oota-llvm.git
9 years ago[CodeGen] Introduce a FAULTING_LOAD_OP pseudo-op.
Sanjoy Das [Mon, 15 Jun 2015 18:44:08 +0000 (18:44 +0000)]
[CodeGen] Introduce a FAULTING_LOAD_OP pseudo-op.

Summary:
This instruction encodes a loading operation that may fault, and a label
to branch to if the load page-faults.  The locations of potentially
faulting loads and their "handler" destinations are recorded in a
FaultMap section, meant to be consumed by LLVM's clients.

Nothing generates FAULTING_LOAD_OP instructions yet, but they will be
used in a future change.

The documentation (FaultMaps.rst) needs improvement and I will update
this diff with a more expanded version shortly.

Depends on D10196

Reviewers: rnk, reames, AndyAyers, ab, atrick, pgavlin

Reviewed By: atrick, pgavlin

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10197

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239740 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[NFC] Extract X86MCInstLower::LowerMachineOperand.
Sanjoy Das [Mon, 15 Jun 2015 18:44:01 +0000 (18:44 +0000)]
[NFC] Extract X86MCInstLower::LowerMachineOperand.

Summary: Refactoring-only change that will be used later.

Reviewers: reames, atrick

Reviewed By: atrick

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10196

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239739 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDe-duplicate common expression, NFC.
Yaron Keren [Mon, 15 Jun 2015 17:03:35 +0000 (17:03 +0000)]
De-duplicate common expression, NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239736 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRangify several for loops, NFC.
Yaron Keren [Mon, 15 Jun 2015 16:20:16 +0000 (16:20 +0000)]
Rangify several for loops, NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239733 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoOn behalf of Alexandros Lamprineas:
Evgeny Astigeevich [Mon, 15 Jun 2015 15:48:44 +0000 (15:48 +0000)]
On behalf of Alexandros Lamprineas:

LLVM targeting aarch64 doesn't correctly produce aligned accesses for non-aligned
data at -O0/fast-isel (-mno-unaligned-access).
The root cause seems to be in fast-isel not producing unaligned access correctly
for -mno-unaligned-access.

The patch just aborts fast-isel for loads and stores when -mno-unaligned-access is
present.
The regression test is updated to check this new test case (-mno-unaligned-access
together with fast-isel).

Differential Revision: http://reviews.llvm.org/D10360

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239732 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[LinkerTest] Use LLVMDisposeMessage to free error string.
Benjamin Kramer [Mon, 15 Jun 2015 15:42:26 +0000 (15:42 +0000)]
[LinkerTest] Use LLVMDisposeMessage to free error string.

LLVMDisposeMessage is just a thing wrapper around free at the moment, but it's
the proper API to use here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239731 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAvoid a "always true" warning from gcc.
Rafael Espindola [Mon, 15 Jun 2015 14:49:41 +0000 (14:49 +0000)]
Avoid a "always true" warning from gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239729 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agogold-plugin: save the .o when given -save-temps.
Rafael Espindola [Mon, 15 Jun 2015 13:36:27 +0000 (13:36 +0000)]
gold-plugin: save the .o when given -save-temps.

The plugin now save the bitcode before and after optimizations and the
.o that is passed to the linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239726 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert r239721 - Replace string GNU Triples with llvm::Triple in InitMCObjectFileInfo...
Daniel Sanders [Mon, 15 Jun 2015 10:34:38 +0000 (10:34 +0000)]
Revert r239721 - Replace string GNU Triples with llvm::Triple in InitMCObjectFileInfo. NFC.

It appears to cause sparc-little-endian.s to assert on Windows and Darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239724 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoReplace string GNU Triples with llvm::Triple in InitMCObjectFileInfo. NFC.
Daniel Sanders [Mon, 15 Jun 2015 09:19:41 +0000 (09:19 +0000)]
Replace string GNU Triples with llvm::Triple in InitMCObjectFileInfo. NFC.

Summary:
This affects other tools so the previous C++ API has been retained as a
deprecated function for the moment. Clang has been updated with a trivial
patch (not covered by the pre-commit review) to avoid breaking -Werror builds.
Other in-tree tools will be fixed with similar trivial patches.

This continues the patch series to eliminate StringRef forms of GNU triples
from the internals of LLVM that began in r239036.

Reviewers: rengolin

Reviewed By: rengolin

Subscribers: llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D10366

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239721 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[MachineSink] Improve runtime performance. NFC.
Arnaud A. de Grandmaison [Mon, 15 Jun 2015 09:09:06 +0000 (09:09 +0000)]
[MachineSink] Improve runtime performance. NFC.

This patch fixes a compilation time issue, when MachineSink faces PHIs
with a huge number of operands. This can happen for example in goto table
based interpreters, where some basic blocks can have several of those PHIs,
each one with several hundreds operands. MachineSink was spending a
significant time re-building and re-sorting the list of successors of
the current MachineBasicBlock. The computing and sorting of the current
MachineBasicBlock successors is now cached.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239720 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ValueTracking] do not overwrite analysis results already computed
Jingyue Wu [Mon, 15 Jun 2015 05:46:29 +0000 (05:46 +0000)]
[ValueTracking] do not overwrite analysis results already computed

Summary:
ValueTracking used to overwrite the analysis results computed from
assumes and dominating conditions. This patch fixes this issue.

