oota-llvm.git
9 years ago[llvm-pdbdump] Provide a mechanism to dump the raw contents of a PDB
David Majnemer [Thu, 15 Oct 2015 01:27:19 +0000 (01:27 +0000)]
[llvm-pdbdump] Provide a mechanism to dump the raw contents of a PDB

A PDB can be thought of as a very simple file system.  It is
occasionally illuminating to see the contents of the underlying files.

Differential Revision: http://reviews.llvm.org/D13674

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250356 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix -Wmismatched-tags error in modules build by removing unused forward declaration.
Richard Smith [Thu, 15 Oct 2015 01:15:26 +0000 (01:15 +0000)]
Fix -Wmismatched-tags error in modules build by removing unused forward declaration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250355 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[bugpoint] llvm-gcc doesn't exist anymore ...
Davide Italiano [Thu, 15 Oct 2015 01:12:01 +0000 (01:12 +0000)]
[bugpoint] llvm-gcc doesn't exist anymore ...

... so this comment is stale. Remove it. Range-loopify while here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250354 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ARM] Make sure we do not dereference the end iterator when accessing debug
Quentin Colombet [Thu, 15 Oct 2015 00:41:26 +0000 (00:41 +0000)]
[ARM] Make sure we do not dereference the end iterator when accessing debug
information.
Although the problem was always here, it would only be exposed when
shrink-wrapping is enable.

rdar://problem/23110493

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250352 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert r250349.
Akira Hatanaka [Thu, 15 Oct 2015 00:11:03 +0000 (00:11 +0000)]
Revert r250349.

Test case coal-sections-powerpc.s is still failing on some buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250351 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[JIT] TrivialMemoryManager: Fail if we can't allocate memory.
Davide Italiano [Thu, 15 Oct 2015 00:05:32 +0000 (00:05 +0000)]
[JIT] TrivialMemoryManager: Fail if we can't allocate memory.

TrivialMemoryManager currently doesn't check the return type of AllocateRWX --
and returns a 'null' MemoryBlock to its caller. As pointed out by Lang,
this exposes some serious issues with the MemoryManager interface. There's,
in fact, no way to report back an error to clients rather than aborting in
case memory can't be allocated. Eventually the interface will grow to support
this, but for now, fail sooner rather than later.

Differential Revision: http://reviews.llvm.org/D13627

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250350 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[MachO] Stop generating *coal* sections.
Akira Hatanaka [Wed, 14 Oct 2015 23:48:10 +0000 (23:48 +0000)]
[MachO] Stop generating *coal* sections.

Recommit r250342: add -arch=ppc32 to the RUN lines of powerpc tests.

Some background on why we don't have to use *coal* sections anymore:
Long ago when C++ was new and "weak" had not been standardized, an attempt was
made in cctools to support C++ inlines that can be coalesced by putting them
into their own section (TEXT/textcoal_nt instead of TEXT/text).

The current macho linker supports the weak-def bit on any symbol to allow it to
be coalesced, but the compiler still puts weak-def functions/data into alternate
section names, which the linker must map back to the base section name.

This patch makes changes that are necessary to prevent the compiler from using
the "coal" sections and have it use the non-coal sections instead when the
target architecture is not powerpc:

TEXT/textcoal_nt instead use TEXT/text
TEXT/const_coal instead use TEXT/const
DATA/datacoal_nt instead use DATA/data

If the target is powerpc, we continue to use the *coal* sections since anyone
targeting powerpc is probably using an old linker that doesn't have support for
the weak-def bits.

Also, have the assembler issue a warning if it encounters a *coal* section in
the assembly file and inform the users to use the non-coal sections instead.

rdar://problem/14265330

Differential Revision: http://reviews.llvm.org/D13188

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250349 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert r250342.
Akira Hatanaka [Wed, 14 Oct 2015 23:29:10 +0000 (23:29 +0000)]
Revert r250342.

Investigate why coal-sections-powerpc.s is failing on some buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250346 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUpdate the branch weight metadata in JumpThreading pass.
Cong Hou [Wed, 14 Oct 2015 23:14:17 +0000 (23:14 +0000)]
Update the branch weight metadata in JumpThreading pass.

