Commit Graph

277 Commits

Author SHA1 Message Date
Peter Collingbourne e5ddfa5ba1 Now that the linker supports lazily materialising globals, don't
materialise them in LTO.

I observed a ~0.5-1% speedup for an LTO link of opt.

llvm-svn: 143784
2011-11-05 04:17:25 +00:00
Bill Wendling 5f689e7b3a Reformatting changes to get rid of blank lines, put code on one line, and to
decrease some code indentation. No intended functional changes.

llvm-svn: 143723
2011-11-04 18:48:00 +00:00
Bill Wendling 019392bd4a Move comment to the correct place.
llvm-svn: 143690
2011-11-04 09:34:06 +00:00
Bill Wendling a2af67493c Make the Mangler an ivar so that it doesn't have to be passed around everywhere.
llvm-svn: 143689
2011-11-04 09:30:19 +00:00
Bill Wendling ac2abde903 Refactor the MCContext so that it's an ivar instead of a local which is passed
around. This is important for some future work as well.

llvm-svn: 143688
2011-11-04 09:24:40 +00:00
Sebastian Pop 94441fbad7 rename getHostTriple into getDefaultTargetTriple
llvm-svn: 143502
2011-11-01 21:32:20 +00:00
Daniel Dunbar 96d812a68d build: Tidy up a bunch of tool Makefiles, and simplify where possible using the
new all-targets pseudo-component.

llvm-svn: 142401
2011-10-18 19:27:24 +00:00
Ivan Krasin cc2a801f64 lto/addAsmGlobalSymbols: fast path when no module level asm is present.
llvm-svn: 139284
2011-09-08 07:38:25 +00:00
Ivan Krasin 8149dd6619 lto/addAsmGlobalSymbols: fail fracefully when the target does not define AsmParser.
llvm-svn: 139283
2011-09-08 07:36:39 +00:00
Benjamin Kramer 6397051ece 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.

llvm-svn: 138976
2011-09-01 23:04:27 +00:00
Evan Cheng 2bb4035707 Move TargetRegistry and TargetSelect from Target to Support where they belong.
These are strictly utilities for registering targets and components.

llvm-svn: 138450
2011-08-24 18:08:43 +00:00
John Criswell bae1c0b23b Fixed compilation warning on Linux by fixing the type of a return value.
llvm-svn: 137913
2011-08-18 01:19:05 +00:00
Jim Grosbach 345768c9ff Remove unused Target argument from AsmParser construction methods.
The argument is unused, and is a layering violation in any case.

llvm-svn: 137735
2011-08-16 18:33:49 +00:00
Rafael Espindola 3ea478b7ac Move methods in PassManagerBuilder offline.
llvm-svn: 136727
2011-08-02 21:50:27 +00:00
Rafael Espindola 591eaa481e move PassManagerBuilder.h to IPO. This is a non intuitive place to put it,
but it solves a layering violation since things in Support are not supposed to
use things in Transforms.

llvm-svn: 136726
2011-08-02 21:50:24 +00:00
Evan Cheng 1142444565 Rename TargetAsmParser to MCTargetAsmParser and TargetAsmLexer to MCTargetAsmLexer; rename createAsmLexer to createMCAsmLexer and createAsmParser to createMCAsmParser.
llvm-svn: 136027
2011-07-26 00:24:13 +00:00
Nick Lewycky 85a19aa333 Fix typo.
llvm-svn: 135971
2011-07-25 21:12:44 +00:00
Evan Cheng f2596bc62a Move TargetAsmParser.h TargetAsmBackend.h and TargetAsmLexer.h to MC where they belong.
llvm-svn: 135833
2011-07-23 00:45:41 +00:00
Evan Cheng 8c886a40d2 Combine all MC initialization routines into one. e.g. InitializeX86MCAsmInfo,
InitializeX86MCInstrInfo, etc. are combined into InitializeX86TargetMC.

llvm-svn: 135812
2011-07-22 21:58:54 +00:00
Evan Cheng bbf3b0de8b 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.

llvm-svn: 135611
2011-07-20 19:50:42 +00:00
Evan Cheng 76792992d6 Add MCObjectFileInfo and sink the MCSections initialization code from
TargetLoweringObjectFileImpl down to MCObjectFileInfo.

