055e8e 23-Aug-2012 Lang Hames <lhames@gmail.com> Make the setInst method take its MCInst parameter by reference, a la Jim's
change in r162404.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162431 91177308-0d34-0410-b5e6-96231b3b80d8
6c6237f8dce6787e550a3e243e22a085a2859fe8 23-Aug-2012 Jim Grosbach <grosbach@apple.com> MCInstFragment constructor should take by-reference MCInst.

The MCInst is immediately passed to the copy-constructor for local
storage, so there's no need for the parameter itself to be by-value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162404 91177308-0d34-0410-b5e6-96231b3b80d8
101771ba4d9c2421f836069fcedf9ddc8a0c9dc7 22-Aug-2012 Jack Carter <jcarter@mips.com> For mips64 switch statements in subroutines could generate
within the codegen EK_GPRel64BlockAddress. This was not
supported for direct object output and resulted in an assertion.

This change adds support for EK_GPRel64BlockAddress for
direct object.

One fallout from this is to turn on rela relocations
for mips64 to match gas.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162334 91177308-0d34-0410-b5e6-96231b3b80d8
b4fdadef51ed254d9282356463c6b11ff8a102df 21-Aug-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Do not report a Parser error when matching inline assembly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162306 91177308-0d34-0410-b5e6-96231b3b80d8
64bfcbbc58ad485db157190496f0f39156b5a516 21-Aug-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Expose the ErrorInfo from the MatchInstructionImpl. In general,
this is the index of the operand that failed to match.

Note: This may cause a buildbot failure due to an API mismatch in clang. Should
recover with my next commit to clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162295 91177308-0d34-0410-b5e6-96231b3b80d8
f2c64ef519b38a4328809b27b4a3a8e0c26e9709 17-Aug-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Add an MCID::Select flag and TII hooks for optimizing selects.

Select instructions pick one of two virtual registers based on a
condition, like x86 cmov. On targets like ARM that support predication,
selects can sometimes be eliminated by predicating the instruction
defining one of the operands.

Teach PeepholeOptimizer to recognize select instructions, and ask the
target to optimize them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162059 91177308-0d34-0410-b5e6-96231b3b80d8
fc1a161d76f5cc0204bed3bce3e27cf36ac76d22 14-Aug-2012 Jim Grosbach <grosbach@apple.com> Switch the fixed-length disassembler to be table-driven.

Refactor the TableGen'erated fixed length disassemblmer to use a
table-driven state machine rather than a massive set of nested
switch() statements.

As a result, the ARM Disassembler (ARMDisassembler.cpp) builds much more
quickly and generates a smaller end result. For a Release+Asserts build on
a 16GB 3.4GHz i7 iMac w/ SSD:

Time to compile at -O2 (averaged w/ hot caches):
Previous: 35.5s
New: 8.9s

TEXT size:
Previous: 447,251
New: 297,661

Builds in 25% of the time previously required and generates code 66% of
the size.

Execution time of the disassembler is only slightly slower (7% disassembling
10 million ARM instructions, 19.6s vs 21.0s). The new implementation has
not yet been tuned, however, so the performance should almost certainly
be recoverable should it become a concern.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161888 91177308-0d34-0410-b5e6-96231b3b80d8
3246176838a47fa088b98772d4899063a9b7f731 10-Aug-2012 Chad Rosier <mcrosier@apple.com> [ms-inline asm] Extend the MC AsmParser API to match MCInsts (but not emit).
This new API will be used by clang to parse ms-style inline asms.

One goal of this project is to use this style of inline asm for targets other
then x86. Therefore, this API needs to be implemented for non-x86 targets at
some point in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161624 91177308-0d34-0410-b5e6-96231b3b80d8
2d39a0e52df9ce050bd4e2de3a2ecca8fd9a87c3 09-Aug-2012 Jim Grosbach <grosbach@apple.com> Move [SU]LEB128 encoding to a utility header.

These functions are very generic. There's no reason for them to
be tied to MCObjectWriter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161545 91177308-0d34-0410-b5e6-96231b3b80d8
d43b5c97cff06d7840b974ca84fa0639d2567968 08-Aug-2012 Andrew Trick <atrick@apple.com> Added MispredictPenalty to SchedMachineModel.

This replaces an existing subtarget hook on ARM and allows standard
CodeGen passes to potentially use the property.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161471 91177308-0d34-0410-b5e6-96231b3b80d8
ebd78710eb12794d9b8ca0307ae1f916e0ecbe80 07-Aug-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Fix typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161354 91177308-0d34-0410-b5e6-96231b3b80d8
7744acd1ab73b3eec6f1449f47083abe3fb1b527 03-Aug-2012 Shih-wei Liao <sliao@google.com> Merge with LLVM upstream r160668 (Jul 24th 2012)


Change-Id: Iddd658cf2eadc7165b2805b446d31af2c5c9917f
46c0dc7858da65707340ca62b258f8956def78e8 27-Jul-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Give MCRegisterInfo an implementation file.

Move some functions from MCRegisterInfo.h that don't need to be inline.

This shrinks llc by 8K.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160865 91177308-0d34-0410-b5e6-96231b3b80d8
0371cd8b1c0d2101295ca9381a0b437e1f2d8fa2 27-Jul-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Eliminate the large XXXSubRegTable constant arrays.

These tables were indexed by [register][subreg index] which made them,
very large and sparse.

Replace them with lists of sub-register indexes that match the existing
lists of sub-registers. MCRI::getSubReg() becomes a very short linear
search, like getSubRegIndex() already was.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160843 91177308-0d34-0410-b5e6-96231b3b80d8
303c909d5bb014fbeec395090eb467d724969195 25-Jul-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Differentially encode all MC register lists.

This simplifies MCRegisterInfo and shrinks the target descriptions a bit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160758 91177308-0d34-0410-b5e6-96231b3b80d8
b7dd9fc678ab4b4c57d333cd9940b0e0d7952ea6 21-Jul-2012 Akira Hatanaka <ahatanaka@mips.com> Add VK_Mips_HIGHER and VK_Mips_HIGHEST to MCSymbolRefExpr::VariantKind.

Test case will be added later when long branch patch is checked in.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160597 91177308-0d34-0410-b5e6-96231b3b80d8
2661b411ccc81b1fe19194d3f43b2630cbef3f28 07-Jul-2012 Andrew Trick <atrick@apple.com> I'm introducing a new machine model to simultaneously allow simple
subtarget CPU descriptions and support new features of

MachineModel has three categories of data:
1) Basic properties for coarse grained instruction cost model.
2) Scheduler Read/Write resources for simple per-opcode and operand cost model (TBD).
3) Instruction itineraties for detailed per-cycle reservation tables.

These will all live side-by-side. Any subtarget can use any
combination of them. Instruction itineraries will not change in the
near term. In the long run, I expect them to only be relevant for
in-order VLIW machines that have complex contraints and require a
precise scheduling/bundling model. Once itineraries are only actively
used by VLIW-ish targets, they could be replaced by something more
appropriate for those targets.

This tablegen backend rewrite sets things up for introducing
MachineModel type #2: per opcode/operand cost model.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159891 91177308-0d34-0410-b5e6-96231b3b80d8
a11a6287a504d1d7503e744d14314df1e696f506 07-Jul-2012 Andrew Trick <atrick@apple.com> Tweak spelling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159889 91177308-0d34-0410-b5e6-96231b3b80d8
94edc64ba23f71c31d5dee0b6942584a14cedcb5 06-Jul-2012 Owen Anderson <resistor@mac.com> Fix an overzealous assertion. It is legitimate for a target to have multiple fixups on a single instruction that target the same byte, so long as their bit-offsets are coordinates appropriately.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159785 91177308-0d34-0410-b5e6-96231b3b80d8
218ee74a011c0d350099c452810da0bd57a15047 02-Jul-2012 Andrew Trick <atrick@apple.com> Reapply "Make NumMicroOps a variable in the subtarget's instruction itinerary."

Reapplies r159406 with minor cleanup. The regressions appear to have been spurious.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159541 91177308-0d34-0410-b5e6-96231b3b80d8
3e4b3b9043b1ced24e07d8d1174feeee06c6912e 29-Jun-2012 Andrew Trick <atrick@apple.com> Revert "Make NumMicroOps a variable in the subtarget's instruction itinerary."

This reverts commit r159406. I noticed a performance regression so I'll back out for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159411 91177308-0d34-0410-b5e6-96231b3b80d8
7f8c74cfaebb4b58b283a1875d3205704ce5be07 29-Jun-2012 Andrew Trick <atrick@apple.com> misched: count micro-ops toward the issue limit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159407 91177308-0d34-0410-b5e6-96231b3b80d8
0d9513c74f3e4c019406273cce49e43508dc4dcf 29-Jun-2012 Andrew Trick <atrick@apple.com> Make NumMicroOps a variable in the subtarget's instruction itinerary.

The TargetInstrInfo::getNumMicroOps API does not change, but soon it
will be used by MachineScheduler. Now each subtarget can specify the
number of micro-ops per itinerary class. For ARM, this is currently
always dynamic (-1), because it is used for load/store multiple which
depends on the number of register operands.

Zero is now a valid number of micro-ops. This can be used for
nop pseudo-instructions or instructions that the hardware can squash
during dispatch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159406 91177308-0d34-0410-b5e6-96231b3b80d8
93ee286e8d949147f8df7f093c9bd8529a99102d 28-Jun-2012 Jack Carter <jcarter@mips.com> The ELF relocation record format is different for N64
which many Mips 64 ABIs use than for O64 which many
if not all other target ABIs use.

Most architectures have the following 64 bit relocation record format:

typedef struct
Elf64_Addr r_offset; /* Address of reference */
Elf64_Xword r_info; /* Symbol index and type of relocation */
} Elf64_Rel;

typedef struct
Elf64_Addr r_offset;
Elf64_Xword r_info;
Elf64_Sxword r_addend;
} Elf64_Rela;

Whereas N64 has the following format:

typedef struct
Elf64_Addr r_offset;/* Address of reference */
Elf64_Word r_sym; /* Symbol index */
Elf64_Byte r_ssym; /* Special symbol */
Elf64_Byte r_type3; /* Relocation type */
Elf64_Byte r_type2; /* Relocation type */
Elf64_Byte r_type; /* Relocation type */
} Elf64_Rel;

typedef struct
Elf64_Addr r_offset;/* Address of reference */
Elf64_Word r_sym; /* Symbol index */
Elf64_Byte r_ssym; /* Special symbol */
Elf64_Byte r_type3; /* Relocation type */
Elf64_Byte r_type2; /* Relocation type */
Elf64_Byte r_type; /* Relocation type */
Elf64_Sxword r_addend;
} Elf64_Rela;

The structure is the same size, but the r_info data element
is now 5 separate elements. Besides the content aspects,
endian byte reordering will be different for the area with
each element being endianized separately.

I treat this as generic and continue to pass r_type as
an integer masking and unmasking the byte sized N64
values for N64 mode. I've implemented this and it causes no
affect on other current targets.

This passes make check.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159299 91177308-0d34-0410-b5e6-96231b3b80d8
b460a3382961c5be9952a75d46228f624edbd39f 22-Jun-2012 Hal Finkel <hfinkel@anl.gov> Revert r158679 - use case is unclear (and it increases the memory footprint).

Original commit message:
Allow up to 64 functional units per processor itinerary.

This patch changes the type used to hold the FU bitset from unsigned to uint64_t.
This will be needed for some upcoming PowerPC itineraries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159027 91177308-0d34-0410-b5e6-96231b3b80d8
c90a1fcf9f44858b20e0f5f7e0b98049aec7a1e0 22-Jun-2012 Evan Cheng <evan.cheng@apple.com> EmitZerofill should take a 64-bit size or else it's chopping off large zero-filled global. rdar://11729134

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159023 91177308-0d34-0410-b5e6-96231b3b80d8
9cfc799171171e0cc26f64a60ba36bef8e889556 22-Jun-2012 Rafael Espindola <rafael.espindola@gmail.com> Remove another duplicated variable. We only need one to tell us if the linker
knows dwarf or not.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158993 91177308-0d34-0410-b5e6-96231b3b80d8
2241e51406f7bae369d6103cf3464e70f74c4af9 22-Jun-2012 Rafael Espindola <rafael.espindola@gmail.com> Fix a FIXME: DwarfRequiresRelocationForSectionOffset is the same as

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158992 91177308-0d34-0410-b5e6-96231b3b80d8
ffccd923101ae177c1a2c407618d8f03a312d69b 22-Jun-2012 Nick Lewycky <nicholas@mxc.ca> Emit relocations for DW_AT_location entries on systems which need it. This is
a recommit of r127757. Fixes PR9493. Patch by Paul Robinson!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158957 91177308-0d34-0410-b5e6-96231b3b80d8
e877c4f9c7b4e4142f33a29e6cd1a07262525a12 18-Jun-2012 Hal Finkel <hfinkel@anl.gov> Allow up to 64 functional units per processor itinerary.

This patch changes the type used to hold the FU bitset from unsigned to uint64_t.
This will be needed for some upcoming PowerPC itineraries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158679 91177308-0d34-0410-b5e6-96231b3b80d8
0076ad7eebb46c07288eec20e385dd8eaff736fb 08-Jun-2012 Andrew Trick <atrick@apple.com> Sched itinerary fix: Avoid static initializers.

This fixes an accidental dependence on static initialization order that I introduced yesterday.

Thank you Lang!!!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158215 91177308-0d34-0410-b5e6-96231b3b80d8
b7e0289fb320c8440ba5eed121a8b932dbd806a2 05-Jun-2012 Andrew Trick <atrick@apple.com> misched: API for minimum vs. expected latency.

Minimum latency determines per-cycle scheduling groups.
Expected latency determines critical path and cost.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158021 91177308-0d34-0410-b5e6-96231b3b80d8
fc992996f751e0941951b6d08d8f1e80ebec1385 05-Jun-2012 Andrew Trick <atrick@apple.com> misched: Added MultiIssueItineraries.

This allows a subtarget to explicitly specify the issue width and
other properties without providing pipeline stage details for every

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157979 91177308-0d34-0410-b5e6-96231b3b80d8
fd42ed676e37c29364f53f848320b7cb706111e0 04-Jun-2012 Roman Divacky <rdivacky@freebsd.org> Implement local-exec TLS on PowerPC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157935 91177308-0d34-0410-b5e6-96231b3b80d8
22de91aec556d44ee580c2e42f45c7675da98349 02-Jun-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Remove the old register list functions from MCRegisterInfo.

These functions exposed the layout of the underlying data tables as
null-terminated uint16_t arrays.

Use the new MCSubRegIterator, MCSuperRegIterator, and MCRegAliasIterator
classes instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157855 91177308-0d34-0410-b5e6-96231b3b80d8
396618b43a85e12d290a90b181c6af5d7c0c5f11 02-Jun-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Switch all register list clients to the new MC*Iterator interface.

No functional change intended.

Sorry for the churn. The iterator classes are supposed to help avoid
giant commits like this one in the future. The TableGen-produced
register lists are getting quite large, and it may be necessary to
change the table representation.

This makes it possible to do so without changing all clients (again).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157854 91177308-0d34-0410-b5e6-96231b3b80d8
f5d4e5158fcbec26d1c243daa725878ca1ae560b 31-May-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Emit register unit root tables.

Each register unit has one or two root registers. The full set of
registers containing a given register unit can be computed as the union
of the root registers and their super-registers.

Provide an MCRegUnitRootIterator class to enumerate the roots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157753 91177308-0d34-0410-b5e6-96231b3b80d8
cd00ef033cf944fc96a0d06ffcf49cd805fc4ee3 30-May-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Add MCRegisterInfo::RegListIterator.

Also add subclasses MCSubRegIterator, MCSuperRegIterator, and

These iterators provide an abstract interface to the MCRegisterInfo
register lists so the internal representation can be changed without
changing all clients.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157695 91177308-0d34-0410-b5e6-96231b3b80d8
209cdc2999208e9783349e970bd96fc37557fd97 30-May-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Make DiffListIterator public to unbreak the gcc buildbots.

Apparently, a friend can't derive from a private class according to gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157654 91177308-0d34-0410-b5e6-96231b3b80d8
f52baf72c116d9cf8680d25a8e751ce354c7d44b 30-May-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Emit register unit lists for each register.

Register units are already used internally in TableGen to compute
register pressure sets and overlapping registers. This patch makes them
available to the code generators.

The register unit lists are differentially encoded so they can be reused
for many related registers. This keeps the total size of the lists below
200 bytes for most targets. ARM has the largest table at 560 bytes.

Add an MCRegUnitIterator for traversing the register unit lists. It
provides an abstract interface so the representation can be changed in
the future without changing all clients.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157650 91177308-0d34-0410-b5e6-96231b3b80d8
d5ce3ffa67698b9d21f58011f370a210a214d301 25-May-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Compress MCRegisterInfo register name tables.

Store (debugging) register names as offsets into a string table instead
of as char pointers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157449 91177308-0d34-0410-b5e6-96231b3b80d8
3e96531186ba574b0c25a4be62d24b8b7d752c9f 18-May-2012 Jim Grosbach <grosbach@apple.com> Refactor data-in-code annotations.

Use a dedicated MachO load command to annotate data-in-code regions.
This is the same format the linker produces for final executable images,
allowing consistency of representation and use of introspection tools
for both object and executable files.

Data-in-code regions are annotated via ".data_region"/".end_data_region"
directive pairs, with an optional region type.

data_region_directive := ".data_region" { region_type }
region_type := "jt8" | "jt16" | "jt32" | "jta32"
end_data_region_directive := ".end_data_region"

The previous handling of ARM-style "$d.*" labels was broken and has
been removed. Specifically, it didn't handle ARM vs. Thumb mode when
marking the end of the section.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157062 91177308-0d34-0410-b5e6-96231b3b80d8
0ee07e013095e8c298fbcc5203e0bc9f334e15e1 15-May-2012 Jim Grosbach <grosbach@apple.com> TableGen'erate mapping physical registers to encoding values.

Many targets always use the same bitwise encoding value for physical
registers in all (or most) instructions. Add this mapping to the
.td files and TableGen'erate the information and expose an accessor
in MCRegisterInfo.

patch by Tom Stellard.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156829 91177308-0d34-0410-b5e6-96231b3b80d8
639aa87bee77fe2d83f0978ae1eea53e49def324 11-May-2012 Jim Grosbach <grosbach@apple.com> Tidy up. Trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156601 91177308-0d34-0410-b5e6-96231b3b80d8
e5f31ad55ef67231b6e415a4a7dc7f1eb7c0871c 05-May-2012 Jim Grosbach <grosbach@apple.com> Nuke a few dead remnants of the CBE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156241 91177308-0d34-0410-b5e6-96231b3b80d8
cf5a1461acaace0f3e7d11fbbcfbf635b8c8ea9d 24-Apr-2012 Shih-wei Liao <sliao@google.com> Merge with LLVM upstream r155090.


Change-Id: I7b89833849f6cbcfa958a33a971d0f7754c9cb2c
fb22ede033f792196643bad0ceafe473366ddf41 16-Apr-2012 Craig Topper <craig.topper@gmail.com> Make member variables of AsmToken private. Remove unnecessary forward declarations. Remove an unnecessary include.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154775 91177308-0d34-0410-b5e6-96231b3b80d8
bce0de462f9510e57598aeae918d1e1cced718ab 10-Apr-2012 David Chisnall <csdavec@swan.ac.uk> Use the correct section types on Solaris for unwind data on both x86 and x86-64.

Patch by Dmitri Shubin!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154391 91177308-0d34-0410-b5e6-96231b3b80d8
3420e7f360dab7712a9ec4f51d233c7e73642ec7 07-Apr-2012 Sean Hunt <scshunt@csclub.uwaterloo.ca> Output UTF-8-encoded characters as identifier characters into assembly
by default.

This is a behaviour configurable in the MCAsmInfo. I've decided to turn
it on by default in (possibly optimistic) hopes that most assemblers are
reasonably sane. If this proves a problem, switching to default seems

I'm not sure if this is the opportune place to test, but it seemed good
to make sure it was tested somewhere.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154235 91177308-0d34-0410-b5e6-96231b3b80d8
32d1774d45532508c9c76fa8e4dad9454ec50656 04-Apr-2012 Benjamin Kramer <benny.kra@googlemail.com> Implement DwarfLLVMRegPair::operator< without violating asymmetry.

MSVC8 verifies this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154002 91177308-0d34-0410-b5e6-96231b3b80d8
c97ef618d2d849a272a353c2b4343fc5902cd921 02-Apr-2012 Benjamin Kramer <benny.kra@googlemail.com> Move getOpcodeName from the various target InstPrinters into the superclass MCInstPrinter.

All implementations used the same code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153866 91177308-0d34-0410-b5e6-96231b3b80d8
17463b3ef1a3d39b10619254f12e806c8c43f9e7 02-Apr-2012 Craig Topper <craig.topper@gmail.com> Make MCInstrInfo available to the MCInstPrinter. This will be used to remove getInstructionName and the static data it contains since the same tables are already in MCInstrInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153860 91177308-0d34-0410-b5e6-96231b3b80d8
243018ffcf764e4dde2968f909f4a2e578aafe86 01-Apr-2012 Benjamin Kramer <benny.kra@googlemail.com> Emit the LLVM<->DWARF register mapping as a sorted table and use binary search to do the lookup.

This also avoids emitting the information twice, which led to code bloat. On i386-linux-Release+Asserts
with all targets built this change shaves a whopping 1.3 MB off clang. The number is probably exaggerated
by recent inliner changes but the methods were already enormous with the old inline cost computation.

The DWARF reg -> LLVM reg mapping doesn't seem to have holes in it, so it could be a simple lookup table.
I didn't implement that optimization yet to avoid potentially changing functionality.

There is still some duplication both in tablegen and the generated code that should be cleaned up eventually.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153837 91177308-0d34-0410-b5e6-96231b3b80d8
0d4e2ea00eac5d51a74a54dd504a8f34580041d7 30-Mar-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Reapply 153764 and 153761 with a fix.

Use an explicit comparator instead of the default.

The sets are sorted, but not using the default comparator. Hopefully,
this will unbreak the Linux builders.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153772 91177308-0d34-0410-b5e6-96231b3b80d8
77ff8bbc2abf13b269bf1e66526e813955b078a7 30-Mar-2012 Rafael Espindola <rafael.espindola@gmail.com> Revert 153764 and 153761. They broke a --enable-optimized --enable-assertions
--enable-expensive-checks build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153771 91177308-0d34-0410-b5e6-96231b3b80d8
8f36b0b139b5ba683eedf022f1b0c1279b680cf7 30-Mar-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Compress register lists by sharing suffixes.

TableGen emits lists of sub-registers, super-registers, and overlaps. Put
them all in a single table and use a SequenceToOffsetTable to share

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153761 91177308-0d34-0410-b5e6-96231b3b80d8
f1d0f7781e766df878bec4e7977fa3204374f394 26-Mar-2012 Craig Topper <craig.topper@gmail.com> Prune some includes and forward declarations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153429 91177308-0d34-0410-b5e6-96231b3b80d8
c59a7995d22e2889706810c90a20a51ecfec278b 24-Mar-2012 Shih-wei Liao <sliao@google.com> Merge branch 'upstream' into sliao_d
00ca888cccd130dd3ebcfc02cf2b9187b54d116e 24-Mar-2012 Akira Hatanaka <ahatanaka@mips.com> Add a hook in MCELFObjectTargetWriter to allow targets to sort relocation
entries in the relocation table before they are written out to the file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153345 91177308-0d34-0410-b5e6-96231b3b80d8
014bc6e3ceac59ea7d1d435cfb88642157c5270c 19-Mar-2012 TDYa127 <tdy@google.com> Restore to use private and LLVM coding style

Change-Id: I5650b0de503f5b44e7dc38bcb204f65a9b8a4ddc
8b8825ac164c2e7cce8b6987cea78cd8b301360d 17-Mar-2012 Shih-wei Liao <sliao@google.com> Integrated linker.

Change-Id: Iec22c1b717750cb428c61c5319cdd77378e4af1e
bcfa982c4866fee5f86dca8c4bfc7425a9629f0d 15-Mar-2012 Jakob Stoklund Olesen <stoklund@2pi.dk> Revert r152202: "Use uint16_t to store InstrNameIndices in MCInstrInfo."

We cannot limit the concatenated instruction names to 64K. ARM is
already at 32K, and it is easy to imagine a target with more

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152817 91177308-0d34-0410-b5e6-96231b3b80d8
39bdc5526f9bb4985c5ea7711e603bb44707ed42 11-Mar-2012 Craig Topper <craig.topper@gmail.com> Shrink and reorder some fields in MCOperandInfo to fit it in 8 bytes to reduce size of static tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152524 91177308-0d34-0410-b5e6-96231b3b80d8
fac259814923d091942b230e7bd002a8d1130bc3 08-Mar-2012 Craig Topper <craig.topper@gmail.com> Use uint16_t to store instruction implicit uses and defs. Reduces static data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152301 91177308-0d34-0410-b5e6-96231b3b80d8
88d2fa438a5b9feb7da77e4beeaa00944ae4168e 08-Mar-2012 Craig Topper <craig.topper@gmail.com> Re-commit r152202 hopefully fixing the MSVC linker error.

Original commit message:
Use uint16_t to store InstrNameIndices in MCInstrInfo. Add asserts to protect all 16-bit string table offsets. Also make sure the string to offset table string is not larger than 65536 characters since larger string literals aren't portable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152296 91177308-0d34-0410-b5e6-96231b3b80d8
3c777947f4fdd94f061f8ac4a118a8db03da88a8 07-Mar-2012 Chad Rosier <mcrosier@apple.com> Revert r152202 as it's causing internal buildbot failures.

Original commit message:
Use uint16_t to store InstrNameIndices in MCInstrInfo. Add asserts to protect
all 16-bit string table offsets. Also make sure the string to offset table
string is not larger than 65536 characters since larger string literals aren't

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152233 91177308-0d34-0410-b5e6-96231b3b80d8
d3c9d9447ed7b5b8d3800b871ff162ae2df9fd5b 07-Mar-2012 Craig Topper <craig.topper@gmail.com> Use uint16_t to store InstrNameIndices in MCInstrInfo. Add asserts to protect all 16-bit string table offsets. Also make sure the string to offset table string is not larger than 65536 characters since larger string literals aren't portable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152202 91177308-0d34-0410-b5e6-96231b3b80d8
aff18aee5632d8cb5ed7e299df4cb451bf12c834 06-Mar-2012 Craig Topper <craig.topper@gmail.com> Increase number of allowed registers in register classes to 64k instead of 256. Widen register class ID to 16-bits. Widen register size and alignment to be up to 64k bytes instead of 256 bytes. This partially reverts r152019 to be less restrictive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152100 91177308-0d34-0410-b5e6-96231b3b80d8
696f5ab12ef4beea368c5343ed1db443e9a7fead 06-Mar-2012 Craig Topper <craig.topper@gmail.com> Revert r152016 and allow overlap, sub, super register tables to be more than 64k entries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152099 91177308-0d34-0410-b5e6-96231b3b80d8
28f08c93e75d291695ea89b9004145103292e85b 05-Mar-2012 Jim Grosbach <grosbach@apple.com> ARM refactor away a bunch of VLD/VST pseudo instructions.

With the new composite physical registers to represent arbitrary pairs
of DPR registers, we don't need the pseudo-registers anymore. Get rid of
a bunch of them that use DPR register pairs and just use the real
instructions directly instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152045 91177308-0d34-0410-b5e6-96231b3b80d8
33ca87affb81b60c4d50214eb7458bd26d397d53 05-Mar-2012 Jim Grosbach <grosbach@apple.com> MCRegisterInfo-ize getMatchingSuperReg.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152044 91177308-0d34-0410-b5e6-96231b3b80d8
c6449b636f4984be88f128d0375c056ad05e7e8f 05-Mar-2012 Jim Grosbach <grosbach@apple.com> Make MCRegisterInfo available to the the MCInstPrinter.

Used to allow context sensitive printing of super-register or sub-register

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152043 91177308-0d34-0410-b5e6-96231b3b80d8
52b89dd303424582d054e18417099f3a7e343b41 05-Mar-2012 Craig Topper <craig.topper@gmail.com> Shrink and reorder fields in MCRegisterClass to reduce size of static data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152019 91177308-0d34-0410-b5e6-96231b3b80d8
9ebfbf8b9fd5f982e0db9293808bd32168615ba9 05-Mar-2012 Craig Topper <craig.topper@gmail.com> Convert more GenRegisterInfo tables from unsigned to uint16_t to reduce static data size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152016 91177308-0d34-0410-b5e6-96231b3b80d8
e4fd907e72a599eddfa7a81eac4366b5b82523e3 04-Mar-2012 Craig Topper <craig.topper@gmail.com> Use uint16_t to store register overlaps to reduce static data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152001 91177308-0d34-0410-b5e6-96231b3b80d8
b6632ba380cf624e60fe16b03d6e21b05dd07724 04-Mar-2012 Craig Topper <craig.topper@gmail.com> Use uint16_t instead of unsigned to store registers in reg classes. Reduces static data size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151998 91177308-0d34-0410-b5e6-96231b3b80d8
ed4cf997abe9db574728aa6c1b06a9887848e7f0 02-Mar-2012 Jim Grosbach <grosbach@apple.com> Tidy up. Trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151926 91177308-0d34-0410-b5e6-96231b3b80d8
b83e2bbfbc107a71632bd42f2be8186554b16e1f 02-Mar-2012 Eric Christopher <echristo@apple.com> Grammar-o in function name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151875 91177308-0d34-0410-b5e6-96231b3b80d8
4b1212b4bfac98c688d484bf22ae158875f06ad5 01-Mar-2012 Benjamin Kramer <benny.kra@googlemail.com> Move getSubRegIndex out of generated code into MCRegisterInfo, devirtualize it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151821 91177308-0d34-0410-b5e6-96231b3b80d8
b3acdcc00c9dfb01663780e858e586cc5f04423f 01-Mar-2012 Jim Grosbach <grosbach@apple.com> Move TargetRegisterInfo::getSubReg() to MCRegisterInfo.

Allows us to de-virtualize the function and provides access to it in
the instruction printer, which is useful for handling composite
physical registers (e.g., ARM register lists).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151815 91177308-0d34-0410-b5e6-96231b3b80d8
adef06a71458ded0716935a61b3d43d164d4df12 29-Feb-2012 Derek Schuff <dschuff@google.com> Make MemoryObject accessor members const again

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151687 91177308-0d34-0410-b5e6-96231b3b80d8
489d67927172941bf59b9f4829ab8910814fea24 28-Feb-2012 Rafael Espindola <rafael.espindola@gmail.com> On ELF, create relocations to the abbreviation and line sections when producing
debug info for assembly files. We were already doing the right thing when
producing debug info for C/C++.

ELF linkers don't know dwarf, so they depend on these relocations to produce
valid dwarf output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151655 91177308-0d34-0410-b5e6-96231b3b80d8
7b25ecf6adbf3c4709c48033acfeb6ebbb4452ab 27-Feb-2012 Jim Grosbach <grosbach@apple.com> ARM BL/BLX instruction fixups should use relocations.

We on the linker to resolve calls to the appropriate BL/BLX instruction
to make interworking function correctly. It uses the symbol in the
relocation to do that, so we need to be careful about being too clever.