Currently in JumpThreading pass, the branch weight metadata is not updated after CFG modification. Consider the jump threading on PredBB, BB, and SuccBB. After jump threading, the weight on BB->SuccBB should be adjusted as some of it is contributed by the edge PredBB->BB, which doesn't exist anymore. This patch tries to update the edge weight in metadata on BB->SuccBB by scaling it by 1 - Freq(PredBB->BB) / Freq(BB->SuccBB).

This is the third attempt to submit this patch, while the first two led to failures in some FDO tests. After investigation, it is the edge weight normalization that caused those failures. In this patch the edge weight normalization is fixed so that there is no zero weight in the output and the sum of all weights can fit in 32-bit integer. Several unit tests are added.

Differential revision: http://reviews.llvm.org/D10979

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250345 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTest case which should have been part of 250343
Philip Reames [Wed, 14 Oct 2015 22:47:06 +0000 (22:47 +0000)]
Test case which should have been part of 250343

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250344 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[SimplifyCFG] Speculatively flatten CFG based on profiling metadata
Philip Reames [Wed, 14 Oct 2015 22:46:19 +0000 (22:46 +0000)]
[SimplifyCFG] Speculatively flatten CFG based on profiling metadata

If we have a series of branches which are all unlikely to fail, we can possibly combine them into a single check on the fastpath combined with a bit of dispatch logic on the slowpath. We don't want to do this unconditionally since it requires speculating instructions past a branch, but if the profiling metadata on the branch indicates profitability, this can reduce the number of checks needed along the fast path.

The canonical example this is trying to handle is removing the second bounds check implied by the Java code: a[i] + a[i+1]. Note that it can currently only do so for really simple conditions and the values of a[i] can't be used anywhere except in the addition. (i.e. the load has to have been sunk already and not prevent speculation.) I plan on extending this transform over the next few days to handle alternate sequences.

Differential Revision: http://reviews.llvm.org/D13070

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250343 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[MachO] Stop generating *coal* sections.
Akira Hatanaka [Wed, 14 Oct 2015 22:45:36 +0000 (22:45 +0000)]
[MachO] Stop generating *coal* sections.

Some background on why we don't have to use *coal* sections anymore:
Long ago when C++ was new and "weak" had not been standardized, an attempt was
made in cctools to support C++ inlines that can be coalesced by putting them
into their own section (TEXT/textcoal_nt instead of TEXT/text).

The current macho linker supports the weak-def bit on any symbol to allow it to
be coalesced, but the compiler still puts weak-def functions/data into alternate
section names, which the linker must map back to the base section name.

This patch makes changes that are necessary to prevent the compiler from using
the "coal" sections and have it use the non-coal sections instead when the
target architecture is not powerpc:

TEXT/textcoal_nt instead use TEXT/text
TEXT/const_coal instead use TEXT/const
DATA/datacoal_nt instead use DATA/data

If the target is powerpc, we continue to use the *coal* sections since anyone
targeting powerpc is probably using an old linker that doesn't have support for
the weak-def bits.

Also, have the assembler issue a warning if it encounters a *coal* section in
the assembly file and inform the users to use the non-coal sections instead.

rdar://problem/14265330

Differential Revision: http://reviews.llvm.org/D13188

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250342 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTighten known bits for ctpop based on zero input bits
Philip Reames [Wed, 14 Oct 2015 22:42:12 +0000 (22:42 +0000)]
Tighten known bits for ctpop based on zero input bits

This is a cleaned up patch from the one written by John Regehr based on the findings of the Souper superoptimizer.

The basic idea here is that input bits that are known zero reduce the maximum count that the intrinsic could return. We know that the number of bits required to represent a particular count is at most log2(N)+1.