Test Plan: test/Analysis/ValueTracking/assume.ll

Reviewers: hfinkel, majnemer

Reviewed By: majnemer

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10283

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239718 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Support][Endian] Define |= and &= for u{big,little}{16,32,64}_t.
Rui Ueyama [Mon, 15 Jun 2015 03:00:15 +0000 (03:00 +0000)]
[Support][Endian] Define |= and &= for u{big,little}{16,32,64}_t.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239716 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[AArch64] Delete two empty files, which should be removed by r239713.
Hao Liu [Mon, 15 Jun 2015 02:56:40 +0000 (02:56 +0000)]
[AArch64] Delete two empty files, which should be removed by r239713.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239715 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[AArch64] Revert r239711 again. We need to discuss how to share code between AArch64...
Hao Liu [Mon, 15 Jun 2015 01:56:40 +0000 (01:56 +0000)]
[AArch64] Revert r239711 again. We need to discuss how to share code between AArch64 and ARM backend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239713 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[AArch64] Match interleaved memory accesses into ldN/stN instructions.
Hao Liu [Mon, 15 Jun 2015 01:35:49 +0000 (01:35 +0000)]
[AArch64] Match interleaved memory accesses into ldN/stN instructions.

Re-commit after adding "-aarch64-neon-syntax=generic" to fix the failure on OS X.
This patch was firstly committed in r239514, then reverted in r239544 because of a syntax incompatible failure on OS X.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239711 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] Try to fix r239612, not to miss resources/windows_version_resource.rc in...
NAKAMURA Takumi [Sun, 14 Jun 2015 21:47:29 +0000 (21:47 +0000)]
[CMake] Try to fix r239612, not to miss resources/windows_version_resource.rc in clang build.

  - Who defines ${LLVM_SOURCE_DIR} ?
  - Would windows_version_resource.rc be available in an *installed* llvm tree?
    I suggest it may be installed in ${PREFIX}/share.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239703 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[InstSimplify] fsub nnan x, x -> 0.0 is valid without ninf
Benjamin Kramer [Sun, 14 Jun 2015 21:01:20 +0000 (21:01 +0000)]
[InstSimplify] fsub nnan x, x -> 0.0 is valid without ninf

Both inf - inf and (-inf) - (-inf) are NaN, so it's already covered by
nnan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239702 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[InstSimplify] Add self-fdiv identities for -ffinite-math-only.
Benjamin Kramer [Sun, 14 Jun 2015 18:53:58 +0000 (18:53 +0000)]
[InstSimplify] Add self-fdiv identities for -ffinite-math-only.

When NaNs and Infs are ignored we can fold
 X /  X -> 1.0
-X /  X -> -1.0
 X / -X -> -1.0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239701 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAVX-512: Implemented DAG lowering for shuff62x2/shufi62x2 instuctions ( Shuffle Packe...
Igor Breger [Sun, 14 Jun 2015 13:07:47 +0000 (13:07 +0000)]
AVX-512: Implemented DAG lowering for shuff62x2/shufi62x2 instuctions ( Shuffle Packed Values at 128-bit Granularity )
Tests added , vector-shuffle-512-v8.ll test re-generated.

Differential Revision: http://reviews.llvm.org/D10300

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239697 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd support for parsing the XOR operator in Intel syntax inline assembly.
Michael Kuperstein [Sun, 14 Jun 2015 12:59:45 +0000 (12:59 +0000)]
Add support for parsing the XOR operator in Intel syntax inline assembly.

Differential Revision: http://reviews.llvm.org/D10385
Patch by marina.yatsina@intel.com

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239695 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAVX-512: Implemented cvtsi2ss/d cvtusi2ss/d instructions with round control for KNL.
Igor Breger [Sun, 14 Jun 2015 12:44:55 +0000 (12:44 +0000)]
AVX-512: Implemented cvtsi2ss/d cvtusi2ss/d instructions with round control for KNL.
Added intrinsics for cvtsi2ss/d instructions.
Added tests for intrinsics and encoding.

Differential Revision: http://reviews.llvm.org/D10430

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239694 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAsmPrinter.cpp: Avoid crashes for targeting like "arm-mingw32". CurrentFnSym might...
NAKAMURA Takumi [Sun, 14 Jun 2015 00:23:40 +0000 (00:23 +0000)]
AsmPrinter.cpp: Avoid crashes for targeting like "arm-mingw32". CurrentFnSym might not be <MCSymbolELF> here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239692 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoReformat.
NAKAMURA Takumi [Sun, 14 Jun 2015 00:23:33 +0000 (00:23 +0000)]
Reformat.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239691 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Hexagon] Adding some codegen tests and updating some to match spec.
Colin LeMahieu [Sat, 13 Jun 2015 21:46:39 +0000 (21:46 +0000)]
[Hexagon] Adding some codegen tests and updating some to match spec.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239690 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Statepoints] Skip a vector copy when uniquing values.
Benjamin Kramer [Sat, 13 Jun 2015 19:50:38 +0000 (19:50 +0000)]
[Statepoints] Skip a vector copy when uniquing values.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239688 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ExecutionEngine] ArrayRefize argument passing.
Benjamin Kramer [Sat, 13 Jun 2015 19:50:29 +0000 (19:50 +0000)]
[ExecutionEngine] ArrayRefize argument passing.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239687 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoC++11 Rangify loops in AssemblyWriter::printModule, NFC.
Yaron Keren [Sat, 13 Jun 2015 17:50:47 +0000 (17:50 +0000)]
C++11 Rangify loops in AssemblyWriter::printModule, NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239686 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDon't use std::errc.
Rafael Espindola [Sat, 13 Jun 2015 17:23:04 +0000 (17:23 +0000)]
Don't use std::errc.