TargetAsmInfo is done to one last method. It's *almost* gone!

llvm-svn: 135569
2011-07-20 05:58:47 +00:00
Evan Cheng 2129f59637 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.

llvm-svn: 135468
2011-07-19 06:37:02 +00:00
Evan Cheng d60fa58ba1 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.

llvm-svn: 135424
2011-07-18 20:57:22 +00:00
Chris Lattner 229907cd11 land David Blaikie's patch to de-constify Type, with a few tweaks.
llvm-svn: 135375
2011-07-18 04:54:35 +00:00
Evan Cheng 1705ab00ab Rename createAsmInfo to createMCAsmInfo and move registration code to MCTargetDesc to prepare for next round of changes.
llvm-svn: 135219
2011-07-14 23:50:31 +00:00
Evan Cheng c7ac690ba2 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. :-(

llvm-svn: 135131
2011-07-14 05:43:07 +00:00
Cameron Zwarich 4d4b022478 Fix LTO after the recent MC subtarget refactoring.
llvm-svn: 134930
2011-07-11 22:19:51 +00:00
Evan Cheng 91111d2706 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.

llvm-svn: 134795
2011-07-09 05:47:46 +00:00
Evan Cheng 4d1ca96bfc Eliminate asm parser's dependency on TargetMachine:
- Each target asm parser now creates its own MCSubtatgetInfo (if needed).
- Changed AssemblerPredicate to take subtarget features which tablegen uses
  to generate asm matcher subtarget feature queries. e.g.
  "ModeThumb,FeatureThumb2" is translated to
  "(Bits & ModeThumb) != 0 && (Bits & FeatureThumb2) != 0".

llvm-svn: 134678
2011-07-08 01:53:10 +00:00
Evan Cheng fe6e405e8c 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 8264e272a9 Sink SubtargetFeature and TargetInstrItineraries (renamed MCInstrItineraries) into MC.
llvm-svn: 134049
2011-06-29 01:14:12 +00:00
Chad Rosier 772a91f8e4 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 2a31eb49c7 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 e967eefa00 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 7a8a5f7f1d Remove some unnecessary uses of c_str().
llvm-svn: 133516
2011-06-21 15:36:24 +00:00
Chris Lattner f200a0af58 switch bugpoint and liblto to PassManagerBuilder.
llvm-svn: 131821
2011-05-22 00:20:07 +00:00
Rafael Espindola fd05785324 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 6aea59268a Remove unused argument.
llvm-svn: 129955
2011-04-21 23:39:26 +00:00
Nick Lewycky 364c04ae01 Fix typo in comment.
llvm-svn: 129902
2011-04-21 01:54:08 +00:00
Chris Lattner 0ab5e2cded 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 22430f4141 Update CMakeLists.txt
Patch by arrowdoger.

llvm-svn: 128719
2011-04-01 18:03:58 +00:00
Devang Patel 4a2737aa26 Expoert c interface for disassembler.
llvm-svn: 128440
2011-03-29 00:01:39 +00:00
Rafael Espindola 26b57ffa27 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 2475adce37 We don't need a null terminator for the output file.
llvm-svn: 128098
2011-03-22 19:20:47 +00:00
Rafael Espindola 5b778b2e60 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 c78f65775a 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 f4d5346fb4 tools/lto/LTOModule.cpp: Eliminate an unused variable.
llvm-svn: 127859
2011-03-18 03:21:11 +00:00
Rafael Espindola ab959a2e68 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 b39c7c7b17 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 02c446a73a Build LTO as a static library too.
llvm-svn: 127553
2011-03-12 22:01:36 +00:00