To enable this for ARM mode, split the BL/BLX fixup kind off from the
unconditional-branch fixups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151571 91177308-0d34-0410-b5e6-96231b3b80d8
9d91c5d31c6758124559c0916d852295f47a2bec 23-Feb-2012 Craig Topper <craig.topper@gmail.com> Remove 'if' from getSuperRegisters, getSubRegisters, and getOverlaps that were added in r151038.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151246 91177308-0d34-0410-b5e6-96231b3b80d8
7d9b20792bfc528647f8bd7644934b228cc6c60b 21-Feb-2012 Craig Topper <craig.topper@gmail.com> Reorder some members in MCRegisterClass to remove padding on 64-bit builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151043 91177308-0d34-0410-b5e6-96231b3b80d8
f3e3783012dc7875ed37be8aaaefd96f98454781 21-Feb-2012 Craig Topper <craig.topper@gmail.com> In generated RegisterInfo files, replace a pointer to the end of an array with just the size of the array to avoid relocations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151041 91177308-0d34-0410-b5e6-96231b3b80d8
4472838fc8a7f2f08aec27c284b64bc28bef0468 21-Feb-2012 Craig Topper <craig.topper@gmail.com> Merge some tables in generated RegisterInfo file. Store indices into larger table instead of pointers to reduce relocations and shrink table size on 64-bit builds. Shaves ~24K off X86MCTargetDesc.o

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151038 91177308-0d34-0410-b5e6-96231b3b80d8
4cbcee16187ab07a70280fc10af327767325b848 17-Feb-2012 David Chisnall <csdavec@swan.ac.uk> Generate the correct EH frame section types on Solaris, this time without breaking other platforms...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150819 91177308-0d34-0410-b5e6-96231b3b80d8
8bb51ef6d2a396715f1dbc6edc1599892779e4d6 17-Feb-2012 David Chisnall <csdavec@swan.ac.uk> Revert r150814. It turns out that there is a good reason for this after all...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150818 91177308-0d34-0410-b5e6-96231b3b80d8
406262a69ff0ff00558781e8e87a84336f425bd5 17-Feb-2012 Richard Osborne <richard@xmos.com> Fix typo in comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150815 91177308-0d34-0410-b5e6-96231b3b80d8
637b25a6a04908562af422c0cafbcf9db94bcc81 17-Feb-2012 David Chisnall <csdavec@swan.ac.uk> Don't lazily allocate eh_frame. We're not lazily allocating things like the LSDA, which are only used when the eh frame is used, so this lazy allocation doesn't really make sense.

Fix the type of eh_frame on Solaris so that Sun ld doesn't fail to combine them (thus making it impossible for the unwind library to find them and breaking exceptions).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150814 91177308-0d34-0410-b5e6-96231b3b80d8
d4a19b6a72d19a6f90b676aac37118664b7b7a84 11-Feb-2012 Anton Korobeynikov <asl@math.spbu.ru> Add support for implicit TLS model used with MS VC runtime.
Patch by Kai Nacke!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150307 91177308-0d34-0410-b5e6-96231b3b80d8
88b6fc06db667bd26d6ef661597affaa6abfdd0d 11-Feb-2012 Benjamin Kramer <benny.kra@googlemail.com> Make the EDis tables const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150304 91177308-0d34-0410-b5e6-96231b3b80d8
c667ba69ac342563c0886e20509e68705d78a0a5 10-Feb-2012 Benjamin Kramer <benny.kra@googlemail.com> Put instruction names into an indexed string table on the side, removing a pointer from MCInstrDesc.

Make them accessible through MCInstrInfo. They are only used for debugging purposes so this doesn't
have an impact on performance. X86MCTargetDesc.o goes from 630K to 461K on x86_64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150245 91177308-0d34-0410-b5e6-96231b3b80d8
133f9d989485376ce8ad0d6c61ba12e913fa6366 09-Feb-2012 Benjamin Kramer <benny.kra@googlemail.com> Move the Name field in MCInstrDesc to the end, saving 8 bytes of padding per entry on x86_64.

No change on i386.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150170 91177308-0d34-0410-b5e6-96231b3b80d8
90a468c424f7d0a85b3dc783634106d9a46d6688 08-Feb-2012 Benjamin Kramer <benny.kra@googlemail.com> Value initialize MCRegisterClasses. Not sure how could miss this during the MCTargetDesc refactor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150076 91177308-0d34-0410-b5e6-96231b3b80d8
2ea93875b2f2900b9d244dfd7649c9ed02a34cd7 06-Feb-2012 Derek Schuff <dschuff@google.com> Enable streaming of bitcode

This CL delays reading of function bodies from initial parse until
materialization, allowing overlap of compilation with bitcode download.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149918 91177308-0d34-0410-b5e6-96231b3b80d8
50bee42b54cd9aec5f49566307df2b0cf23afcf6 05-Feb-2012 Craig Topper <craig.topper@gmail.com> Convert assert(0) to llvm_unreachable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149849 91177308-0d34-0410-b5e6-96231b3b80d8
6c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760 03-Feb-2012 Akira Hatanaka <ahatanaka@mips.com> Add a new MachineJumpTableInfo entry type, EK_GPRel64BlockAddress, which is
needed to emit a 64-bit gp-relative relocation entry. Make changes necessary
for emitting jump tables which have entries with directive .gpdword. This patch
does not implement the parts needed for direct object emission or JIT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149668 91177308-0d34-0410-b5e6-96231b3b80d8
0db58bfecea020ffcdfa1fc6458995371e1c3c50 31-Jan-2012 Devang Patel <dpatel@apple.com> Add assembler dialect attribute in asm parser which lets target specific asm parser change dialect on the fly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149396 91177308-0d34-0410-b5e6-96231b3b80d8
ebd4c05c3cbd61215366d4d16f1c1a2e57e7156d 27-Jan-2012 Jim Grosbach <grosbach@apple.com> Better diagnostic for malformed .org assembly directive.

Provide source line number information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149101 91177308-0d34-0410-b5e6-96231b3b80d8
82f4ce5081fc9cfbf34bbe61eb0412e7ca4dc3df 27-Jan-2012 Jim Grosbach <grosbach@apple.com> Add simple support for keeping MCFixup source information.

Can be used to issue more user friendly diagnostics for faulty
relocation constructs and such.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149092 91177308-0d34-0410-b5e6-96231b3b80d8
3662e5ce709814f6b7cb3871be71ebc5e1ada16f 27-Jan-2012 Jim Grosbach <grosbach@apple.com> Add SourceMgr to MCContext for backend diagnostics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149090 91177308-0d34-0410-b5e6-96231b3b80d8
34982576a43887e7f062ed0a3571af2cbab003f3 26-Jan-2012 James Molloy <james.molloy@arm.com> Add support for the R_ARM_TARGET1 relocation, which should be given to relocations applied to all C++ constructors and destructors.

This enables the linker to match concrete relocation types (absolute or relative) with whatever library or C++ support code is being linked against.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149057 91177308-0d34-0410-b5e6-96231b3b80d8
4a99f59aef358fb93eac180e49f6dcef03822046 25-Jan-2012 Anton Korobeynikov <asl@math.spbu.ru> Properly emit ctors / dtors with priorities into desired sections
and let linker handle the rest.

This finally fixes PR5329

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148990 91177308-0d34-0410-b5e6-96231b3b80d8
3eb4be0ace6263f35a2f3aae9e964a752ebe55af 24-Jan-2012 Chandler Carruth <chandlerc@gmail.com> Revert r148686 (and r148694, a fix to it) due to a serious layering
violation -- MC cannot depend on CodeGen.

Specifically, the MCTargetDesc component of each target is actually
a subcomponent of the MC library. As such, it cannot depend on the
target-independent code generator, because MC itself cannot depend on
the target-independent code generator. This change moved a flag from the
ARM MCTargetDesc file ARMMCAsmInfo.cpp to the CodeGen layer in
ARMException.cpp, leaving behind an 'extern' to refer back to it. That
layering order isn't viable givin the constraints outlined above.
Commandline flags are designed to be static specifically to avoid these
types of bugs.

Fixing this is likely going to require some non-trivial refactoring.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148759 91177308-0d34-0410-b5e6-96231b3b80d8
16d7d437e03ce87fdaef7971919302920d54a966 23-Jan-2012 Rafael Espindola <rafael.espindola@gmail.com> Add support for .cfi_signal_frame. Fixes pr11762.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148733 91177308-0d34-0410-b5e6-96231b3b80d8
7908480e4caf2f7ecb0b62c900039d49e7d51ebb 23-Jan-2012 Evgeniy Stepanov <eugeni.stepanov@gmail.com> An option to selectively enable parts of ARM EHABI support.

This change adds an new value to the --arm-enable-ehabi option that
disables emitting unwinding descriptors. This mode gives a working
backtrace() without the (currently broken) exception support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148686 91177308-0d34-0410-b5e6-96231b3b80d8
7b672fe03b6f1734ac545e3aceb6d90bed3f0406 19-Jan-2012 Owen Anderson <resistor@mac.com> Add a new form of MCOperand, for representing sub-instructions. This is intended for supporting bundles through the MC layer, rather than lowering them pre-MC as we currently do for Thumb2 IT blocks. Since these sub-instruction operands hold pointers to the sub-instructions, it is the responsibility of the target's AsmPrinter to provide storage for them for the duration of the EmitInstruction() call.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148492 91177308-0d34-0410-b5e6-96231b3b80d8
ec3433852dd11e8ff60c9610b4c84468e5935f2b 18-Jan-2012 Jim Grosbach <grosbach@apple.com> Tidy up. MCAsmBackend naming conventions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148400 91177308-0d34-0410-b5e6-96231b3b80d8
9b5b125c34b47e0e7eef2548acee8bf1448c4b71 18-Jan-2012 Jim Grosbach <grosbach@apple.com> Move some ARM specific MCAssmebler bits into the ARMAsmBackend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148364 91177308-0d34-0410-b5e6-96231b3b80d8
a005c3140d8c16fd68b7e3a3dffb3153609f7527 10-Jan-2012 Devang Patel <dpatel@apple.com> Let asm parser query asm syntax dialect.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147880 91177308-0d34-0410-b5e6-96231b3b80d8
11c2defa9157bd589cb322218c718c4492ed5746 10-Jan-2012 Kevin Enderby <enderby@apple.com> This is the matching change for the data structure name changes for the
functional change in r147860 to use DW_TAG_label's instead TAG_subprogram's.
This only changes names and updates comments. No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147877 91177308-0d34-0410-b5e6-96231b3b80d8
9cce24a257108ec50f65652d233b9ffadc691682 10-Jan-2012 Rafael Espindola <rafael.espindola@gmail.com> Remove the logging streamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147820 91177308-0d34-0410-b5e6-96231b3b80d8
1fe9737eb49ecb80fbb547f0e16e10a726cd53cf 09-Jan-2012 Rafael Espindola <rafael.espindola@gmail.com> Don't print an unused label before .cfi_endproc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147763 91177308-0d34-0410-b5e6-96231b3b80d8
547be2699c547b79a7735858a64921d8ccf180f7 07-Jan-2012 Rafael Espindola <rafael.espindola@gmail.com> Don't print a label before .cfi_startproc when we don't need to. This makes
the produce assembly when using CFI just a bit more readable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147743 91177308-0d34-0410-b5e6-96231b3b80d8
99b4237c1647156f0e1d3d7e03efdab23ed79778 07-Jan-2012 Rafael Espindola <rafael.espindola@gmail.com> Split Finish into Finish and FinishImpl to have a common place to do end of
file error checking. Use that to error on an unfinished cfi_startproc.

The error is not nice, but is already better than a segmentation fault.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147717 91177308-0d34-0410-b5e6-96231b3b80d8
ed23bdb65fe86cdb7a38c8c1998ec965e6973966 29-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Implement cfi_restore. Patch by Brian Anderson!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147356 91177308-0d34-0410-b5e6-96231b3b80d8
c25680f728f89dd43939b00049ee524fbf59b7be 29-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Rename Remember and Restore to RememberState and RestoreState for consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147354 91177308-0d34-0410-b5e6-96231b3b80d8
6f0b181bc70318f8d5d4b9bdead7fc748677fe2a 29-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Implement .cfi_escape. Patch by Brian Anderson!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147352 91177308-0d34-0410-b5e6-96231b3b80d8
ce618af3e880ae0ec0ddd81aca8ed5bbd4096ae4 24-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Section relative fixups are a coff concept, not a x86 one. Replace the
x86 specific reloc_coff_secrel32 with a generic FK_SecRel_4.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147252 91177308-0d34-0410-b5e6-96231b3b80d8
df09270ae897e7fa64a7c162de163c32ee181a03 24-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Move x86 specific bits of the COFF writer to lib/Target/X86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147231 91177308-0d34-0410-b5e6-96231b3b80d8
84070ffbe6905f31cf369ad3f6742dfa5188332c 24-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Define trivial destructor inline.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147230 91177308-0d34-0410-b5e6-96231b3b80d8
ceb09f38845a26f0f806946a611b42c6932d6504 24-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Make GetRelocType pure virtual.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147229 91177308-0d34-0410-b5e6-96231b3b80d8
f3a86fb03d196994dc7923351f15d8ed9343013e 22-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Move PPC bits to lib/Target/PowerPC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147124 91177308-0d34-0410-b5e6-96231b3b80d8
bc24985c5ff01fc25336896c388bd8e4e02ffd95 22-Dec-2011 Akira Hatanaka <ahatanaka@mips.com> Local dynamic TLS model for direct object output. Create the correct TLS MIPS
ELF relocations.

Patch by Jack Carter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147118 91177308-0d34-0410-b5e6-96231b3b80d8
69bbda03918a18bd4477bb254d51346ee3033567 22-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Move the ARM specific parts of the ELF writer to Target/ARM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147115 91177308-0d34-0410-b5e6-96231b3b80d8
edae8e1e4d5bd9b59f18ecef04a248be95d8ca46 21-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Move the X86 specific bits of the ELF writer to the Target/X86 directory.

Other targets will follow shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147060 91177308-0d34-0410-b5e6-96231b3b80d8
dc9a8a378daf432d8dcfc178507afe149706f9a6 21-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Reduce the exposure of Triple::OSType in the ELF object writer. This will
avoid including ADT/Triple.h in many places when the target specific bits are

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147059 91177308-0d34-0410-b5e6-96231b3b80d8
d4304031cb465ca85e2bebb352b7cde5a92a1c39 21-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Add const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147054 91177308-0d34-0410-b5e6-96231b3b80d8
2d24e2a396a1d211baaeedf32148a3b657240170 20-Dec-2011 David Blaikie <dblaikie@gmail.com> Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146960 91177308-0d34-0410-b5e6-96231b3b80d8
8f7d12ccfd8feb258bdf4e582592bc00beacc7c6 17-Dec-2011 Rafael Espindola <rafael.espindola@gmail.com> Add back the MC bits of 126425. Original patch by Nathan Jeffords. I added the
asm parsing and testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146801 91177308-0d34-0410-b5e6-96231b3b80d8
3faac0a78c7a70d3dcd2af102a132bb9da2d639c 14-Dec-2011 Akira Hatanaka <ahatanaka@mips.com> Add support for local dynamic TLS model in LowerGlobalTLSAddress. Direct object
emission is not supported yet, but a patch that adds the support should follow

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146572 91177308-0d34-0410-b5e6-96231b3b80d8
94c2e85bea1ab1b837a4c055ccc83d5cd32dd027 09-Dec-2011 Kevin Enderby <enderby@apple.com> The second part of support for generating dwarf for assembly source files. This
generates the dwarf Compile Unit DIE and a dwarf subprogram DIE for each
non-temporary label.

The next part will be to get the clang driver to enable this when assembling
a .s file. rdar://9275556

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146262 91177308-0d34-0410-b5e6-96231b3b80d8
5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd 07-Dec-2011 Evan Cheng <evan.cheng@apple.com> Add bundle aware API for querying instruction properties and switch the code
generator to it. For non-bundle instructions, these behave exactly the same
as the MC layer API.

For properties like mayLoad / mayStore, look into the bundle and if any of the
bundled instructions has the property it would return true.
For properties like isPredicable, only return true if *all* of the bundled
instructions have the property.
For properties like canFoldAsLoad, isCompare, conservatively return false for

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146026 91177308-0d34-0410-b5e6-96231b3b80d8
e3d3572e282733bd7aa5ac14115ed0804174e426 07-Dec-2011 Bruno Cardoso Lopes <bruno.cardoso@gmail.com> Add a few moreLocal/Global R_MIPS_GOT related fixups and
make the addend fixup code a bit more generic

Patch by Jack Carter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145998 91177308-0d34-0410-b5e6-96231b3b80d8
7c2a4a30e0e16762c75adacebd05ec9fcbccf16b 06-Dec-2011 Evan Cheng <evan.cheng@apple.com> First chunk of MachineInstr bundle support.
1. Added opcode BUNDLE
2. Taught MachineInstr class to deal with bundled MIs
3. Changed MachineBasicBlock iterator to skip over bundled MIs; added an iterator to walk all the MIs
4. Taught MachineBasicBlock methods about bundled MIs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145975 91177308-0d34-0410-b5e6-96231b3b80d8
370b78d795154899a22ca2b4674e890661ff1d59 06-Dec-2011 Jim Grosbach <grosbach@apple.com> Move target-specific logic out of generic MCAssembler.

Whether a fixup needs relaxation for the associated instruction is a
target-specific function, as the FIXME indicated. Create a hook for that
and use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145881 91177308-0d34-0410-b5e6-96231b3b80d8
91f2cce231debf43384fe4ee39c11ba8460503eb 06-Dec-2011 Jim Grosbach <grosbach@apple.com> Tidy up. Hard tabs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145877 91177308-0d34-0410-b5e6-96231b3b80d8
fdedd486243724139b1403a939f46b7de1138d93 06-Dec-2011 Jim Grosbach <grosbach@apple.com> Tidy up. 80 columns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145875 91177308-0d34-0410-b5e6-96231b3b80d8
f77d5b14af6b92403b93f7ed249f9023e99028cc 06-Dec-2011 Jim Grosbach <grosbach@apple.com> Switch MCAssembler to method names starting w/ lower-case.

per http://llvm.org/docs/CodingStandards.html#ll_naming

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145873 91177308-0d34-0410-b5e6-96231b3b80d8
0cb2a45cceaefb48ec7efb902c453aaae4e24cb2 04-Dec-2011 Anton Korobeynikov <asl@math.spbu.ru> Emit the ctors in the proper order on ARM/EABI.
Maybe some targets should use this as well.

Patch by Evgeniy Stepanov!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145781 91177308-0d34-0410-b5e6-96231b3b80d8
116bc795da4b10773235a89cc251d31651b3851d 29-Nov-2011 Michael J. Spencer <bigcheesegs@gmail.com> MC/X86/COFF: Allow quotes in names when targeting MS/Windows,
as MC is the only assembler we support.

This splits MS/Windows and GNU/Windows ASM infos into two seperate classes.
While there is currently only one difference, full MS C++ ABI support will
require many more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145409 91177308-0d34-0410-b5e6-96231b3b80d8
84bfc2f090639f933df06cc675c4385511516bef 23-Nov-2011 Akira Hatanaka <ahatanaka@mips.com> This patch addresses gp relative fixups/relocations for jump tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145112 91177308-0d34-0410-b5e6-96231b3b80d8
b95fc31aa2e5a0a0b9ee1909d1cb949577c5aa16 16-Nov-2011 Evan Cheng <evan.cheng@apple.com> Sink codegen optimization level into MCCodeGenInfo along side relocation model
and code model. This eliminates the need to pass OptLevel flag all over the
place and makes it possible for any codegen pass to use this information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144788 91177308-0d34-0410-b5e6-96231b3b80d8
066b5d8403483bf3a8bb033b690da318fbc68e79 14-Nov-2011 Benjamin Kramer <benny.kra@googlemail.com> Make headers standalone.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144537 91177308-0d34-0410-b5e6-96231b3b80d8
dfa30e1ab243990eda4732a6dffb91e965e7a755 09-Nov-2011 Eric Christopher <echristo@apple.com> Remove the pubnames section, no one consumes it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144169 91177308-0d34-0410-b5e6-96231b3b80d8
09ac3d841367d5d56328eade506c951e0dc3a72d 07-Nov-2011 Eric Christopher <echristo@apple.com> Add the support code to enable the dwarf accelerator tables. Upcoming patches
to fix the types section (all types, not just global types), and testcases.

The code to do the final emission is disabled by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143923 91177308-0d34-0410-b5e6-96231b3b80d8
c25c90897781f116d5dbabab170bafcf65900fa7 05-Nov-2011 Benjamin Kramer <benny.kra@googlemail.com> Add an option to pad an uleb128 to MCObjectWriter and remove the uleb128 encoding from the DWARF asm printer.

As a side effect we now print dwarf ulebs with .ascii directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143809 91177308-0d34-0410-b5e6-96231b3b80d8
613b7576896fbd03fe495f4ee27b404f81386774 01-Nov-2011 Kevin Enderby <enderby@apple.com> First part of support for generating dwarf for assembly source files with the
-g flag. In this part we generate the .file for the source being assembled and
the .loc's for the assembled instructions.

The next part will be to generate the dwarf Compile Unit DIE and a dwarf
subprogram DIE for each non-temporary label.

Once the next part is done test cases will be added. rdar://9275556

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143509 91177308-0d34-0410-b5e6-96231b3b80d8
492be647722fc2f372e650ce4a5d9e10171dbe0e 27-Oct-2011 Jim Grosbach <grosbach@apple.com> Trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143113 91177308-0d34-0410-b5e6-96231b3b80d8
390c40d96adb2eb4a778a0890c6c8743057e289e 27-Oct-2011 Nick Lewycky <nicholas@mxc.ca> Teach our Dwarf emission to use the string pool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143097 91177308-0d34-0410-b5e6-96231b3b80d8
746cb670c3cd4f79b288d56d8e9f195685a5381a 27-Oct-2011 Nick Lewycky <nicholas@mxc.ca> Reflow lines, fix comments for doxygen style, fix whitespace. No functionality

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143074 91177308-0d34-0410-b5e6-96231b3b80d8
3507d24547ce668c9a50c72b6748c0a303e295c1 25-Oct-2011 Bruno Cardoso Lopes <bruno.cardoso@gmail.com> This is the first of several patches for Mips direct object generation.
This first patch is for expression variable kinds.

Patch by Jack Carter!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142934 91177308-0d34-0410-b5e6-96231b3b80d8
44d798d9763bc32aaf49fe7c10d604845f4b6685 18-Oct-2011 Nick Lewycky <nicholas@mxc.ca> Add support for a new extension to the .file directive:

.file filenumber "directory" "filename"

This removes one join+split of the directory+filename in MC internals. Because
bitcode files have independent fields for directory and filenames in debug info,
this patch may change the .o files written by existing .bc files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142300 91177308-0d34-0410-b5e6-96231b3b80d8
9ca9acfaff3c5e9f9dc86b830ef0255610e254e7 17-Oct-2011 Owen Anderson <resistor@mac.com> Use the correct predicate for determining if a branch is conditional or not.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142257 91177308-0d34-0410-b5e6-96231b3b80d8
b006337bb8217d5c3def4001cbd978a848557882 17-Oct-2011 Benjamin Kramer <benny.kra@googlemail.com> MCOperand is pod-like.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142253 91177308-0d34-0410-b5e6-96231b3b80d8
5efabcf01d1c9cdf7ac59a17d757c6ad4cdb112c 16-Oct-2011 Benjamin Kramer <benny.kra@googlemail.com> Add AsmToken::getEndLoc and use it to add ranges to x86 asm register parsing.

<stdin>:1:12: error: register %rax is only available in 64-bit mode
incl %rax

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142137 91177308-0d34-0410-b5e6-96231b3b80d8
d8b7aa26134d2abee777f745c32005e63dea2455 16-Oct-2011 Chris Lattner <sabre@nondot.org> Enhance llvm::SourceMgr to support diagnostic ranges, the same way clang does. Enhance
the X86 asmparser to produce ranges in the one case that was annoying me, for example:

test.s:10:15: error: invalid operand for instruction
movl 0(%rax), 0(%edx)

It should be straight-forward to enhance filecheck, tblgen, and/or the .ll parser to use
ranges where appropriate if someone is interested.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142106 91177308-0d34-0410-b5e6-96231b3b80d8
042aadd8ee1e532e7ef7b6c3d42bcc94e7a6f156 10-Oct-2011 Owen Anderson <resistor@mac.com> MCAtom extending methods need to extend the range of the atom as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141557 91177308-0d34-0410-b5e6-96231b3b80d8
2fec6c5ff153786744ba7d0d302b73179731c5e9 05-Oct-2011 Owen Anderson <resistor@mac.com> Teach the MC to output code/data region marker labels in MachO and ELF modes. These are used by disassemblers to provide better disassembly, particularly on targets like ARM Thumb that like to intermingle data in the TEXT segment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141135 91177308-0d34-0410-b5e6-96231b3b80d8
9e5887b17e634b98f7c1cf0ee4f25c218097d08e 05-Oct-2011 Kevin Enderby <enderby@apple.com> Adding back support for printing operands symbolically to ARM's new disassembler
using llvm's public 'C' disassembler API now including annotations.

Hooked this up to Darwin's otool(1) so it can again print things like branch
targets for example this:
blx _puts
instead of this:
blx #-36
and includes support for annotations for branches to symbol stubs like:
bl 0x40 @ symbol stub for: _puts
and annotations for pc relative loads like this:
ldr r3, #8 @ literal pool for: Hello, world!
Also again can print the expression encoded in the Mach-O relocation entries for
things like this:
movt r0, :upper16:((_foo-_bar)+1234)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141129 91177308-0d34-0410-b5e6-96231b3b80d8
c291e2f5780c3a8470113a2a58c1fa680cd54b20 25-Sep-2011 Jakob Stoklund Olesen <stoklund@2pi.dk> Add target hook for pseudo instruction expansion.

Many targets use pseudo instructions to help register allocation. Like
the COPY instruction, these pseudos can be expanded after register
allocation. The early expansion can make life easier for PEI and the
post-ra scheduler.

This patch adds a hook that is called for all remaining pseudo
instructions from the ExpandPostRAPseudos pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140472 91177308-0d34-0410-b5e6-96231b3b80d8
124e1821033a4b3220f552229652d9460ed90673 23-Sep-2011 Owen Anderson <resistor@mac.com> Start stubbing out MCModule and MCAtom, which provide an API for accessing the rich disassembly of a complete object or executable.
These are very much a work in progress, and not really useful yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140345 91177308-0d34-0410-b5e6-96231b3b80d8
83a8031336a1155e6b0c3e9a84164324e08d1c8b 20-Sep-2011 Andrew Trick <atrick@apple.com> Restore hasPostISelHook tblgen flag.

No functionality change. The hook makes it explicit which patterns
require "special" handling. i.e. it self-documents tblgen
deficiencies. I plan to add verification in ExpandISelPseudos and
Thumb2SizeReduce to catch any missing hasPostISelHooks. Otherwise it's
too fragile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140160 91177308-0d34-0410-b5e6-96231b3b80d8
4815d56bb2c356a610f46753c5f1cefafa113b21 20-Sep-2011 Andrew Trick <atrick@apple.com> ARM isel bug fix for adds/subs operands.

Modified ARMISelLowering::AdjustInstrPostInstrSelection to handle the
full gamut of CPSR defs/uses including instructins whose "optional"
cc_out operand is not really optional. This allowed removal of the
hasPostISelHook to simplify the .td files and make the implementation
more robust.
Fixes rdar://10137436: sqlite3 miscompile

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140134 91177308-0d34-0410-b5e6-96231b3b80d8
98c5ddabca1debf935a07d14d0cbc9732374bdb8 16-Sep-2011 Owen Anderson <resistor@mac.com> Don't attach annotations to MCInst's. Instead, have the disassembler return, and the printer accept, an annotation string which can be passed through if the client cares about annotations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139876 91177308-0d34-0410-b5e6-96231b3b80d8
ede042dc8d59ff48a48ef8e2271f2a7ee8324ba5 15-Sep-2011 Owen Anderson <resistor@mac.com> Add support for stored annotations to MCInst, and provide facilities for MC-based InstPrinters to print them out. Enhance the ARM and X86 InstPrinter's to do so in verbose mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139820 91177308-0d34-0410-b5e6-96231b3b80d8
6148225b9590f18fcb6a1d3151d3158b316965e0 14-Sep-2011 Jim Grosbach <grosbach@apple.com> Move state var to private class member.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139697 91177308-0d34-0410-b5e6-96231b3b80d8
f1c21a8da6ed27a6ab4944e30bbeb4bd3ee08a71 14-Sep-2011 Kevin Enderby <enderby@apple.com> First step in supporting #line directives in assembler. This step parses the
#line directives with the needed support in the lexer. Next will be to build
a simple file/line# table mapping source SMLoc's for later use by diagnostics.
And the last step will be to get the diagnostics to use the mapping for file
and line numbers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139669 91177308-0d34-0410-b5e6-96231b3b80d8
b950585cc5a0d665e9accfe5ce490cd269756f2e 07-Sep-2011 James Molloy <james.molloy@arm.com> Refactor instprinter and mcdisassembler to take a SubtargetInfo. Add -mattr= handling to llvm-mc. Reviewed by Owen Anderson.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139237 91177308-0d34-0410-b5e6-96231b3b80d8
147272b8a70db7984a6bdfad3b5efabcb794a42e 02-Sep-2011 Duncan Sands <baldrick@free.fr> Darwin wants ctors/dtors to be ordered the other way round to linux.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139015 91177308-0d34-0410-b5e6-96231b3b80d8
36a16015ac108e2f0dd2d6d96a6d364bc74c50d7 02-Sep-2011 Benjamin Kramer <benny.kra@googlemail.com> Don't drop alignment info on local common symbols.

- On COFF the .lcomm directive has an alignment argument.
- On ELF we fall back to .local + .comm

Based on a patch by NAKAMURA Takumi.

Fixes PR9337, PR9483 and PR10128.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138976 91177308-0d34-0410-b5e6-96231b3b80d8
cda2a146d1fcf3f499a1aa535377fb332e918bd5 30-Aug-2011 Jeffrey Yasskin <jyasskin@google.com> Fix C++0x narrowing errors when char is unsigned.

In the case of EDInstInfo, this would actually cause a bug when -1 became 255
and was then compared >=0 in llvm-mc/Disassembler.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138825 91177308-0d34-0410-b5e6-96231b3b80d8
37fefc20d3a1e3934a377567d54a141f67752227 30-Aug-2011 Evan Cheng <evan.cheng@apple.com> Follow up to r138791.

Add a instruction flag: hasPostISelHook which tells the pre-RA scheduler to
call a target hook to adjust the instruction. For ARM, this is used to
adjust instructions which may be setting the 's' flag. ADC, SBC, RSB, and RSC
instructions have implicit def of CPSR (required since it now uses CPSR physical
register dependency rather than "glue"). If the carry flag is used, then the
target hook will *fill in* the optional operand with CPSR. Otherwise, the hook
will remove the CPSR implicit def from the MachineInstr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138810 91177308-0d34-0410-b5e6-96231b3b80d8
f8e1e3e729473b8b2b7ee6134b6417976af84d05 30-Aug-2011 Jim Grosbach <grosbach@apple.com> Thumb2 parsing and encoding for IT blocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138773 91177308-0d34-0410-b5e6-96231b3b80d8
7e0d22cbf7b41e93279f574c9b3c557cdf517dcb 29-Aug-2011 Jim Grosbach <grosbach@apple.com> Tidy up. 80 columns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138750 91177308-0d34-0410-b5e6-96231b3b80d8
7801136b95d1fbe515b9655b73ada39b05a33559 23-Aug-2011 Evan Cheng <evan.cheng@apple.com> Some refactoring so TargetRegistry.h no longer has to include any files
from MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138367 91177308-0d34-0410-b5e6-96231b3b80d8
6667e5429608b5a0d55850b980ae433deda0e5f2 23-Aug-2011 Benjamin Kramer <benny.kra@googlemail.com> Add an MCInstrAnalysis version of isCall.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138305 91177308-0d34-0410-b5e6-96231b3b80d8
83e3f67fb68d497b600da83a62f000fcce7868a9 17-Aug-2011 Owen Anderson <resistor@mac.com> Allow the MCDisassembler to return a "soft fail" status code, indicating an instruction that is disassemblable, but invalid. Only used for ARM UNPREDICTABLE instructions at the moment.
Patch by James Molloy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137830 91177308-0d34-0410-b5e6-96231b3b80d8
1b84cce77f8bccc905b4800927ce9016f76c1c40 16-Aug-2011 Jim Grosbach <grosbach@apple.com> Remove unused Target argument from AsmParser construction methods.

The argument is unused, and is a layering violation in any case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137735 91177308-0d34-0410-b5e6-96231b3b80d8
ac29c0af3da1bc1da414899a78ffb0a2360f8cda 16-Aug-2011 Jim Grosbach <grosbach@apple.com> Remove unused forward declaration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137734 91177308-0d34-0410-b5e6-96231b3b80d8
0ba45d4fb3e11d8085b01008e31477bece20d01d 16-Aug-2011 Jim Grosbach <grosbach@apple.com> Tidy up. Trailing whitespace.