As noted on Errc.h:

// * std::errc is just marked with is_error_condition_enum. This means that
//   common patters like AnErrorCode == errc::no_such_file_or_directory take
//   4 virtual calls instead of two comparisons.

And on some libstdc++ those virtual functions conclude that

------------------------
int main() {
  std::error_code foo = std::make_error_code(std::errc::no_such_file_or_directory);
  return foo == std::errc::no_such_file_or_directory;
}
-------------------------

should exit with 0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239683 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[DAGCombiner] Added BSWAP(BSWAP(x)) -> x combine pattern.
Simon Pilgrim [Sat, 13 Jun 2015 16:25:12 +0000 (16:25 +0000)]
[DAGCombiner] Added BSWAP(BSWAP(x)) -> x combine pattern.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239682 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agohoist loop-invariant; NFCI
Sanjay Patel [Sat, 13 Jun 2015 15:33:15 +0000 (15:33 +0000)]
hoist loop-invariant; NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239681 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoremove function names from comments and clean up; NFC
Sanjay Patel [Sat, 13 Jun 2015 15:32:45 +0000 (15:32 +0000)]
remove function names from comments and clean up; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239680 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[SelectionDAG] Added assertions + UNDEF handling for BSWAP node creation.
Simon Pilgrim [Sat, 13 Jun 2015 15:23:58 +0000 (15:23 +0000)]
[SelectionDAG] Added assertions + UNDEF handling for BSWAP node creation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239679 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoremove unnecessary casts; NFCI
Sanjay Patel [Sat, 13 Jun 2015 15:06:33 +0000 (15:06 +0000)]
remove unnecessary casts; NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239678 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[DAGCombiner] Added BSWAP vector constant folding support.
Simon Pilgrim [Sat, 13 Jun 2015 14:08:15 +0000 (14:08 +0000)]
[DAGCombiner] Added BSWAP vector constant folding support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239675 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoStripped trailing whitespace. NFC.
Simon Pilgrim [Sat, 13 Jun 2015 12:57:36 +0000 (12:57 +0000)]
Stripped trailing whitespace. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239674 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[LinkerTest] Don't leak error string.
Benjamin Kramer [Sat, 13 Jun 2015 12:53:21 +0000 (12:53 +0000)]
[LinkerTest] Don't leak error string.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239673 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoStripped trailing whitespace. NFC.
Simon Pilgrim [Sat, 13 Jun 2015 12:51:39 +0000 (12:51 +0000)]
Stripped trailing whitespace. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239672 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoBring in a BumpPtrStringSaver from lld and simplify the interface.
Rafael Espindola [Sat, 13 Jun 2015 12:49:52 +0000 (12:49 +0000)]
Bring in a BumpPtrStringSaver from lld and simplify the interface.

StringSaver now always saves to a BumpPtrAllocator.

The only reason for having the virtual saveImpl is so lld can have a
thread safe version.

The reason for the distinct BumpPtrStringSaver class is to avoid the
virtual destructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239669 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[LIT] Fix failing LIT tests
Eric Fiselier [Sat, 13 Jun 2015 06:55:44 +0000 (06:55 +0000)]
[LIT] Fix failing LIT tests

Summary:
I spend some time trying to get the LIT test suite passing. Here are the changes that I needed to make on my machine.

I made the following changes for the following reasons.

1. google-test.py: The Google test format now checks for "[  PASSED  ] 1 test." to check if a test passes.
2. discovery.py: The output appears in a different order on my machine than it did in the test.
3. unittest-adaptor.py: The output appears in a different order on my machine than it did in the test.
4. The classname is now formed differently in `getJUnitXML(...)`.

I'm not sure what is causing the output order to differ in discovery.py and unittest-adaptor.py. Does anybody have any thoughts?

Reviewers: ddunbar, danalbert, jroelofs

Reviewed By: jroelofs

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9864

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239663 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAMDGPU: s/R600/AMDGPU/ in the Makefiles
Tom Stellard [Sat, 13 Jun 2015 05:11:14 +0000 (05:11 +0000)]
AMDGPU: s/R600/AMDGPU/ in the Makefiles

Now the library names in the Makefiles match the library names in
LLVMBuild.txt.

