History log of /external/llvm/lib/MC/MCStreamer.cpp
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
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
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
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
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
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
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
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
1d5ad97531a0213f06cc526a0c8ea7b2150f6acc 09-Sep-2013 Bill Wendling <isanbard@gmail.com> Set the encoding to '0' if we don't have an MAB.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190354 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
f0a0d578089572be37063bbe37063edb28148159 27-Aug-2013 Kai Nacke <kai.nacke@redstar.de> Fix wrong code offset for unwind code SET_FPREG.

The code offset for unwind code SET_FPREG is wrong because it is set
to constant 0. The fix is to do the same as for the other unwind
codes: emit a label and later the absolute difference between the
label and the begin of the prologue.
Also enables the failing test case MC/COFF/seh.s

Reviewed by Jim Grosbach, Charles Davis and Nico Rieck.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189309 91177308-0d34-0410-b5e6-96231b3b80d8
5310cdbcc909a7c35d4c7df0fd5703850a9db2a5 08-Jul-2013 Kai Nacke <kai.nacke@redstar.de> Revert: Fix wrong code offset for unwind code SET_FPREG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185793 91177308-0d34-0410-b5e6-96231b3b80d8
ea434e4bca15383418ac65788fdb8bc3b5725fe2 06-Jul-2013 Kai Nacke <kai.nacke@redstar.de> Fix wrong code offset for unwind code SET_FPREG.

The code offset for unwind code SET_FPREG is wrong because it is set
to constant 0. The fix is to do the same as for the other unwind
codes: emit a label and later the absolute difference between the
label and the begin of the prologue.
Also enables the failing test case MC/COFF/seh.s

Reviewed by Charles Davis and Nico Rieck.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185758 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
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
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
8cb6b971601d42a27e40f0f1d4828671441989f5 07-May-2013 Charles Davis <cdavis5x@gmail.com> MCStreamer: Also clear vector of W64UnwindInfos on reset().

Patch by Kai Nacke!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181363 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
242cec5be3b3a715de0535d1a074bb4dff94772f 19-Mar-2013 Jakub Staszak <kubastaszak@gmail.com> Change NULL to 0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177342 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
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
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
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
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171949 91177308-0d34-0410-b5e6-96231b3b80d8
b9d1005e96681b5c8cc1ed959fa129de62933020 04-Jan-2013 Pedro Artigas <partigas@apple.com> small fixes to enable the reuse of the pass manager across multiple modules

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171475 91177308-0d34-0410-b5e6-96231b3b80d8
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:

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170279 91177308-0d34-0410-b5e6-96231b3b80d8
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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170041 91177308-0d34-0410-b5e6-96231b3b80d8
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).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169785 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
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
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
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
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
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
b601ab5cce6c560dff365cd87f6854ea95f76f54 23-Feb-2012 Benjamin Kramer <benny.kra@googlemail.com> Bump SmallString to the minimum required amount for raw_ostream to avoid allocation.

It's is a bit annoying, we should hide this implementation detail better.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151284 91177308-0d34-0410-b5e6-96231b3b80d8
858143816d43e58b17bfd11cb1b57afbd7f0f893 07-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@149967 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
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
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
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
3f4c979e1b1e02e51443cf88f4b7ec47a6865aae 05-Nov-2011 Benjamin Kramer <benny.kra@googlemail.com> Twinify.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143811 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
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
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
2df9f8df9541e7650876413cde555eb3d285be4b 25-Aug-2011 Benjamin Kramer <benny.kra@googlemail.com> Initialize member variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138548 91177308-0d34-0410-b5e6-96231b3b80d8
5fbe5e783ee0c5ae27c17490a752d7e603e84ed2 25-Aug-2011 Evan Cheng <evan.cheng@apple.com> Some autoconf tests use module level inline asm to test compiler's handling of
.cfi_startproc. e.g. libffi:

$ cat confopt.c
asm (".cfi_startproc\n\t.cfi_endproc");

int main () { return 0; }

Teach MC / dwarf emission to handle these cfi directives which essentially
create an empty frame.