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48c4c6807b2f1b1d0d61c69c1a5c9328ade26941 16-Aug-2011 Rafael Espindola <rafael.espindola@gmail.com> Remove unimplemented method. Fixes PR10658.
Thanks to Jonas Gafele for noticing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137716 91177308-0d34-0410-b5e6-96231b3b80d8
19cb7f491fbc7cb5d0bbd10e201f9d5093e6d4e5 16-Aug-2011 Jim Grosbach <grosbach@apple.com> MCTargetAsmParser target match predicate support.

Allow a target assembly parser to do context sensitive constraint checking
on a potential instruction match. This will be used, for example, to handle
Thumb2 IT block parsing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137675 91177308-0d34-0410-b5e6-96231b3b80d8
47a24ab4d72dc0f78c2027327cb9a69d6de2bbcd 15-Aug-2011 Jim Grosbach <grosbach@apple.com> Move MatchResultTy enum into base class definition.

No need for it to be redefined as part of every derived target asm parser

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137649 91177308-0d34-0410-b5e6-96231b3b80d8
bb0752b040cfe206afeef7fa60e80dde91594fa1 15-Aug-2011 Jim Grosbach <grosbach@apple.com> Tidy up trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137619 91177308-0d34-0410-b5e6-96231b3b80d8
08de97a5b024c3dc7dd051ecaa63d7ec1a27a5cf 08-Aug-2011 Benjamin Kramer <benny.kra@googlemail.com> Pacify virtual dtor warnings and cmake buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137060 91177308-0d34-0410-b5e6-96231b3b80d8
41ab14b725c8f2bb3e54553d0d7d96ff184786b1 08-Aug-2011 Benjamin Kramer <benny.kra@googlemail.com> Add MCInstrAnalysis class. This allows the targets to specify own versions of MCInstrDescs functions.

- Add overrides for ARM.
- Teach llvm-objdump to use this instead of plain MCInstrDesc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137059 91177308-0d34-0410-b5e6-96231b3b80d8
56cb3e3ccbc766086841d04fb8f136c7b4718dd5 03-Aug-2011 Owen Anderson <resistor@mac.com> Add accessors for manipulating an MCInst's operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136818 91177308-0d34-0410-b5e6-96231b3b80d8
49cb9b88867426d1a430f248550d3cc785a68fe4 02-Aug-2011 Rafael Espindola <rafael.espindola@gmail.com> Assume .cfi_startproc is the first thing in a function. If the function is
externally visable, create a local symbol to use in the CFE. If not, use the
function label itself.

Fixes PR10420.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136716 91177308-0d34-0410-b5e6-96231b3b80d8
423b81e6924f882f8b1cf7a7d4126b25b5f915aa 01-Aug-2011 Owen Anderson <resistor@mac.com> Add a clear() operation to MCInst, to drop all of its operands. Useful for the disassembler, where we may realize fairly late into decoding that something is wrong and need to reset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136634 91177308-0d34-0410-b5e6-96231b3b80d8
bd27f5adbd8f3b8ab8def5aa43fbc406ac9b8cbe 27-Jul-2011 Evan Cheng <evan.cheng@apple.com> Support .code32 and .code64 in X86 assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136197 91177308-0d34-0410-b5e6-96231b3b80d8
94b9550a32d189704a8eae55505edf62662c0534 26-Jul-2011 Evan Cheng <evan.cheng@apple.com> Rename TargetAsmParser to MCTargetAsmParser and TargetAsmLexer to MCTargetAsmLexer; rename createAsmLexer to createMCAsmLexer and createAsmParser to createMCAsmParser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136027 91177308-0d34-0410-b5e6-96231b3b80d8
78c10eeaa57d1c6c4b7781d3c0bcb0cfbbc43b5c 26-Jul-2011 Evan Cheng <evan.cheng@apple.com> Rename TargetAsmBackend to MCAsmBackend; rename createAsmBackend to createMCAsmBackend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136010 91177308-0d34-0410-b5e6-96231b3b80d8
f0080016c64b784ca6eb402d43e323642505b395 26-Jul-2011 Evan Cheng <evan.cheng@apple.com> Fix include guards.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135998 91177308-0d34-0410-b5e6-96231b3b80d8
59a4f9af0a2e94ec04840a066251eca34bf3e3f8 23-Jul-2011 Benjamin Kramer <benny.kra@googlemail.com> Fix a silly off by one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135842 91177308-0d34-0410-b5e6-96231b3b80d8
71883edee29bbbbf3af2aca08de9e50e257252e7 23-Jul-2011 Benjamin Kramer <benny.kra@googlemail.com> Add more constness.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135838 91177308-0d34-0410-b5e6-96231b3b80d8
9df8567548e15c6cd91e8a5851784574c4f09528 23-Jul-2011 Benjamin Kramer <benny.kra@googlemail.com> Turn the DenseSet in MCRegisterClass into a tblgenerated bit field. This should be faster and smaller.

Goodbye static ctors and dtors!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135836 91177308-0d34-0410-b5e6-96231b3b80d8
a7cfc08ebe737062917b442830eb5321b0f79e89 23-Jul-2011 Evan Cheng <evan.cheng@apple.com> Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where they belong.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135833 91177308-0d34-0410-b5e6-96231b3b80d8
dda1bdc962a314bf4fca86f4cd4802ff6c55b172 22-Jul-2011 Bill Wendling <isanbard@gmail.com> Add a method to get the list of FrameInfos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135805 91177308-0d34-0410-b5e6-96231b3b80d8
8ca9a862038e8c4e9a2ca73b3b75e1be3425155f 22-Jul-2011 Benjamin Kramer <benny.kra@googlemail.com> Teach tblgen to emit MCRegisterClasses.

- This currently introduces more instances of the static DenseSet dtor, but that should be fixable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135735 91177308-0d34-0410-b5e6-96231b3b80d8
a50c175fe3c7a3034df18747cfacb3b153c493c8 21-Jul-2011 Benjamin Kramer <benny.kra@googlemail.com> Sink parts of TargetRegisterClass into MCRegisterClass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135683 91177308-0d34-0410-b5e6-96231b3b80d8
203576aa0cb9d8bf2d2e4d910ebab4b7a63262ae 20-Jul-2011 Evan Cheng <evan.cheng@apple.com> Goodbye TargetAsmInfo. This eliminate last bit of CodeGen and Target in llvm-mc.

There is still a bit more refactoring left to do in Targets. But we are now very
close to fixing all the layering issues in MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135611 91177308-0d34-0410-b5e6-96231b3b80d8
34ad6db8b958fdc0d38e122edf753b5326e69b03 20-Jul-2011 Evan Cheng <evan.cheng@apple.com> - Move CodeModel from a TargetMachine global option to MCCodeGenInfo.
- Introduce JITDefault code model. This tells targets to set different default
code model for JIT. This eliminates the ugly hack in TargetMachine where
code model is changed after construction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135580 91177308-0d34-0410-b5e6-96231b3b80d8
e76a33b9567d78a5744dc52fcec3a6056d6fb576 20-Jul-2011 Evan Cheng <evan.cheng@apple.com> Add MCObjectFileInfo and sink the MCSections initialization code from
TargetLoweringObjectFileImpl down to MCObjectFileInfo.

TargetAsmInfo is done to one last method. It's *almost* gone!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135569 91177308-0d34-0410-b5e6-96231b3b80d8
439661395fd2a2a832dba01c65bc88718528313c 19-Jul-2011 Evan Cheng <evan.cheng@apple.com> Introduce MCCodeGenInfo, which keeps information that can affect codegen
(including compilation, assembly). Move relocation model Reloc::Model from
TargetMachine to MCCodeGenInfo so it's accessible even without TargetMachine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135468 91177308-0d34-0410-b5e6-96231b3b80d8
d967578a8c506be341d20a1558eebb31484b8b6d 19-Jul-2011 Bill Wendling <isanbard@gmail.com> Add a method to set compact unwind encoding information in a frame.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135449 91177308-0d34-0410-b5e6-96231b3b80d8
88b976060af9e33f79d146db0766d5c36757ca5b 19-Jul-2011 Bill Wendling <isanbard@gmail.com> Add a field for the compact unwind encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135446 91177308-0d34-0410-b5e6-96231b3b80d8
2d28617de2b0b731c08d1af9e830f31e14ac75b4 19-Jul-2011 Evan Cheng <evan.cheng@apple.com> Move getInitialFrameState from TargetFrameInfo to MCAsmInfo (suggestions for
better location welcome).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135438 91177308-0d34-0410-b5e6-96231b3b80d8
0e6a052331f674dd70e28af41f654a7874405eab 18-Jul-2011 Evan Cheng <evan.cheng@apple.com> Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo down
to MCRegisterInfo. Also initialize the mapping at construction time.

This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step
towards fixing the layering violation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135424 91177308-0d34-0410-b5e6-96231b3b80d8
1be0e271a07925b928ba89848934f1ea6f1854e2 15-Jul-2011 Evan Cheng <evan.cheng@apple.com> Move some parts of TargetAsmInfo down to MCAsmInfo. This is not the greatest
solution but it is a small step towards removing the horror that is

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135237 91177308-0d34-0410-b5e6-96231b3b80d8
5196c12e9fdec9ef3c63d96cb529c1c1cb732773 14-Jul-2011 Benjamin Kramer <benny.kra@googlemail.com> Add a new field to MCOperandInfo that contains information about the type of the Operand.

- The actual values are from the MCOI::OperandType enum.
- Teach tblgen to read it from the instruction definition.
- This is a better implementation of the hacks in edis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135197 91177308-0d34-0410-b5e6-96231b3b80d8
672b93a3324cc1da6d374eed4c75c050a9cad7be 14-Jul-2011 Evan Cheng <evan.cheng@apple.com> Unfortunately several files in MC are badly violating layering rule by using
TargetAsmInfo, which in turn pulls in TargetRegisterInfo, etc. :-( There are
other cases of violations, but this is probably the worst.

This patch is but one small step towards fixing this. 500 more steps to go. :-(

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16884415db751c75f2133bd04921393c792b1158 14-Jul-2011 Owen Anderson <resistor@mac.com> Add a target-indepedent entry to MCInstrDesc to describe the encoded size of an opcode. Switch ARM over to using that rather than its own special MCInstrDesc bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135106 91177308-0d34-0410-b5e6-96231b3b80d8
b7f689bab98777236a2bf600f299d232d246bb61 13-Jul-2011 Jim Grosbach <grosbach@apple.com> Update MCParsedAsmOperand debug methods.

Update the debug output interface for MCParsedAsmOperand to have a print()
method which takes an output stream argument, an << operator which invokes
the print method using the given stream, and a dump() method which prints
the operand to the dbgs() stream. This makes the interface more consistent
with the rest of LLVM, and more convenient to use at the debugger command

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135043 91177308-0d34-0410-b5e6-96231b3b80d8
59ee62d2418df8db499eca1ae17f5900dc2dcbba 11-Jul-2011 Evan Cheng <evan.cheng@apple.com> - Eliminate MCCodeEmitter's dependency on TargetMachine. It now uses MCInstrInfo
and MCSubtargetInfo.
- Added methods to update subtarget features (used when targets automatically
detect subtarget features or switch modes).
- Teach X86Subtarget to update MCSubtargetInfo features bits since the
MCSubtargetInfo layer can be shared with other modules.
- These fixes .code 16 / .code 32 support since mode switch is updated in
MCSubtargetInfo so MC code emitter can do the right thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134884 91177308-0d34-0410-b5e6-96231b3b80d8
ffc0e73046f737d75e0a62b3a83ef19bcef111e3 09-Jul-2011 Evan Cheng <evan.cheng@apple.com> Change createAsmParser to take a MCSubtargetInfo instead of triple,
CPU, and feature string. Parsing some asm directives can change
subtarget state (e.g. .code 16) and it must be reflected in other
modules (e.g. MCCodeEmitter). That is, the MCSubtargetInfo instance
must be shared.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134795 91177308-0d34-0410-b5e6-96231b3b80d8
3014b2f3228e1aac1a70598f50d66f1afcc16714 07-Jul-2011 Akira Hatanaka <ahatanak@gmail.com> This patch adds a flag in MCAsmInfo that indicates whether dwarf register
numbers should be printed instead of symbolic register names in
MCAsmStreamer::EmitRegisterName. This is necessary because some versions of
GNU assembler won't accept code in which symbolic register names are used in
cfi directives. There is no change in behavior unless the flag is explicitly
set to true by a backend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134635 91177308-0d34-0410-b5e6-96231b3b80d8
347c50a2933f756097fa5798f2b6c34a19df4162 07-Jul-2011 Evan Cheng <evan.cheng@apple.com> Feature bits are 64-bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134607 91177308-0d34-0410-b5e6-96231b3b80d8
0ddff1b5359433faf2eb1c4ff5320ddcbd42f52f 07-Jul-2011 Evan Cheng <evan.cheng@apple.com> Compute feature bits at time of MCSubtargetInfo initialization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134606 91177308-0d34-0410-b5e6-96231b3b80d8
2416b8962105078594d70cdd16cc6cb45b332e02 02-Jul-2011 Evan Cheng <evan.cheng@apple.com> Add getFeatureBits to extract feature bits for a given CPU.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134298 91177308-0d34-0410-b5e6-96231b3b80d8
94214703d97d8d9dfca88174ffc7e94820a85e62 01-Jul-2011 Evan Cheng <evan.cheng@apple.com> - Added MCSubtargetInfo to capture subtarget features and scheduling
- Refactor TargetSubtarget to be based on MCSubtargetInfo.
- Change tablegen generated subtarget info to initialize MCSubtargetInfo
and hide more details from targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134257 91177308-0d34-0410-b5e6-96231b3b80d8
3f9b9eb57dafc2a25a6e3d9ee570bd5a884b11e3 01-Jul-2011 Rafael Espindola <rafael.espindola@gmail.com> Fix use after free.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134234 91177308-0d34-0410-b5e6-96231b3b80d8
e1bff38386b0af24b5564c3d20888c7bbb045099 01-Jul-2011 Evan Cheng <evan.cheng@apple.com> Switch SubtargetFeatures from std::string to StringRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134219 91177308-0d34-0410-b5e6-96231b3b80d8
276365dd4bc0c2160f91fd8062ae1fc90c86c324 30-Jun-2011 Evan Cheng <evan.cheng@apple.com> Fix the ridiculous SubtargetFeatures API where it implicitly expects CPU name to
be the first encoded as the first feature. It then uses the CPU name to look up
features / scheduling itineray even though clients know full well the CPU name
being used to query these properties.

The fix is to just have the clients explictly pass the CPU name!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134127 91177308-0d34-0410-b5e6-96231b3b80d8
33b259f46cc281531c36b471862cb0853d2528df 29-Jun-2011 Evan Cheng <evan.cheng@apple.com> Indentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134100 91177308-0d34-0410-b5e6-96231b3b80d8
ab8be96fd30ca9396e6b84fdddf1ac6208984cad 29-Jun-2011 Evan Cheng <evan.cheng@apple.com> Sink SubtargetFeature and TargetInstrItineraries (renamed MCInstrItineraries) into MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134049 91177308-0d34-0410-b5e6-96231b3b80d8
22fee2dff4c43b551aefa44a96ca74fcade6bfac 28-Jun-2011 Evan Cheng <evan.cheng@apple.com> Merge XXXGenRegisterNames.inc into XXXGenRegisterInfo.inc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134024 91177308-0d34-0410-b5e6-96231b3b80d8
e837dead3c8dc3445ef6a0e2322179c57e264a13 28-Jun-2011 Evan Cheng <evan.cheng@apple.com> - Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and
sink them into MC layer.
- Added MCInstrInfo, which captures the tablegen generated static data. Chang
TargetInstrInfo so it's based off MCInstrInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134021 91177308-0d34-0410-b5e6-96231b3b80d8
5e6b4605bd620a864055276a6d454e5a18f9fee8 25-Jun-2011 Evan Cheng <evan.cheng@apple.com> Rename TargetRegisterDesc to MCRegisterDesc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133845 91177308-0d34-0410-b5e6-96231b3b80d8
ba8297ec08cdf7ae0c1e0c18ce07922e1f822643 25-Jun-2011 Jim Grosbach <grosbach@apple.com> Refactor MachO relocation generaration into the Target directories.

Move the target-specific RecordRelocation logic out of the generic MC
MachObjectWriter and into the target-specific object writers. This allows
nuking quite a bit of target knowledge from the supposedly target-independent
bits in lib/MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133844 91177308-0d34-0410-b5e6-96231b3b80d8
f5fa52ed064098be7130aa4ec1236037907ce3fa 24-Jun-2011 Evan Cheng <evan.cheng@apple.com> - Add MCRegisterInfo registration machinery. Also added x86 registration routines.
- Rename TargetRegisterDesc to MCRegisterDesc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133820 91177308-0d34-0410-b5e6-96231b3b80d8
a347f85dbeee37a7f2bb68df1a7d4cdfbb7b576d 24-Jun-2011 Evan Cheng <evan.cheng@apple.com> Starting to refactor Target to separate out code that's needed to fully describe
target machine from those that are only needed by codegen. The goal is to
sink the essential target description into MC layer so we can start building
MC based tools without needing to link in the entire codegen.

First step is to refactor TargetRegisterInfo. This patch added a base class
MCRegisterInfo which TargetRegisterInfo is derived from. Changed TableGen to
separate register description from the rest of the stuff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133782 91177308-0d34-0410-b5e6-96231b3b80d8
e266ce6c6eaf52ebe2b18d85b5e23788cf2f6ef4 17-Jun-2011 Bill Wendling <isanbard@gmail.com> Use the verbose asm flag instead of a new flag for decoding the LSDA.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133292 91177308-0d34-0410-b5e6-96231b3b80d8
916a94b870042772568fca7995cf45aef7a6e333 17-Jun-2011 Bill Wendling <isanbard@gmail.com> Add an option that allows one to "decode" the LSDA.

The LSDA is a bit difficult for the non-initiated to read. Even with comments,
it's not always clear what's going on. This wraps the ASM streamer in a class
that retains the LSDA and then emits a human-readable description of what's
going on in it.

So instead of having to make sense of:

.byte 255
.byte 155
.byte 168
.space 1
.byte 3
.byte 26
Lset0 = Ltmp7-Leh_func_begin1
.long Lset0
Lset1 = Ltmp812-Ltmp7
.long Lset1
Lset2 = Ltmp913-Leh_func_begin1
.long Lset2
.byte 3
Lset3 = Ltmp812-Leh_func_begin1
.long Lset3
Lset4 = Leh_func_end1-Ltmp812
.long Lset4
.long 0
.byte 0
.byte 1
.byte 0
.byte 2
.byte 125
.long __ZTIi@GOTPCREL+4

you can read this instead:

## Exception Handling Table: Lexception1
## @LPStart Encoding: omit
## @TType Encoding: indirect pcrel sdata4
## @TType Base: 40 bytes
## @CallSite Encoding: udata4
## @Action Table Size: 26 bytes

## Action 1:
## A throw between Ltmp7 and Ltmp812 jumps to Ltmp913 on an exception.
## For type(s): __ZTIi@GOTPCREL+4 __ZTIPKc@GOTPCREL+4
## Action 2:
## A throw between Ltmp812 and Leh_func_end1 does not have a landing pad.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133286 91177308-0d34-0410-b5e6-96231b3b80d8
e82b8eeaa2d36ee52690ae19bca9735629b6003e 15-Jun-2011 Jim Grosbach <grosbach@apple.com> Diagnostic for undefined assembler local symbols.

Re-apply 133010, with fixes for inline assembler.

Original commit message:
"When an assembler local symbol is used but not defined in a module, a
Darwin assembler wants to issue a diagnostic to that effect."

Added fix to only perform the check when finalizing, as otherwise we're not
done and undefined symbols may simply not have been encountered yet.

Passes "make check" and a self-host check on Darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133071 91177308-0d34-0410-b5e6-96231b3b80d8
6c3044db28ca1efa4d3da4ea40043bf8a3a8e030 14-Jun-2011 Jim Grosbach <grosbach@apple.com> Revert 133010. Self-hosted buildbot unhappy.

Apparently llvm itself generates undefined assembler local labels, causing
self-hosting problems with this patch. Reverting until that's sorted out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133013 91177308-0d34-0410-b5e6-96231b3b80d8
c35dd25ab820c3db37b7bfd506d656c14b14e331 14-Jun-2011 Jim Grosbach <grosbach@apple.com> Diagnostic for undefined assembler local symbols.

When an assembler local symbol is used but not defined in a module, a
Darwin assembler wants to issue a diagnostic to that effect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133010 91177308-0d34-0410-b5e6-96231b3b80d8
a1000742d28f33dd8dd9858e64282e7749c0bd64 09-Jun-2011 Roman Divacky <rdivacky@freebsd.org> Fix emission of PPC64 assembler on non-darwin platforms by splitting
VK_PPC_{HA,LO}16 into darwin and gas variants.

Darwin wants {ha,lo}16(symbol) while gnu as wants symbol@{ha,l}.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132802 91177308-0d34-0410-b5e6-96231b3b80d8
653664471333f316020e96dd3d664f4984f66a65 05-Jun-2011 Rafael Espindola <rafael.espindola@gmail.com> Basic support for macros with explicit arguments.

We still don't handle

* default values
* :req
* :vararg
* \()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132656 91177308-0d34-0410-b5e6-96231b3b80d8
645aef1480384292b042c98ffe623a59ab0af049 03-Jun-2011 Charles Davis <cdavis@mines.edu> Treat Win64 EH as a DWARF EH scheme. For GCC-style exceptions, the layout of
the handler's data area is similar to a DWARF-format LSDA. (It is, in fact,
a 32-bit pointer to the personality routine followed by the DWARF LSDA.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132532 91177308-0d34-0410-b5e6-96231b3b80d8
cde4ce411b1ace4a80ea1dd38df97e8508aed0c9 02-Jun-2011 Rafael Espindola <rafael.espindola@gmail.com> Don't hardcode the %reg format in the streamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132451 91177308-0d34-0410-b5e6-96231b3b80d8
d652b1368b1e381382951f450e5eeca870d91dd6 28-May-2011 Charles Davis <cdavis@mines.edu> Stub out support for Win64-style exceptions. Note that this is merely using
the Win64 EH mechanism to implement GCC-style exceptions. LLVM supports
hardly anything else at this point!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132234 91177308-0d34-0410-b5e6-96231b3b80d8
7b06b7357aa5a7cbdd769edbf6edb10fa055ea09 27-May-2011 Charles Davis <cdavis@mines.edu> Add a parameter to the Win64 EH section getters to get a section with a
suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but
I'll get to it in the next patch.

Fix up all callers of the affected functions. Make them pass said suffix to
the function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132205 91177308-0d34-0410-b5e6-96231b3b80d8
c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4ef 27-May-2011 Charles Davis <cdavis@mines.edu> Start keeping track of where the various unwind instructions are in the prolog.
Use them to calculate the offset inside the prolog. Emit this value when
emitting the unwind codes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132177 91177308-0d34-0410-b5e6-96231b3b80d8
ca93138e11f404a19553049a569f1fa6ad491b67 26-May-2011 Charles Davis <cdavis@mines.edu> Test .seh_startchained and .seh_endchained parsing.

Rework how the MCWin64EHUnwindInfo instances are stored. Fix issues with
chained unwind areas exposed by the test that were related to this.

The ChainedParent field had the wrong address, because when the chained unwind
info was added, the addresses shifted around. Now we store the pointers to the
structures, which are now allocated from the MC heap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132106 91177308-0d34-0410-b5e6-96231b3b80d8
410ef2b263e92d3de1b2acff7437059400daed7d 25-May-2011 Charles Davis <cdavis@mines.edu> Add tests for .seh_setframe and .seh_handlerdata parsing. Fix issues with

I had to add a special SwitchSectionNoChange method to MCStreamer just for
.seh_handlerdata. If this isn't OK, please let me know, and I'll find some
other way to fix .seh_handlerdata streaming.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132084 91177308-0d34-0410-b5e6-96231b3b80d8
fbc539ff37ddd08c2480be9185e7a40919ce8940 22-May-2011 Charles Davis <cdavis@mines.edu> Add methods to parse the SEH directives to the COFFAsmParser. Implement some
of them, particularly the ones that don't take arguments. Also implement
.seh_proc and .seh_handler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131866 91177308-0d34-0410-b5e6-96231b3b80d8
38ea9eecd7c810e11f96c8306b241f9db88fc62f 22-May-2011 Charles Davis <cdavis@mines.edu> Implement emission of all Win64 exception tables. Make the COFF streamer emit
these tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131833 91177308-0d34-0410-b5e6-96231b3b80d8
3185f5c35322cbd10040ab20f265042d477efe62 22-May-2011 Charles Davis <cdavis@mines.edu> Make the COFF streamer emit unwind info when processing a .seh_handlerdata

Implement emission of Win64 EH unwind info.

Pull in <cassert> in MCWin64EH.h so it can use the assert() macro.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131832 91177308-0d34-0410-b5e6-96231b3b80d8
321fe74b2d40d7762175fbd3054fda00b5e70833 21-May-2011 Charles Davis <cdavis@mines.edu> A handler for a function in the Win64 EH scheme can be both an unwind handler
and an exception handler. Handle that case.

Also, add an 'Emitted' member to the MCWin64EHUnwindInfo struct. It will be
needed later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131791 91177308-0d34-0410-b5e6-96231b3b80d8
a6f2678f08299f053feb58337fc4322131d99bf4 19-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Misc code refactorings:
* Remove unnecessary arguments now that ForceExpAbs is a method.
* Use ForceExpAbs in EmitAbsValue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131683 91177308-0d34-0410-b5e6-96231b3b80d8
61558aaf4f924fd44fd2f275fcb7ab7199ede304 19-May-2011 Charles Davis <cdavis@mines.edu> Implement the EndProlog Win64 EH method on the base MCStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131679 91177308-0d34-0410-b5e6-96231b3b80d8
c3b162857a587c9877e903f038471b882b213232 19-May-2011 Charles Davis <cdavis@mines.edu> Implement the Win64 EH prolog instruction methods on the base MCStreamer.

I had to change the API slightly to avoid overloading issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131666 91177308-0d34-0410-b5e6-96231b3b80d8
f8cd708f14a7a172d51899b68809510ae0c4c4c8 19-May-2011 Joerg Sonnenberger <joerg@bec.de> Reapply 131644 including the missing header changes:
Introduce -fatal-assembler-warnings for the obvious purpose

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131655 91177308-0d34-0410-b5e6-96231b3b80d8
440596ffe5bb77a202acb36d5eadd158976ff39a 19-May-2011 Charles Davis <cdavis@mines.edu> Turns out GAS does have Win64 EH directives. (It also supports WinCE EH.) Make
ours compatible with GAS.

In retrospect, I should have emailed binutils about this earlier. Thanks to
Kai Tietz for pointing out that GAS already had SEH directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131652 91177308-0d34-0410-b5e6-96231b3b80d8
91d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1 19-May-2011 Charles Davis <cdavis@mines.edu> Implement the StartChained and EndChained Win64 EH methods on MCStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131629 91177308-0d34-0410-b5e6-96231b3b80d8
0855bc5b973320052c87bdcc2fa17b9711edc3de 19-May-2011 Charles Davis <cdavis@mines.edu> Implement the StartProc and EndProc Win64 EH methods on the base MCStreamer.

Based largely on Rafael Espindola's work on CFI. Other methods soon to follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131623 91177308-0d34-0410-b5e6-96231b3b80d8
fa89218a438c0fcafb40775bdc04dbe95c59fba3 19-May-2011 Charles Davis <cdavis@mines.edu> Fix build issues with headers, which I discovered by actually using them.

Also, convert all the inline functions on UnwindInfo into methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131622 91177308-0d34-0410-b5e6-96231b3b80d8
f0542c07f7be612c5177243049dc23d24bde8852 19-May-2011 Charles Davis <cdavis@mines.edu> Add a header patterned after MCDwarf.h for supporting Win64 exception handling
under MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131593 91177308-0d34-0410-b5e6-96231b3b80d8
f07090134d06e0cf3508e8b8e87d775f0a7982c1 18-May-2011 Charles Davis <cdavis@mines.edu> Add some more Win64 EH directives:
- StartChained and EndChained delimit a chained unwind area, which can contain
additional operations to be undone if an exception occurs inside of it.
- UnwindOnly declares that this function doesn't handle any exceptions. If it
has a handler, it's an unwind handler instead of an exception handler.
- Lsda declares the location and size of the LSDA, which in the Win64 EH
scheme is kept inside the UNWIND_INFO struct. Windows itself ignores the
LSDA; it's used by the Language-Specific Handler (the "Personality Function"
from DWARF).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131572 91177308-0d34-0410-b5e6-96231b3b80d8
9c77398d1c89f615735d304cd7eda3c3e9b1504f 18-May-2011 Charles Davis <cdavis@mines.edu> While thinking about how to know where the functions' boundaries are for
the purposes of the Win64 EH tables, I realized we had no way to tell where
the function ends. (MASM bounds functions with PROC and ENDP keywords.)
Add a directive to delimit the end of the function, and rename the 'frame'
directive to more accurately reflect its duality with the new directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131522 91177308-0d34-0410-b5e6-96231b3b80d8
cacdc4fc41f035c149d5f1b92acd587d475ffd58 16-May-2011 Charles Davis <cdavis@mines.edu> Add a method I forgot in the last commit. Don't worry, this one passed
self-host :).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131421 91177308-0d34-0410-b5e6-96231b3b80d8
6469540adf63d94a876c2b623cb4ca70479647f7 16-May-2011 Rafael Espindola <rafael.espindola@gmail.com> sets bit 0 of the function address of thumb function in .symtab
("T is 1 if the target symbol S has type STT_FUNC and the
symbol addresses a Thumb instruction ;it is 0 otherwise."
from "ELF for the ARM Architecture"

Patch by Koan-Sin Tan!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131406 91177308-0d34-0410-b5e6-96231b3b80d8
ff96a12db635daf4f88cfea899e63a885dfaa9ed 15-May-2011 Charles Davis <cdavis@mines.edu> Add stub methods to MCStreamer for emitting Win64 exception-handling

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131382 91177308-0d34-0410-b5e6-96231b3b80d8
dc52ecf6fdbee63652d2dac0dccc17e23ac7797f 10-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Rename DwarfRequiresRelocationForStmtList to
DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131148 91177308-0d34-0410-b5e6-96231b3b80d8
40a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08 10-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Add support for producing .deubg_frame sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131121 91177308-0d34-0410-b5e6-96231b3b80d8
c25dad8750083829d9a8935ce40d0734e5488f8e 10-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Factor some code into a new EmitFrames method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131119 91177308-0d34-0410-b5e6-96231b3b80d8
f9efd83166401bca542c6702ea329f9901c4e04b 10-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Parsing and plumbing for .cfi_sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131117 91177308-0d34-0410-b5e6-96231b3b80d8
4eafe109459eb115f13f1d19c5ff3cb3678e8c7a 08-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Don't force relaxation of AdvanceLoc instructions on OS X. gdb is happy with
the smaller encoding and this cuts 270336 bytes from a release version of
clang and 1246272 bytes from a debug build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131067 91177308-0d34-0410-b5e6-96231b3b80d8
be91117c4d719fe15743f21cd5ac9aaf6654c8ab 07-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Switch Darwin to the generic CIE/FDE printer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131031 91177308-0d34-0410-b5e6-96231b3b80d8
f2b04232006142eb7933972fb21d9ffb9b8c2646 06-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Dead code elimination.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130984 91177308-0d34-0410-b5e6-96231b3b80d8
254784f9e0ae59fc060ccd54b39cd1e94ac91356 06-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Remove the DwarfTable enum.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130959 91177308-0d34-0410-b5e6-96231b3b80d8
597a7664e1bbe2ea5f757eb6e853bd1d2fe98d6c 04-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Producing a DW_FORM_addr for DW_AT_stmt_list is probably correct, but
it is both inefficient and unexpected by dwarfdump. Change to
a DW_FORM_data4.