This should hopefully fix the remaining bot failures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239661 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoconfigure: Remove non-portable fall-through operator: ;&
Tom Stellard [Sat, 13 Jun 2015 03:46:48 +0000 (03:46 +0000)]
configure: Remove non-portable fall-through operator: ;&

This was added in r239657.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239660 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRename TargetSubtargetInfo::enablePostMachineScheduler() to enablePostRAScheduler()
Matthias Braun [Sat, 13 Jun 2015 03:42:16 +0000 (03:42 +0000)]
Rename TargetSubtargetInfo::enablePostMachineScheduler() to enablePostRAScheduler()

r213101 changed the behaviour of this method to not only affect the
PostMachineScheduler scheduler but also the PostRAScheduler scheduler,
renaming should make this fact clear. Also document that the preferred
way is to specify this in the scheduling model instead of overriding
this method.

Differential Revision: http://reviews.llvm.org/D10427

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239659 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMachineLICM: Use TargetSchedModel instead of just itineraries
Matthias Braun [Sat, 13 Jun 2015 03:42:11 +0000 (03:42 +0000)]
MachineLICM: Use TargetSchedModel instead of just itineraries

This will use Itinieraries if available, but will also work if just a
MCSchedModel is available.

Differential Revision: http://reviews.llvm.org/D10428

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239658 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600 -> AMDGPU rename
Tom Stellard [Sat, 13 Jun 2015 03:28:10 +0000 (03:28 +0000)]
R600 -> AMDGPU rename

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239657 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert 239644.
Matt Wala [Sat, 13 Jun 2015 01:08:00 +0000 (01:08 +0000)]
Revert 239644.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239650 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAArch64: map bare-metal arm64-macho triple to MachO MC layer.
Tim Northover [Fri, 12 Jun 2015 23:37:11 +0000 (23:37 +0000)]
AArch64: map bare-metal arm64-macho triple to MachO MC layer.

Far better than an assertion about expecting ELF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239647 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix returning error message in LLVMLinkModules
Eli Bendersky [Fri, 12 Jun 2015 23:26:42 +0000 (23:26 +0000)]
Fix returning error message in LLVMLinkModules

On error, the temporary output stream wouldn't be flushed and therefore the
caller would see an empty error message.

Patch by Antoine Pitrou

Differential Revision: http://reviews.llvm.org/D10241

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239646 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Orc] Tidy up initialization based on review feedback for r239561 from dblaikie.
Lang Hames [Fri, 12 Jun 2015 23:13:06 +0000 (23:13 +0000)]
[Orc] Tidy up initialization based on review feedback for r239561 from dblaikie.

NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239645 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Scalarizer] Fix potential for stale data in Scattered across invocations
Matt Wala [Fri, 12 Jun 2015 22:49:11 +0000 (22:49 +0000)]
[Scalarizer] Fix potential for stale data in Scattered across invocations

Summary:
Scalarizer has two data structures that hold information about changes
to the function, Gathered and Scattered. These are cleared in finish()
at the end of runOnFunction() if finish() detects any changes to the
function.

However, finish() was checking for changes by only checking if
Gathered was non-empty. The function visitStore() only modifies
Scattered without touching Gathered. As a result, Scattered could have
ended up having stale data if Scalarizer only scalarized store
instructions. Since the data in Scattered is used during the execution
of the pass, this introduced dangling pointer errors.

The fix is to check whether both Scattered and Gathered are empty
before deciding what to do in finish().

Reviewers: srhines

Reviewed By: srhines

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10422

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239644 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Orc] Tidy up the CompileOnDemand layer based on commit review from dblaikie.
Lang Hames [Fri, 12 Jun 2015 22:22:50 +0000 (22:22 +0000)]
[Orc] Tidy up the CompileOnDemand layer based on commit review from dblaikie.

NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239642 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Orc] Fix a bug in the CompileOnDemand layer where stub decls were not cloned
Lang Hames [Fri, 12 Jun 2015 21:31:15 +0000 (21:31 +0000)]
[Orc] Fix a bug in the CompileOnDemand layer where stub decls were not cloned
into partitions. Also, add an option to clone stub definitions (not just decls)
into partitions: these definitions could be inlined in some places to avoid the
overhead of calling via the stub.

Found by inspection - no test case yet, although I plan to add a unit test for
this once the CompileOnDemand layer refactoring settles down.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239640 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoR600/SI: Add assembler support for FLAT instructions
Tom Stellard [Fri, 12 Jun 2015 20:47:06 +0000 (20:47 +0000)]
R600/SI: Add assembler support for FLAT instructions

- Add glc, slc, and tfe operands to flat instructions
- Add missing flat instructions
- Fix the encoding of flat_load_dwordx3 and flat_store_dwordx3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239637 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRangify several for loops in ValueEnumerator constructor.
Yaron Keren [Fri, 12 Jun 2015 20:18:20 +0000 (20:18 +0000)]
Rangify several for loops in ValueEnumerator constructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239636 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Hexagon] Making intrinsic tests agnostic to register allocation. Narrowing intrinsi...
Colin LeMahieu [Fri, 12 Jun 2015 19:57:32 +0000 (19:57 +0000)]
[Hexagon] Making intrinsic tests agnostic to register allocation.  Narrowing intrinsic parameters to appropriate width.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239634 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoWrap some long lines in LLVMBuild files. NFC
Douglas Katzman [Fri, 12 Jun 2015 18:44:57 +0000 (18:44 +0000)]
Wrap some long lines in LLVMBuild files. NFC

As suggested by jroelofs in a prior review (D9752),
it makes sense to generally prefer multi-line format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239632 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd 'shave' processor name to Triple
Douglas Katzman [Fri, 12 Jun 2015 18:31:38 +0000 (18:31 +0000)]
Add 'shave' processor name to Triple

Based on ArchType, Clang's driver can select a non-Clang compiler.
String parsing in Clang would have sufficed if it were only that,
however this change anticipates true llvm support.

