| 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.
rdar://problem/13342023
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176605 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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");
Out.SwitchSection(Ctx.getMachOSection(
"__TEXT", "__text",
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
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");
Out.InitToTextSection();
}
}
Which is much more reasonable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172450 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 251040bc18eedfa56d01fe92836e55cfd8c5d990 |
|
08-Jan-2013 |
Eli Bendersky <eliben@google.com> |
Renamed MCInstFragment to MCRelaxableFragment and added some comments.
No change in functionality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171822 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 082b7e6d367df15abf604b91739bedafe6c84c17 |
|
18-Dec-2012 |
Reed Kotler <rkotler@mips.com> |
EmitDebugLabel should by default be the same as EmitLabel everywhere.
It must be explicity set in MCPureStreamer because otherwise it will
inherit incorrectly from the parent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170383 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| ac3fab4765e07a1fe24bc56271cc5f0f7b51c282 |
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16-Dec-2012 |
NAKAMURA Takumi <geek4civic@gmail.com> |
MCPureStreamer.cpp: Try to fix build, pruning EmitDebugLabel().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170280 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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"
labels.
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:
http://gcc.gnu.org/ml/gcc-patches/2008-08/msg00623.html
http://gcc.gnu.org/ml/gcc-patches/2008-11/msg01273.html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170279 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20121203/158233.html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169626 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169613 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 4d6ccb5f68cd7c6418a209f1fa4dbade569e4493 |
|
20-Jan-2012 |
David Blaikie <dblaikie@gmail.com> |
More dead code removal (using -Wunreachable-code)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148578 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
it.
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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| f7c3b75bc52e66f80842687f445dec51a7a23c64 |
|
29-Nov-2010 |
Rafael Espindola <rafael.espindola@gmail.com> |
Forgot the MCPureStreamer::EmitValue in the previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120270 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|
| 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
/external/llvm/lib/MC/MCPureStreamer.cpp
|