While in here, change the predicate name to reflect that the position
is not really absolute (it is an offset), just that the linker needs a

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130846 91177308-0d34-0410-b5e6-96231b3b80d8
5426a9ee37667660935d80841c5392d78e254318 01-May-2011 Rafael Espindola <rafael.espindola@gmail.com> GCC uses a different encoding of pointers in the FDE when using
-fno-dwarf2-cfi-asm. Implement the same behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130637 91177308-0d34-0410-b5e6-96231b3b80d8
debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2be 01-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Simplify the handling of pcrel relocations on ELF. Now we do the right thing
for all symbol differences and can drop the old EmitPCRelSymbolValue

This also make getExprForFDESymbol on ELF equal to the one on MachO, and it
can be made non-virtual.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130634 91177308-0d34-0410-b5e6-96231b3b80d8
f1a5c7ec04002769f1638e64f7439589f0f926e6 30-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Add all the plumbing needed for MC to expand cfi to the old tables in
the final assembly. It is the same technique used when targeting
assemblers that don't support .loc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130587 91177308-0d34-0410-b5e6-96231b3b80d8
a37bd1d02c0e3d93474fdf30352bf4a425cbe25b 30-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Implement MCAsmStreamer::EmitDwarfAdvanceFrameAddr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130585 91177308-0d34-0410-b5e6-96231b3b80d8
0eab5c4d85b4c4bb161bcdd959aa58a6f54415cc 29-Apr-2011 Daniel Dunbar <daniel@zuster.org> MCExpr: Add FindAssociatedSection, which attempts to mirror the 'as' semantics
that associate sections with expressions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130517 91177308-0d34-0410-b5e6-96231b3b80d8
9099813bd50a05c4b2a495e3cea817f49c1372d8 29-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Add an alternative implementation of CIE and FDE emission that outputs them
in the same order as the one in CodeGen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130471 91177308-0d34-0410-b5e6-96231b3b80d8
a0057ca13f06b8de08483c3e3a143a7236c67097 28-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Add the getExprForFDESymbol method that responsible for computing the
expressions used in the FDE to refer to symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130437 91177308-0d34-0410-b5e6-96231b3b80d8
bfa27cc5d72e061a96efbb461864d40bc8089ec2 28-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Add a getExprForPersonalitySymbol method to MCAsmInfo. Use it when
converting the symbol passed to .cfi_personality into bytes is the file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130400 91177308-0d34-0410-b5e6-96231b3b80d8
8bca4106dfc2945723251db10e340183f3e372dd 28-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Mark the EH symbol global or weak if the corresponding function is.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130397 91177308-0d34-0410-b5e6-96231b3b80d8
235b830328586f0eb141f3263a0868166d80f478 28-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Add a small temporary hack for producing identical eh_frame sections on OS X.
This removes one of the main advantages of moving eh_frame to MC, but
makes the transition a lot easier to debug (run md5).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130379 91177308-0d34-0410-b5e6-96231b3b80d8
ed708f9c1facb9928ef2f79503e7030c8f25b00d 27-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Factor a bit of code to MCStreamer::EmitLabel. Keep track of the last
non private symbol. This will be use for handling


On OS X where we have to create a foo.eh symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130305 91177308-0d34-0410-b5e6-96231b3b80d8
ddcdcc88631c6bd4ad43d9198b98bc9a829be036 23-Apr-2011 Jay Foad <jay.foad@gmail.com> Remove unused STL header includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130068 91177308-0d34-0410-b5e6-96231b3b80d8
e8cfbd843d737e1f95c3032c7670c2be3838a6f6 22-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Remove unused argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129955 91177308-0d34-0410-b5e6-96231b3b80d8
3f3bf9387b75f4c932e4c59bd7af719d26ae4b99 18-Apr-2011 Devang Patel <dpatel@apple.com> Reduce clutter in asm output. Do not emit source location as comment for each instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129715 91177308-0d34-0410-b5e6-96231b3b80d8
f4387d9afb9100e181b96b3bca879b940715033d 18-Apr-2011 Eli Friedman <eli.friedman@gmail.com> Make the StringMaps attached to MCContext use the MCContext's allocator;
reduces the number of calls to malloc().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129687 91177308-0d34-0410-b5e6-96231b3b80d8
7a2bdde0a0eebcd2125055e0eacaca040f0b766c 15-Apr-2011 Chris Lattner <sabre@nondot.org> Fix a ton of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
066c2f495ae396ce5335e374c45b1e4ace4f2470 13-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Be consistent about being virtual and returning void in the cfi methods.
Implement the ones that were missing in the asm streamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129413 91177308-0d34-0410-b5e6-96231b3b80d8
5d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962 12-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Remove LastOffset from the asm parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129378 91177308-0d34-0410-b5e6-96231b3b80d8
25f492e77858dc5a95fcd7180e73aff47925b668 12-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129362 91177308-0d34-0410-b5e6-96231b3b80d8
c57543964d1382d3d3a5005f415b6c0f49671b3a 12-Apr-2011 Rafael Espindola <rafael.espindola@gmail.com> Implement .cfi_same_value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129361 91177308-0d34-0410-b5e6-96231b3b80d8
bd3327654b5708f1ba92aff3ab25b1bbf5034797 11-Apr-2011 Kevin Enderby <enderby@apple.com> Adding support for printing operands symbolically to llvm's public 'C'
disassembler API. Hooked this up to the ARM target so such tools as Darwin's
otool(1) can now print things like branch targets for example this:
blx _puts
instead of this:
blx #-36
And even print the expression encoded in the Mach-O relocation entried for
things like this:
movt r0, :upper16:((_foo-_bar)+1234)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129284 91177308-0d34-0410-b5e6-96231b3b80d8
44dcfd36253570ccd5f00189eb918604473135e0 07-Apr-2011 Bill Wendling <isanbard@gmail.com> Replace the old algorithm that emitted the "print the alias for an instruction"
with the newer, cleaner model. It uses the IAPrinter class to hold the
information that is needed to match an instruction with its alias. This also
takes into account the available features of the platform.

There is one bit of ugliness. The way the logic determines if a pattern is
unique is O(N**2), which is gross. But in reality, the number of items it's
checking against isn't large. So while it's N**2, it shouldn't be a massive time

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129110 91177308-0d34-0410-b5e6-96231b3b80d8
c6cf43d25853efb4a6765954eda52a45998a47f2 29-Mar-2011 Daniel Dunbar <daniel@zuster.org> MC: Add support for disabling "temporary label" behavior. Useful for debugging
on Darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128430 91177308-0d34-0410-b5e6-96231b3b80d8
d31d304f83f9c8df6870057509414b8d004bc8da 24-Mar-2011 Jim Grosbach <grosbach@apple.com> Clean up assembly statement separator support.

The MC asm lexer wasn't honoring a non-default (anything but ';') statement
separator. Fix that, and generalize a bit to support multi-character
statement separators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128227 91177308-0d34-0410-b5e6-96231b3b80d8
b9b1e307f2a93d7129680df15b9575638f0aad3e 24-Mar-2011 Jim Grosbach <grosbach@apple.com> Fix comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128182 91177308-0d34-0410-b5e6-96231b3b80d8
65c8bca78854712ab2bf135c2008ed455ef0c9b7 19-Mar-2011 Stuart Hastings <stuart@apple.com> Reapply 127939 since Daniel fixed the breakage. <rdar://problem/9012638>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127944 91177308-0d34-0410-b5e6-96231b3b80d8
825dd969189357cf0e7084e015d938467b0136eb 19-Mar-2011 Stuart Hastings <stuart@apple.com> Revert 127939. <rdar://problem/9012638>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127943 91177308-0d34-0410-b5e6-96231b3b80d8
7257897402fc61df3c494abad27397a100e5f32c 19-Mar-2011 Stuart Hastings <stuart@apple.com> Revise r126127 to address Daniel's comments. <rdar://problem/9012638>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127939 91177308-0d34-0410-b5e6-96231b3b80d8
ba9934648f1b8f5b1749548963f385f1147c1f68 12-Mar-2011 Duncan Sands <baldrick@free.fr> Speculatively revert commit 127478 (jsjodin) in an attempt to fix the
llvm-gcc-i386-linux-selfhost and llvm-x86_64-linux-checks buildbots.
The original log entry:
Remove optimization emitting a reference insted of label difference, since
it can create more relocations. Removed isBaseAddressKnownZero method,
because it is no longer used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127540 91177308-0d34-0410-b5e6-96231b3b80d8
e4f6d7461aea7308e85c219c1cea5bd6059d4841 11-Mar-2011 Jan Sjödin <jan_sjodin@yahoo.com> Remove optimization emitting a reference insted of label difference, since it can create more relocations. Removed isBaseAddressKnownZero method, because it is no longer used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127478 91177308-0d34-0410-b5e6-96231b3b80d8
01dff9646173fea0c38df4471f41272557ca831a 09-Mar-2011 Jan Sjödin <jan_sjodin@yahoo.com> Add constructors to MCElfStreamer and MCObjectStreamer to take an extra MCAssembler * argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127343 91177308-0d34-0410-b5e6-96231b3b80d8
cdc06fa3c7d68b92f56a5a9c537ac159aefc6323 08-Mar-2011 John McCall <rjmccall@apple.com> Typo. Patch by arrowdodger.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127256 91177308-0d34-0410-b5e6-96231b3b80d8
57caad7a33ff145b71545f10dcfbbf2fd0f595d3 05-Mar-2011 Anton Korobeynikov <asl@math.spbu.ru> Preliminary support for ARM frame save directives emission via MI flags.
This is just very first approximation how the stuff should be done
(e.g. ARM-only for now). More to follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127101 91177308-0d34-0410-b5e6-96231b3b80d8
b5e16af9ea04cc1f94ca631104e5e6be96546aa1 05-Mar-2011 Anton Korobeynikov <asl@math.spbu.ru> Some first rudimentary support for ARM EHABI: print exception table in "text mode".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127099 91177308-0d34-0410-b5e6-96231b3b80d8
f754f50805fee2bb4d461a9b41107122a22cd6f6 25-Feb-2011 Cameron Zwarich <zwarich@apple.com> Roll out r126425 and r126450 to see if it fixes the failures on the buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126488 91177308-0d34-0410-b5e6-96231b3b80d8
93c65e6e661eda75711363bdd5ca15909920e1f0 24-Feb-2011 Joerg Sonnenberger <joerg@bec.de> Restore r125595 (reverted in r126336) with modifications:
Introduce a variable in the AsmParserExtension whether [] is valid in an
expression. If it is true, parse them like (). Enable this for ELF only.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126443 91177308-0d34-0410-b5e6-96231b3b80d8
f410608271b6318bfc9e26c0d199f185d5a89ccb 24-Feb-2011 Devang Patel <dpatel@apple.com> Enable DebugInfo support for COFF object files.
Patch by Nathan Jeffords!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126425 91177308-0d34-0410-b5e6-96231b3b80d8
5129bdecd87c518713765acd6998c80f9eef36a2 23-Feb-2011 Stuart Hastings <stuart@apple.com> Omit private_extern declarations of extern symbols; followup to
r124468. Patch by Rafael Avila de Espindola!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126297 91177308-0d34-0410-b5e6-96231b3b80d8
7d0805dcb82e9ba1d90ce8d702169683b9caded7 21-Feb-2011 Joerg Sonnenberger <joerg@bec.de> Use a vector of pairs to implement the section stack, not two
independent vectors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126099 91177308-0d34-0410-b5e6-96231b3b80d8
908159b46ae118d36fccbc1d5145dcedfc3d4185 16-Feb-2011 Rafael Espindola <rafael.espindola@gmail.com> Gas is very inconsistent about when a relaxation/relocation is needed. Do
the right thing and stop trying to copy it. Fixes PR8944.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125648 91177308-0d34-0410-b5e6-96231b3b80d8
7768a9dce14431018133cd586f5c8ce3e057f069 16-Feb-2011 Rafael Espindola <rafael.espindola@gmail.com> Add support for pushsection and popsection. Patch by Joerg Sonnenberger.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125629 91177308-0d34-0410-b5e6-96231b3b80d8
9de3a0701a06505aeab824fdc88f361a5018e473 14-Feb-2011 Rafael Espindola <rafael.espindola@gmail.com> Move broken HasCommonSymbols to ELFWriter.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125490 91177308-0d34-0410-b5e6-96231b3b80d8
e5ec5a41775c6ef1a69070c218fb4b6b4775ca41 11-Feb-2011 Jim Grosbach <grosbach@apple.com> Remove trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125385 91177308-0d34-0410-b5e6-96231b3b80d8
98311ecb4ae9c82baba9e3a48acf756a81c8e9a4 11-Feb-2011 Jim Grosbach <grosbach@apple.com> Remove trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125327 91177308-0d34-0410-b5e6-96231b3b80d8
c67b1a3a76ea6ff642d30610cf63595ccb661e6b 04-Feb-2011 Bob Wilson <bob.wilson@apple.com> Remove trailing whitespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124830 91177308-0d34-0410-b5e6-96231b3b80d8
96aa78c8c5ef1a5f268539c9edc86569b436d573 23-Jan-2011 Rafael Espindola <rafael.espindola@gmail.com> Add support for the --noexecstack option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124077 91177308-0d34-0410-b5e6-96231b3b80d8
1c13026e8f94bd332c0979baa9c777da99d48736 23-Jan-2011 Rafael Espindola <rafael.espindola@gmail.com> Remove more duplicated code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124056 91177308-0d34-0410-b5e6-96231b3b80d8
c85dca66e68c9fa6ffa8471c64113b12d8d94fb1 23-Jan-2011 Rafael Espindola <rafael.espindola@gmail.com> Remove duplicated code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124054 91177308-0d34-0410-b5e6-96231b3b80d8
3965b5e974d57f3e56a2c7f37d76d73e572dfb20 14-Jan-2011 Anton Korobeynikov <asl@math.spbu.ru> Add a possibility to switch between CFI directives- and table-based frame description emission. Currently all the backends use table-based stuff.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123476 91177308-0d34-0410-b5e6-96231b3b80d8
7597212abced110723f2fee985a7d60557c092ec 13-Jan-2011 Evan Cheng <evan.cheng@apple.com> Model :upper16: and :lower16: as ARM specific MCTargetExpr. This is a step
in the right direction. It eliminated some hacks and will unblock codegen
work. But it's far from being done. It doesn't reject illegal expressions,
e.g. (FOO - :lower16:BAR). It also doesn't work in Thumb2 mode at all.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123369 91177308-0d34-0410-b5e6-96231b3b80d8
b2624eda5ad0ead99ec5ab7ead47b586c96d1109 29-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O/Thumb: Set the thumb bit in the symbol table.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122630 91177308-0d34-0410-b5e6-96231b3b80d8
b40a71fda188f8ca564e606ac2cb051a44ada311 29-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. Looks
like 6 is a fixed point of that and so the previous tests were OK :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122614 91177308-0d34-0410-b5e6-96231b3b80d8
fe024d0a624404ada11fb330e7360abc5f88742e 28-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Implement .cfi_remember_state and .cfi_restore_state.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122602 91177308-0d34-0410-b5e6-96231b3b80d8
245a1e20419aa5a3c833d7a8e89168e19d5f4d2c 28-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Relax address updates in the eh_frame section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122591 91177308-0d34-0410-b5e6-96231b3b80d8
5bba08425374ca36fe5fbc7423ce1a09858e4097 28-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Start adding basic support for emitting the call frame instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122590 91177308-0d34-0410-b5e6-96231b3b80d8
bdc3167c086dd4358e24692075db5e7784140843 27-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Add support for .cfi_lsda.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122584 91177308-0d34-0410-b5e6-96231b3b80d8
3a83c40ab61d5ca624f2bbadd70237c6adbdb304 27-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Add support for the same encodings of the personality function that gnu as

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122577 91177308-0d34-0410-b5e6-96231b3b80d8
d7c8ccae8e48dce3ab7c3e9b4d8a309998c47961 26-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Add basic support for .cfi_personality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122566 91177308-0d34-0410-b5e6-96231b3b80d8
fea753b397823c340608925eb7f3256a64a30017 24-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We now
have a single point where targets test if a relocation is needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122549 91177308-0d34-0410-b5e6-96231b3b80d8
90a5a0cd7c353651c953020b1e41b4c6e2f21883 22-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Rename NeedsSetToChangeDiffSize to HasAggressiveSymbolFolding which is a much
better name and matches what is used in the MachO writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122443 91177308-0d34-0410-b5e6-96231b3b80d8
33a38a1b5a35acd15c867193bc2175f3d4e7b83d 22-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Use references and simplify.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122405 91177308-0d34-0410-b5e6-96231b3b80d8
7a45903bf40a023ce96f4da953bb6cb2cb1a1b50 21-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Don't relax org or align. They change size as the relaxation happens, but they
are not actually relaxed. For example, a section with only alignments will never
needs relaxation.

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e1feeb9da41fd48002e363c6dbb0a3d7bf0b7811 21-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrong

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122334 91177308-0d34-0410-b5e6-96231b3b80d8
62b83b62f377ac248038672015dc65970327f786 21-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Layout one section until no relaxations are done and then move to the next

This helps because in practice sections form a dag with debug sections pointing
to text sections. Finishing up the text sections first makes the debug section
relaxation trivial.

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7529b164104f802b59fbf96f5a88d9709ac3ff1a 18-Dec-2010 Roman Divacky <rdivacky@freebsd.org> Add support for lexing single quotes like 'c'.

This fixed 8615.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122150 91177308-0d34-0410-b5e6-96231b3b80d8
3132780a2ed58945b0ec5033002be44bedb6b785 18-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Merge isAbsolute into IsSymbolRefDifferenceFullyResolved.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122148 91177308-0d34-0410-b5e6-96231b3b80d8
1ec5bd31fe491e610839ea448bd99fd171785837 18-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Remove the MCObjectFormat class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122147 91177308-0d34-0410-b5e6-96231b3b80d8
d076482ab7e672d1d65a43809695e8d0d3995203 18-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Revert 122011, 122012, 122013, 122023 adding back an important optimization.
I added a note, but suggestions on how to add a test are really welcome.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122138 91177308-0d34-0410-b5e6-96231b3b80d8
bff66a86e6e44dc7424cd2d7719ac80630b3a5f8 18-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Move some data to the TargetWriter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122134 91177308-0d34-0410-b5e6-96231b3b80d8
6024c97ffa15766bc0f200ffd309d9e017ae0d4b 17-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Stub out explicit MCELFObjectTargetWriter interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122067 91177308-0d34-0410-b5e6-96231b3b80d8
285b3e5b61af15f11e59a7700375aefa2a326bd8 17-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Move createELFObjectWriter to its own header.

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b87422778c4e7b828e6e846b81fd77509439c622 17-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: On second thought, use a custom hook for enabling aggressive
IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on
enough cases for x86-32 that I would rather wait a bit on it.
- In practice, we will want to change this eventually because it only means we
generate less relocations (it also eliminates the need for the horrible
'.set' hack that Darwin requires in some places).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122042 91177308-0d34-0410-b5e6-96231b3b80d8
1f3662abba2abdf5a0ab77095834271fcf846579 17-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC/ObjectWriter: Add a new IsSymbolRefDifferenceFullyResolved target format specific hook.
- Currently just has stub implementations for Mach-O, ELF, and COFF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122037 91177308-0d34-0410-b5e6-96231b3b80d8
5d2477cecf53bef911f57423a5cecb743d4286fa 17-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC/Assembler: Strip out object writer arguments, now that it is always available
-- and remove FIXME asking for the same!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122032 91177308-0d34-0410-b5e6-96231b3b80d8
feb7ba3d9abfa1eb89f6da93c51649baaa931ab8 17-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC/Assembler: Make the MCObjectWriter available through the lifetime of the

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122031 91177308-0d34-0410-b5e6-96231b3b80d8
8f714fedba35bc454ff372f084090f14a25c8933 17-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC/Expr: Simplify.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122023 91177308-0d34-0410-b5e6-96231b3b80d8
2d8e3e741f49baadfc72403de9c4b362a07af8d9 17-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC: Remove another dead MCAssembler argument, and update clients.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122013 91177308-0d34-0410-b5e6-96231b3b80d8
92c66c7bf9533d0ab7cece9532c5060e7d3db6ca 17-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC: Remove dead MCAssembler argument -- Rafael, can you check the FIXME I added

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122012 91177308-0d34-0410-b5e6-96231b3b80d8
f249e5d5d71d50323e7a60af1ee555de14378515 17-Dec-2010 Daniel Dunbar <daniel@zuster.org> Fix 80-col viola.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122010 91177308-0d34-0410-b5e6-96231b3b80d8
5d05d9769ec98cdee359fd934a56c9455e21232b 16-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Lift some MachObjectWriter arguments into the target specific


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121981 91177308-0d34-0410-b5e6-96231b3b80d8
ae5abd595f5442767313a4c8a24008ad19323ceb 16-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Stub out explicit MCMachObjectTargetWriter interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121973 91177308-0d34-0410-b5e6-96231b3b80d8
aa4b7dd13ba83152473950d7014a29686dc7eef6 16-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Move createMachObjectWriter into MCMachObjectWriter.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121971 91177308-0d34-0410-b5e6-96231b3b80d8
2761fc427082215c2affcc9d8db8491400bc9e5d 16-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC: Move target specific fixup info descriptors to TargetAsmBackend instead of
the MCCodeEmitter, which seems like a better organization.
- Also, cleaned up some magic constants while in the area.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121953 91177308-0d34-0410-b5e6-96231b3b80d8
745dacc91d7ee9531bfba76b21beb5d4eef93a7d 16-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC: Make TargetAsmBackend available to the AsmStreamer.
- Treaty talks on the non-proliferation of MC objects broke down.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121949 91177308-0d34-0410-b5e6-96231b3b80d8
1d6547eb49ef46d2606810f0abad2570c41e38bd 16-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC: Split MCFixupKindInfo out into its own header.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121948 91177308-0d34-0410-b5e6-96231b3b80d8
9754ab010e3897457e75cbf0aa74e276fc944174 16-Dec-2010 Daniel Dunbar <daniel@zuster.org> MC: Remove a FIXME I no longer agree with.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121947 91177308-0d34-0410-b5e6-96231b3b80d8
47dbd429daefa9b3f19347194ddfb6f69642465e 15-Dec-2010 Owen Anderson <resistor@mac.com> Implement cleanups suggested by Daniel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121875 91177308-0d34-0410-b5e6-96231b3b80d8
2bf6afc277edb32b1d940def5b3eb0e0d32a22b9 15-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Relax alignment fragments.

With this we don't need the EffectiveSize field anymore. Without that field
LayoutFragment only updates offsets and we don't need to invalidate the
current fragment when it is relaxed (only the ones following it).

This is also a very small improvement in the accuracy of the layout info as
we now use the after relaxation size immediately.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121857 91177308-0d34-0410-b5e6-96231b3b80d8
475002078848d102b6577fe7283464c039b38af6 14-Dec-2010 Jim Grosbach <grosbach@apple.com> ARM Fixups relative to thumb functions need to have the low bit of the value
set for interworking to work properly. rdar://8755956

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121778 91177308-0d34-0410-b5e6-96231b3b80d8
89b9372605db2ce3b0085c84089e389f7bc1fbdd 10-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Fixed version of 121434 with no new memory leaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121471 91177308-0d34-0410-b5e6-96231b3b80d8
f7fd4aa2610f46467369de07f3ec669561d79be0 10-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Revert my previous patch to make the valgrind bots happy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121461 91177308-0d34-0410-b5e6-96231b3b80d8
1c952b9cc98e84b28f68f0f6cf11197263f89863 10-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Initial support for the cfi directives. This is just enough to get


assembled (on ELF).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121434 91177308-0d34-0410-b5e6-96231b3b80d8
05018c2f2872a05b1a2fff1a9934621ba1f38084 09-Dec-2010 Owen Anderson <resistor@mac.com> Fix an issue in some Thumb fixups, where the effective PC address needs to be 4-byte aligned when calculating
the offset. Add a new fixup flag to represent this, and use it for the one fixups that I have a testcase for needing
this. It's quite likely that the other Thumb fixups will need this too, and to have their fixup encoding logic
adjusted accordingly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121408 91177308-0d34-0410-b5e6-96231b3b80d8
4f4363a490721fe6e4f275193e783f77fa631ef2 08-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Layout each section independently. With the testcase in PR8711:

4 assembler - Number of assembler layout and relaxation steps
78563 assembler - Number of emitted assembler fragments
8693904 assembler - Number of emitted object file bytes
271223 assembler - Number of evaluated fixups
330771677 assembler - Number of fragment layouts
5958 assembler - Number of relaxed instructions
2508361 mcexpr - Number of MCExpr evaluations

real 0m26.123s
user 0m25.694s
sys 0m0.388s


4 assembler - Number of assembler layout and relaxation steps
78563 assembler - Number of emitted assembler fragments
8693904 assembler - Number of emitted object file bytes
271223 assembler - Number of evaluated fixups
231507 assembler - Number of fragment layouts
5958 assembler - Number of relaxed instructions
2508361 mcexpr - Number of MCExpr evaluations

real 0m2.500s
user 0m2.113s
sys 0m0.273s

And yes, the outputs are identical :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121207 91177308-0d34-0410-b5e6-96231b3b80d8
85f2ecc697a8ca6c8cf08093054cbbb9d2060ccf 07-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Sorry for such a large commit. The summary is that only MachO cares about the
actuall addresses in a .o file, so it is better to let the MachO writer compute

This is good for two reasons. First, areas that shouldn't care about
addresses now don't have access to it. Second, the layout of each section
is independent. I should use this in a subsequent commit to speed it up.

Most of the patch is just removing the section address computation. The two
interesting parts are the change on how we handle padding in the end
of sections and how MachO can get the address of a-b when a and b are in
different sections.

Since now the expression evaluation normally doesn't know the section address,
it will think that a-b needs relocation and let the MachO writer know. Once
it has computed the section addresses, it calls back the expression evaluation
with the section addresses to resolve these expressions.

The remaining problem is the handling of padding. Currently it will create
a special alignment fragment at the end. Since that fragment doesn't update
the alignment of the section, it needs the real address to be computed.

Since now the layout will not compute a-b with a and b in different sections,
the only effect that the special alignment fragment has is update the
address size of the section. This can also be done by the MachO writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121076 91177308-0d34-0410-b5e6-96231b3b80d8
22373b230a053a154f6c7792c6a33d4f78f5479d 06-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Use references to simplify the code a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121050 91177308-0d34-0410-b5e6-96231b3b80d8
179821ac1f282ef6f8d24d5ea346028aee8ba4c7 06-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Remove the instruction fragment to data fragment lowering since it was causing
freed data to be read. I will open a bug to track it being reenabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121028 91177308-0d34-0410-b5e6-96231b3b80d8
0bbe0b440ee2cef47dcb7b281825eb70341c16dd 06-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Second try at making direct object emission produce the same results
as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121006 91177308-0d34-0410-b5e6-96231b3b80d8
6d86492f5ed0f9853ddd3b24e1aa037e305e1784 06-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Revert previous two patches while I try to find out how to make both
linux and darwin assemblers happy :-(

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121004 91177308-0d34-0410-b5e6-96231b3b80d8
2303c9dd69476d045af7cee94e112dd77d22fd28 06-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Add an EmitAbsValue helper method and use it in cases where we want to be sure
that no relocations are used (on MochO).
Fixes llc producing different output from llc + llvm-mc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121000 91177308-0d34-0410-b5e6-96231b3b80d8
f8803fe4177739f9a6900198f601808eb27934d9 06-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Remove the getAddress getter, initialize Ordinal in the constructor and use
that on the ELF writer to detect a section we created.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120981 91177308-0d34-0410-b5e6-96231b3b80d8
ffd902bfb743f0564c8f7689c49403074b6f694d 06-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Add a getSymbolOffset method and use it in the ELF writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120977 91177308-0d34-0410-b5e6-96231b3b80d8
db74aeadcd1b9a597ad0f80c0036e67e63ba20ed 04-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Remember the contents of leb and dwarfline fragments when relaxing. This avoids
having to evaluate the expression again when writing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120920 91177308-0d34-0410-b5e6-96231b3b80d8
5d4918dbd116b0b5e561c431b1ea527ee1b9302a 04-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> There are two reasons why we might want to use

foo = a - b
.long foo
instead of just
.long a - b

First, on darwin9 64 bits the assembler produces the wrong result. Second,
if "a" is the end of the section all darwin assemblers (9, 10 and mc) will not
consider a - b to be a constant but will if the dummy foo is created.

Split how we handle these cases. The first one is something MC should take care
of. The second one has to be handled by the caller.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120889 91177308-0d34-0410-b5e6-96231b3b80d8
767b1be3900bdc693aa0ad3e554ba034845f67f7 04-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Next step: Only pad debug_line when the target is darwin. Add a FIXME to avoid
doing that if the target is darwin10 or newer.

This fixes
*) Direct object emission was producing objects without the workaround on
*) Assembly printing was producing objects with the workaround on linux.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120866 91177308-0d34-0410-b5e6-96231b3b80d8
2df042cb32ecb8d2e1d499dfa27d5074c8b40e13 03-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Make EmitIntValue more efficient and more like what we do for leb128. The
difference is much smaller (about 0.3s) but significant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120787 91177308-0d34-0410-b5e6-96231b3b80d8
32a006e606742b1c5401e49607e33717bb5441f0 03-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Try to resolve symbol differences early, and if successful create a plain
data fragment. This reduces the time to assemble the test in 8711 from 60s to

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120767 91177308-0d34-0410-b5e6-96231b3b80d8
5113cdbfff7df4c7a79a92e5aa971126254202c6 03-Dec-2010 Devang Patel <dpatel@apple.com> It may not be an option to skip .debug_line if there are file reference in already emitted debug info. So, for now, emit dummy line table entry to make older linker and assemblers happy. This is not a new behavior, original AsmPrinter emitted similar line table entries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120760 91177308-0d34-0410-b5e6-96231b3b80d8
ee4854faf3a4dc622dcb75fe352e33fb32385b3f 02-Dec-2010 Devang Patel <dpatel@apple.com> Use set directive for StartMinusEndExpr.
This is a fix for llvm-gcc-i386-darwin9 buildbot failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120742 91177308-0d34-0410-b5e6-96231b3b80d8
e23930543c0de0adcfec00cd18e9243ad812a167 02-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Move EmitValueToOffset to the ObjectStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120691 91177308-0d34-0410-b5e6-96231b3b80d8
dedb045c3296c831962c4ae101531c38c273ba89 02-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Add EmitInstToFragment to the generic object streamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120690 91177308-0d34-0410-b5e6-96231b3b80d8
6db8a9f3fabefeb00163295f0611d09134651f3f 02-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> The sections that the ELF object writer has to create are very simple and
contain only data. Handle them specially instead of using AddSectionToTheEnd.
This moves a hack from the generic assembler to the elf writer. It is also
a bit faster and should make other improvements easier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120683 91177308-0d34-0410-b5e6-96231b3b80d8
ec99c90ea54806ae59eb8ea7686e201ed7eb0d29 02-Dec-2010 Chris Lattner <sabre@nondot.org> tidy up

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120644 91177308-0d34-0410-b5e6-96231b3b80d8
6a13ddbd9b2159303996db44db6045730d0fe479 02-Dec-2010 Devang Patel <dpatel@apple.com> If tehre are not any line entry then do not try to emit .debug_line section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120637 91177308-0d34-0410-b5e6-96231b3b80d8
6566e0a55e3d9403f77db81a79a5dadedb4e666e 01-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Remove unused argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120621 91177308-0d34-0410-b5e6-96231b3b80d8
9f44724be058d17944dcd9ef6a6b57734b3744b8 01-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Rename temporary symbols if they conflict with artificial symbols created
by the assembler. This was blocking parsing any large .s produced by clang for

Fixes PR8596.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120603 91177308-0d34-0410-b5e6-96231b3b80d8
1f6efa3996dd1929fbc129203ce5009b620e6969 29-Nov-2010 Michael J. Spencer <bigcheesegs@gmail.com> Merge System into Support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
ec0b428398c5fb91fdce5d3d003ab0e4b75b5d6a 29-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Make EmitIntValue non virtual.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120271 91177308-0d34-0410-b5e6-96231b3b80d8
6f95023a7f27075011a6eb7b84e03732b00a785b 29-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Move EmitValue to MCObjectStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120269 91177308-0d34-0410-b5e6-96231b3b80d8
ea4afa91eb453323948588ad1e1706d842fb9007 28-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Fixed verson of r120245.
Factor some duplicated code into MCObjectStreamer::EmitLabel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120248 91177308-0d34-0410-b5e6-96231b3b80d8
ba210243ef7d325ef6954d459091edf580a241f9 28-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Revert previous patch while I debug the darwin bootstrap failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120246 91177308-0d34-0410-b5e6-96231b3b80d8
f90a2de72c25e24f26577b0dd8145ac21fe10f5e 28-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Factor some duplicated code into MCObjectStreamer::EmitLabel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120245 91177308-0d34-0410-b5e6-96231b3b80d8
175ccab75f3a355285cf4533c201cbcecfd5928d 28-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Make EmitSymbolValue non virtual.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120244 91177308-0d34-0410-b5e6-96231b3b80d8
3e03211625bba5bbb70a193c140ebf4dd8388bb7 28-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Avoid code duplication in the many unsupported EmitGPRel32Value implementations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120243 91177308-0d34-0410-b5e6-96231b3b80d8
71e7f9210d87fa29202d851c43b5e91bbbd2fa51 28-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Make EmitULEB128IntValue and EmitSLEB128IntValue non virtual.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120242 91177308-0d34-0410-b5e6-96231b3b80d8
e04ed7e45f194f14a7b28bbf3f55694d8e2bcf80 28-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Define generic 1, 2 and 4 byte pc relative relocations. They are common
and at least the 4 byte one will be needed to implement the .cfi_* directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120240 91177308-0d34-0410-b5e6-96231b3b80d8
326990f1eb7ff005adabe46a1f982eff8835813e 26-Nov-2010 Michael J. Spencer <bigcheesegs@gmail.com> Fix Whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120166 91177308-0d34-0410-b5e6-96231b3b80d8
a9d4281cc0557ef679b7917e0741ddb01651dab1 23-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Invalidate the layout on any relaxation, not just Instructions. Bug found by David Meyer.
While here, remove unused argument and rename UpdateForSlide to Invalidate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120009 91177308-0d34-0410-b5e6-96231b3b80d8
0e11dfc4a6f7e3a3d3bc0365e1da43bc2fa0aac2 23-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Reuse data fragments while lowering. Patch by David Meyer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119999 91177308-0d34-0410-b5e6-96231b3b80d8
cdfecc8759941c2996214070478d30084b79d463 22-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Add basic CFI methods to the streamer interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119972 91177308-0d34-0410-b5e6-96231b3b80d8
ad8aaa069cfdb3bdc32b1becc8881f67b5272e14 22-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Remove some #includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119967 91177308-0d34-0410-b5e6-96231b3b80d8
e8e98d7f2eaa0613442ce21ab6a040c0f04f5b4d 19-Nov-2010 Kevin Enderby <enderby@apple.com> Added support for the Mach-O .symbol_resolver directive. rdar://8673046

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119816 91177308-0d34-0410-b5e6-96231b3b80d8
17fd7bda5ac08f873c063c64e1456f8960a0c765 19-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Add a MCLineSectionOrder vector so that we produce the line tables in a
deterministic order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119795 91177308-0d34-0410-b5e6-96231b3b80d8
195a0ce484cd12a5adae9184188f6d0fb52b84c0 19-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Change some methods in MCDwarf.cpp to be able to handle an arbitrary
MCStreamer instead of just MCObjectStreamer. Address changes cannot
be as efficient as we have to use DW_LNE_set_addres, but at least
most of the logic is shared.