Differential Revision: http://reviews.llvm.org/D10413

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239631 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRefix a use of explicit pointer types in GEP constant folding
David Blaikie [Fri, 12 Jun 2015 18:22:03 +0000 (18:22 +0000)]
Refix a use of explicit pointer types in GEP constant folding

In the glorious future of opaque pointer types, it won't be possible to
retrieve the pointee type of a pointer type which is what's being done
in this GEP loop - but the first iteration is always a pointer type and
the loop doesn't care about that case, except whether or not the index
is a constant.

So pull that special case out before the loop and start at the second
iteration (index 1) instead.

Originally committed in r236670 and reverted with a test case in
r239015. This change keeps the test case working while also avoiding
depending on pointee types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239629 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix a typo in a comment in MemCpyOpt (test commit)
Matt Wala [Fri, 12 Jun 2015 18:16:51 +0000 (18:16 +0000)]
Fix a typo in a comment in MemCpyOpt (test commit)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239628 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRangify two for loops in BitcodeReader.cpp.
Yaron Keren [Fri, 12 Jun 2015 18:13:20 +0000 (18:13 +0000)]
Rangify two for loops in BitcodeReader.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239627 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove unnecessary MCExpr.h include from MCSymbol.h
Pete Cooper [Fri, 12 Jun 2015 18:07:34 +0000 (18:07 +0000)]
Remove unnecessary MCExpr.h include from MCSymbol.h

MCSymbol.h already forwards declares MCExpr and only uses MCExpr* so doesn't
need to include the header.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239626 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove a bunch of inline keywords from User. NFC.
Pete Cooper [Fri, 12 Jun 2015 17:48:21 +0000 (17:48 +0000)]
Remove a bunch of inline keywords from User.  NFC.

This came up in the patch review for http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20150608/281362.html.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239624 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMove OperandList to be allocated prior to User for hung off subclasses.
Pete Cooper [Fri, 12 Jun 2015 17:48:18 +0000 (17:48 +0000)]
Move OperandList to be allocated prior to User for hung off subclasses.

For hung off uses, we need a Use* to tell use where the operands are.
This was User::OperandList but we want to remove that to save space
of all subclasses which aren't making use of 'hung off uses'.

Hung off uses now allocate their own 'OperandList' Use* in the
User::new which they call.

getOperandList() now uses the hung off uses bit to work out where the
Use* for the OperandList lives.  If a User has hung off uses, then this
bit tells them to go back a single Use* from the User* and use that
value as the OperandList.

If a User has no hung off uses, then we get the first operand by
subtracting (NumOperands * sizeof(Use)) from the User this pointer.

This saves a pointer from User and all subclasses.  Given the average
size of a subclass of User is 112 or 128 bytes, this saves around 7% of space
With malloc tending to align to 16-bytes the real saving is typically more like 3.5%.

On 'opt -O2 verify-uselistorder.lto.bc', peak memory usage prior to this change
is 149MB and after is 143MB so the savings are around 2.5% of peak.

Looking at some passes which allocate many Instructions and Values, parseIR drops
from 54.25MB to 52.21MB while the Inliner calls to Instruction::clone() drops
from 28.20MB to 27.05MB.

Reviewed by Duncan Exon Smith.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239623 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdded a version of User::new for hung off uses.
Pete Cooper [Fri, 12 Jun 2015 17:48:14 +0000 (17:48 +0000)]
Added a version of User::new for hung off uses.

There are now 2 versions of User::new.  The first takes a size_t and is the current
implementation for subclasses which need 0 or more Use's allocated for their operands.

The new version takes no extra arguments to say that this subclass needs 'hung off uses'.
The HungOffUses bool is now set in this version of User::new and we can assert in
allocHungOffUses that we are allowed to have hung off uses.
This ensures we call the correct version of User::new for subclasses which need hung off uses.

A future commit will then allocate space for a single Use* which will be used
in place of User::OperandList once that field has been removed.

Reviewed by Duncan Exon Smith.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239622 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRename NumOperands to make it clear its managed by the User. NFC.
Pete Cooper [Fri, 12 Jun 2015 17:48:10 +0000 (17:48 +0000)]
Rename NumOperands to make it clear its managed by the User. NFC.

This is to try make it very clear that subclasses shouldn't be changing
the value directly.  Now that OperandList for normal instructions is computed
using the NumOperands, its critical that the NumOperands is accurate or we
could compute the wrong offset to the first operand.