Differential Revision: http://reviews.llvm.org/D13253

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250338 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] Make LLVM_VERSION_* variables user definable
Chris Bieneman [Wed, 14 Oct 2015 21:50:09 +0000 (21:50 +0000)]
[CMake] Make LLVM_VERSION_* variables user definable

CMake's set command overwrites existing values. Package maintainers may want or need to set the version variables manually, so we need to only set them if they are not already defined. Note I use the "if(NOT DEFINED ...)" syntax deliberately in the last case because empty string is a valid value for the suffx, but not the other variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250333 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoadd x86 codegen tests for 'add nsw' followed by 'sext'
Sanjay Patel [Wed, 14 Oct 2015 21:47:03 +0000 (21:47 +0000)]
add x86 codegen tests for 'add nsw' followed by 'sext'

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250332 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[PowerPC] Fix invalid lxvdsx optimization (PR25157)
Bill Schmidt [Wed, 14 Oct 2015 20:45:00 +0000 (20:45 +0000)]
[PowerPC] Fix invalid lxvdsx optimization (PR25157)

PR25157 identifies a bug where a load plus a vector shuffle is
incorrectly converted into an LXVDSX instruction.  That optimization
is only valid if the load is of a doubleword, and in the noted case,
it was not.  This corrects that problem.

Joint patch with Eric Schweitz, who provided the bugpoint-reduced test
case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250324 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Bugpoint] Use 'CC' instead of 'GCC' for variable naming.
Davide Italiano [Wed, 14 Oct 2015 20:29:54 +0000 (20:29 +0000)]
[Bugpoint] Use 'CC' instead of 'GCC' for variable naming.

We now use clang by default and fallback to gcc when requested.
With this commit, names reflect reality. No functional change
intended.

Discussed with: Rafael Espindola.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250321 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[IDFCalculator] Use DominatorTreeBase instead of DominatorTree
Daniel Berlin [Wed, 14 Oct 2015 19:54:24 +0000 (19:54 +0000)]
[IDFCalculator] Use DominatorTreeBase instead of DominatorTree

Summary:
IDFCalculator used a DominatorTree instance for its calculations. Since the PostDominatorTree struct is not a subclass of DominatorTree, it wasn't possible to use PDT in IDFCalculator to compute post-dominance frontiers.

This patch makes IDFCalculator work with a DominatorTreeBase<BasicBlock> instead, which enables PDTs to be utilized.

Patch by Victor Campos (vhscampos@gmail.com)

Reviewers: dberlin

Subscribers: dberlin, llvm-commits

Differential Revision: http://reviews.llvm.org/D13725

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250320 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[Bugpoint] Use clang by default.
Davide Italiano [Wed, 14 Oct 2015 19:48:01 +0000 (19:48 +0000)]
[Bugpoint] Use clang by default.

We now rely on gcc only if either of the following is true:
1) -gcc option is passed by the user
2) clang is not found in the default path.

Differential Revision:  http://reviews.llvm.org/D13642

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250318 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[LoopUnswitch] Correct misleading comments.
Chen Li [Wed, 14 Oct 2015 19:47:43 +0000 (19:47 +0000)]
[LoopUnswitch] Correct misleading comments.

Reviewers: reames

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D13738

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250317 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd 'other' in description of extractvalue operands.
Arch D. Robison [Wed, 14 Oct 2015 19:10:45 +0000 (19:10 +0000)]
Add 'other' in description of extractvalue operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250314 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSample profiles - Add documentation for binary profile encoding. NFC.
Diego Novillo [Wed, 14 Oct 2015 18:36:30 +0000 (18:36 +0000)]
Sample profiles - Add documentation for binary profile encoding. NFC.

This adds documentation for the binary profile encoding and moves the
documentation for the text encoding into the header file
SampleProfReader.h.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250309 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoA doccomment for CombineTo, and some NFC refactorings
Artyom Skrobov [Wed, 14 Oct 2015 17:18:35 +0000 (17:18 +0000)]
A doccomment for CombineTo, and some NFC refactorings

Summary:
Caching SDLoc(N), instead of recreating it in every single
function call, keeps the code denser, and allows to unwrap long lines.

Reviewers: sunfish, atrick, sdmitrouk

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D13726

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250305 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMerge DAGCombiner::visitSREM and DAGCombiner::visitUREM (NFC)
Artyom Skrobov [Wed, 14 Oct 2015 16:54:14 +0000 (16:54 +0000)]
Merge DAGCombiner::visitSREM and DAGCombiner::visitUREM (NFC)

Summary: The two implementations had more code in common than not.