This will be used so that, with CodeGen still using EmitDwarfLocDirective,
llvm-gcc is able to produce debug_line sections without needing an
assembler that supports .loc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119777 91177308-0d34-0410-b5e6-96231b3b80d8
5c0556341e29246e697c73844a5f9b1e14474715 18-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Change CodeGen to use .loc directives. This produces a lot more readable output
and testing is easier. A good example is the unknown-location.ll test that
now can just look for ".loc 1 0 0". We also don't use a DW_LNE_set_address for
every address change anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119613 91177308-0d34-0410-b5e6-96231b3b80d8
f2dc4aa562e2478a73fe5aeeeec16b1e496a0642 17-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> make isVirtualSection a virtual method on MCSection. Chris' suggestion.

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abc756216dbace87826398f8fa1e8e57e401cc86 17-Nov-2010 Daniel Dunbar <daniel@zuster.org> MC-JIT: Stub out "pure" streamer.
- No immediate use, but maybe someone feels like hacking on it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119510 91177308-0d34-0410-b5e6-96231b3b80d8
af6b5808756d6ce335df9eb158efa33894b401c4 16-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Add .loc methods to the streamer.

Next: Add support for the !HasDotLocAndDotFile case to the MCAsmStreamer
and then switch codegen to use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119384 91177308-0d34-0410-b5e6-96231b3b80d8
342e39f9e55d3f4465748c9ab84bf27df7a92478 16-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Add const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119380 91177308-0d34-0410-b5e6-96231b3b80d8
94ed5fca3f5ab5acb74e70b8393b837131e7110c 15-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Change MCExpr::EvaluateAsRelocatableImpl of variables to return the original
variable if recursing fails to simplify it.

Factor AliasedSymbol to be a method of MCSymbol.

Update MCAssembler::EvaluateFixup to match the change in

Remove the WeakRefExpr hack, as the object writer now sees the weakref with
no extra effort needed.

Nothing else is using MCTargetExpr, but keep it for now.

Now that the ELF writer sees relocations with aliases, handle

.weak foo2
.weak bar2
.set bar2,foo2
.quad bar2

the same way gas does and produce a relocation with bar2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119152 91177308-0d34-0410-b5e6-96231b3b80d8
db9835d0895337eb94c19e3a30b7d3fc8fcddfd5 15-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Fix PR8565.

This moves most of the isUsed logic to the MCSymbol itself. With this we
get a bit more relaxed about allowing definitions after uses: uses that
don't evaluate their argument immediately (jmp foo) are accepted.

ddunbar, this was the smallest compromise I could think of that lets us
accept gcc (and clang!) assembly.

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1e61e69d401045c54b15815f15a0fdb3ca56a9b5 15-Nov-2010 Chris Lattner <sabre@nondot.org> add targetoperand flags for jump tables, constant pool and block address
nodes to indicate when ha16/lo16 modifiers should be used. This lets
us pass PowerPC/indirectbr.ll.

The one annoying thing about this patch is that the MCSymbolExpr isn't
expressive enough to represent ha16(label1-label2) which we need on
PowerPC. I have a terrible hack in the meantime, but this will have
to be revisited at some point.

Last major conversion item left is global variable references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119105 91177308-0d34-0410-b5e6-96231b3b80d8
6135a96792ca05f6366e5dbaee6208e84589c47f 14-Nov-2010 Chris Lattner <sabre@nondot.org> reimplement ppc asmprinter "toc" handling to use a VariantKind
on the operand, required for .o file writing and fixing
the PowerPC/mult-alt-generic-powerpc64.ll failure with the new

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119087 91177308-0d34-0410-b5e6-96231b3b80d8
115a3dd066c277c5417f4d9b9f642b732b76f4e7 13-Nov-2010 Daniel Dunbar <daniel@zuster.org> MC: Simplify Mach-O and ELF object writer implementations.
- What was I thinking?????

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118992 91177308-0d34-0410-b5e6-96231b3b80d8
e13a0ff8ac6c86a04397801061e1a702d4e0eab1 13-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Parse and record the gnu_unique_object type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118980 91177308-0d34-0410-b5e6-96231b3b80d8
c50a0fd7cb6da0e674e154205da65241f9c90e1d 13-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Parse and remember discriminators in .loc line. I try to output them with
another patch.
This lets us parse a bit more of the gcc 4.5 output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118975 91177308-0d34-0410-b5e6-96231b3b80d8
2ff9e83a826c1c2ee0f1c6072d3d97d5b10678ee 11-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Initial comdat implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118805 91177308-0d34-0410-b5e6-96231b3b80d8
4283f4b81e8c1cbf5c7a7b51e949e109ae25ff8c 10-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Use MCSectionELF in places we know we have an ELF section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118699 91177308-0d34-0410-b5e6-96231b3b80d8
2c4d5125c708bb35140fc2a40b02beb1add101db 10-Nov-2010 Jim Grosbach <grosbach@apple.com> Update ARMConstantPoolValue to not use a modifier string. Use an explicit
VariantKind marker to indicate the additional information necessary. Update
MC to handle the new Kinds. rdar://8647623

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118671 91177308-0d34-0410-b5e6-96231b3b80d8
34be396a12b00a95a1353c356d64868798ea3098 10-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Fixed version of 118639 with an extra assert to catch similar problems
earlier. Implicit bool -> int conversions are evil!

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037b5be15a421b99066bb284027750a16ddd0fae 09-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Revert previous patch. Missed a case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118645 91177308-0d34-0410-b5e6-96231b3b80d8
e61a1ac595deddd291912930efac3616f7c61d08 09-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Remove IsExplicit. It was always false.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118639 91177308-0d34-0410-b5e6-96231b3b80d8
187d8339dbc0530850e54a86edf36f1a865a5823 07-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Relax dwarf line fragments. This fixes a crash in the included testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118365 91177308-0d34-0410-b5e6-96231b3b80d8
ba21957cbd7b25e3d25a3e9befe6151000242853 05-Nov-2010 Jim Grosbach <grosbach@apple.com> Add '.code 32' assembler directive to MC streamers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118309 91177308-0d34-0410-b5e6-96231b3b80d8
ce79299f78bb04e76e1860ab119b85d69f3a19c7 05-Nov-2010 Jim Grosbach <grosbach@apple.com> MC'ize the '.code 16' and '.thumb_func' ARM directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118301 91177308-0d34-0410-b5e6-96231b3b80d8
d54986f6092ac23dd02c0edf5fc85f692edcc72d 05-Nov-2010 Jim Grosbach <grosbach@apple.com> Trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118296 91177308-0d34-0410-b5e6-96231b3b80d8
c9d1439051d130cfb947ef9ab4a95737c41e2fd1 05-Nov-2010 Jim Grosbach <grosbach@apple.com> Allow targets to specify the MachO CPUType/CPUSubtype information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118288 91177308-0d34-0410-b5e6-96231b3b80d8
187ce544b2c6fa5ee6545390f2d07bc471e4159b 02-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Do relaxations with FT_Org fragments. Fixes the FIXME:

// FIXME: We should compute this sooner, we don't want to recurse here, and
// we would like to be more functional.

In MCAssembler::ComputeFragmentSize.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118080 91177308-0d34-0410-b5e6-96231b3b80d8
3ff57094a7d176a759ddb1e1668489d89064f56c 02-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Add support for expressions in .sleb/.uleb directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118023 91177308-0d34-0410-b5e6-96231b3b80d8
f89671d994ba27e2816a7e49eb8bbc1b43d2a147 01-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Move EmitInstruction to MCObjectStreamer so that ELF and MachO can share it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117925 91177308-0d34-0410-b5e6-96231b3b80d8
484291c27319668ad99cb87def000254357736fb 01-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Implement .weakref.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117911 91177308-0d34-0410-b5e6-96231b3b80d8
b4d1721eff7b43577e5f2e53f885973fb6c43683 28-Oct-2010 Rafael Espindola <rafael.espindola@gmail.com> Implement TLSLD.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117547 91177308-0d34-0410-b5e6-96231b3b80d8
0cf15d61b7e3bf53f5a99f58ada37b93bc039559 28-Oct-2010 Rafael Espindola <rafael.espindola@gmail.com> Implement DTPOFF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117546 91177308-0d34-0410-b5e6-96231b3b80d8
a264f72d3fb9dec1427480fcf17ef3c746ea723a 28-Oct-2010 Rafael Espindola <rafael.espindola@gmail.com> Implement TLSLDM.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117544 91177308-0d34-0410-b5e6-96231b3b80d8
a0a2f8734cdfc19d44201b791a969bcdda96bb70 28-Oct-2010 Rafael Espindola <rafael.espindola@gmail.com> Implement VK_GOTNTPOFF and switch RelocNeedsGOT to use VariantKind.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117543 91177308-0d34-0410-b5e6-96231b3b80d8
eecb858ca86fa949c06f819d6127e2ac68d165c8 22-Oct-2010 Wesley Peck <peckw@wesleypeck.com> Making the e_machine configurable by the target backend in ELFObjectWriter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117099 91177308-0d34-0410-b5e6-96231b3b80d8
b5a2d3f8e3b40c3076d03c5db7c4f0387e58b53b 19-Oct-2010 Chandler Carruth <chandlerc@gmail.com> Move the definition of this to the source file to anchor the vtable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116779 91177308-0d34-0410-b5e6-96231b3b80d8
1be4ab681e086ec83e96d543d37e3474ef400282 19-Oct-2010 Chandler Carruth <chandlerc@gmail.com> Add a virtual destructor to silence a GCC warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116766 91177308-0d34-0410-b5e6-96231b3b80d8
f230df9af4012f9510de664b6d62b128e26a5861 16-Oct-2010 Rafael Espindola <rafael.espindola@gmail.com> Add a MCObjectFormat class so that code common to all targets that use a
single object format can be shared.

This also adds support for

mov zed+(bar-foo), %eax

on ELF and COFF targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116675 91177308-0d34-0410-b5e6-96231b3b80d8
82635f080c14ee0b979916ffb34f0c8daf08f78c 12-Oct-2010 Jim Grosbach <grosbach@apple.com> Comment grammar tweakage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116322 91177308-0d34-0410-b5e6-96231b3b80d8
17b443df4368acfad853d09858c033c45c468d5c 12-Oct-2010 Jason W Kim <jason.w.kim.2009@gmail.com> Second set of ARM/MC/ELF changes.

Added ARM specific ELF section types.
Added AttributesSection to ARMElfTargetObject
First step in unifying .cpu assembly tag with ELF/.o
llc now asserts on actual ELF emission on -filetype=obj :-)

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60cb528246dd01b80b1b1260a2a877ea488e620a 11-Oct-2010 Chris Lattner <sabre@nondot.org> Per discussion with Sanjiv, remove the PIC16 target from mainline. When/if
it comes back, it will be largely a rewrite, so keeping the old codebase
in tree isn't helping anyone.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116190 91177308-0d34-0410-b5e6-96231b3b80d8
6313944845265dbf38e68046a047d78162f5b89e 08-Oct-2010 Jim Grosbach <grosbach@apple.com> Allow << streaming of MCOperand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116107 91177308-0d34-0410-b5e6-96231b3b80d8
069594a94f485729e82aec29d2e8d16eb47744fa 07-Oct-2010 Jim Grosbach <grosbach@apple.com> Add output stream operator for MCInst.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115974 91177308-0d34-0410-b5e6-96231b3b80d8
4778643912832bc8118eace1aee16554117a8eef 06-Oct-2010 Michael J. Spencer <bigcheesegs@gmail.com> Cleanup Whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115829 91177308-0d34-0410-b5e6-96231b3b80d8
8f413fa9c00dbaea000ddfe265ab5edd285ea3ab 05-Oct-2010 Rafael Espindola <rafael.espindola@gmail.com> On ELF we need to know which symbols are used in relocations to decide if
they should be in the symbol table or not. Instead of "guessing", just compute
the symbol table after the relocations are known.

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3f55c24df9527de345f6cc960944840a7a101c6a 04-Oct-2010 Kevin Enderby <enderby@apple.com> Incorporate suggestions by Daniel Dunbar after his review. Thanks Daniel!

1) Changed ValidateDwarfFileNumber() to isValidDwarfFileNumber() to be better
named. Since it is just a predicate and isn't actually changing any state.

2) Added a missing return in the comments for setCurrentDwarfLoc() in
include/llvm/MC/MCContext.h for fix formatting.

3) Changed clearDwarfLocSeen() to ClearDwarfLocSeen() since it does change

4) Simplified the last test in isValidDwarfFileNumber() to just a one line
boolean test of MCDwarfFiles[FileNumber] != 0 for the final return statement.

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083cf1574facc9ce468fba1735c794bd7e520108 04-Oct-2010 Jan Wen Voung <jvoung@google.com> Add hook in MCSection to decide when to use "optimized nops", for each
section kind. Previously, optimized nops were only used for MachO.
Also added tests for ELF and COFF.

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3bb435301a2b5c901a993b0e151d05b596697038 30-Sep-2010 Kevin Enderby <enderby@apple.com> Did my commit for the last patch for the .loc directory from the wrong place and
missed a bunch of files. Here the rest. Sorry about that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115173 91177308-0d34-0410-b5e6-96231b3b80d8
186e7a0fb1b2028e4fa9c3efe29d9433c91b3f66 30-Sep-2010 Jan Wen Voung <jvoung@google.com> Move logic of determining ELF entsize from the .s printer to initialization
time. That way, the EntrySize field is initialized for other code paths,
namely, the .ll -> .o code path.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115141 91177308-0d34-0410-b5e6-96231b3b80d8
afd1cc25786f68ca56a63d29ea2bd297990e9f81 30-Sep-2010 Jason W Kim <jason.w.kim.2009@gmail.com> Tiny patch for proof-of-concept cleanup of ARMAsmPrinter::EmitStartOfAsmFile()
Small test for sanity check of resulting ARM .s file.
Tested against -r115129.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115133 91177308-0d34-0410-b5e6-96231b3b80d8
7070387f08f7dc797b554ed8013cba9f8b74121a 30-Sep-2010 Rafael Espindola <rafael.espindola@gmail.com> Make it possible for the MCObjectWriter to decide if a given fixup is fully
resolved or not. Different object files have different restrictions and
different native assemblers have different idiosyncrasies we want to emulate
for now.

Move the existing MachO logic to the new place and implement an ELF one that
gets fixups to globals right.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115131 91177308-0d34-0410-b5e6-96231b3b80d8
4f2afe3d399eb9485dc605f3cc3a6382dcae757a 27-Sep-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Handle exponents in floating point literals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114861 91177308-0d34-0410-b5e6-96231b3b80d8
b814110612024a092fd884050fbab9d012b16dc7 27-Sep-2010 Rafael Espindola <rafael.espindola@gmail.com> Remove unused argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114852 91177308-0d34-0410-b5e6-96231b3b80d8
54f0a625b0eb9afeece652a8462755010d237c78 24-Sep-2010 Daniel Dunbar <daniel@zuster.org> MC/Lexer: Add 'Real' token type for floating point literals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114718 91177308-0d34-0410-b5e6-96231b3b80d8
f10dfa910def9cdca566edbd6d2089b075a57b21 23-Sep-2010 Jim Grosbach <grosbach@apple.com> trailing whitespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114680 91177308-0d34-0410-b5e6-96231b3b80d8
637d89fe0eca4fa2b9c95f6c15eb69a99bae83bc 23-Sep-2010 Jim Grosbach <grosbach@apple.com> Add support for ELF PLT references for ARM MC asm printing. Adding a
new VariantKind to the MCSymbolExpr seems like overkill, but I'm not sure
there's a more straightforward way to get the printing difference captured.
(i.e., x86 uses @PLT, ARM uses (PLT)).

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59ff3c913449402ad5447bbe3ae6338402fb84b0 23-Sep-2010 Rafael Espindola <rafael.espindola@gmail.com> Avoid some Mach-O specific alignment being done on ELF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114594 91177308-0d34-0410-b5e6-96231b3b80d8
e07b75e069969558c3fbb2f5bfb9a652f6ea1d6b 23-Sep-2010 Chris Lattner <sabre@nondot.org> allow target-specific label suffixes, patch by Yuri Gribov!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114592 91177308-0d34-0410-b5e6-96231b3b80d8
fd2eaed4f0a9375071a448993c573a124370ed34 17-Sep-2010 Jim Grosbach <grosbach@apple.com> trailing whitespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114211 91177308-0d34-0410-b5e6-96231b3b80d8
6dbe29e34e0017dac703f951429964d9c95b528c 16-Sep-2010 Jim Grosbach <grosbach@apple.com> make this non brain dead...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114100 91177308-0d34-0410-b5e6-96231b3b80d8
dc01b2e1df93b02bcee8457a91ab66e4110a599a 16-Sep-2010 Jim Grosbach <grosbach@apple.com> Remove unnecessary by-reference return.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114099 91177308-0d34-0410-b5e6-96231b3b80d8
a8e47b3319db56675f8e80f4bb015c163110b902 16-Sep-2010 Jim Grosbach <grosbach@apple.com> store MC FP immediates as a double instead of as an APFloat, thus avoiding an
unnecessary dtor for MCOperand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114064 91177308-0d34-0410-b5e6-96231b3b80d8
d80781b98b771d370730ab7c630018f23e202b57 15-Sep-2010 Rafael Espindola <rafael.espindola@gmail.com> Add a InitSections method to the streamer interface.

The ELF implementation now creates text, data and bss to match the gnu as

The text streamer still has the old MachO specific behavior since
the testsuite checks that it will error when a directive is given
before a setting the current section for example.

A nice benefit is that -n is not required anymore when producing
ELF files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114027 91177308-0d34-0410-b5e6-96231b3b80d8
26edbcb8d5da5fb65816a97f740c9868fa798df4 15-Sep-2010 Jim Grosbach <grosbach@apple.com> Add support for floating point immediates to MC instruction printing. ARM
VFP instructions use it for loading some constants, so implement that

Not thrilled with adding a member to MCOperand, but not sure there's much of
a better option that's not pretty fragile (like putting a double in the
union instead and just assuming that's good enough). Suggestions welcome...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113996 91177308-0d34-0410-b5e6-96231b3b80d8
0dd2c9331887b9d0aa06b1e201c5eda4361365fc 15-Sep-2010 Jim Grosbach <grosbach@apple.com> trailing whitespace and 80 column cleanup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113977 91177308-0d34-0410-b5e6-96231b3b80d8
cbf8a98c7c652e96967623c80cb945fef001b090 11-Sep-2010 Chris Lattner <sabre@nondot.org> fix the asmparser so that the target is responsible for skipping to
the end of the line on a parser error, allowing skipping to happen
for syntactic errors but not for semantic errors. Before we would
miss emitting a diagnostic about the second line, because we skipped
it due to the semantic error on the first line:

foo %eax
bar %al

This fixes rdar://8414033 - llvm-mc ignores lines after an invalid instruction mnemonic errors

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113688 91177308-0d34-0410-b5e6-96231b3b80d8
5baf79edc067a4b17d024cc10324ac88c17e3e43 09-Sep-2010 Roman Divacky <rdivacky@freebsd.org> Make ELF OS ABI dependent on the OS from target triple.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113508 91177308-0d34-0410-b5e6-96231b3b80d8
1674b0b0e4972b844833f253286cbf99a6e99d6e 02-Sep-2010 Benjamin Kramer <benny.kra@googlemail.com> Add AsmParser support for the ELF .previous directive. Patch by Roman Divacky.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112849 91177308-0d34-0410-b5e6-96231b3b80d8
b1fcfbe89bd155fb88485b2a3a995adba3994003 02-Sep-2010 Devang Patel <dpatel@apple.com> Fix .debug_range for linux. Patch by Krister Wombell.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112830 91177308-0d34-0410-b5e6-96231b3b80d8
ae84d5b9bafd1ba88aa12e8398e5385f229fa306 01-Sep-2010 Devang Patel <dpatel@apple.com> Use absolute label for DW_AT_stmt_list if a target does not prefer offset here.
This patch was developed on top of original patch by Artur Pietrek.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112678 91177308-0d34-0410-b5e6-96231b3b80d8
47b7efc0828d9587613b2f2865a6d07ed55c5bec 01-Sep-2010 Benjamin Kramer <benny.kra@googlemail.com> Remove noisy semicolon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112673 91177308-0d34-0410-b5e6-96231b3b80d8
232ab949d5ed04c4ab45c763e0597fc3fc3fa5bc 01-Sep-2010 Kevin Enderby <enderby@apple.com> This is the second of three patches to implement support for the .loc directive
and output the dwarf line number tables. This takes the current loc info after
an instruction is assembled and saves the needed info into an object that has
vector and for each section. These objects will be used for the final patch to
build and emit the encoded dwarf line number tables. Again for now this is only
in the Mach-O streamer but at some point will move to a more generic place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112668 91177308-0d34-0410-b5e6-96231b3b80d8
c1840b3da25222680b51f853697a871fedda51d5 24-Aug-2010 Kevin Enderby <enderby@apple.com> First bit of support for the dwarf .loc directive. This patch updates the
needed parsing for the .loc directive and saves the current info from that
into the context. The next patch will take the current loc info after an
instruction is assembled and save that info into a vector for each section for
use to build the line number tables. The patch after that will encode the info
from those vectors into the output file as the dwarf line tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111956 91177308-0d34-0410-b5e6-96231b3b80d8
da0bfcdaf95d95a66e306ef6d45f638939272d34 21-Aug-2010 Michael J. Spencer <bigcheesegs@gmail.com> MC: Add partial x86-64 support to COFF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111728 91177308-0d34-0410-b5e6-96231b3b80d8
d7343ddce500c8043a58dd50cac6127ba7d9d9a3 17-Aug-2010 Anton Korobeynikov <asl@math.spbu.ru> Add some win64 coff goodness.
Patch by Cameron Esfahani!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111287 91177308-0d34-0410-b5e6-96231b3b80d8
73c32f60c41f5078d5b460e3e7c23e40ab7e3e55 17-Aug-2010 Benjamin Kramer <benny.kra@googlemail.com> Revert r111230, we have to find a better place for the host-specific code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111232 91177308-0d34-0410-b5e6-96231b3b80d8
8466efc36f57ec24fc42f91d70d5a70f38690a48 17-Aug-2010 Benjamin Kramer <benny.kra@googlemail.com> Micro-optimize MCObjectWriter to do a byteswap if necessary and then write the
whole integer to the stream instead of doing byte-sized writes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111230 91177308-0d34-0410-b5e6-96231b3b80d8
3565a06ebf44a193a8b333cbeff2ee154298d450 16-Aug-2010 Matt Fleming <matt@console-pimps.org> Add ELF ObjectWriter and Streamer support.

I forgot to add these files in commit 111172.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111174 91177308-0d34-0410-b5e6-96231b3b80d8
6b2e257e74b2c8e2f93bb244e0c80cb73005b74a 16-Aug-2010 Matt Fleming <matt@console-pimps.org> Add ELF ObjectWriter and Streamer support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111172 91177308-0d34-0410-b5e6-96231b3b80d8
a8bf473fb15bbedc78144ec57438f884616283b0 16-Aug-2010 Matt Fleming <matt@console-pimps.org> Layout helper function.

Introduce a helper method to add a section to the end of a layout. This
will be used by the ELF ObjectWriter code to add the metadata sections
(symbol table, etc) to the end of an object file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111171 91177308-0d34-0410-b5e6-96231b3b80d8
6c8b3d2f1f6fe6eb6a7ae81eab24c1b6db9232ae 16-Aug-2010 Matt Fleming <matt@console-pimps.org> Record a symbol's size which is needed for ELF symbol tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111170 91177308-0d34-0410-b5e6-96231b3b80d8
3e09669bc44aeb053e58ae8245ad0e49570b0e21 16-Aug-2010 Matt Fleming <matt@console-pimps.org> ELF entry size support.

Some ELF sections contain fixed-sized entries. Provide a way to record
the entry size of a section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111169 91177308-0d34-0410-b5e6-96231b3b80d8
3c14ca47fc057c5999cd41ce2782e0ebaa2bcf7d 11-Aug-2010 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add -show-inst-operands, for dumping the parsed instruction representation before matching.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110791 91177308-0d34-0410-b5e6-96231b3b80d8
b3cb6967949493a2e1b10d015ac08b746736764e 11-Aug-2010 Daniel Dunbar <daniel@zuster.org> MCAsmParser: Add dump() hook to MCParsedAsmOperand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110790 91177308-0d34-0410-b5e6-96231b3b80d8
b07ce60981368f816af4caa3257e1e4ebf059133 10-Aug-2010 Kevin Enderby <enderby@apple.com> Next bit of support for the dwarf .file directive. This patch takes the
previously collected info from the .file directives and outputs the encoded
bytes for it. For now this is only in the Mach-O streamer but at some point
will move to a more generic place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110617 91177308-0d34-0410-b5e6-96231b3b80d8
991808005a27b2e0049e124bf69250281276c317 08-Aug-2010 Benjamin Kramer <benny.kra@googlemail.com> Remove unused variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110551 91177308-0d34-0410-b5e6-96231b3b80d8
c257c669df0412606bfd06668367a0fc7f96df0a 06-Aug-2010 Daniel Dunbar <daniel@zuster.org> MC: Add default value for AddrSpace argument to EmitValue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110475 91177308-0d34-0410-b5e6-96231b3b80d8
e2195d8b357d7081edb5eb09d1d6e9d7b4bfc308 31-Jul-2010 Michael J. Spencer <bigcheesegs@gmail.com> Add relax all support to the COFF object streamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109947 91177308-0d34-0410-b5e6-96231b3b80d8
1abcd06856df324eac98d4bf5ba673fb77ae6a11 29-Jul-2010 Benjamin Kramer <benny.kra@googlemail.com> Plug the remaining MC leaks by giving MCObjectStreamer/MCAsmStreamer ownership of the TargetAsmBackend and the MCCodeEmitter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109767 91177308-0d34-0410-b5e6-96231b3b80d8
3bce5adb32fbbe5c5549b902f4d65737f40c1499 29-Jul-2010 Benjamin Kramer <benny.kra@googlemail.com> Stop leaking std::strings in GetDwarfFile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109746 91177308-0d34-0410-b5e6-96231b3b80d8
7cbf73a73f296167b6e978dbd919ed249e88eeb5 28-Jul-2010 Kevin Enderby <enderby@apple.com> Added first bit of support for the dwarf .file directive. This patch collects
the info from the .file directive and makes file and directory tables that
will eventually be put out as part of the dwarf info in the output file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109651 91177308-0d34-0410-b5e6-96231b3b80d8
36880e704f63d4c77a3c5a94047b5afdf79e82db 28-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC: Put back the MCFragment vtable, so subclasses are destroyed properly (duh).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109649 91177308-0d34-0410-b5e6-96231b3b80d8
c96a82a53415fd0b6cb1bbea2593dc18683c70cc 22-Jul-2010 Reid Kleckner <reid@kleckner.net> Initial modifications to MCAssembler and TargetMachine for the MCJIT.

Patch by Olivier Meurant!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109080 91177308-0d34-0410-b5e6-96231b3b80d8
8067adc271d7ccfcd28a238d73942b21a5e2bc62 19-Jul-2010 Michael J. Spencer <bigcheesegs@gmail.com> MC: Add WinCOFFStreamer implementation and merge common code from MachO
into MCObjectStreamer.

Origonal Windows COFF implementation by Nathan Jedffords.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108678 91177308-0d34-0410-b5e6-96231b3b80d8
1edf6ca2cbb4b01db44683d5e9479a240cfcf497 19-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Stop playing unsafe member function pointer calls, this isn't
portable enough.
- Downside is we now double dispatch through a stub function, but this isn't
performance critical.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108661 91177308-0d34-0410-b5e6-96231b3b80d8
6a46d571b461246e36f82c146e17bf614d2114ea 18-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Fix .abort and .secure_log_unique to accept arbitrary token
sequences, not just strings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108655 91177308-0d34-0410-b5e6-96231b3b80d8
f21e4e9326aa3ebc78bc2770722fb5150fe7ede9 18-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Fix TokError() to accept a Twine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108647 91177308-0d34-0410-b5e6-96231b3b80d8
aef87e3307f61fa54004b5ea01b619bf4e901ac3 18-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Hide the AsmParser implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108646 91177308-0d34-0410-b5e6-96231b3b80d8
d1e3b44d6c0094eda2e2a854d5fdb6a0d7ba327e 17-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Lift Run() and TargetParser to base class.