I looked over all places which update NumOperands and they are all safe.
Hung off use User's don't use NumOperands to compute the OperandList so they
are safe to continue to manipulate it.  The only other User which changed it
was GlobalVariable which has an optional init list but always allocated space
for a single Use.  It was correctly setting NumOperands to 1 before setting an
initializer, and setting it to 0 after clearing the init list, so the order was safe.

Added some comments to that code to make sure that this isn't changed in future
without being aware of this constraint.

Reviewed by Duncan Exon Smith.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239621 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoReplace all accesses to User::OperandList with getter and setter methods. NFC.
Pete Cooper [Fri, 12 Jun 2015 17:48:05 +0000 (17:48 +0000)]
Replace all accesses to User::OperandList with getter and setter methods. NFC.

We don't want anyone to access OperandList directly as its going to be removed
and computed instead.  This uses getter's and setter's instead in which we
can later change the underlying implementation of OperandList.

Reviewed by Duncan Exon Smith.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239620 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoHave the ELF symbol predicates match more directly the spec.
Rafael Espindola [Fri, 12 Jun 2015 17:23:39 +0000 (17:23 +0000)]
Have the ELF symbol predicates match more directly the spec.

The underlaying issues is that this code can't really know if an OS specific or
processor specific section number should return true or false.

One option would be to assert or return an error, but that looks like over
engineering since extensions are not that common.

It seems better to have these be direct implementation of the ELF spec so that
they are natural for someone familiar with ELF reading the code.

Code that does have to handle OS/Architecture specific values can do it at
a higher level.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239618 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDon't create instructions from ConstantExpr's in CFLAliasAnalysis.
Pete Cooper [Fri, 12 Jun 2015 16:13:54 +0000 (16:13 +0000)]
Don't create instructions from ConstantExpr's in CFLAliasAnalysis.

The CFLAA code currently calls ConstantExpr::getAsInstruction which creates an instruction from a constant expr.

We then pass that instruction to the InstVisitor to analyze it.

Its not necessary to create these instructions as we can just cast from Constant to Operator in the visitor.  This is how other InstVisitor’s such as SelectionDAGBuilder handle ConstantExpr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239616 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoIn MSVC builds embed a VERSIONINFO resource in our exe and DLL files.
Greg Bedwell [Fri, 12 Jun 2015 15:58:29 +0000 (15:58 +0000)]
In MSVC builds embed a VERSIONINFO resource in our exe and DLL files.

This reinstates my commits r238740/r238741 which I reverted due to a failure
in the clang-cl selfhost tests on Windows.  I've now fixed the issue in
clang-cl that caused the failure so hopefully all should be well now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239612 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove a hack that tries to align '*'.
Rafael Espindola [Fri, 12 Jun 2015 12:42:13 +0000 (12:42 +0000)]
Remove a hack that tries to align '*'.

The alignment is not required, so we can just remove it for now.

The old code is a hack as it depends on the buffer management to find
the current column.

If the alignment is really desirable, the proper way to do it is
to pass in a formatted_raw_stream that knows the current column.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239603 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDon't depend on the interleaving of stdout and stderr.
Rafael Espindola [Fri, 12 Jun 2015 12:20:03 +0000 (12:20 +0000)]
Don't depend on the interleaving of stdout and stderr.

That can change as we change the buffering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239602 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ASan] format AddressSanitizer.cpp with `clang-format -style=Google`, NFC
Alexander Potapenko [Fri, 12 Jun 2015 11:27:06 +0000 (11:27 +0000)]
[ASan] format AddressSanitizer.cpp with `clang-format -style=Google`, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239601 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ARM] Disabling vfp4 should disable fp16
John Brawn [Fri, 12 Jun 2015 09:38:51 +0000 (09:38 +0000)]
[ARM] Disabling vfp4 should disable fp16

ARMTargetParser::getFPUFeatures should disable fp16 whenever it
disables vfp4, as otherwise something like -mcpu=cortex-a7 -mfpu=none
leaves us with fp16 enabled (though the only effect that will have is
a wrong build attribute).

Differential Revision: http://reviews.llvm.org/D10397

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239599 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoReplace duplicated iplist<T> types with the corresponding typedefs.
Yaron Keren [Fri, 12 Jun 2015 08:19:32 +0000 (08:19 +0000)]
Replace duplicated iplist<T> types with the corresponding typedefs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239598 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRangify for loops, NFC.
Yaron Keren [Fri, 12 Jun 2015 05:15:27 +0000 (05:15 +0000)]
Rangify for loops, NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239596 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoLowerBitSets: Give names to aliases of unnamed bitset element objects.
Peter Collingbourne [Fri, 12 Jun 2015 03:25:05 +0000 (03:25 +0000)]
LowerBitSets: Give names to aliases of unnamed bitset element objects.

It is valid for globals to be unnamed, but aliases must have a name. To avoid
creating invalid IR, we need to assign names to any aliases we create that
point to unnamed objects that have been moved into combined globals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239590 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert commit r239480 as it causes https://code.google.com/p/chromium/issues/detail...
Teresa Johnson [Fri, 12 Jun 2015 03:12:00 +0000 (03:12 +0000)]
Revert commit r239480 as it causes https://code.google.com/p/chromium/issues/detail?id=499508#c3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239589 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd missing #include, found by modules build.
Richard Smith [Fri, 12 Jun 2015 02:13:45 +0000 (02:13 +0000)]
Add missing #include, found by modules build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239587 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[SanitizerCoverage] Use llvm::getDISubprogram() to get location of the entry basic...
Alexey Samsonov [Fri, 12 Jun 2015 01:48:47 +0000 (01:48 +0000)]
[SanitizerCoverage] Use llvm::getDISubprogram() to get location of the entry basic block.