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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
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
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
65891533a3b35d7fc8fa807a96b7ee2f09ff22b5 07-Jun-2011 Roman Divacky <rdivacky@freebsd.org> Make EmitIntValue() work properly on big-endian targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132715 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
4eeb7b662b78f5c520fb258b3f9df18b1227cde5 27-May-2011 Charles Davis <cdavis@mines.edu> My attempt at fixing the leak reported by the valgrind buildbots. Valgrind will
still report leaks, but they're spurious now. Valgrind cannot peer into
std::vector objects--or any dynamic array, for that matter--because it doesn't
know how big the array is.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132174 91177308-0d34-0410-b5e6-96231b3b80d8
c2d3022aa6104a21f4368c522ccbf9a4d282b7c6 27-May-2011 Charles Davis <cdavis@mines.edu> Fix inverted conditional in SaveReg and SaveXMM. Err when the frame pointer is
already defined, and err when the PushMachFrame operation isn't the first
operation (if specified at all).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132173 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
40de0e013a456971697491b428fb903570e8766e 24-May-2011 Charles Davis <cdavis@mines.edu> Test basic SEH directive-parsing functionality. Fix a latent bug exposed by
this test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132004 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
edeecbff0e231c04b7222a79a26017a48668f0e2 22-May-2011 Charles Davis <cdavis@mines.edu> Don't allow unaligned offsets and sizes in the Win64 EH directives.
Also, fix threshold for 'Big' register saves.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131830 91177308-0d34-0410-b5e6-96231b3b80d8
81f3830f2ed0b26e8bd7ae62e127db427f9f350d 21-May-2011 Charles Davis <cdavis@mines.edu> Don't allow .seh_handler and .seh_handlerdata directives inside chained
unwind areas.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131795 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
5c2256a5719172273eaef198f92d8af924ff8623 21-May-2011 Charles Davis <cdavis@mines.edu> Set the "LastFrameInst" field when streaming a .seh_setframe directive. This
is needed for an upcoming patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131772 91177308-0d34-0410-b5e6-96231b3b80d8
d0b76d00048352affac4fad0ef005e28f5340b76 20-May-2011 Charles Davis <cdavis@mines.edu> "Implement" the HandlerData Win64 EH method in the base MCStreamer.

There's really nothing to implement. All this really does is swap to a
pseudo-section that later gets written to the unwind info struct. That
needs to be implemented in the object streamers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131734 91177308-0d34-0410-b5e6-96231b3b80d8
78ff647e4471c88c3a3826e7ac24adcd8a9a2073 20-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Looks like OS X assemblers (including MC) don't like

bar = foo
.quad bar

Avoid producing it. Fixes PR9951.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131687 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
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
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
baaa3201681d58434a54f9cedfd600c248dc10e9 15-May-2011 Charles Davis <cdavis@mines.edu> Fix copy-pasto.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131384 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
713c4bfc36260bfc9273d414b14757bd7819f9b1 10-May-2011 Rafael Espindola <rafael.espindola@gmail.com> Add CFIStartSections to the asm printer. Add an assert that at least
one of the sections is created.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131124 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
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
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
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
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.

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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
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.

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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".

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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
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
9c54c14cad22a178553d4e9c73abe10fa6038d70 29-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Remove second return.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122616 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
b4601bd2ffdde372f1323f6b6ec98acd433501ce 29-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Implement cfi_def_cfa_register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122612 91177308-0d34-0410-b5e6-96231b3b80d8
b790a17efba26f4365b5ffb847dd53fde063c48d 29-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Initial .cfi_offset implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122611 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
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.

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3a83c40ab61d5ca624f2bbadd70237c6adbdb304 27-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Add support for the same encodings of the personality function that gnu as

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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.

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818b5f5dd7979b097564f829896353df286127ff 16-Dec-2010 Matt Beaumont-Gay <matthewbg@google.com> Better fix for opt build

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e194b26ffd23aa464324429323647af4fcb7df7b 15-Dec-2010 Matt Beaumont-Gay <matthewbg@google.com> Fix opt -Werror build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121904 91177308-0d34-0410-b5e6-96231b3b80d8
b35d56c2fe39064a33d0e4e7faf5464b6d8a7352 15-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Generalize an assert.