Also, add constructor function for creating AsmParser instances.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108604 91177308-0d34-0410-b5e6-96231b3b80d8
38e59891ee4417a9be2f8146ce0ba3269e38ac21 15-Jul-2010 Benjamin Kramer <benny.kra@googlemail.com> Don't pass StringRef by reference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108366 91177308-0d34-0410-b5e6-96231b3b80d8
a838bae1863b463c07056c086ab7c23faa9759e7 13-Jul-2010 Chris Lattner <sabre@nondot.org> use a typedef instead of its expansion, patch by Michael Spencer

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108229 91177308-0d34-0410-b5e6-96231b3b80d8
4d5fe97c479ed3a2736755a3b821f5ff99c67cdc 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Move .section parsing to Darwin specific parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108190 91177308-0d34-0410-b5e6-96231b3b80d8
19ad3b88f71fdc0fe0ec19e05bb37c3ef1a42b5b 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmLexer: Raise LexUntilEndOfStatement to MCAsmLexer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108189 91177308-0d34-0410-b5e6-96231b3b80d8
47f5608029cbb7213b8624294f7ff1c39c952b6b 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Move special section directive parsing to Darwin specific parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108187 91177308-0d34-0410-b5e6-96231b3b80d8
4c7c08bfbfc3858bddf0ba52550edb683f0070c9 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Inline AsmParser::CreateSymbol into callers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108183 91177308-0d34-0410-b5e6-96231b3b80d8
b6c3a607ac91dc4fdd0b195e9df2b04eaa53a1ef 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Move .tbss and .zerofill parsing to Darwin specific parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108180 91177308-0d34-0410-b5e6-96231b3b80d8
492b7a21cb28adf8819ee369f42a8129de5227ae 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Move .desc parsing to Darwin specific parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108179 91177308-0d34-0410-b5e6-96231b3b80d8
38a4e2acb7d01fbba3544882084bc9955812b7d3 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Move .lsym parsing to Darwin specific parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108176 91177308-0d34-0410-b5e6-96231b3b80d8
9ac66b008d74d0a981455a2220136c59cf363226 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Move some misc. Darwin directive handling to DarwinAsmParser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108174 91177308-0d34-0410-b5e6-96231b3b80d8
4e82bbb745160f19d76b9b5de5b93ebe224e1acf 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MCAsmParser: Add getSourceManager().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108171 91177308-0d34-0410-b5e6-96231b3b80d8
e47497087b00fd4519057d3bd30e8bd4af61c6ca 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC/AsmParser: Add a DarwinAsmParser extension.
- Currently initialization is a bit of a hack, but harmless. We need to rework
various parts of target initialization to clean this up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108165 91177308-0d34-0410-b5e6-96231b3b80d8
81ea00f45d59953d34a1db4973dd72d14080ab15 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MCAsmParser: Pull some directive handling out into a helper class, and change
DirectiveMap to be based on MCAsmParserExtension.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108161 91177308-0d34-0410-b5e6-96231b3b80d8
53131982d6290e3a865f400174778deaac452ff3 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC: Add MCAsmParserExtension, a base class for all the target/object specific
classes which want to extend the basic asm parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108158 91177308-0d34-0410-b5e6-96231b3b80d8
dc4c7da5d4c73bef2ce73ce0f96019457337c402 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC: Move AsmParser::TokError to MCAsmParser().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108155 91177308-0d34-0410-b5e6-96231b3b80d8
ca90dc6d295f7f6a5ef4240f26bcebe54276def5 12-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC: Move getLoc() to MCAsmLexer().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108154 91177308-0d34-0410-b5e6-96231b3b80d8
b162290e39afd49d4c7d342333b331bc96232720 12-Jul-2010 Chris Lattner <sabre@nondot.org> introduce WinCOFFObjectWriter, patch by Michael Spencer!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108103 91177308-0d34-0410-b5e6-96231b3b80d8
eb72dcaef7423069cf8f9e802fa8de64dc8f8f30 12-Jul-2010 Chris Lattner <sabre@nondot.org> introduce WinCOFFStreamer.cpp, patch by Michael Spencer!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108102 91177308-0d34-0410-b5e6-96231b3b80d8
1b02acb2a0513b3ec20585196d485ebc3da0ccec 08-Jul-2010 Kevin Enderby <enderby@apple.com> Revert some unneeded parts of the change in r107886 for the
.weak_def_can_be_hidden directive. Chris pointed out that the MCAsmInfo.h/.cpp
chunks aren't needed for this until the compiler starts generating these. And
when that happens it will be more convenient for it to be a bool than a const

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107906 91177308-0d34-0410-b5e6-96231b3b80d8
f59cac5ed36360b4c462781051f996b3499d7e0f 08-Jul-2010 Kevin Enderby <enderby@apple.com> Added the darwin .weak_def_can_be_hidden directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107886 91177308-0d34-0410-b5e6-96231b3b80d8
b57096842479bc67111a16f0a0bcee717eb6df8c 01-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC: Fix some stray hunks I didn't intend to commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107428 91177308-0d34-0410-b5e6-96231b3b80d8
9186fa6b0c8806786cae78bed50f95d1c7ce2b00 01-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC: Pass the target instance to the AsmParser constructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107426 91177308-0d34-0410-b5e6-96231b3b80d8
94610588af55ae7d16ba7d72d1e68324631ec249 01-Jul-2010 Daniel Dunbar <daniel@zuster.org> MC: Move COFF enumeration constants to llvm/Support/COFF.h, patch by Michael

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107418 91177308-0d34-0410-b5e6-96231b3b80d8
dd2ad8432f104282ff43c94457f474ea0a264175 01-Jul-2010 Mikhail Glushenkov <foldr@codedgers.com> Trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107360 91177308-0d34-0410-b5e6-96231b3b80d8
07d317711781d8c9268f7d6afcf1ba7eadf1d127 30-Jun-2010 Bill Wendling <isanbard@gmail.com> Revert r107205 and r107207.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107215 91177308-0d34-0410-b5e6-96231b3b80d8
207855cff9b4811004b9720f28a5bd0adf3784b7 29-Jun-2010 Bill Wendling <isanbard@gmail.com> Introducing the "linker_weak" linkage type. This will be used for Objective-C
metadata types which should be marked as "weak", but which the linker will
remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is
defined like this:

.globl l_objc_msgSend_fixup_alloc
.weak_definition l_objc_msgSend_fixup_alloc
.section __DATA, __objc_msgrefs, coalesced
.align 3
.quad _objc_msgSend_fixup

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107205 91177308-0d34-0410-b5e6-96231b3b80d8
f187ac5a23213f85c3c1f0f80b3592295ee6441d 28-Jun-2010 Kevin Enderby <enderby@apple.com> Added the darwin .secure_log_unique and .secure_log_reset directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107077 91177308-0d34-0410-b5e6-96231b3b80d8
843aa1f15b06fc3c2b39740ffb5bffd2fa6827ce 16-Jun-2010 Daniel Dunbar <daniel@zuster.org> MC: Simplify MCAssembler::isSymbolLinkerVisible to only take an MCSymbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106142 91177308-0d34-0410-b5e6-96231b3b80d8
83b467178a8295048f3ee7b44ff9c7ea244a96cc 16-Jun-2010 Daniel Dunbar <daniel@zuster.org> MC: Lift SwitchSection() and Finish() into MCObjectStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106141 91177308-0d34-0410-b5e6-96231b3b80d8
8dc68ab931e0f0a7c5caf9cd341b2ec855733863 16-Jun-2010 Daniel Dunbar <daniel@zuster.org> MC: Factor out an MCObjectStreamer class, which will be shared by the concrete
object file format writers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106140 91177308-0d34-0410-b5e6-96231b3b80d8
4b1000d117f1b7cc5411bc251d141fe182a4ae1c 01-Jun-2010 Dan Gohman <gohman@apple.com> Don't call flush() at a library level which isn't checking for errors
and doesn't know where the output is going.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105274 91177308-0d34-0410-b5e6-96231b3b80d8
d86e6ac9892ee61742d85f9f14f1179216d2e47b 01-Jun-2010 Dan Gohman <gohman@apple.com> Fix a typo in a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105272 91177308-0d34-0410-b5e6-96231b3b80d8
c90e30aa6f3792a460202017523171f435e2ba34 26-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Eliminate MCAsmFixup, replace with MCFixup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104699 91177308-0d34-0410-b5e6-96231b3b80d8
0dd0c941c9eb4adc13319ed7adcaffe58a68d294 26-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Simplify MCFixup and increase the available offset size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104698 91177308-0d34-0410-b5e6-96231b3b80d8
482ad802f1b1885542ea8a30e144a228a1526912 26-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Use accessors for access to MCAsmFixup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104697 91177308-0d34-0410-b5e6-96231b3b80d8
e614e393c7f80a39430b8a69813f5fd1f4c77cf9 26-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Eliminate MCFragment vtable, which was unnecessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104689 91177308-0d34-0410-b5e6-96231b3b80d8
96ac5156cadde7e4494990d5b4f873e76787a370 26-May-2010 Eric Christopher <echristo@apple.com> Start adding mach-o tls reloc support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104651 91177308-0d34-0410-b5e6-96231b3b80d8
fdb5a8617996a20370756962e34c2e80176d6e87 23-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Add an MCLoggingStreamer, for use in debugging integrated-as mismatches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104463 91177308-0d34-0410-b5e6-96231b3b80d8
0df4a80e2063424929bbfaa61dd7973062218ad4 22-May-2010 Eric Christopher <echristo@apple.com> Fix comment and whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104392 91177308-0d34-0410-b5e6-96231b3b80d8
0783fb7e6d2f03cbb398dc0f083c96ba8af9ab21 21-May-2010 Nathan Jeffords <blunted2night@gmail.com> added an assertion to MCObjectWriter::WriteBytes to catch misuse of the ZeroFillSize parameter

If the size of the string is greater than the zero fill size, the function will attempt to write a very large string of zeros to the object file (~4GB on 32 bit platforms). This assertion will catch the scenario and crash the program before the write occurs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104334 91177308-0d34-0410-b5e6-96231b3b80d8
924c5e58f2a7c89019000e7dee3391dcebdf8a21 21-May-2010 Matt Fleming <matt@console-pimps.org> Add support for parsing the ELF .type assembler directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104316 91177308-0d34-0410-b5e6-96231b3b80d8
51f5d6af8c45bf145808ced9e867ac711acc9955 20-May-2010 Eric Christopher <echristo@apple.com> Fix build by actually declaring the variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104201 91177308-0d34-0410-b5e6-96231b3b80d8
c1a887d76d95100e7e05aa76e077710bc4e0b1cf 20-May-2010 Eric Christopher <echristo@apple.com> Partial code for emitting thread local bss data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104197 91177308-0d34-0410-b5e6-96231b3b80d8
4d01cbe93b0e1a349b5c2881f1b319963f9e0504 18-May-2010 Eric Christopher <echristo@apple.com> Make EmitTBSSSymbol take a section argument so that we can find it later.
Fix up callers and users.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104057 91177308-0d34-0410-b5e6-96231b3b80d8
ebe7fcd041e1e9c3a0c535b26d8cdb45805bbeb8 18-May-2010 Kevin Enderby <enderby@apple.com> Added support in MC for Directional Local Labels.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103989 91177308-0d34-0410-b5e6-96231b3b80d8
c6177a4531a5d7e2207a3184cc8a4f1792073a7d 18-May-2010 Eric Christopher <echristo@apple.com> More data/parsing support for tls directives. Add a few more testcases
and cleanup comments as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103985 91177308-0d34-0410-b5e6-96231b3b80d8
9a744e38607bc3046dffea56efec0b2dfc51d5e4 17-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Add dyn_cast support to MCSection.
- Of questionable utility, since in general anything which wants to do this should probably be within a target specific hook, which can rely on the sections being of the appropriate type. However, it can be useful for short term hacks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103980 91177308-0d34-0410-b5e6-96231b3b80d8
423c9e3e589a79be757842d421600590c68d5b43 17-May-2010 Eric Christopher <echristo@apple.com> Add some section and constant support for darwin TLS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103974 91177308-0d34-0410-b5e6-96231b3b80d8
525a3a67c16c2d1d9ce9d75ed1b44296be6c2270 17-May-2010 Daniel Dunbar <daniel@zuster.org> llvm-mc: Support reassignment of variables in one special case, when the
variable has not yet been used in an expression. This allows us to support a few
cases that show up in real code (mostly because gcc generates it for Objective-C
on Darwin), without giving up a reasonable semantic model for assignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103950 91177308-0d34-0410-b5e6-96231b3b80d8
482eba054ab3543ee0e1f453d3d6441092f4b76d 14-May-2010 Eric Christopher <echristo@apple.com> Add AsmParser support for darwin tbss directive.

Nothing uses this yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103757 91177308-0d34-0410-b5e6-96231b3b80d8
3fa0c8ca96edbd2c77541c937b10149c6fb08cac 14-May-2010 Nick Lewycky <nicholas@mxc.ca> Fix typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103755 91177308-0d34-0410-b5e6-96231b3b80d8
47b3ec4daa12019b98468e8f646501ec285bbb59 14-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Switch to completely lazy layout.
- The eliminates the last major algorithmic problem with MC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103754 91177308-0d34-0410-b5e6-96231b3b80d8
9005d45a990ef46f06800bd6bd6a7d1298a33645 14-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Extend MCAsmLayout to explicitly track which fragments have been layed out, and enforce several invariants to LayoutFragment to ensure we only do layout in a sensible order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103753 91177308-0d34-0410-b5e6-96231b3b80d8
337718e09c99349939a53643984c04f5dc118bb7 14-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Switch MCFragment to storing the layout order index, not its index in the file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103751 91177308-0d34-0410-b5e6-96231b3b80d8
afc6acdab7ba3544d76329ab461f14a93cee67a2 14-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Change LayoutSection() to only do the section initializiation.

Also, elimminate MCAsmLayout::set*, which are no longer needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103750 91177308-0d34-0410-b5e6-96231b3b80d8
b69fc044db8c193348b6611f46432bb21b3cbe90 13-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Move Layout{Fragment,Section} into MCAsmLayout, and add LayoutFile().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103738 91177308-0d34-0410-b5e6-96231b3b80d8
2c18d3b0fec25b2b7befc7ac5751e84005f4a869 13-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Factor out MCAssembler::ComputeFragmentSize.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103724 91177308-0d34-0410-b5e6-96231b3b80d8
f60c736c64d6c9d683df1cead3631958359c14f1 13-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Add section layout order indices to MCSectionData.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103715 91177308-0d34-0410-b5e6-96231b3b80d8
aa0d350fe54b0bf13947cdb08d8e76e4ec233d6f 13-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Add MCAsmLayout::FragmentReplaced() helper function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103709 91177308-0d34-0410-b5e6-96231b3b80d8
2661f11e4602ad017fa155f6fdcee0a4f2d1ae86 13-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Eliminate MCSectionData::{,Address,File}Size, which can now be computed by
utility functions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103695 91177308-0d34-0410-b5e6-96231b3b80d8
456b5012704bcece2c8c28783e6efabb7b998616 13-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Add MCAlignFragment::OnlyAlignAddress bit. This is a bit of magic that says the align fragment shouldn't contribute to the logical section size, it is will be used for cleaning up the code to handle section alignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103690 91177308-0d34-0410-b5e6-96231b3b80d8
b5844ff1c44f0427bcf132eaece945da411e650f 13-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Add MCSectionData::AddressSize, which is the size of the address space consumed by the section. This can differ from both the section logical size, and the section size on disk (although the current code handles this without making an explicit distinction).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103689 91177308-0d34-0410-b5e6-96231b3b80d8
1c15413ebc8f4a35545a381a789a718627396d03 13-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Move MCAlignFragment::EmitNops value out of the constructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103665 91177308-0d34-0410-b5e6-96231b3b80d8
4e544870c4c3f81b150e4c3b38a18d629d706b74 13-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Eliminate MCZeroFillFragment, it is no longer needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103664 91177308-0d34-0410-b5e6-96231b3b80d8
3153fec733acd079a9e681d16d39253b9517e02c 13-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Switch MCFillFragment to storing total fill size instead of a count. This allows using ValueSize==0 to represent a virtual fill.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103662 91177308-0d34-0410-b5e6-96231b3b80d8
e73d49eda2cb4fc30b52c4a241acf69c8af98302 13-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Drop support for alignment in ZeroFill fragment, we can just use
MCAlignFragments for this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103661 91177308-0d34-0410-b5e6-96231b3b80d8
f0d17d2461a6458568672f611ba4a590d26b1e1a 12-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Factor out MCAssembler::LayoutFragment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103649 91177308-0d34-0410-b5e6-96231b3b80d8
d13a0caf726e05c9bd939d752ef371d6d467ef28 12-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Simplify LayoutSection to just take the index of the section to layout.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103627 91177308-0d34-0410-b5e6-96231b3b80d8
bc1a0cf13950dcd64d6d0398df5419a0a2931721 12-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Track section layout order explicitly, and use to simplify.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103616 91177308-0d34-0410-b5e6-96231b3b80d8
18c1021ec108722506125926087b1e5fcfb28046 12-May-2010 Rafael Espindola <rafael.espindola@gmail.com> Add support for movi32 of global values to the new (MC) asm printer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103576 91177308-0d34-0410-b5e6-96231b3b80d8
624d466a671feb563c137d1216ecad9d03d1a2ed 12-May-2010 Nathan Jeffords <blunted2night@gmail.com> Added a trivial function to modify the flags field of MCSymbolData class. The function takes the value and a mask, and clears the mask bits before applying the value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103534 91177308-0d34-0410-b5e6-96231b3b80d8
651804c3d63a05f72221a6d133e5b344e6aaa093 11-May-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O x86_64: Switch to using fragment atom symbol.
- This eliminates getAtomForAddress() (which was a linear search) and
simplifies getAtom().
- This also fixes some correctness problems where local labels at the same
address as non-local labels could be assigned to the wrong atom.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103480 91177308-0d34-0410-b5e6-96231b3b80d8
071f73db4a0c3f7f00ef14d38af17f3c8d69827a 11-May-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Explicitly track atoms, as represented by their defining symbol, for each fragment (not yet used).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103438 91177308-0d34-0410-b5e6-96231b3b80d8
b54b9ddaaf2d258767d360583642ed1b91075fc9 08-May-2010 Chris Lattner <sabre@nondot.org> break coff symbol definition stuff out into proper MCStreamer callbacks,
patch by Nathan Jeffords!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103346 91177308-0d34-0410-b5e6-96231b3b80d8
6e5ce287b0e53c264af0ba37169ad964e19b5bb7 07-May-2010 Chris Lattner <sabre@nondot.org> add COFF support for COMDAT sections, patch by Nathan Jeffords!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103304 91177308-0d34-0410-b5e6-96231b3b80d8
a6eeb6e226d7d86d04e34e3b6464f66e0a052f43 07-May-2010 Kevin Enderby <enderby@apple.com> Fix i386 relocations to Weak Definitions. The relocation entries should be
external and the item to be relocated should not have the address of the
symbol added in.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103302 91177308-0d34-0410-b5e6-96231b3b80d8
eb40a0fd98c44ecc6360e7fab33cf9e9911bed4f 07-May-2010 Chris Lattner <sabre@nondot.org> switch MCSectionCOFF from a syntactic to semantic representation,
patch by Peter Housel!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103267 91177308-0d34-0410-b5e6-96231b3b80d8
8d627d31531ad45fecca82d52cd34092c7c4cc1d 05-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Make setVariableValue check the redefinition condition a bit more strongly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103110 91177308-0d34-0410-b5e6-96231b3b80d8
08a408a4b3224627db07eb27e174085d8e1d2426 05-May-2010 Daniel Dunbar <daniel@zuster.org> MC: Rename MCSymbol::{g,s}etValue -> MCSymbol::{g,s}etVariableValue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103095 91177308-0d34-0410-b5e6-96231b3b80d8
ae7fb0b03ebc524e6c47f0262b8dc87810fee1a8 05-May-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O/x86_64: Relocations in debug sections should use local relocations
when possible.
- <rdar://problem/7934873>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103092 91177308-0d34-0410-b5e6-96231b3b80d8
b9a01bcf486814a44098745920d43daaf9f7c260 29-Apr-2010 Mon P Wang <wangmp@apple.com> Add support for assemblers that don't support periods in a name

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102594 91177308-0d34-0410-b5e6-96231b3b80d8
a5370f11d9c27b2cb37fa61eb29eb56356582978 19-Apr-2010 Dan Gohman <gohman@apple.com> Add a const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101777 91177308-0d34-0410-b5e6-96231b3b80d8
eef6d78be1c3a685f277be3e89ff17f67ed65f49 17-Apr-2010 Chris Lattner <sabre@nondot.org> teach the x86 asm parser how to handle segment prefixes
in memory operands. rdar://7874844

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101661 91177308-0d34-0410-b5e6-96231b3b80d8
7834facff938cccce294e5c4065202d922411a5d 17-Apr-2010 Chris Lattner <sabre@nondot.org> refactor .if handling code a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101659 91177308-0d34-0410-b5e6-96231b3b80d8
d305035155ef3d138e102434bf5a733ea2e32405 14-Apr-2010 Chris Lattner <sabre@nondot.org> implement mc asmparser support for '.', which gets the
current PC. rdar://7834775

We now produce an identical .o file compared to the cctools
assembler for something like this:

jmp L1
.long . - L0
jmp A
.long . - L1

.zerofill __DATA,_bss,A,0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101227 91177308-0d34-0410-b5e6-96231b3b80d8
535f4de469c58e326e8bf49310ac30fe4e792a02 13-Apr-2010 Sean Callanan <scallanan@apple.com> Quick fix for build errors caused by undefined

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101180 91177308-0d34-0410-b5e6-96231b3b80d8
9899f70a7406d632c82849978bf6981f1ee4ccb5 13-Apr-2010 Sean Callanan <scallanan@apple.com> Fixed a nasty layering violation in the edis source
code. It used to #include the enhanced disassembly
information for the targets it supported straight
out of lib/Target/{X86,ARM,...} but now it uses a
new interface provided by MCDisassembler, and (so
far) implemented by X86 and ARM.

Also removed hacky #define-controlled initialization
of targets in edis. If clients only want edis to
initialize a limited set of targets, they can set
--enable-targets on the configure command line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101179 91177308-0d34-0410-b5e6-96231b3b80d8
287df1bc0309962770b6c176f2d143795dd3cc2f 08-Apr-2010 Chris Lattner <sabre@nondot.org> delete a forwarding function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100815 91177308-0d34-0410-b5e6-96231b3b80d8
74aae4726a66733c5872588287535a984f9a94c7 08-Apr-2010 Chris Lattner <sabre@nondot.org> move elf section uniquing to MCContext. Along the way
merge XCore's section into MCSectionELF

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100812 91177308-0d34-0410-b5e6-96231b3b80d8
22772214de79aa1c5ca38c4fb1da137d8fb30a05 08-Apr-2010 Chris Lattner <sabre@nondot.org> remove the TargetLoweringObjectFileMachO::getMachoSection
api and update clients to use MCContext instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100808 91177308-0d34-0410-b5e6-96231b3b80d8
f0559e4b242e85d4b9d1dd08758814c599bdce13 08-Apr-2010 Chris Lattner <sabre@nondot.org> move macho section uniquing from MCParser and TLOF to MCContext where
the compiler and asmparser now unique to the same sections. This fixes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100807 91177308-0d34-0410-b5e6-96231b3b80d8
79180e2ef5ff4aa3c8f64b13736e8648663f3965 06-Apr-2010 Chris Lattner <sabre@nondot.org> Give AsmParser an option to control whether it finalizes
the stream. New demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
(__TEXT,__text) section
0000000000000000 subq $0x08,%rsp
0000000000000004 movl %edi,(%rsp)
0000000000000007 movl %edi,%eax
0000000000000009 incl %eax
000000000000000b movl %eax,(%rsp)
000000000000000e movl %eax,0x04(%rsp)
0000000000000012 addq $0x08,%rsp
0000000000000016 ret

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100492 91177308-0d34-0410-b5e6-96231b3b80d8
3d2251361171b1a41bdb2ac71882e69d48617f49 05-Apr-2010 Chris Lattner <sabre@nondot.org> eliminate the magic AbsoluteDebugSectionOffsets MAI hook,
which is really a property of the section being referenced.
Add a predicate to MCSection to replace it.

Yay for reduction in magic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100367 91177308-0d34-0410-b5e6-96231b3b80d8
0887fa0b8c966234025535d4adcbd5f562a3c0a5 04-Apr-2010 Chris Lattner <sabre@nondot.org> isAbsoluteEHSectionOffsets always returns false, eliminate it
and substitute false at the one call site.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100354 91177308-0d34-0410-b5e6-96231b3b80d8
d374087be5360a353a4239a155b1227057145f48 04-Apr-2010 Chris Lattner <sabre@nondot.org> fix an ugly wart in the MCInstPrinter api where the
raw_ostream to print an instruction to had to be specified
at MCInstPrinter construction time instead of being able
to pick at each call to printInstruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100307 91177308-0d34-0410-b5e6-96231b3b80d8
58bc4dd4a91443ddd3120b0a2f1801ad4d6aae1c 04-Apr-2010 Chris Lattner <sabre@nondot.org> add a twine form of MCStreamer::EmitRawText, and mc'ize
a few more things in AsmPrinter.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100294 91177308-0d34-0410-b5e6-96231b3b80d8
91bead790518fcf5cb26019fb1ebf2372e8a5b3f 03-Apr-2010 Chris Lattner <sabre@nondot.org> add a new EmitInlineAsm function to asmprinter to handle inline asm.
If we have an MCAsmStreamer, we continue to emit asm textually,
otherwise we (currently) emit an error to errs and ignore it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100289 91177308-0d34-0410-b5e6-96231b3b80d8
9b97a73dedf736e14b04a3d1a153f10d25b2507b 30-Mar-2010 Chris Lattner <sabre@nondot.org> Rip out the 'is temporary' nonsense from the MCContext interface to
create symbols. It is extremely error prone and a source of a lot
of the remaining integrated assembler bugs on x86-64.

This fixes rdar://7807601.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99902 91177308-0d34-0410-b5e6-96231b3b80d8
ac2884a717daf3ad2aa8425320795d661e8a980b 25-Mar-2010 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add a -mc-relax-all option, which relaxes every fixup. We always need
exactly two passes in that case, and don't ever need to recompute any layout,
so this is a nice baseline for relaxation performance.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99563 91177308-0d34-0410-b5e6-96231b3b80d8
0cc8bd48619b943379f5c2cc11a19fb189342925 25-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Stop restarting layout on every relaxation.
- Still O(N^2), just a faster form, and now its the MCAsmLayout's fault.

On the .s I am tuning against (combine.s from 403.gcc):
ddunbar@lordcrumb:MC$ diff stats-before.txt stats-after.txt
< 1728 assembler - Number of assembler layout and relaxation steps
< 7707 assembler - Number of emitted assembler fragments
< 120588 assembler - Number of emitted object file bytes
< 2233448 assembler - Number of evaluated fixups
< 1727 assembler - Number of relaxed instructions
< 6723845 mcexpr - Number of MCExpr evaluations
> 3 assembler - Number of assembler layout and relaxation steps
> 7707 assembler - Number of emitted assembler fragments
> 120588 assembler - Number of emitted object file bytes
> 14796 assembler - Number of evaluated fixups
> 1727 assembler - Number of relaxed instructions
> 67889 mcexpr - Number of MCExpr evaluations
Feel free to LOL at the -before numbers, if you like.

I am a little surprised we make more than 2 relaxation passes. It's pretty
trivial for us to do relaxation out-of-order if that would give a speedup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99543 91177308-0d34-0410-b5e6-96231b3b80d8
f476b00f51c98d12dda1f3a7c8455f8d74812c6d 25-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Simplify main section layout process by moving alignment into LayoutSection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99529 91177308-0d34-0410-b5e6-96231b3b80d8
be644a38c09bd0fa03bb07f48f2c1dec32052de8 25-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Sink Section address assignment into LayoutSection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99528 91177308-0d34-0410-b5e6-96231b3b80d8
5a6e97a7e4e25265cd491f10cc9b0676ff5c0746 25-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Explicity track section and fragment ordinals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99500 91177308-0d34-0410-b5e6-96231b3b80d8
5d428511ca9607d52a09d3483d0738f483e09934 25-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Route access to SectionData offset and file size through MCAsmLayout.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99474 91177308-0d34-0410-b5e6-96231b3b80d8
432cd5fd9b4c97f1e4a53fcf45e16f7dd6bc085e 25-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Route access to Fragment offset and effective size through MCAsmLayout.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99473 91177308-0d34-0410-b5e6-96231b3b80d8
7c3d45a03e64ac1b5b2ecdb7153989fd7cebfd2c 25-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Eliminate MC{Fragment,{Section,Symbol}Data}::getAddress.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99467 91177308-0d34-0410-b5e6-96231b3b80d8
6a4824c466bbfbcbe7dc4d95ec1e23a14ec73d87 25-Mar-2010 Dan Gohman <gohman@apple.com> Docuemntation corrections from John Myers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99454 91177308-0d34-0410-b5e6-96231b3b80d8
207e06ea0446c51cb1d89f6400ec7becc46487f8 24-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Direct all {fragment,section,symbol} address access through the MCAsmLayout object.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99380 91177308-0d34-0410-b5e6-96231b3b80d8
337055e62f28f18a9a8c4a090633cae1c2256ae1 23-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Add TargetAsmBackend::MayNeedRelaxation, for checking whether a particular instruction + fixups might need relaxation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99249 91177308-0d34-0410-b5e6-96231b3b80d8
9799de910e97879bf9f30f359551071a94d61570 23-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Tweak MCInstFragment to include the encoded data and fixups, so that we don't need to recompute them during relaxation. I will revisit this once all the other pieces of fast relaxation are in place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99244 91177308-0d34-0410-b5e6-96231b3b80d8
1ccd91a5b156ff8b415806b0d60fd7c302d62693 23-Mar-2010 Jeffrey Yasskin <jyasskin@google.com> Put MCSectionCOFF::Name into the MCContext instead of leaking it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99231 91177308-0d34-0410-b5e6-96231b3b80d8
3f4dcd92daef80f87919507b6baf2a97d4bfaa2e 23-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Add MCInstFragment, not used yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99229 91177308-0d34-0410-b5e6-96231b3b80d8
9d39e616cc0f43e91e509e5c8129c7d46327fd0d 22-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Fix a few more cases we were passing an MCDataFragment when a MCFragment would do, and sprinkle in some const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99218 91177308-0d34-0410-b5e6-96231b3b80d8
67c076cf59d14fc96feb5c915447f8ea79cf8325 22-Mar-2010 Daniel Dunbar <daniel@zuster.org> MCInst: Add ::dump_pretty.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99216 91177308-0d34-0410-b5e6-96231b3b80d8
b751418a3992c9da6f48c988f549c8e4c65e26f1 22-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Change MCObjectWriter::RecordRelocation to take an MCFragment (instead of a MCDataFragment). Object files should only need the generic MCFragment features.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99205 91177308-0d34-0410-b5e6-96231b3b80d8
2a6e3f5be21fdcb1fa81533ec81ba879df815607 22-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Eliminate MCFragment::getMaxFileSize.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99203 91177308-0d34-0410-b5e6-96231b3b80d8
8d39eb47d6a15d36be7ac0d0154a6897e42f5adc 22-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Share the MCAsmLayout object, although its still not used for anything important.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99202 91177308-0d34-0410-b5e6-96231b3b80d8
d4d4a90a8c1ec76bb572cfeb4fadcad329b8cab9 19-Mar-2010 Douglas Gregor <dgregor@apple.com> Acccess control is lame

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98962 91177308-0d34-0410-b5e6-96231b3b80d8
1a07bc5cf4dfa8e4b2fcde47de95839a5d4d7626 19-Mar-2010 Douglas Gregor <dgregor@apple.com> struct -> class, to silence a Clang warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98961 91177308-0d34-0410-b5e6-96231b3b80d8
b36052f0e4f59525b34bb4b56648c9121a8beda8 19-Mar-2010 Daniel Dunbar <daniel@zuster.org> MCCodeEmitter: Add target independent fixup flag for is-pc-relative.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98954 91177308-0d34-0410-b5e6-96231b3b80d8
cf871e5abff63a53f9e97ff9e37fb7297d0cb847 19-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Sink code emitter into MCAssembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98953 91177308-0d34-0410-b5e6-96231b3b80d8
2df4ceba15c130005967ee9e5fb4aa5568de1b0c 19-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Move to MachObjectWriter.{h,cpp}.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98952 91177308-0d34-0410-b5e6-96231b3b80d8
53b2338a1d061ad15a858ff0d641431f4d4ac101 19-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Split MCObjectWriter out of MCAssembler.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98949 91177308-0d34-0410-b5e6-96231b3b80d8
b1e98945e4b107eb3f2ac1b54706c49864842dc4 19-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Lift the fixup evaluation and application up (to the same place), and eliminate MCAsmFixup::FixedValue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98944 91177308-0d34-0410-b5e6-96231b3b80d8
bacba997782f624d3c43591a913b8f1e3d733a52 19-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Factor out ExecutePostLayoutBinding, to separate the post-layout changes the object writer may need to make to the assembler from the actual .o writing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98943 91177308-0d34-0410-b5e6-96231b3b80d8
4c42a6de9f5456cc1b28f2d37db589f580f2adc7 19-Mar-2010 Chris Lattner <sabre@nondot.org> fix an MCInstPrinter leak that jyasskin pointed out:
createAsmStreamer now takes ownership of the instprinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98939 91177308-0d34-0410-b5e6-96231b3b80d8
8ad0dccbf2f0c5ecf9fdad93ac0207f6eaabaa1b 19-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O/x86_64: Add getAtom[ForAddress].
- These find the defining symbol which identifies the containing atom for a symbol or address. They are currently very slow, but will be eliminated eventually.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98925 91177308-0d34-0410-b5e6-96231b3b80d8
238698566311e9dba4092dfa6c0bfe253279702e 19-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Factor out isSymbolLinkerVisible method; "linker visible" is a made up term to refer to non-temporary labels + temporary labels in sections-which-require symbols. For Darwin, it corresponds to symbols which effectively define an atom.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98923 91177308-0d34-0410-b5e6-96231b3b80d8
9a1d20042f6a6ec648a3588f9b13264a4570aab0 18-Mar-2010 Daniel Dunbar <daniel@zuster.org> MCValue: Change to holding MCSymbolRefExprs instead of MCSymbols, we will need this for accessing to symbol modifiers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98791 91177308-0d34-0410-b5e6-96231b3b80d8
daf97333697e1d243e531f4be648b1640d6a58bb 18-Mar-2010 Daniel Dunbar <daniel@zuster.org> Add MCSymbol::isInSection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98790 91177308-0d34-0410-b5e6-96231b3b80d8
77e76940269b1bed36bc31ee5139b5c90fd13836 17-Mar-2010 Chris Lattner <sabre@nondot.org> fix GetOrCreateTemporarySymbol to require a name, clients
should use CreateTempSymbol() if they don't care about the

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98712 91177308-0d34-0410-b5e6-96231b3b80d8
4e815f8a8cae6c846cdca52420046cab902865de 16-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Allow modifiers in MCSymbolRefExpr, and eliminate X86MCTargetExpr.
- Although it would be nice to allow this decoupling, the assembler needs to be able to reason about MCSymbolRefExprs in too many places to make this viable. We can use a target specific encoding of the variant if this becomes an issue.
- This patch also extends llvm-mc to support parsing of the modifiers, as opposed to lumping them in with the symbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98592 91177308-0d34-0410-b5e6-96231b3b80d8
99d22adcadc750b2949283d562bdb4d480b8d11c 15-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Add MCSectionMachO::getType()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98582 91177308-0d34-0410-b5e6-96231b3b80d8
ad181304e1e203bb0a039f7581188afdbc1afb42 15-Mar-2010 Jeffrey Yasskin <jyasskin@google.com> Don't save a temporary string into a StringRef field.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98538 91177308-0d34-0410-b5e6-96231b3b80d8
1f8008cf214b984954de2e986fb8cb0e5cc58606 15-Mar-2010 Chris Lattner <sabre@nondot.org> fix MCSectionELF to not leak memory, just like I did for MCSymbol.
MCSectionMachO is already fine (yay for fixed size arrays?),
MCSectionCOFF still leaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98537 91177308-0d34-0410-b5e6-96231b3b80d8
c28cc093e3b5b8601cb5024a5365a6f31f49839a 15-Mar-2010 Chris Lattner <sabre@nondot.org> fix a memory leak yjasskin pointed out: MCSymbol is bump pointer
allocated and thus not freed. This is cool except that it contains
and std::string so the string data didn't get freed. In any case
there is no reason to redundantly store the string data in the
MCSymbol anyway, just make the MCSymbol ref the string data in the
MCContext StringMap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98536 91177308-0d34-0410-b5e6-96231b3b80d8
1d72a7661611395a1c4fd3a88a2151921180e510 14-Mar-2010 Chris Lattner <sabre@nondot.org> add a new CreateTempSymbol method, the use case for
CreateTempSymbol vs GetOrCreateTemporarySymbol are
completely different.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98486 91177308-0d34-0410-b5e6-96231b3b80d8
669f6b3beeee4a5a6f979a8e332e1d885aa30566 13-Mar-2010 Benjamin Kramer <benny.kra@googlemail.com> Add some parens and silence a warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98428 91177308-0d34-0410-b5e6-96231b3b80d8
5e6a7a248b980dd2a98a3613c72b75ba9d01d162 13-Mar-2010 Daniel Dunbar <daniel@zuster.org> llvm-mc: Support -n, useful for comparing -integrated-as output since the
compiler may not lead with the text section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98418 91177308-0d34-0410-b5e6-96231b3b80d8
f08fde41f34d739c157b1d75dadbb864e7957cab 12-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Implement initial support for relaxation.
- The implementation is currently very brain dead and inefficient, but I have a
clear plan on how to fix it.