Reviewers: sunfish, MatzeB, sdmitrouk

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D13724

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250302 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[llvm-readobj/ELF] fix: add correct test inputs
Igor Kudrin [Wed, 14 Oct 2015 12:21:30 +0000 (12:21 +0000)]
[llvm-readobj/ELF] fix: add correct test inputs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250292 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[llvm-readobj/ELF] Print GNU Hash section
Igor Kudrin [Wed, 14 Oct 2015 12:11:50 +0000 (12:11 +0000)]
[llvm-readobj/ELF] Print GNU Hash section

Add a new command line switch, -gnu-hash-table, to print the content of that section.

Differential Revision: http://reviews.llvm.org/D13696

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250291 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[x86][FastISel] Teach how to select nontemporal stores.
Andrea Di Biagio [Wed, 14 Oct 2015 10:03:13 +0000 (10:03 +0000)]
[x86][FastISel] Teach how to select nontemporal stores.

This patch teaches x86 fast-isel how to select nontemporal stores.

On x86, we can use MOVNTI for nontemporal stores of doublewords/quadwords.
Instructions (V)MOVNTPS/PD/DQ can be used for SSE2/AVX aligned nontemporal
vector stores.

Before this patch, fast-isel always selected 'movd/movq' instead of 'movnti'
for doubleword/quadword nontemporal stores. In the case of nontemporal stores
of aligned vectors, fast-isel always selected movaps/movapd/movdqa instead of
movntps/movntpd/movntdq.

With this patch, if we use SSE2/AVX intrinsics for nontemporal stores we now
always get the expected (V)MOVNT instructions.
The lack of fast-isel support for nontemporal stores was spotted when analyzing
the -O0 codegen for nontemporal stores.

Differential Revision: http://reviews.llvm.org/D13698

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250285 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] Add LLVM_VERSION_PATCH to the -current_version flag for libLTO and libLLVM.
Chris Bieneman [Wed, 14 Oct 2015 07:50:21 +0000 (07:50 +0000)]
[CMake] Add LLVM_VERSION_PATCH to the -current_version flag for libLTO and libLLVM.

This is to match autoconf where LLVM_SUBMIT_SUBVERSION is usually set to ${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250277 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] Fixing the bots I broke.
Chris Bieneman [Wed, 14 Oct 2015 07:40:34 +0000 (07:40 +0000)]
[CMake] Fixing the bots I broke.

I meant to put the POLICY setting below the version defaults.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250276 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] Set Policy CMP0048 to NEW
Chris Bieneman [Wed, 14 Oct 2015 07:37:00 +0000 (07:37 +0000)]
[CMake] Set Policy CMP0048 to NEW

CMake 3.0 introduced the VERSION option for the project() command. If you don't specify the VERSION in the function it will clear out variables matching ${PROJECT_NAME}_VERSION_${MAJOR|MINOR|PATCH|TWEAK}.

This makes overriding LLVM_VERSION_* not work properly with newer versions of CMake. To make this work properly we need to:

(1) Optionally set the policy to NEW
(2) Move default versions and setting PACKAGE_VERSION to before the call to project()
(3) If the policy is set, pass the VERSION and LANGUAGES options in the new format

This change should have no behavioral change for CMake versions before 3.0, and it makes the behavior of later versions match the earlier versions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250275 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd a instrumentation test for Linux
Xinliang David Li [Wed, 14 Oct 2015 07:24:14 +0000 (07:24 +0000)]
Add a instrumentation test for Linux

Make sure __llvm_profile_init is not emitted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250274 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Update CPU detection to only enable XSAVE features if the OS has enabled them...
Craig Topper [Wed, 14 Oct 2015 05:37:42 +0000 (05:37 +0000)]
[X86] Update CPU detection to only enable XSAVE features if the OS has enabled them and the saving of YMM state. This seems to be consistent with gcc behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250269 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Add XSAVE feature flags to their various processors.
Craig Topper [Wed, 14 Oct 2015 05:37:38 +0000 (05:37 +0000)]
[X86] Add XSAVE feature flags to their various processors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250268 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUse range-based for loops. NFC
Craig Topper [Wed, 14 Oct 2015 04:36:00 +0000 (04:36 +0000)]
Use range-based for loops. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250266 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert r250204 and r250240 due to bot failure. We failed to build PGO-ed clang.
Manman Ren [Wed, 14 Oct 2015 03:04:03 +0000 (03:04 +0000)]
Revert r250204 and r250240 due to bot failure. We failed to build PGO-ed clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250264 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[msan] Fix crash on multiplication by a non-integer constant.
Evgeniy Stepanov [Wed, 14 Oct 2015 00:21:13 +0000 (00:21 +0000)]
[msan] Fix crash on multiplication by a non-integer constant.