DebugLoc::getFnDebugLoc() should soon be removed. Also,
getDISubprogram() might become more effective soon and wouldn't need to
scan debug locations at all, if function-level metadata would be emitted
by Clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239586 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[GVN] Use a simpler form of IRBuilder constructor.
Alexey Samsonov [Fri, 12 Jun 2015 01:39:48 +0000 (01:39 +0000)]
[GVN] Use a simpler form of IRBuilder constructor.

Summary:
A side effect of this change is that it IRBuilder now automatically
created debug info locations for new instructions, which is the
same as debug location of insertion point. This is fine for the
functions in questions (GetStoreValueForLoad and
GetMemInstValueForLoad), as they are used in two situations:
  * GVN::processLoad, which tries to eliminate a load. In this case
    new instructions would have the same debug location as the load they
    eventually replace;
  * MaterializeAdjustedValue, which adds new instructions to the end
    of the basic blocks, which could later be used to replace the load
    definition. In this case we don't yet know the way the load would
    be eventually replaced (either by assembling the precomputed values
    via PHI, or by using them directly), so just using the basic block
    strategy seems to be reasonable. There is also a special case
    in the code that *would* adjust the location of the last
    instruction replacing the load definition to the location of the
    load.

Test Plan: regression test suite

Reviewers: echristo, dberlin, dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10405

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239585 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[GVN] Use IRBuilder more actively instead of creating instructions manually.
Alexey Samsonov [Fri, 12 Jun 2015 01:39:45 +0000 (01:39 +0000)]
[GVN] Use IRBuilder more actively instead of creating instructions manually.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239584 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[WinEH] Put finally pointers in the handler scope table field
Reid Kleckner [Thu, 11 Jun 2015 23:37:18 +0000 (23:37 +0000)]
[WinEH] Put finally pointers in the handler scope table field

We were putting them in the filter field, which is correct for 64-bit
but wrong for 32-bit.

Also switch the order of scope table entry emission so outermost entries
are emitted first, and fix an obvious state assignment bug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239574 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMC: Prune \return corresponding to r239552. [-Wdocumentation]
NAKAMURA Takumi [Thu, 11 Jun 2015 23:04:56 +0000 (23:04 +0000)]
MC: Prune \return corresponding to r239552. [-Wdocumentation]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239571 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Orc] Attempted fix for GCC ICE on Polly builder.
Lang Hames [Thu, 11 Jun 2015 22:51:01 +0000 (22:51 +0000)]
[Orc] Attempted fix for GCC ICE on Polly builder.

Along the same lines as the fix in r228568.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239570 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Stackmaps][X86] Remove EFLAGS and IP registers from the live-out mask.
Juergen Ributzka [Thu, 11 Jun 2015 22:40:04 +0000 (22:40 +0000)]
[Stackmaps][X86] Remove EFLAGS and IP registers from the live-out mask.

Remove the EFLAGS from the stackmap live-out mask. The EFLAGS register is not
supposed to be part of that set, because the X86 calling conventions mark the
register as NOT preserved.

Also remove the IP registers, since spilling and restoring those doesn't really
make any sense.

Related to rdar://problem/21019635.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239568 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[WinEH] Create an llvm.x86.seh.exceptioninfo intrinsic
Reid Kleckner [Thu, 11 Jun 2015 22:32:23 +0000 (22:32 +0000)]
[WinEH] Create an llvm.x86.seh.exceptioninfo intrinsic

This intrinsic is like framerecover plus a load. It recovers the EH
registration stack allocation from the parent frame and loads the
exception information field out of it, giving back a pointer to an
EXCEPTION_POINTERS struct. It's designed for clang to use in SEH filter
expressions instead of accessing the EXCEPTION_POINTERS parameter that
is available on x64.

This required a minor change to MC to allow defining a label variable to
another absolute framerecover label variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239567 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Support] Fix a race initializing a static local in MSVC
Reid Kleckner [Thu, 11 Jun 2015 22:22:45 +0000 (22:22 +0000)]
[Support] Fix a race initializing a static local in MSVC

static local initialization isn't thread safe with MSVC and a race was
reported in PR23817. We can't use std::atomic because it's not trivially
constructible, so instead do some lame volatile global integer
manipulation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239566 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUpdate stale comment before analyzeLoopUnrollCost. NFC.
Michael Zolotukhin [Thu, 11 Jun 2015 22:17:39 +0000 (22:17 +0000)]
Update stale comment before analyzeLoopUnrollCost. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239565 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Orc] Remove some unnecesary includes and whitespace that slipped in to r239561.
Lang Hames [Thu, 11 Jun 2015 22:12:24 +0000 (22:12 +0000)]
[Orc] Remove some unnecesary includes and whitespace that slipped in to r239561.

NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239564 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Orc] Make partition identification in the CompileOnDemand layer lazy.
Lang Hames [Thu, 11 Jun 2015 21:45:19 +0000 (21:45 +0000)]
[Orc] Make partition identification in the CompileOnDemand layer lazy.

This also breaks out the logical dylib symbol resolution logic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239561 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoObject: Prepend __imp_ when mangling a dllimport symbol in IRObjectFile.
Peter Collingbourne [Thu, 11 Jun 2015 21:42:18 +0000 (21:42 +0000)]
Object: Prepend __imp_ when mangling a dllimport symbol in IRObjectFile.

We cannot prepend __imp_ in the IR mangler because a function reference may
be emitted unmangled in a constant initializer. The linker is expected to
resolve such references to thunks. This is covered by the new test case.

Strictly speaking we ought to emit two undefined symbols, one with __imp_ and
one without, as we cannot know which symbol the final object file will refer
to. However, this would require rather intrusive changes to IRObjectFile,
and lld works fine without it for now.

This reimplements r239437, which was reverted in r239502.

Differential Revision: http://reviews.llvm.org/D10400

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239560 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoLTO: expose LTO_SYMBOL_COMDAT flag, which indicates that the definition is part of...
Peter Collingbourne [Thu, 11 Jun 2015 21:41:27 +0000 (21:41 +0000)]
LTO: expose LTO_SYMBOL_COMDAT flag, which indicates that the definition is part of a comdat group.

Reviewers: rafael

Subscribers: llvm-commits, ruiu

Differential Revision: http://reviews.llvm.org/D10330

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239559 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix English usage in command line flag help string.
Douglas Katzman [Thu, 11 Jun 2015 20:03:23 +0000 (20:03 +0000)]
Fix English usage in command line flag help string.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239556 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ELF] Introduce getValue() for ELF Symbols.
Davide Italiano [Thu, 11 Jun 2015 19:59:04 +0000 (19:59 +0000)]
[ELF] Introduce getValue() for ELF Symbols.

Differential Revision: http://reviews.llvm.org/D10328
Reviewed by: rafael

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239555 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoReplace string GNU Triples with llvm::Triple in TargetMachine. NFC.
Daniel Sanders [Thu, 11 Jun 2015 19:41:26 +0000 (19:41 +0000)]
Replace string GNU Triples with llvm::Triple in TargetMachine. NFC.

Summary:
For the moment, TargetMachine::getTargetTriple() still returns a StringRef.

This continues the patch series to eliminate StringRef forms of GNU triples
from the internals of LLVM that began in r239036.

Reviewers: rengolin

Reviewed By: rengolin

Subscribers: ted, llvm-commits, rengolin, jholewinski

Differential Revision: http://reviews.llvm.org/D10362

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239554 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CodeGen] ArrayRef'ize cond/pred in various TII APIs. NFC.
Ahmed Bougacha [Thu, 11 Jun 2015 19:30:37 +0000 (19:30 +0000)]
[CodeGen] ArrayRef'ize cond/pred in various TII APIs. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239553 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoGeneralize emitAbsoluteSymbolDiff.
Rafael Espindola [Thu, 11 Jun 2015 18:58:08 +0000 (18:58 +0000)]
Generalize emitAbsoluteSymbolDiff.

This makes emitAbsoluteSymbolDiff always succeed and moves logic from the asm
printer to it.

The object one now also works on ELF. If two symbols are in the same fragment,
we will never move them apart.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239552 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSet proper debug location for branch added in BasicBlock::splitBasicBlock().
Alexey Samsonov [Thu, 11 Jun 2015 18:25:54 +0000 (18:25 +0000)]
Set proper debug location for branch added in BasicBlock::splitBasicBlock().

This improves debug locations in passes that do a lot of basic block
transformations. Important case is LoopUnroll pass, the test for correct
debug locations accompanies this change.

Test Plan: regression test suite

Reviewers: dblaikie, sanjoy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10367

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239551 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[LoopUnroll] Use IRBuilder to create branch instructions.
Alexey Samsonov [Thu, 11 Jun 2015 18:25:44 +0000 (18:25 +0000)]
[LoopUnroll] Use IRBuilder to create branch instructions.

Use IRBuilder::Create(Cond)?Br instead of constructing instructions
manually with BranchInst::Create(). It's consistent with other
uses of IRBuilder in this pass, and has an additional important
benefit:

Using IRBuilder will ensure that new branch instruction will get
the same debug location as original terminator instruction it will
eventually replace.

For now I'm not adding a testcase, as currently original terminator
instruction also lack debug location due to missing debug location
propagation in BasicBlock::splitBasicBlock. That is, the testcase
will accompany the fix for the latter I'm going to mail soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239550 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoReplace an instance of custom atomics with standard ones.
Benjamin Kramer [Thu, 11 Jun 2015 17:30:34 +0000 (17:30 +0000)]
Replace an instance of custom atomics with standard ones.

Eventually I want to get rid of them entirely, but Statistic.h is still blocked
on MSVC bugs. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239545 91177308-0d34-0410-b5e6-96231b3b80d8