- The good news is, it works and correctly assembles 403.gcc (when built with
Clang, at '-Os', '-Os -g', and '-O3'). Even better, at '-Os' and '-Os -g',
the resulting binary is exactly equivalent to that when built with the system
assembler. So it probably works! :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98396 91177308-0d34-0410-b5e6-96231b3b80d8
8a29fa6e02c8a76a71f43fc8bf4e51dd12bac4bc 12-Mar-2010 Chris Lattner <sabre@nondot.org> move fastcall/stdcall mangling up into Mangler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98384 91177308-0d34-0410-b5e6-96231b3b80d8
df3c8f29691a1e3f9ac4afbf05be52dbc898dae9 12-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Factor out MCAssembler::EvaluateFixup, and simplify.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98381 91177308-0d34-0410-b5e6-96231b3b80d8
a0e36d55c495b3325805c659ac365b5faea84e34 12-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Constify MCAsmLayout argument to MCExpr::EvaluteAs...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98380 91177308-0d34-0410-b5e6-96231b3b80d8
8315a357e48f2eeb4fa929168d3cb65924d9893e 12-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Add MCAssembler::addFixup, which enforces that fixups are added in order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98379 91177308-0d34-0410-b5e6-96231b3b80d8
5ef31a039dbb9c36cfd78442b3554d1b6974ec4c 12-Mar-2010 Chris Lattner <sabre@nondot.org> make the mangler take an MCContext instead of an MAI.
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98363 91177308-0d34-0410-b5e6-96231b3b80d8
fdab14b10564283028e9bdb628d095feae7fa071 12-Mar-2010 Chris Lattner <sabre@nondot.org> remove MAI argument from createAsmStreamer since it
can get it from the context now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98361 91177308-0d34-0410-b5e6-96231b3b80d8
c18409aed80ba1c6c5998befd3c3c8edc865c423 11-Mar-2010 Chris Lattner <sabre@nondot.org> change MCContext to always have an MCAsmInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98293 91177308-0d34-0410-b5e6-96231b3b80d8
8f0448cabcc37f3ecd7099c658346c0ece521e22 11-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Add MCSymbolData::getAddress() utility.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98266 91177308-0d34-0410-b5e6-96231b3b80d8
18ff2cced7e08ac76d8d5bcff8160a5f9a109cbb 11-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Start passing in the basic MCAsmLayout object.
- Also, drop the current location part of AsmLayout, I think I prefer to implement this via explicit symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98240 91177308-0d34-0410-b5e6-96231b3b80d8
f82f4490b130eca55b08d605456a4ceacccf288a 11-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Sketch initial MCAsmLayout class, which encapsulates the current layout of an assembly file. The MCAsmLayout is also available for use by MCExpr::EvaluateAs{Absolute,Relocatable}, to allow target specific hooks and "absolutizing" of symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98227 91177308-0d34-0410-b5e6-96231b3b80d8
1f3e445184e5ca2aa4295c2a77f2a4e0b957fea1 11-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Provide MCAssembler with a TargetAsmBackend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98222 91177308-0d34-0410-b5e6-96231b3b80d8
46836a783ab29f9cb49655d8b9cb8f5538a626fe 10-Mar-2010 Daniel Dunbar <daniel@zuster.org> MC: Move the backend section and symbol data maps to MCAssembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98186 91177308-0d34-0410-b5e6-96231b3b80d8
d80066eea98a3d5540d895bb77bc1ad50037f9e9 10-Mar-2010 Daniel Dunbar <daniel@zuster.org> Remove unneeded declarations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98185 91177308-0d34-0410-b5e6-96231b3b80d8
09d53fecfcc93377627b6ee7b4d92f8a6ff152e9 10-Mar-2010 Chris Lattner <sabre@nondot.org> move three lowering hooks from MAI to TLOF and make one of them
semantic instead of syntactic. This completes MCization of

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98145 91177308-0d34-0410-b5e6-96231b3b80d8
98cdab53c302a2d6686fa428c0e896b1fb195311 10-Mar-2010 Chris Lattner <sabre@nondot.org> set the temporary bit on MCSymbols correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98124 91177308-0d34-0410-b5e6-96231b3b80d8
00685bb5cf791fcda9fa0ceb42a6a62a07478461 10-Mar-2010 Chris Lattner <sabre@nondot.org> eliminate MCContext::CreateSymbol and CreateTemporarySymbol.
Add a new GetOrCreateTemporarySymbol method and a version that
takes a twine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98118 91177308-0d34-0410-b5e6-96231b3b80d8
6cde3e6e993126df756e3be5b9ef43540b904644 09-Mar-2010 Chris Lattner <sabre@nondot.org> add a EmitSymbolValue convenience method to MCStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98017 91177308-0d34-0410-b5e6-96231b3b80d8
6e72048add2a6464e038121c6c275da37528aa0a 23-Feb-2010 Kevin Enderby <enderby@apple.com> This is the first patch to put the needed bits in place to eventually allow code
to be aligned with optimal nops. This patch does not change any functionality
and when the compiler is changed to use EmitCodeAlignment() it should also not
change the resulting output. Once the compiler change is made and everything
looks good the next patch with the table of optimal X86 nops will be added to
WriteNopData() changing the output. There are many FIXMEs in this patch which
will be removed when we have better target hooks (coming soon I hear).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96963 91177308-0d34-0410-b5e6-96231b3b80d8
fb76fe09297ee292129e44d723127f2408602a3d 22-Feb-2010 Dan Gohman <gohman@apple.com> Fix various doxygen warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96779 91177308-0d34-0410-b5e6-96231b3b80d8
2be2fd073003c0988723d2894dfb117ad90be11b 13-Feb-2010 Daniel Dunbar <daniel@zuster.org> MCAssembler: Switch MCAsmFixup to storing MCFixupKind instead of just a size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96094 91177308-0d34-0410-b5e6-96231b3b80d8
0bcf074867d4d366f7988a219c7a53265fcb4f23 13-Feb-2010 Daniel Dunbar <daniel@zuster.org> MCAssembler: Sink fixup list into MCDataFragment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96093 91177308-0d34-0410-b5e6-96231b3b80d8
a4766d7af91b7e25151b3e97a0831b3615d2abc3 13-Feb-2010 Daniel Dunbar <daniel@zuster.org> MCAssembler: Switch MCFillFragment to only taking constant values. Symbolic expressions can always be emitted as data + fixups.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96092 91177308-0d34-0410-b5e6-96231b3b80d8
3a30b827a5c9bf0ed8f31177b6e447083ce9afec 13-Feb-2010 Daniel Dunbar <daniel@zuster.org> MCAssembler: Start applying fixups in the data section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96090 91177308-0d34-0410-b5e6-96231b3b80d8
b7c3a4b195597848e7c2559937914ae1087f3131 13-Feb-2010 Daniel Dunbar <daniel@zuster.org> MCAssembler: Add assorted dump() methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96089 91177308-0d34-0410-b5e6-96231b3b80d8
42cefa1ea34bfe01b3073d27a1e78f1c1d75cedc 12-Feb-2010 Chris Lattner <sabre@nondot.org> doxygenize some comments, patch by Peter Collingbourne!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96018 91177308-0d34-0410-b5e6-96231b3b80d8
7e85180d15c4d5a451fbc078f7194a41c6230a57 11-Feb-2010 Chris Lattner <sabre@nondot.org> add a new MCInstPrinter::getOpcodeName interface, when it is
implemented, llvm-mc --show-inst now uses it to print the
instruction opcode as well as the number.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95929 91177308-0d34-0410-b5e6-96231b3b80d8
cb7d743b4242345fa1081223b021b1504dce6fb7 11-Feb-2010 Daniel Dunbar <daniel@zuster.org> MC: Move assembler-backend's fixup list into the fragment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95926 91177308-0d34-0410-b5e6-96231b3b80d8
27ade18431a3504b412e6359e80c9b88e3b0f932 11-Feb-2010 Daniel Dunbar <daniel@zuster.org> MC: Move MCSectionData::Fixup out to MCAsmFixup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95925 91177308-0d34-0410-b5e6-96231b3b80d8
8d31de62680f28ac13594a14dde46216c82a3708 11-Feb-2010 Chris Lattner <sabre@nondot.org> make getFixupKindInfo return a const reference, allowing
the tables to be const. Teach MCCodeEmitter to handle
the target-indep kinds so that we don't crash on them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95924 91177308-0d34-0410-b5e6-96231b3b80d8
e3e7a369f20af66a96830d8bfe52668c9e2e1fa1 10-Feb-2010 Chris Lattner <sabre@nondot.org> add a virtual dtor to MCTargetExpr, hopefully silencing some warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95810 91177308-0d34-0410-b5e6-96231b3b80d8
f451cb870efcf9e0302d25ed05f4cac6bb494e42 10-Feb-2010 Dan Gohman <gohman@apple.com> Fix "the the" and similar typos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95781 91177308-0d34-0410-b5e6-96231b3b80d8
5d5a1e13a129e18ee6031fe6354acd2ab4d39f37 10-Feb-2010 Daniel Dunbar <daniel@zuster.org> MC: Switch MCFixup to just hold an MCExpr pointer instead of index into the
MCInst it came from.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95767 91177308-0d34-0410-b5e6-96231b3b80d8
4c6e18aefebf88b5602458c186cd395e22011f0a 10-Feb-2010 Daniel Dunbar <daniel@zuster.org> Fix a signed comparison warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95766 91177308-0d34-0410-b5e6-96231b3b80d8
37145b6e4ce1984b54d7fb79116d57e203437136 10-Feb-2010 Chris Lattner <sabre@nondot.org> "fixup" a comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95754 91177308-0d34-0410-b5e6-96231b3b80d8
5532cf44a012149ce3afce43dbd0651b4d87a505 10-Feb-2010 Daniel Dunbar <daniel@zuster.org> llvm-mc: Remove --show-fixups and always show as part of --show-encoding.

Also, fix a silly memory leak.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95752 91177308-0d34-0410-b5e6-96231b3b80d8
5d672cfab096390690a1a5f33b0057c4cf252c55 10-Feb-2010 Chris Lattner <sabre@nondot.org> Add ability for MCInstPrinters to add comments for instructions.
Enhance the x86 backend to show the hex values of immediates in
comments when they are large. For example:

movl $1072693248, 4(%esp) ## imm = 0x3FF00000

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95728 91177308-0d34-0410-b5e6-96231b3b80d8
6b71653c82f86626f64356c308d7356a17b05834 10-Feb-2010 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add --show-fixups option, for displaying the instruction fixup information in the asm comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95710 91177308-0d34-0410-b5e6-96231b3b80d8
73c557458c0e28899f37c557bcaf36c2b6701260 09-Feb-2010 Daniel Dunbar <daniel@zuster.org> MC: First cut at MCFixup, for getting fixup/relocation information out of an MCCodeEmitter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95708 91177308-0d34-0410-b5e6-96231b3b80d8
8a872d0215b04e13f0c63274d385ebc5ad9f167e 09-Feb-2010 Chris Lattner <sabre@nondot.org> stop using reserved identifiers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95630 91177308-0d34-0410-b5e6-96231b3b80d8
159f527cb269002de85e671023b9231a2c8792e9 09-Feb-2010 Dan Gohman <gohman@apple.com> Add explicit keywords.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95626 91177308-0d34-0410-b5e6-96231b3b80d8
036c130e90eb5c93b0dc0a70ad07b9343623c2a8 09-Feb-2010 Dan Gohman <gohman@apple.com> Document that MCExpr::Mod is actually remainder.

Document that MCExpr::Div, Mod, and the comparison operators are all
signed operators.

Document that the comparison operators' results are target-dependent.

Document that the behavior of shr is target-dependent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95619 91177308-0d34-0410-b5e6-96231b3b80d8
df9c4380ee7e60c1de5cae32685b113170b1faa2 08-Feb-2010 Chris Lattner <sabre@nondot.org> don't make hte dtor private or we can't construct the class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95587 91177308-0d34-0410-b5e6-96231b3b80d8
5d917a8952c09a345180ec36f0df4ee5dd5eddea 08-Feb-2010 Chris Lattner <sabre@nondot.org> add scaffolding for target-specific MCExprs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95559 91177308-0d34-0410-b5e6-96231b3b80d8
73163f875ad7e5d56aa7d0d29509eb1e04542742 05-Feb-2010 Daniel Dunbar <daniel@zuster.org> MC: Change default comment column to 40 characters.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95378 91177308-0d34-0410-b5e6-96231b3b80d8
9dee8e3009408fd08c656558397a8ac8604139ba 03-Feb-2010 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add --show-inst option, for showing the MCInst inline with the assembly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95227 91177308-0d34-0410-b5e6-96231b3b80d8
ac7798e9062f9bc371709ed445e1b3153b581e9a 03-Feb-2010 Chris Lattner <sabre@nondot.org> Hook up -filetype=obj through the MachO streamer. Here's a demo:

$ cat t.ll
@g = global i32 42
$ llc t.ll -o t.o -filetype=obj
$ nm t.o
00000000 D _g

There is still a ton of work left. Instructions are not being encoded
yet apparently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95162 91177308-0d34-0410-b5e6-96231b3b80d8
56591ab218639d8a6e4c756ca37adaf20215c3b6 03-Feb-2010 Chris Lattner <sabre@nondot.org> refactor code so that LLVMTargetMachine creates the asmstreamer and
mccontext instead of having AsmPrinter do it. This allows other
types of MCStreamer's to be passed in.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95155 91177308-0d34-0410-b5e6-96231b3b80d8
e1ec617c6abf0b9dc1eecbbfe483bda3bb2b7795 02-Feb-2010 Daniel Dunbar <daniel@zuster.org> MC/Mach-O: Set SOME_INSTRUCTIONS bit for sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95135 91177308-0d34-0410-b5e6-96231b3b80d8
cee63322eaccc2f1067bdf5eab506e440f867da1 26-Jan-2010 Chris Lattner <sabre@nondot.org> Eliminate SetDirective, and replace it with HasSetDirective.
Default HasSetDirective to true, since most targets have it.

The targets that claim to not have it probably do, or it is
spelled differently. These include Blackfin, Mips, Alpha, and
PIC16. All of these except pic16 are normal ELF targets, so
they almost certainly have it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94585 91177308-0d34-0410-b5e6-96231b3b80d8
2e2563bf8e0f0a7f8c923000c0206855f16968b2 26-Jan-2010 Rafael Espindola <rafael.espindola@gmail.com> Emit .comm alignment in bytes but .align in powers of 2 for ARM ELF.

Original patch by Sandeep Patel and updated by me.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94582 91177308-0d34-0410-b5e6-96231b3b80d8
6a315c358ca35625ffd50fdc74556acb26ec7396 26-Jan-2010 Chris Lattner <sabre@nondot.org> eliminate MCAsmInfo::NeedsSet: we now just use .set on any platform
that has it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94581 91177308-0d34-0410-b5e6-96231b3b80d8
718fb59801320b8cb22363d115b5fc5ec40dc1f5 25-Jan-2010 Chris Lattner <sabre@nondot.org> mcstreamerize gprel32 emission.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94452 91177308-0d34-0410-b5e6-96231b3b80d8
78f485afb723121eedf4b6907ae6eb53da8af03c 25-Jan-2010 Chris Lattner <sabre@nondot.org> rename MAI::PICJumpTableDirective to MAI::GPRel32Directive to
make it clear what it is, instead of how it is used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94448 91177308-0d34-0410-b5e6-96231b3b80d8
cba386ccac87c2446579ef235d2b4dc7951c0941 25-Jan-2010 Chris Lattner <sabre@nondot.org> remove JumpTableDirective, it is always null.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94445 91177308-0d34-0410-b5e6-96231b3b80d8
a6594fc7156c0afbe6fd5a6aab9b099aaf950c53 25-Jan-2010 Chris Lattner <sabre@nondot.org> mcstreamerize .file and .file. This also fixes an issue where the
normal form of .file would fail if the filename had a weird character
in it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94437 91177308-0d34-0410-b5e6-96231b3b80d8
ed0ab15170f0f8fc4269d58757378bc8726b56a1 25-Jan-2010 Chris Lattner <sabre@nondot.org> add symbol attribute support for the ELF .type directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94435 91177308-0d34-0410-b5e6-96231b3b80d8
99328add833807f12a4950c7de29fb2a5df04703 25-Jan-2010 Chris Lattner <sabre@nondot.org> emit the .size directive for global variables on ELF through

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94416 91177308-0d34-0410-b5e6-96231b3b80d8
6559d7688e24e204af273a1e1252639320a7b309 25-Jan-2010 Chris Lattner <sabre@nondot.org> all supported target now have aligned common support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94413 91177308-0d34-0410-b5e6-96231b3b80d8
9eb158d5b4cd4f6fc80912e2dd77bdf13c3ca0e7 23-Jan-2010 Chris Lattner <sabre@nondot.org> mcize lcomm, simplify .comm, extend both to support 64-bit sizes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94299 91177308-0d34-0410-b5e6-96231b3b80d8
f9f93e4388962b678fd59b7af5212d4cc0d38be2 23-Jan-2010 Chris Lattner <sabre@nondot.org> resolve a fixme: the "nonexecutable stack directive" is actually
a .section. Switch to it with SwitchSection.

However, I think that this directive should be safe on any ELF target.
If so, we should hoist it up out of the X86 and SystemZ targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94298 91177308-0d34-0410-b5e6-96231b3b80d8
152a29bfa6fa505182658d046bc75626e10d67c3 23-Jan-2010 Chris Lattner <sabre@nondot.org> mcize visibility directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94295 91177308-0d34-0410-b5e6-96231b3b80d8
a5ad93a10a5435f21090b09edb6b3a7e44967648 23-Jan-2010 Chris Lattner <sabre@nondot.org> move the various directive enums out of the MCStreamer class
into a new MCDirectives.h file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94294 91177308-0d34-0410-b5e6-96231b3b80d8
3a9be0ee36fe2143f514d28315f3dc1bda132b2e 23-Jan-2010 Chris Lattner <sabre@nondot.org> mcstreamerize .no_dead_strip and .reference for static ctors/dtors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94290 91177308-0d34-0410-b5e6-96231b3b80d8
3924868a957d5a6d468b61741cbb7db77324d1f6 23-Jan-2010 Chris Lattner <sabre@nondot.org> mcize jump table and constant pool entry labels, .local on elf,
and some .weak directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94284 91177308-0d34-0410-b5e6-96231b3b80d8
5d74e1f64445713cca863af03b8b6ab39321046e 22-Jan-2010 Sean Callanan <scallanan@apple.com> Added a Register token to AsmToken and the appropriate
accessor method for its value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94241 91177308-0d34-0410-b5e6-96231b3b80d8
0fd90fd8d1c2143a763dee509c66a5b3c74088b1 22-Jan-2010 Chris Lattner <sabre@nondot.org> Convert some more random-comment-printing stuff to use
AddComment and GetCommentOS. Add a blank line between globals
(even in non-verbose mode) to make the assembly more readable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94202 91177308-0d34-0410-b5e6-96231b3b80d8
d79d9dce47d505369662ae5111dba24f9ccdef68 22-Jan-2010 Chris Lattner <sabre@nondot.org> add a new MCAsmStreamer::GetCommentOS method to simplify stuff
that doesn't want to use twines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94199 91177308-0d34-0410-b5e6-96231b3b80d8
d32c7cfa248f685e6e3064c0958dc2f0c31a4df6 22-Jan-2010 Chris Lattner <sabre@nondot.org> rename addComment -> AddComment for consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94190 91177308-0d34-0410-b5e6-96231b3b80d8
a46918d2b1b63aa3db94aa10b9ea70209b84e274 22-Jan-2010 Benjamin Kramer <benny.kra@googlemail.com> Simplify some uses of str(n)cmp with StringRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94189 91177308-0d34-0410-b5e6-96231b3b80d8
86e2211d0a496f470ea1d320161c8dc43593c5c6 22-Jan-2010 Chris Lattner <sabre@nondot.org> Add the ability for MCStreamer to emit comments on the same line as directives.
Switch over the asm-verbose comment for double values to use it. We now get:

.long 343597384 ## double 1.231200e+02
.long 1079953326

For example, note that the comment is on the same line as the .long. Woo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94166 91177308-0d34-0410-b5e6-96231b3b80d8
07404415ab97883b80d0dd87f1c5308e4eccbfd4 22-Jan-2010 Chris Lattner <sabre@nondot.org> pass "-fasm-verbose" into createAsmStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94165 91177308-0d34-0410-b5e6-96231b3b80d8
be343b3ca3f53d5d5e29f3591af8b9bb831daa98 22-Jan-2010 Chris Lattner <sabre@nondot.org> move some files out of the llvm-mc tool into the MCParser library so
other tools can link it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94131 91177308-0d34-0410-b5e6-96231b3b80d8
c6ef277a0b8f43af22d86aea9d5053749cacfbbb 22-Jan-2010 Chris Lattner <sabre@nondot.org> create a new MCParser library and move some stuff into it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94129 91177308-0d34-0410-b5e6-96231b3b80d8
79036e421f22cf3f661386c560fda36aa5bd04cc 20-Jan-2010 Sean Callanan <scallanan@apple.com> Modified MCAsmLexer to return error information upward
rather than printing it locally, reducing its dependence
on SourceMgr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94041 91177308-0d34-0410-b5e6-96231b3b80d8
1658202529cf371e7e5f1a46d9ef80def5b3c3e0 20-Jan-2010 Chris Lattner <sabre@nondot.org> give createAsmStreamer an 'isLittleEndian' argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93986 91177308-0d34-0410-b5e6-96231b3b80d8
8eeba35babf3114966fc4e6e8522057e46b610db 20-Jan-2010 Chris Lattner <sabre@nondot.org> revert 93934, removing the MCAsmInfo endianness bit. I can't
stomache MCAsmInfo having this, and I found a better solution to
this layering issue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93985 91177308-0d34-0410-b5e6-96231b3b80d8
c7b8814bb4f2e6052060d6118d3bc3b66f5c5b0b 19-Jan-2010 Chris Lattner <sabre@nondot.org> give MCAsmInfo a 'has little endian' bit. This is unfortunate, but
I really want clients of the streamer to be able to say "emit this
64-bit integer" and have it get broken down right by the streamer.

I may change this in the future, we'll see how it works out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93934 91177308-0d34-0410-b5e6-96231b3b80d8
32ae3fe0ba469240753e2342e36485f7c9acfb5c 19-Jan-2010 Chris Lattner <sabre@nondot.org> add a new EmitIntValue method that MCStreamer impls can optionally define
and that clients can use.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93923 91177308-0d34-0410-b5e6-96231b3b80d8
6449abfbc86310edbbe0b5ffb3fad5c14301307f 19-Jan-2010 Chris Lattner <sabre@nondot.org> eliminate AsmPrinter::EmitZeros: just use MCStreamer directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93918 91177308-0d34-0410-b5e6-96231b3b80d8
18b8323de70e3461b5d035e3f9e4f6dfaf5e674b 19-Jan-2010 Sean Callanan <scallanan@apple.com> Promoted the getTok() method to MCAsmParser so that
the two token accessor functions are declared consistently.
Modified the clients of MCAsmParser to reflect this change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93916 91177308-0d34-0410-b5e6-96231b3b80d8
b9a25b7744ed12b80031426978decce3d4cebbd7 19-Jan-2010 Sean Callanan <scallanan@apple.com> Propagated the parser-side Lex function's declaration to
MCAsmParser, and changed the target-specific AsmParsers
to use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93900 91177308-0d34-0410-b5e6-96231b3b80d8
aaec205b87637cd0d59d4f11630db603686eb73d 19-Jan-2010 Chris Lattner <sabre@nondot.org> Generalize mcasmstreamer data emission APIs to take an address space
identifier. There is no way to work around it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93896 91177308-0d34-0410-b5e6-96231b3b80d8
ddf6bdde44287b5b559bc403a02ff971e15e8303 19-Jan-2010 Chris Lattner <sabre@nondot.org> add a "MCStreamer::EmitFill" method, and move the default implementation
(which just iteratively emits bytes) to MCStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93888 91177308-0d34-0410-b5e6-96231b3b80d8
f03ffd13f8f31fb8ead74b94eb2ef71b80ac7739 19-Jan-2010 Chris Lattner <sabre@nondot.org> remove MAI::ZeroDirectiveSuffix, which is only used by MASM,
which we don't support anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93886 91177308-0d34-0410-b5e6-96231b3b80d8
814819f6ea7fb0638fe73920299fda0da941a59e 19-Jan-2010 Chris Lattner <sabre@nondot.org> stop using the .lcomm pseudoop on darwin, instead, directly use the
.zerofill directive. Streamerize its generation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93868 91177308-0d34-0410-b5e6-96231b3b80d8
41eb8b47717e1fe1a6d0e99ec1b4e890091f77aa 19-Jan-2010 Chris Lattner <sabre@nondot.org> hookize the cygwin ".linkonce" directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93855 91177308-0d34-0410-b5e6-96231b3b80d8
7517b249caa793a9a01e4b6aff9c47fd88a153cc 19-Jan-2010 Chris Lattner <sabre@nondot.org> add a bool for whether .lcomm takes an alignment instead of basing this on "isdarwin".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93852 91177308-0d34-0410-b5e6-96231b3b80d8
71eae713153e564ec743c5c4162ff258c255de78 19-Jan-2010 Chris Lattner <sabre@nondot.org> move production of .reference directives for static ctor/dtor list on
darwin into common code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93849 91177308-0d34-0410-b5e6-96231b3b80d8
ce8749e445fdd0493758932874bad50293647df9 19-Jan-2010 Chris Lattner <sabre@nondot.org> make TLOF subclassify BSS based on linkage type into private, external
and everything else (weak).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93846 91177308-0d34-0410-b5e6-96231b3b80d8
a3839bc3714e6a84222f45cf4c0f1a20a88b10cd 19-Jan-2010 Chris Lattner <sabre@nondot.org> introduce a section kind for common linkage. Use this to slightly
simplify and commonize some of the asmprinter logic for globals.

This also avoids printing the MCSection for .zerofill, which broke
the llvm-gcc build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93843 91177308-0d34-0410-b5e6-96231b3b80d8
aac138e84dee1cb3ffc1035b2a1e4361fe0b4f80 19-Jan-2010 Chris Lattner <sabre@nondot.org> Cleanup handling of .zerofill on darwin:

1. TargetLoweringObjectFileMachO should decide if something
goes in zerofill instead of having every target do it.
2. TargetLoweringObjectFileMachO should assign said symbols to
the right MCSection, the asmprinters should just emit to the
right section.
3. Since all zerofill stuff goes through mcstreamer anymore,
MAI can have a bool "haszerofill" instead of having the textual
directive to emit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93838 91177308-0d34-0410-b5e6-96231b3b80d8
aad30363fb410c3e5e08756d972be77833593791 18-Jan-2010 Chris Lattner <sabre@nondot.org> switch x86 zerofill emission over to use MCStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93702 91177308-0d34-0410-b5e6-96231b3b80d8
8cb9a3b13f3226b7e741768b69d26ecd6b5231f1 18-Jan-2010 Chris Lattner <sabre@nondot.org> remove the MAI argument to MCExpr::print and switch overthing to use << when printing them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93699 91177308-0d34-0410-b5e6-96231b3b80d8
10b318bcb39218d2ed525e4862c854bc8d1baf63 17-Jan-2010 Chris Lattner <sabre@nondot.org> now that MCSymbol::print doesn't use it's MAI argument, we can
remove it and change all the code that prints MCSymbols to use
<< instead, which is much simpler and cleaner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93695 91177308-0d34-0410-b5e6-96231b3b80d8
acd03ae6791fc0fb9f1b05247a1dc082b46b8d8b 17-Jan-2010 Chris Lattner <sabre@nondot.org> Get MCSymbol out of the mangling business, and move all the logic
to Mangler. Now MCSymbol just decides whether to slap quotes around
a symbol when printing it.