Fixes PR25160.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250260 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[asan] Disabling speculative loads under asan. Patch by Mike Aizatsky
Kostya Serebryany [Wed, 14 Oct 2015 00:21:05 +0000 (00:21 +0000)]
[asan] Disabling speculative loads under asan. Patch by Mike Aizatsky

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250259 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRename one of our two llvm::GCOVOptions classes to llvm::GCOV::Options. We used
Richard Smith [Wed, 14 Oct 2015 00:04:19 +0000 (00:04 +0000)]
Rename one of our two llvm::GCOVOptions classes to llvm::GCOV::Options. We used
to get away with this because llvm/Support/GCOV.h was an implementation detail
of the llvm-gcov tool, but it's now being used by FDO.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250258 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSplit -pedantic and -Wno-long-long into two separate flags so libc++ can remove ...
Eric Fiselier [Tue, 13 Oct 2015 23:51:58 +0000 (23:51 +0000)]
Split -pedantic and -Wno-long-long into two separate flags so libc++ can remove -pedantic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250255 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[SCEV] Use `SCEV::isAllOnesValue` directly; NFC.
Sanjoy Das [Tue, 13 Oct 2015 23:28:31 +0000 (23:28 +0000)]
[SCEV] Use `SCEV::isAllOnesValue` directly; NFC.

Instead of `dyn_cast` ing to `SCEVConstant` and checking the contained
`ConstantInteger.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250251 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] Add compatibility and current versioning to libLTO to match autoconf support.
Chris Bieneman [Tue, 13 Oct 2015 22:54:29 +0000 (22:54 +0000)]
[CMake] Add compatibility and current versioning to libLTO to match autoconf support.

This also adds LLVM_LTO_VERSION_OFFSET to support functional equivalence to autoconf.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250245 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] libLLVM's compatibility version should be 1.
Chris Bieneman [Tue, 13 Oct 2015 22:54:27 +0000 (22:54 +0000)]
[CMake] libLLVM's compatibility version should be 1.

This is in matching with the autoconf build system.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250244 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSample profile reader - remove dead code. NFC.
Diego Novillo [Tue, 13 Oct 2015 22:48:48 +0000 (22:48 +0000)]
Sample profile reader - remove dead code. NFC.

This removes old remnants from the gcov reader. I missed these when I
re-wrote it recently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250242 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSample profiles - Add a name table to the binary encoding.
Diego Novillo [Tue, 13 Oct 2015 22:48:46 +0000 (22:48 +0000)]
Sample profiles - Add a name table to the binary encoding.

Binary encoded profiles used to encode all function names inline at
every reference.  This is clearly suboptimal in terms of space.  This
patch fixes this by adding a name table to the header of the file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250241 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUpdate MachineBranchProbabilityInfo::normalizeEdgeWeights to make sure there is no...
Cong Hou [Tue, 13 Oct 2015 22:27:41 +0000 (22:27 +0000)]
Update MachineBranchProbabilityInfo::normalizeEdgeWeights to make sure there is no zero weight in the output, and also add a missing test for JumpThreading.

The test is for the patch in http://reviews.llvm.org/D10979 but was missing when committing that patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250240 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAdd missing #include, found by modules build.
Richard Smith [Tue, 13 Oct 2015 22:24:10 +0000 (22:24 +0000)]
Add missing #include, found by modules build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250239 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[InlineFunction] Correctly inline TerminatePadInst
David Majnemer [Tue, 13 Oct 2015 22:08:17 +0000 (22:08 +0000)]
[InlineFunction] Correctly inline TerminatePadInst

We forgot to append the terminatepad's arguments which resulted in us
treating the old terminatepad as an argument to the new terminatepad
causing us to crash immediately.  Instead, add the old terminatepad's
arguments to the new terminatepad.

