MC: Implement COFF .linkonce directive

llvm-svn: 185753

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.

llvm-svn: 184175

Silence warning in Release builds.

llvm-svn: 184059

Replace use of PathV1.h in MCContext.cpp.

GetCurrentDirectory is now unused. Remove it.

llvm-svn: 184003

Don't use PathV1.h in Signals.h.

llvm-svn: 183947

Debug Info: use SmallVector instead of std::vector in MCDwarfDirsCUMap and MCDwarfFilesCUMap

llvm-svn: 176893

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 e

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

llvm-svn: 176605

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clear new map and initialize new variable

llvm-svn: 175578

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.

rdar://problem/1

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.

rdar://problem/13067005

llvm-svn: 174445

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Formatting.

llvm-svn: 170394

Add support for passing -main-file-name all the way through to
the assembler.

Part of PR14624

llvm-svn: 170390

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

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.

llvm-svn: 170371

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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

llvm-svn: 1

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

llvm-svn: 170041

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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

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>

llvm-svn: 169553

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Revert r169456, "change MCContext to work on the doInitialization/doFinalization model"

It broke many builders.

llvm-svn: 169462

change MCContext to work on the doInitialization/doFinalization model

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

llvm-svn: 169456

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

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. =]

llvm-svn: 169131

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Avoid symbol name clash when filling TOC.

Patch by Adhemerval Zanella.

llvm-svn: 164141

MCContext.cpp: Fixup for my odd previous commit. No functional changes.

llvm-svn: 159645

MCContext::GetDwarfFile(): Make FileName parsing tolerant of DOSish pathsep with PathV2.

It fixes failure in test/MC/MachO/gen-dwarf.s on Win32 w/o bash.

llvm-svn: 159640

Add simple support for keeping MCFixup source information.

Can be used to issue more user friendly diagnostics for faulty
relocation constructs and such.

llvm-svn: 149092

Add SourceMgr to MCContext for backend diagnostics.

llvm-svn: 149090

Fixed a bug in the code to create a dwarf file and directory table entires when
it is separating the directory part from the basename of the FileName. Noticed
that this:

.file 1 "dir/foo"

when

Fixed a bug in the code to create a dwarf file and directory table entires when
it is separating the directory part from the basename of the FileName. Noticed
that this:

.file 1 "dir/foo"

when assembled got the two parts switched. Using the Mac OS X dwarfdump tool
it can be seen easily:

% dwarfdump -a a.out
include_directories[ 1] = 'foo'
Dir Mod Time File Len File Name
---- ---------- ---------- ---------------------------
file_names[ 1] 1 0x00000000 0x00000000 dir
...

Which should be:
...
include_directories[ 1] = 'dir'
Dir Mod Time File Len File Name
---- ---------- ---------- ---------------------------
file_names[ 1] 1 0x00000000 0x00000000 foo

llvm-svn: 143521

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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

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

llvm-svn: 143509

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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 i

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.

llvm-svn: 142300

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