This also fixes some weirdness where two MCSymbols could be created
for the same symbol, if one needed to be mangled and got mangled to
the other one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93690 91177308-0d34-0410-b5e6-96231b3b80d8
54482b472a888c9efe003ad694ecf47b21878f0e 15-Jan-2010 Chris Lattner <sabre@nondot.org> fix a bug in range information for $42, eliminate an
unneeded argument from ParseExpression.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93536 91177308-0d34-0410-b5e6-96231b3b80d8
b4307b33705ef9e660db640b2f70d6246aa51165 15-Jan-2010 Chris Lattner <sabre@nondot.org> extend MCAsmParser::ParseExpression and ParseParenExpression
to return range information for subexpressions. Use this to
provide range info for several new X86Operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93534 91177308-0d34-0410-b5e6-96231b3b80d8
3581d662e9c39b38c1cd8c243bbf7f03869f30de 15-Jan-2010 Jeffrey Yasskin <jyasskin@google.com> Make sure include/llvm/MC/MCParsedAsmOperand.h can be compiled alone.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93492 91177308-0d34-0410-b5e6-96231b3b80d8
9d3c755fd6bf33335fad66dca9a629c630fc3bf2 14-Jan-2010 Chris Lattner <sabre@nondot.org> add virtual methods to get the start/end of a MCParsedAsmOperand,
the default implementation returns "unknown".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93470 91177308-0d34-0410-b5e6-96231b3b80d8
f007e853e26845cd6866b52d646455fc69f4e0af 14-Jan-2010 Chris Lattner <sabre@nondot.org> prune #includes in TargetAsmParser.h
Pass in SMLoc of instr opcode into ParseInstruction.
Make AsmToken be a class, not a struct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93457 91177308-0d34-0410-b5e6-96231b3b80d8
45220a84394758c86cc29ee0e3fe6738946fbcd0 14-Jan-2010 Chris Lattner <sabre@nondot.org> introduce the MCParsedAsmOperand class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93454 91177308-0d34-0410-b5e6-96231b3b80d8
4564ec9ca7a01cea24b6491ffd90268bf2aa509c 13-Jan-2010 Chris Lattner <sabre@nondot.org> expose a static function as a static method on the MCSymbol class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93350 91177308-0d34-0410-b5e6-96231b3b80d8
cabdd7425d30f7eb659ecb0cc5efbc4052dd78a8 19-Dec-2009 Douglas Gregor <dgregor@apple.com> Fix a bunch of little errors that Clang complains about when its being pedantic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91764 91177308-0d34-0410-b5e6-96231b3b80d8
2928c83b010f7cfdb0f819199d806f6942a7d995 06-Nov-2009 Daniel Dunbar <daniel@zuster.org> Pass StringRef by value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86251 91177308-0d34-0410-b5e6-96231b3b80d8
cf3f89249deabb47c48f21abe3dcf44dbff3401f 30-Oct-2009 Dan Gohman <gohman@apple.com> Remove a redundant copy constructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85547 91177308-0d34-0410-b5e6-96231b3b80d8
8b67f774e9c38b7718b2b300b628388f966df4e0 26-Oct-2009 Chandler Carruth <chandlerc@gmail.com> Move DataTypes.h to include/llvm/System, update all users. This breaks the last
direct inclusion edge from System to Support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85086 91177308-0d34-0410-b5e6-96231b3b80d8
7c5b021793e8c8184c655040ea5e169b55c55063 20-Oct-2009 Chris Lattner <sabre@nondot.org> add a twine version of MCContext::GetOrCreateSymbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84561 91177308-0d34-0410-b5e6-96231b3b80d8
7eb85194f2b07bc7ba3f274fc00dc389b77b63bf 16-Oct-2009 Daniel Dunbar <daniel@zuster.org> Minor formatting tweaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84235 91177308-0d34-0410-b5e6-96231b3b80d8
1253a6fa3b0d79dc6ea25f2578f6473219d40047 16-Oct-2009 Daniel Dunbar <daniel@zuster.org> MC: Switch assembler API to using MCExpr instead of MCValue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84234 91177308-0d34-0410-b5e6-96231b3b80d8
e00b011e6a2597fcc3da88da91a8ffda6eebfcda 16-Oct-2009 Daniel Dunbar <daniel@zuster.org> MC: Remove unneeded context argument to MCExpr::Evaluate*.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84233 91177308-0d34-0410-b5e6-96231b3b80d8
7c3600de949347bf5ea6369b2546fac15bd96415 16-Oct-2009 Daniel Dunbar <daniel@zuster.org> MC: Move assembler variable values from MCContext to MCSymbol.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84229 91177308-0d34-0410-b5e6-96231b3b80d8
e579849652f2ba062e6c91a3af4d9a3843411b44 16-Oct-2009 Daniel Dunbar <daniel@zuster.org> MC: Switch MCContext value table to storing MCExprs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84228 91177308-0d34-0410-b5e6-96231b3b80d8
c6f729ed5519cdf398ca4039dbdbea4f81433ec0 18-Sep-2009 Anton Korobeynikov <asl@math.spbu.ru> Allow symbols to start from the digit if target requests it. This allows, e.g. pinning
variables to specified absolute address. Make use of this feature for MSP430.
This unbreaks PR4776.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82227 91177308-0d34-0410-b5e6-96231b3b80d8
8c6ed05157e9c97ff8f3ccb211dd797e53228da1 16-Sep-2009 Chris Lattner <sabre@nondot.org> Big change #1 for personality function references:
Eliminate the PersonalityPrefix/Suffix & NeedsIndirectEncoding
fields from MAI: they aren't part of the asm syntax, they are
related to the structure of the object file.

To replace their functionality, add a new
TLOF::getSymbolForDwarfGlobalReference method which asks targets
to decide how to reference a global from EH in a pc-relative way.

The default implementation just returns the symbol. The default
darwin implementation references the symbol through an indirect
$non_lazy_ptr stub. The bizarro x86-64 darwin specialization
handles the weird "foo@GOTPCREL+4" hack.

DwarfException.cpp now uses this to emit the reference to the
symbol in the right way, and this also eliminates another
horrible hack from DwarfException.cpp:

- if (strcmp(MAI->getPersonalitySuffix(), "+4@GOTPCREL"))
- O << "-" << MAI->getPCSymbol();

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81991 91177308-0d34-0410-b5e6-96231b3b80d8
4f3e7aa154577c86791908e73a9fec075fdea0ba 16-Sep-2009 Chris Lattner <sabre@nondot.org> add a helper method for creating MCSymbol and MCSymbolRefExpr at
the same time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81984 91177308-0d34-0410-b5e6-96231b3b80d8
bfd1e50c4f51e5f22ba68f28172b0ed9ab66a61a 16-Sep-2009 Chris Lattner <sabre@nondot.org> remove some horrible MAI hooks which fortunately turn out to be always empty.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81946 91177308-0d34-0410-b5e6-96231b3b80d8
90edac0e8b35f766599362b6301863229f0ddcdb 14-Sep-2009 Chris Lattner <sabre@nondot.org> Change MCAsmStreamer to take an MCInstPrinter instead of a
full AsmPrinter, and change TargetRegistry to keep track
of registered MCInstPrinters.

llvm-mc is still linking in the entire
target foo to get the code emitter stuff, but this is an
important step in the right direction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81754 91177308-0d34-0410-b5e6-96231b3b80d8
c493fb2f4d67bfe4b695d9067eae178ced5970cc 14-Sep-2009 Chris Lattner <sabre@nondot.org> Give MCInstPrinter a MCAsmInfo member, make X86ATTInstPrinter
be a MCInstPrinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81746 91177308-0d34-0410-b5e6-96231b3b80d8
65b0b297db16252835ab4d78f33578baa3ace28a 14-Sep-2009 Chris Lattner <sabre@nondot.org> add a new MCInstPrinter class, move the (trivial) MCDisassmbler ctor inline.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81745 91177308-0d34-0410-b5e6-96231b3b80d8
56d339f68751aee16c032ed646158b992a200335 13-Sep-2009 Chris Lattner <sabre@nondot.org> second part to r81695, I missed a directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81696 91177308-0d34-0410-b5e6-96231b3b80d8
b6a2fc080f47eabdcaabf0101e9ca7c95e9d8bdc 12-Sep-2009 Chris Lattner <sabre@nondot.org> eliminate the "MBBLabel" MCOperand type, and just use a MCSymbol for
MBB labels like everything else.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81628 91177308-0d34-0410-b5e6-96231b3b80d8
892e44a07c2422dedff9c5f0532286e677a64842 11-Sep-2009 Chris Lattner <sabre@nondot.org> default construct MCInst's ctor to 0, which is "PHI" which is invalid for MCInsts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81525 91177308-0d34-0410-b5e6-96231b3b80d8
b8b70521def36d0da103b8a103872f37b3b49aa2 10-Sep-2009 Daniel Dunbar <daniel@zuster.org> MC: Give target specific parsers access to the MCStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81416 91177308-0d34-0410-b5e6-96231b3b80d8
c5ea263a23f4f15587e35c9cb07cf72a9fba7613 10-Sep-2009 Chris Lattner <sabre@nondot.org> remove DebugLoc from MCInst and eliminate "Comment printing" from
the MCInst path of the asmprinter. Instead, pull comment printing
out of the autogenerated asmprinter into each target that uses the
autogenerated asmprinter. This causes code duplication into each
target, but in a way that will be easier to clean up later when more
asmprinter stuff is commonized into the base AsmPrinter class.

This also fixes an xcore strangeness where it inserted two tabs
before every instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81396 91177308-0d34-0410-b5e6-96231b3b80d8
251ef612a812ac99edeab6c08a752bf8ca220921 10-Sep-2009 Sean Callanan <scallanan@apple.com> Added an abstract superclass, MCDisassembler, for
all disassemblers.

Modified the MemoryObject to support 64-bit address
spaces, regardless of the LLVM process's address

Modified the Target class to allow extraction of a

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81392 91177308-0d34-0410-b5e6-96231b3b80d8
65c060064d129e1bacc9204fd032fe81c4c669c4 09-Sep-2009 Chris Lattner <sabre@nondot.org> add a gross hack to get "SrcLine" comments to show up with the
new asmprinter. Differently gross hack coming next.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81379 91177308-0d34-0410-b5e6-96231b3b80d8
fb0f0dedd74dab13737a77671a724ee88465f5da 05-Sep-2009 Kevin Enderby <enderby@apple.com> Added AsmToken enum constants to MCAsmLexer.h for '[', ']', '{', and '}' in
preparation of supporting other targets. Then changed the lexer to parse these
as tokens.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81050 91177308-0d34-0410-b5e6-96231b3b80d8
9823ca971d5cb475401e59fde244caf5087c74a1 04-Sep-2009 Kevin Enderby <enderby@apple.com> Added the AsmToken::Hash enum constant to MCAsmLexer.h in preparation of
supporting other targets. Changed the code to pass MCAsmInfo to the parser
and the lexer. Then changed the lexer to use CommentString from MCAsmInfo
instead of a literal '#' character.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81046 91177308-0d34-0410-b5e6-96231b3b80d8
7b4608dfa018455021050ccd31d3c49aaecf7ff6 03-Sep-2009 Kevin Enderby <enderby@apple.com> Removed the non-target independent AsmToken::Register enum constant
from MCAsmLexer.h in preparation of supporting other targets. Changed the
X86AsmParser code to reflect this by removing AsmLexer::LexPercent and looking
for AsmToken::Percent when parsing in places that used AsmToken::Register.
Then changed X86ATTAsmParser::ParseRegister to parse out registers as an
AsmToken::Percent followed by an AsmToken::Identifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80929 91177308-0d34-0410-b5e6-96231b3b80d8
684c593d05db0bd277268fc9d8c05bce138c745a 03-Sep-2009 Chris Lattner <sabre@nondot.org> Thread an MCAsmInfo pointer through the various MC printing APIs,
and fix a few things using << on MCSymbols to use ->print(). No
functionality change other than unbreaking my previous patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80890 91177308-0d34-0410-b5e6-96231b3b80d8
efbb5330b8d383a393c83d2da5d631c98b0bb3fd 01-Sep-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Store MCSymbolData value as a pointer (to make MSVC happy).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80652 91177308-0d34-0410-b5e6-96231b3b80d8
821e3334ed3390d931f497300e6a5f1dc21bcfb3 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Pass values to MCStreamer as MCExprs, not MCValues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80578 91177308-0d34-0410-b5e6-96231b3b80d8
e2ace509fc1205bed97a5114b13534610d4dbf5e 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Simplify EmitAssignment ('.set' is identical to '=').

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80577 91177308-0d34-0410-b5e6-96231b3b80d8
883f920acb6d347c2be0c937302d621ca21ec9dd 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Remove MCAsmParser::Parse[Paren]RelocatableExpression.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80576 91177308-0d34-0410-b5e6-96231b3b80d8
8c2eebe4074ef218b30d94358f6b2e45c079605c 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Switch MCInst to storing an MCExpr* instead of an MCValue.

Also, use MCInst::print instead of custom code in MCAsmPrinter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80575 91177308-0d34-0410-b5e6-96231b3b80d8
c18274ba9cabd5699452870daae3c2d9accecc37 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add MCAsmParser::Parse[Paren]Expression forms which return an MCExpr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80574 91177308-0d34-0410-b5e6-96231b3b80d8
cb579b3338fe8d9e4424b138f597a4696cb89de3 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Make MCSymbolData symbol member const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80573 91177308-0d34-0410-b5e6-96231b3b80d8
a03a368acca1c5ea7eb7de7a4164cbd22308c82f 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add MCContext to MCAssembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80572 91177308-0d34-0410-b5e6-96231b3b80d8
6ce004dc76a8761a7e1a8830206ccaaf96736615 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add MCAsmParser::getContext.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80571 91177308-0d34-0410-b5e6-96231b3b80d8
87392fde1f261fea161b48886fafbedddb18dcce 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add MCExpr::{dump,print}.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80570 91177308-0d34-0410-b5e6-96231b3b80d8
9643ac55142d40da404caa8e5fedfef2cd7b4afc 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Switch MCExpr construction to using static member functions, and taking the MCContext (which now owns all MCExprs).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80569 91177308-0d34-0410-b5e6-96231b3b80d8
869a5e7d66cdc756608190bff1e837fe5809d16e 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add some doxyment markers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80568 91177308-0d34-0410-b5e6-96231b3b80d8
28c251b54b0b311749f07babe0f6909e71e877bc 31-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Move AsmExpr into MC lib (as MCExpr).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80567 91177308-0d34-0410-b5e6-96231b3b80d8
4a1fadaf5207e46d19c64e5773ff8d9e65e607d7 30-Aug-2009 Daniel Dunbar <daniel@zuster.org> Tweak comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80516 91177308-0d34-0410-b5e6-96231b3b80d8
7092c7e1dcf9d05741b400dd54bbd7d3419773b2 30-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: MCStreamer cleanups. - Remove EmitLocalSymbol, this is unsupported for now.

- Switch Emit{CommonSymbol,Zerofill} to take alignment in bytes (for consistency).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80484 91177308-0d34-0410-b5e6-96231b3b80d8
8f4d146c340c9423271ebd7bb3fd32b880000bc9 28-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Support .comm emission.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80351 91177308-0d34-0410-b5e6-96231b3b80d8
d5a8e98ef627a35284c9b5989664514f8f163968 28-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Support .zerofill emission.
- I'm still trying to figure out the cleanest way to implement this and match the assembler, currently there are some substantial differences.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80347 91177308-0d34-0410-b5e6-96231b3b80d8
edc670f3f2ba629b6803a1a7ed4aa47061afd276 28-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Tweak section alignment and size computation to match 'as' closer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80345 91177308-0d34-0410-b5e6-96231b3b80d8
e6cdbf2f92a753ad547e3287e279bf47585b228d 28-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Emit .lcomm as .zerofill.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80343 91177308-0d34-0410-b5e6-96231b3b80d8
8751b94ffbd9c49df8949a37f78d6bd0be87b256 28-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add const to EmitZeroFill section argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80341 91177308-0d34-0410-b5e6-96231b3b80d8
4fac74950a1ff08b995b366bfb84369c1507faef 27-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Add MCCodeEmitter support, for encoding instructions.
- No relocations yet, of course.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80235 91177308-0d34-0410-b5e6-96231b3b80d8
4b770c20778ccb5d2f304fa73e0522a7ab8c4623 27-Aug-2009 Daniel Dunbar <daniel@zuster.org> Add {MCInst,MCOperand}::{print,dump}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80231 91177308-0d34-0410-b5e6-96231b3b80d8
04baf9094ada38a518ba7eda87d4c478a874dbb1 27-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Tweak MCCodeEmitter skeleton.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80193 91177308-0d34-0410-b5e6-96231b3b80d8
8dcf70080280dcf8d6861f2da9f8f9dd1a61aed6 27-Aug-2009 Daniel Dunbar <daniel@zuster.org> Add missing declarations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80190 91177308-0d34-0410-b5e6-96231b3b80d8
4a0abd80f18f9c2a10bf5b14cd6731d51972a426 27-Aug-2009 Daniel Dunbar <daniel@zuster.org> Sketch TargetRegistry support for MCCodeEmitter abstract interface.
- Of course, nothing actually can provide this interface yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80188 91177308-0d34-0410-b5e6-96231b3b80d8
81e400092f55c2eba157172bfc0dd0df8317638d 27-Aug-2009 Daniel Dunbar <daniel@zuster.org> Try to make MSVC just a little happier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80187 91177308-0d34-0410-b5e6-96231b3b80d8
959fd883346384e742fff049327a6815e36017e0 27-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Don't put assembler temporary labels in the symbol table.
- I moved section creation back into AsmParser. I think policy decisions like
this should be pushed higher, not lower, when possible (in addition the
assembler has flags which change this behavior, for example).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80162 91177308-0d34-0410-b5e6-96231b3b80d8
6009db486e7fba448ccb28dff676c012efade8f0 26-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Set .subsections_via_symbols flag properly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80144 91177308-0d34-0410-b5e6-96231b3b80d8
3f6a960f9c9ad27f2ac573020df414e8b8cdda04 26-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Add support for relocations.
- I haven't really tried to find the "right" way to store the fixups or apply
them, yet. This works, but isn't particularly elegant or fast.

- Still no evaluation support, so we don't actually ever not turn a fixup into
a relocation entry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80089 91177308-0d34-0410-b5e6-96231b3b80d8
be9635569401b9a40984c02c6e171aa9da9ad0a2 26-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Move symbol indices into the MCSymbolData structure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80088 91177308-0d34-0410-b5e6-96231b3b80d8
383cbff0311237bfd60daaa77d07bc9785a07ee8 26-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Change MCContext value table to take const MCSymbol*s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80079 91177308-0d34-0410-b5e6-96231b3b80d8
d644c32a52c36c2e52c91512d156d4332772cb1f 26-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Make MCValue take const MCSymbol*s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80078 91177308-0d34-0410-b5e6-96231b3b80d8
6742e34385bff89b897ef0fc930c4bca9e75ac4a 26-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Add section padding where needed (to align the next section).

Also, simplify some of Mach-O writer code which can now use section addresses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80067 91177308-0d34-0410-b5e6-96231b3b80d8
5e835967dd5dda294d0ef3392f4c1d4a2260f532 26-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Set addresses for symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80065 91177308-0d34-0410-b5e6-96231b3b80d8
e1f62b247c1096b501951ac7253658334c038b65 26-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add MCSection::isDefined()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80057 91177308-0d34-0410-b5e6-96231b3b80d8
415c8cf837439401f2df75d992d7e296d1d6746a 25-Aug-2009 Bill Wendling <isanbard@gmail.com> Revert last patch. We need to put this into TargetLowering. There will be a lot
of EH stuff going into there, so we can wait to add them all then.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80036 91177308-0d34-0410-b5e6-96231b3b80d8
eb2fde2c939892f620de93f56dc21ec0c36824ef 25-Aug-2009 Bill Wendling <isanbard@gmail.com> Comment formatting. Removing of unused #include and type forwarding.

OCD is fun!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80030 91177308-0d34-0410-b5e6-96231b3b80d8
b9e7689c89acf9324fba9242e00a9a4b8a3a83a6 25-Aug-2009 Bill Wendling <isanbard@gmail.com> Add a target asm info hook to specify that particular bits of data in the FDE
should be forced to 32-bits (.long) even on 64-bit architectures. Darwin wants
these bits to be 64-bits (.quad). However, other platforms may disagree.

This is just the info right now and is part of a work-in-progress which needs
this. We'll add the actual *use* of this soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80024 91177308-0d34-0410-b5e6-96231b3b80d8
0c7761b3f98fee270d73f5b9c440fe15e82af263 24-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Preliminary support for indirect symbols.
- The indirect table itself isn't being filled in yet.

- This isn't factored properly and is rather FIXMEd, but at the moment I'm more
focused on figuring out what it needs to do.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79910 91177308-0d34-0410-b5e6-96231b3b80d8
6aff2fbd56d4bc2d6029f7c9bd49a97f6dc01213 24-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Support symbol attributes.
- This is mostly complete, the main thing missing is .indirect_symbol support
(which would be straight-forward, except that the way it is implemented in
'as' makes getting an exact .o match interesting).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79899 91177308-0d34-0410-b5e6-96231b3b80d8
5ec2e6b586bf4029763711d6860b57d312eb2d2e 22-Aug-2009 Chris Lattner <sabre@nondot.org> fix a build error on the clang-i686-linux tester.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79778 91177308-0d34-0410-b5e6-96231b3b80d8
33adcfb4d217f5f23d9bde8ba02b8e48f9605fc5 22-Aug-2009 Chris Lattner <sabre@nondot.org> rename TAI -> MAI, being careful not to make MAILJMP instructions :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79777 91177308-0d34-0410-b5e6-96231b3b80d8
90aa1f92c1e3a0fa9f66197ef851ab995afb37ae 22-Aug-2009 Chris Lattner <sabre@nondot.org> mcasminfo doesn't use std::string

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79774 91177308-0d34-0410-b5e6-96231b3b80d8
2807afa664b579af4c559b3880d6763b9e7e236a 22-Aug-2009 Chris Lattner <sabre@nondot.org> rename COFFMCAsmInfo -> MCAsmInfoCOFF, likewise for darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79773 91177308-0d34-0410-b5e6-96231b3b80d8
82d748d55c549dd055528ed10dbb534618ca8115 22-Aug-2009 Chris Lattner <sabre@nondot.org> move the MCAsmInfo .cpp/.h files into the right
directories and rename them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79768 91177308-0d34-0410-b5e6-96231b3b80d8
af76e592c7f9deff0e55c13dbb4a34f07f1c7f64 22-Aug-2009 Chris Lattner <sabre@nondot.org> Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79763 91177308-0d34-0410-b5e6-96231b3b80d8
3edd9bb7a3da8526eb2f4a5dae2962a987d3d566 22-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Improve symbol table support:
- Honor .globl.

- Set symbol type and section correctly ('nm' now works), and order symbols

- Take care to the string table so that the .o matches 'as' exactly (for ease
of testing).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79740 91177308-0d34-0410-b5e6-96231b3b80d8
f3d2ef0c9712381a105118336975adcfbf733db0 22-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Sketch symbol table support.
- The only .s syntax this honors right now is emitting labels, and some parts
of the symbol table generation are wrong or faked.

- This is enough to get nm to report such symbols... incorrectly, but still.

Also, fixed byte emission to extend the previous fragment if possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79739 91177308-0d34-0410-b5e6-96231b3b80d8
2ae58f2851188c21517d2d0409db1c37dca84b24 22-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Move more logic for writing the Mach-O file into the writer
class, and kill off MCSectionData::FileOffset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79735 91177308-0d34-0410-b5e6-96231b3b80d8
a5441fea1f5d4f86d6211af16dbf7d190f2a3c83 22-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Rename / redefine MCFragment::FileOffset to MCFragment::Offset (the
section offset).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79734 91177308-0d34-0410-b5e6-96231b3b80d8
8906ff1b9dfde28f1ff00706643ca10843b26e01 22-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Clean up some handling of symbol/section association to be more correct
(external was really undefined and there wasn't an explicit representation for
absolute symbols).
- This still needs some cleanup to how the absolute "pseudo" section is dealt
with, but I haven't figured out the nicest approach yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79733 91177308-0d34-0410-b5e6-96231b3b80d8
361ae1d28dfa4c22ddec58b2b742eb514f97c694 22-Aug-2009 Daniel Dunbar <daniel@zuster.org> Make MSVC happy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79689 91177308-0d34-0410-b5e6-96231b3b80d8
d6f761e0eb610936a6b8495360b62696dcd85164 22-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Support .o emission for .org and .align.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79684 91177308-0d34-0410-b5e6-96231b3b80d8
0705fbf52fcaade0c6b9d5d33bec163ee4c2daf4 21-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc/Mach-O: Support byte and fill value emission.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79652 91177308-0d34-0410-b5e6-96231b3b80d8
1f2b32c5c6502c74890c188b0224e4c01ff22da4 21-Aug-2009 Benjamin Kramer <benny.kra@googlemail.com> Fix build on platforms where stdint.h is not implicitly included in the standard headers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79629 91177308-0d34-0410-b5e6-96231b3b80d8
fb4a6b397665df011348ade24a8e38d2219f095a 21-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Start MCAssembler and MCMachOStreamer.

- Together these form the (Mach-O) back end of the assembler.

- MCAssembler is the actual assembler backend, which is designed to have a
reasonable API. This will eventually grow to support multiple object file
implementations, but for now its Mach-O/i386 only.

- MCMachOStreamer adapts the MCStreamer "actions" API to the MCAssembler API,
e.g. converting the various directives into fragments, managing state like
the current section, and so on.

- llvm-mc will use the new backend via '-filetype=obj', which may eventually
be, but is not yet, since I hear that people like assemblers which actually

- The only thing that works at the moment is changing sections. For the time
being I have a Python Mach-O dumping tool in test/scripts so this stuff can
be easily tested, eventually I expect to replace this with a real LLVM tool.

- More doxyments to come.

I assume that since this stuff doesn't touch any of the things which are part of
2.6 that it is ok to put this in not so long before the freeze, but if someone
objects let me know, I can pull it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79612 91177308-0d34-0410-b5e6-96231b3b80d8
dabf07c70a5e13a4560d75667fa5c7db28921a92 18-Aug-2009 Chris Lattner <sabre@nondot.org> Make AsmStreamer maintain a notion of the current section, pushing it up from the
MCAsmStreamer. Based on this, eliminate the current section from AsmPrinter.

While I'm at it, clean up the last of the horrible "switch to null section" stuff
and add an assert. This change is in preparation for completely eliminating

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79324 91177308-0d34-0410-b5e6-96231b3b80d8
975780bb595b57a45a8e6d72d8151b436314ce22 17-Aug-2009 Chris Lattner <sabre@nondot.org> change AsmPrinter to switch sections using AsmStreamer instead of
doing it directly. This requires const'izing a bunch of stuff that
took sections, but this seems like the right semantic thing to do:
emitting a label to a section shouldn't mutate the MCSection object
itself, for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79227 91177308-0d34-0410-b5e6-96231b3b80d8
f3ce009fcb0a04a245c437d86657e9bd61ecc18f 17-Aug-2009 Chris Lattner <sabre@nondot.org> give MCAsmStreamer a TargetAsmInfo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79222 91177308-0d34-0410-b5e6-96231b3b80d8
7d996d907f593d9d1a4c9d79805b2b7adee63f24 15-Aug-2009 Chris Lattner <sabre@nondot.org> add support for target-specific ELF section flags, add a new MCSectionXCore
class which represents the XCore cp/dp section flags. No functionality
change yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79077 91177308-0d34-0410-b5e6-96231b3b80d8
abd7514a68b0687f00d9df73cf5c79cb61ff08b6 14-Aug-2009 Bruno Cardoso Lopes <bruno.cardoso@gmail.com> *try* to use a better name to describe how common symbols are marked on the elf object file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79029 91177308-0d34-0410-b5e6-96231b3b80d8
c22e0b2443afdedb6d9b225b938ad404d63cdbe6 14-Aug-2009 Daniel Dunbar <daniel@zuster.org> Update llvm-mc / MCAsmStreamer to print the instruction using the actual target
specific printer (this only works on x86, for now).
- This makes it possible to do some correctness checking of the parsing and
matching, since we can compare the results of 'as' on the original input, to
those of 'as' on the output from llvm-mc.

- In theory, we could now have an easy ATT -> Intel syntax converter. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78986 91177308-0d34-0410-b5e6-96231b3b80d8
1689e0cf55205042b830fdbe3fc5f7b483997334 14-Aug-2009 Daniel Dunbar <daniel@zuster.org> Add MCSymbol::{print, dump}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78983 91177308-0d34-0410-b5e6-96231b3b80d8
2c11624b65a65fe487f335603dc0bf6372a50a89 14-Aug-2009 Daniel Dunbar <daniel@zuster.org> Add MCValue::{print, dump}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78982 91177308-0d34-0410-b5e6-96231b3b80d8
011e4db845b5c4166142338c77adc8ac03e5e041 14-Aug-2009 Daniel Dunbar <daniel@zuster.org> llvm-mc: Add dummy MCStreamer implementation, (eventually) for use in profiling.
- Currently unused.

- A few other random comment fixes lumped in.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78960 91177308-0d34-0410-b5e6-96231b3b80d8
fdf229eda95a542fc34d5182e1a91a22789ba122 14-Aug-2009 Bruno Cardoso Lopes <bruno.cardoso@gmail.com> Remove HasCrazyBSS and add a flag in TAI to indicate that '.section'
must be emitted for PowerPC-Linux '.bss' section

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78958 91177308-0d34-0410-b5e6-96231b3b80d8
4aa688e9973ec7e80ef60ecbc024c57e769b8cbf 13-Aug-2009 Bruno Cardoso Lopes <bruno.cardoso@gmail.com> Add a method to return if the ELF section contains only common symbols!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78937 91177308-0d34-0410-b5e6-96231b3b80d8
b808588a3a5febe931896b3779d159ba90d836f7 13-Aug-2009 Bruno Cardoso Lopes <bruno.cardoso@gmail.com> Change MCSectionELF to represent a section semantically instead of
syntactically as a string, very similiar to what Chris did with MachO.
The parsing support and validation is not introduced yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78890 91177308-0d34-0410-b5e6-96231b3b80d8
38cff389af1d78bd80df0479ef258493e0c5897e 13-Aug-2009 Chris Lattner <sabre@nondot.org> sink uniquing of sections out of MCContext into the ELF and PECOFF TLOF implementations.

MCContext no longer maintains a string -> section map.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78874 91177308-0d34-0410-b5e6-96231b3b80d8
c9d31524eec562f719d6818508b722b55a787d67 13-Aug-2009 Chris Lattner <sabre@nondot.org> add some comments: MCContext owns the MCSections, but it bump pointer allocates
them, so it doesn't have to explicitly free them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78870 91177308-0d34-0410-b5e6-96231b3b80d8
e309cfa0d8945af47dd798357549c815164d53d6 13-Aug-2009 Chris Lattner <sabre@nondot.org> reject invalid code like:
int x __attribute__((section("_foo, _bar"))) = 4;
int y __attribute__((section("_foo, _bar, 4byte_literals"))) = 1;

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78867 91177308-0d34-0410-b5e6-96231b3b80d8
f9bdeddb96043559c61f176f8077e3b91a0c544f 10-Aug-2009 Chris Lattner <sabre@nondot.org> split MachO section handling stuff out to its out .h/.cpp file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78576 91177308-0d34-0410-b5e6-96231b3b80d8
ff4bc460c52c1f285d8a56da173641bf92d49e3f 10-Aug-2009 Chris Lattner <sabre@nondot.org> Make the big switch: Change MCSectionMachO to represent a section *semantically*
instead of syntactically as a string. This means that it keeps track of the
segment, section, flags, etc directly and asmprints them in the right format.
This also includes parsing and validation support for llvm-mc and
"attribute(section)", so we should now start getting errors about invalid
section attributes from the compiler instead of the assembler on darwin.

Still todo:
1) Uniquing of darwin mcsections
2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h]
3) there are a few FIXMEs, for example what is the syntax to get the
S_GB_ZEROFILL segment type?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78547 91177308-0d34-0410-b5e6-96231b3b80d8