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89b9372605db2ce3b0085c84089e389f7bc1fbdd 10-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Fixed version of 121434 with no new memory leaks.

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f7fd4aa2610f46467369de07f3ec669561d79be0 10-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Revert my previous patch to make the valgrind bots happy.

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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).

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dea914bed9fb1d5c08e944557989ccddb6849000 09-Dec-2010 Devang Patel <dpatel@apple.com> Add assert to catch an attempt to emit .byte 256

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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.

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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 :-(

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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.

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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.

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660b5fc4d019bf22fbe14dfb81c5b59444fa3506 03-Dec-2010 Rafael Espindola <rafael.espindola@gmail.com> Do with uleb the same trick we now do with dwarf line/address advances. This
avoids creating leb128 fragments and speeds up the test in PR8711 to 33s.

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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

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3e03211625bba5bbb70a193c140ebf4dd8388bb7 28-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Avoid code duplication in the many unsupported EmitGPRel32Value implementations.

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cdfecc8759941c2996214070478d30084b79d463 22-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Add basic CFI methods to the streamer interface.

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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.

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3ff57094a7d176a759ddb1e1668489d89064f56c 02-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Add support for expressions in .sleb/.uleb directives.

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484291c27319668ad99cb87def000254357736fb 01-Nov-2010 Rafael Espindola <rafael.espindola@gmail.com> Implement .weakref.

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c095793b4ab027181605c79c9808df12afe45d63 30-Sep-2010 Kevin Enderby <enderby@apple.com> This is the last major patch to implement support for the .loc directive
and output the dwarf line number tables. This contains the code to emit and
encode the dwarf line tables from the previously gathered information in the
MCLineSection objects. This contains all the details to encode the line and
address deltas into the dwarf line table.

To do this an MCDwarfLineAddrFragment has been added.

Also this moves the interface code out of Mach-O streamer into
MCDwarf so it should be useable by other object file formats.

There is now one call to be made from an MCObjectStreamer
EmitInstruction() method:
MCLineEntry::Make(this, getCurrentSection());
to create a line entry after each instruction is assembled.

And one call call to be made from an MCObjectStreamer Finish() method:
MCDwarfFileTable::Emit(this, DwarfLineSection);
when getContext().hasDwarfFiles() is true and is passed a object file specific
MCSection where to emit the dwarf file and the line tables.

This appears to now be correct for 32-bit targets, at least x86. But the
relocation entries for 64-bit Darwin needs some further work which is next
up to work on. So for now the 64-bit Mach-O target does not output the
dwarf file and line tables.

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1674b0b0e4972b844833f253286cbf99a6e99d6e 02-Sep-2010 Benjamin Kramer <benny.kra@googlemail.com> Add AsmParser support for the ELF .previous directive. Patch by Roman Divacky.

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e5c8d95f1a1facbaeb88f5d1a406b19d0df06f93 19-Jul-2010 Michael J. Spencer <bigcheesegs@gmail.com> _[A-Z] identifiers are reserved for the implementation.

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ab3b3651add0915a5a051b177029ad117a877f52 20-May-2010 Matt Fleming <matt@console-pimps.org> Grammar fix. This is a test commit.

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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.

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3580dea910d622f2a6dbb72e97f5f7d0ef979542 03-Apr-2010 Chris Lattner <sabre@nondot.org> add <cstdlib> header for abort() on linux builders.

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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.

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6cde3e6e993126df756e3be5b9ef43540b904644 09-Mar-2010 Chris Lattner <sabre@nondot.org> add a EmitSymbolValue convenience method to MCStreamer.

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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.

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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.

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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.

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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.

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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

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a11af531ec48ad84f790b9511f003ac5c934a999 24-Jun-2009 Daniel Dunbar <daniel@zuster.org> Start MCAsmStreamer implementation.

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