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Commit Graph

280 Commits

Author SHA1 Message Date
David Blaikie
06ecc99a56 More dead code removal (using -Wunreachable-code)
llvm-svn: 148578
2012-01-20 21:51:11 +00:00
Rafael Espindola
2d545fa143 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.

llvm-svn: 147717
2012-01-07 03:13:18 +00:00
Nick Lewycky
7d0d3c2d58 Move global variables in TargetMachine into new TargetOptions class. As an API
change, now you need a TargetOptions object to create a TargetMachine. Clang
patch to follow.

One small functionality change in PTX. PTX had commented out the machine
verifier parts in their copy of printAndVerify. That now calls the version in
LLVMTargetMachine. Users of PTX who need verification disabled should rely on
not passing the command-line flag to enable it.

llvm-svn: 145714
2011-12-02 22:16:29 +00:00
Peter Collingbourne
42ebc937cb 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
83f7f41d72 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
510b538e32 Move comment to the correct place.
llvm-svn: 143690
2011-11-04 09:34:06 +00:00
Bill Wendling
c339c04e2e 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
2d3ef29584 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
f72a853709 rename getHostTriple into getDefaultTargetTriple
llvm-svn: 143502
2011-11-01 21:32:20 +00:00
Daniel Dunbar
81780d9982 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
2f2f63807f lto/addAsmGlobalSymbols: fast path when no module level asm is present.
llvm-svn: 139284
2011-09-08 07:38:25 +00:00
Ivan Krasin
6d62a9f1b3 lto/addAsmGlobalSymbols: fail fracefully when the target does not define AsmParser.
llvm-svn: 139283
2011-09-08 07:36:39 +00:00
Benjamin Kramer
bd939ad83e 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
420bf5446c 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
6df53156ad 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
a9a0c62719 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
2b0d064f3b Move methods in PassManagerBuilder offline.
llvm-svn: 136727
2011-08-02 21:50:27 +00:00
Rafael Espindola
73efcf56f6 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
2e96785311 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
a76f4792e3 Fix typo.
llvm-svn: 135971
2011-07-25 21:12:44 +00:00
Evan Cheng
13d54fc7c9 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
7b4cb12a95 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
c9bc5a9011 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
380dc98371 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
bfc0cac54d 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
561d71ce7b 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
e1fe7061ce 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
9e8f90a020 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
3d2be55d6c 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
583fdfe4ff Fix LTO after the recent MC subtarget refactoring.
llvm-svn: 134930
2011-07-11 22:19:51 +00:00
Evan Cheng
c9e252df68 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
50f2d8d304 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
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