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Commit Graph

248 Commits

Author SHA1 Message Date
Evan Cheng
034261674b 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!

llvm-svn: 134127
2011-06-30 01:53:36 +00:00
Evan Cheng
b4dc8bdd22 Sink SubtargetFeature and TargetInstrItineraries (renamed MCInstrItineraries) into MC.
llvm-svn: 134049
2011-06-29 01:14:12 +00:00
Chad Rosier
6a40804696 Reinstate r133516 "Remove some unnecessary uses of c_str()." A trailing null
character in std::string was causing failures for a few ObjC and Obj-C++ tests
when -flto was enabled.  Revision 133999 resolved this issue. Thanks Jay!
rdar://9685235
PR10210

llvm-svn: 134017
2011-06-28 18:26:12 +00:00
Jay Foad
fa97b8b8fa PR10210: New method ConstantArray::getAsCString(). Use it in LTO to
avoid getting embedded trailing null bytes in std::strings.

llvm-svn: 133999
2011-06-28 08:24:19 +00:00
Chad Rosier
c4a49e5afd Revert r133516 "Remove some unnecessary uses of c_str()."
This was causing compile-time failures for some of the Objc and Obj-C++
benchmarks.  The specific errors were of the form: "ld: duplicate symbol …"
rdar://9660124

llvm-svn: 133955
2011-06-27 22:54:29 +00:00
Jay Foad
ea4f714a73 Remove some unnecessary uses of c_str().
llvm-svn: 133516
2011-06-21 15:36:24 +00:00
Chris Lattner
89036e6501 switch bugpoint and liblto to PassManagerBuilder.
llvm-svn: 131821
2011-05-22 00:20:07 +00:00
Rafael Espindola
2f2c3bf31f Simplify the handling of pcrel relocations on ELF. Now we do the right thing
for all symbol differences and can drop the old EmitPCRelSymbolValue
method.

This also make getExprForFDESymbol on ELF equal to the one on MachO, and it
can be made non-virtual.

llvm-svn: 130634
2011-05-01 03:50:49 +00:00
Rafael Espindola
856ed14418 Remove unused argument.
llvm-svn: 129955
2011-04-21 23:39:26 +00:00
Nick Lewycky
08fa5e5ed3 Fix typo in comment.
llvm-svn: 129902
2011-04-21 01:54:08 +00:00
Chris Lattner
0304b82f80 Fix a ton of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!

llvm-svn: 129558
2011-04-15 05:18:47 +00:00
Devang Patel
0fda72d125 Update CMakeLists.txt
Patch by arrowdoger.

llvm-svn: 128719
2011-04-01 18:03:58 +00:00
Devang Patel
db381d9aff Expoert c interface for disassembler.
llvm-svn: 128440
2011-03-29 00:01:39 +00:00
Rafael Espindola
1592f3ae24 Add a lto_codegen_compile_to_file to avoid producing a file, reading it to
memory and writing it back to disk.

llvm-svn: 128108
2011-03-22 20:57:13 +00:00
Rafael Espindola
9e0fcfc02b We don't need a null terminator for the output file.
llvm-svn: 128098
2011-03-22 19:20:47 +00:00
Rafael Espindola
b0fe115914 Use lazy parsing in LTO. Unfortunately this is only a 3% time saving for
'ar'. Have to figure out how to make libLTO even lazier.

llvm-svn: 127901
2011-03-18 19:51:00 +00:00
Rafael Espindola
0e189f5304 Simplify the computation of undefined symbols. Instead of walking
functions and initializers, just report the declarations present in
the module.

The motivation is to open the way for using the lazy module parsing,
which should speed up clients that just want a symbol list (nm, ar).

This is slightly less precise, but since both -strip-dead-prototypes
and -globaldce are part of the standard pipeline, this shouldn't
change the result for clang/dragonegg produced binaries.

Any decl in an IL file was also put there because a FE expected it
to be necessary, so this should not be a problem for "-O0 -emit-llvm".

As a sanity check, I have bootstrapped clang on linux and built
firefox on both linux and darwin. A clang bootstrap on darwin
with LTO fails with or without this patch because, ironically,
the linker doesn't like the combination of dead_strip and LTO
when building libLTO.so :-)

llvm-svn: 127870
2011-03-18 05:12:38 +00:00
NAKAMURA Takumi
5327c64434 tools/lto/LTOModule.cpp: Eliminate an unused variable.
llvm-svn: 127859
2011-03-18 03:21:11 +00:00
Rafael Espindola
3ecf930d14 Use RequiresNullTerminator to create buffers without a null terminator
instead of copying.

llvm-svn: 127835
2011-03-17 22:18:42 +00:00
Rafael Espindola
8dab9a762b Add support in the LTO library for loading an object from the middle
of an file.

llvm-svn: 127781
2011-03-17 00:36:11 +00:00
Oscar Fuentes
a153a45c99 Build LTO as a static library too.
llvm-svn: 127553
2011-03-12 22:01:36 +00:00
Oscar Fuentes
eef24d34e6 Build LTO as a static library too.
llvm-svn: 127549
2011-03-12 17:32:30 +00:00
Oscar Fuentes
471e660c5a Update link components for llvm-dis and LTO.
llvm-svn: 127545
2011-03-12 16:48:49 +00:00
Oscar Fuentes
57a2625738 Add LTO and gold plugin to the CMake build. Linux-only, support for
other systems pending.

PR9456.

llvm-svn: 127466
2011-03-11 15:44:24 +00:00
Rafael Espindola
7f301833ee Add a special streamer to libLTO that just records symbols definitions and
uses.

The result produced by the streamer is used to give the linker more accurate
information and to add to llvm.compiler.used. The second improvement removes
the need for the user to add __attribute__((used)) to functions only used in
inline asm. The first one lets us build firefox with LTO on Darwin :-)

llvm-svn: 126830
2011-03-02 04:14:42 +00:00
Rafael Espindola
58423e8aad Switch LTO to use MC. This takes the linking of libxul.so from about 7m to
6m30.

llvm-svn: 126426
2011-02-24 21:04:06 +00:00
Rafael Espindola
5a77325398 Fix some memory leaks and avoid looking in the hash tables twice.
libxul links in 7m0.403s.

llvm-svn: 126085
2011-02-20 16:27:25 +00:00
Rafael Espindola
d3124f22fd Preserve aliases if needed.
llvm-svn: 125439
2011-02-12 18:03:13 +00:00
Rafael Espindola
1f29f4f844 Fix a silly bug I introduced when dropping std::string.
llvm-svn: 125420
2011-02-12 00:19:56 +00:00
Rafael Espindola
bb94ca00f7 Remove std::string version of getNameWithPrefix.
llvm-svn: 125363
2011-02-11 05:23:09 +00:00
Rafael Espindola
43f9672afa Don't open the file again in the gold plugin. To be able to do this, update
MemoryBuffer::getOpenFile to not close the file descriptor.

llvm-svn: 125128
2011-02-08 22:40:47 +00:00
Rafael Espindola
54673ba6ca Don't tell the linker about available_externally definitions. If we do, it will
complain about duplicated definitions.

llvm-svn: 124634
2011-02-01 00:41:51 +00:00
Devang Patel
1c9a5199b5 Do not include DataTypes.h in llvm-c/lto.h.
This means avoid using uint32_t. This patch reverts r112200 and fixes original  problem by fixing argument type in lto.cpp.

llvm-svn: 123038
2011-01-07 22:26:25 +00:00
Michael J. Spencer
86f6a9ac6e MemoryBuffer now return an error_code and returns a OwningPtr<MemoryBuffer> via an out parm.
llvm-svn: 121958
2010-12-16 03:29:14 +00:00
Rafael Espindola
0e665e502d Fixed version of 121434 with no new memory leaks.
llvm-svn: 121471
2010-12-10 07:39:47 +00:00
Rafael Espindola
011e168728 Revert my previous patch to make the valgrind bots happy.
llvm-svn: 121461
2010-12-10 04:01:09 +00:00
Rafael Espindola
03ad1e8f1f Initial support for the cfi directives. This is just enough to get
f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

llvm-svn: 121434
2010-12-09 23:48:29 +00:00
Michael J. Spencer
1b2e087ff3 More code not compiled by CMake. :(.
llvm-svn: 121387
2010-12-09 18:06:07 +00:00
Devang Patel
a4d6774cf8 Do not try luck by using given name to create temporary file. In parallel builds it may not work.
This time for .s file.

llvm-svn: 121016
2010-12-06 18:04:39 +00:00
Devang Patel
686e9faa6d Do not try luck by using given name to create temporary file. In parallel builds it may not work.
llvm-svn: 120860
2010-12-03 23:58:31 +00:00
Michael J. Spencer
4a63404543 I swear I did a make clean and make before committing all this...
llvm-svn: 120304
2010-11-29 18:47:54 +00:00
Rafael Espindola
749c19f614 Record sysbols created by aliases. Fixes PR8414.
llvm-svn: 116910
2010-10-20 04:57:22 +00:00
Daniel Dunbar
1f543c9364 lto: Respect LLVM_VERSION_INFO make variable, since setting CC arguments with
spaces gives tests fits and shell escaping is an art best left to jabberwockies.

llvm-svn: 116632
2010-10-15 22:46:15 +00:00
Dan Gohman
b41a554403 This file needs ToolOutputFile.h too.
llvm-svn: 115976
2010-10-07 20:48:46 +00:00
Bill Wendling
ef718b99d4 Provide a fast "get me the target triple from the module" API. This can
drastically reduce the linking time during LTO.

Patch by Shantonu Sen!

llvm-svn: 115728
2010-10-06 01:22:42 +00:00
Bill Wendling
3e1b942231 Add a new scope type "LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN" for the
"linker_private_weak_auto_def" linkage type for LTO.

llvm-svn: 114868
2010-09-27 20:17:45 +00:00
Bill Wendling
3dde665cb8 The "linker_private_weak*" linkages should set the LTO_SYMBOL_DEFINITION_WEAK
during LTO.

llvm-svn: 114850
2010-09-27 18:05:19 +00:00
Dan Gohman
f9e09104f1 Make tool_output_file's raw_ostream instance a member variable instead
of a base class.

This makes it possible to unregister the file from FilesToRemove when
the file is done. Also, this eliminates the need for
formatted_tool_output_file.

llvm-svn: 112706
2010-09-01 14:20:41 +00:00
Devang Patel
83384fcb5c Fix prototypes.
llvm-svn: 112200
2010-08-26 17:47:45 +00:00
Dan Gohman
6300d80566 lto_codegen_set_gcc_path was removed.
llvm-svn: 112069
2010-08-25 18:37:04 +00:00