This fixes PR25155.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250234 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[WebAssembly] Remove a TODO comment which is no longer needed. NFC.
Dan Gohman [Tue, 13 Oct 2015 22:06:40 +0000 (22:06 +0000)]
[WebAssembly] Remove a TODO comment which is no longer needed. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250233 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[uselistorder] Insert blank line, NFC
Vedant Kumar [Tue, 13 Oct 2015 21:51:02 +0000 (21:51 +0000)]
[uselistorder] Insert blank line, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250231 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix layering violation: Analysis should not include headers from Transforms
Richard Smith [Tue, 13 Oct 2015 21:32:32 +0000 (21:32 +0000)]
Fix layering violation: Analysis should not include headers from Transforms
(and in this case isn't even using anything from those headers).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250228 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTypo.
Chad Rosier [Tue, 13 Oct 2015 20:59:16 +0000 (20:59 +0000)]
Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250224 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTweak to r250117 and change to use ErrorOr and drop isSizeValid for
Kevin Enderby [Tue, 13 Oct 2015 20:48:04 +0000 (20:48 +0000)]
Tweak to r250117 and change to use ErrorOr and drop isSizeValid for
ArchiveMemberHeader, suggestion by Rafael Espíndola.

Also The clang-x86-win2008-selfhost bot still does not like the
malformed-machos 00000031.a test, so removing it for now.  All
the other bots are fine with it however.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250222 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[WinEH] Add CoreCLR EH table emission
Joseph Tremoulet [Tue, 13 Oct 2015 20:18:27 +0000 (20:18 +0000)]
[WinEH] Add CoreCLR EH table emission

Summary:
Emit the handler and clause locations immediately after the standard
xdata.
Clauses are emitted in the same order and format used to communiate them
to the CLR Execution Engine.
Add a lit test to verify correct table generation on a small but
interesting example function.

Reviewers: majnemer, andrew.w.kaylor, rnk

Subscribers: pgavlin, AndyAyers, llvm-commits

Differential Revision: http://reviews.llvm.org/D13451

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250219 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAMDGPU: Remove implicit ilist iterator conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 20:07:10 +0000 (20:07 +0000)]
AMDGPU: Remove implicit ilist iterator conversions, NFC

One of the changes in lib/Target/AMDGPU/AMDGPUMCInstLower.cpp was a new
one.  Previously, bundle iterators and single-instruction iterators
could be compared to each other (comparing on underlying pointers).
I changed a comparison from using `MBB->end()` to using
`MBB->instr_end()`, since both end iterators should point at the some
place anyway.

I don't think the implicit conversion between the two iterator types is
a good idea since it's fairly easy to accidentally compare to the wrong
thing (they aren't always end iterators).  Otherwise I would have just
added the conversion.

Even with that, no there should be functionality change here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250218 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAArch64: Remove implicit ilist iterator conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 20:02:15 +0000 (20:02 +0000)]
AArch64: Remove implicit ilist iterator conversions, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250216 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoSelectionDAG: Remove implicit ilist iterator conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 19:47:46 +0000 (19:47 +0000)]
SelectionDAG: Remove implicit ilist iterator conversions, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250214 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoScalar: Remove remaining ilist iterator implicit conversions
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 19:26:58 +0000 (19:26 +0000)]
Scalar: Remove remaining ilist iterator implicit conversions

Remove remaining `ilist_iterator` implicit conversions from
LLVMScalarOpts.

This change exposed some scary behaviour in
lib/Transforms/Scalar/SCCP.cpp around line 1770.  This patch changes a
call from `Function::begin()` to `&Function::front()`, since the return
was immediately being passed into another function that takes a
`Function*`.  `Function::front()` started to assert, since the function
was empty.  Note that `Function::end()` does not point at a legal
`Function*` -- it points at an `ilist_half_node` -- so the other
function was getting garbage before.  (I added the missing check for
`Function::isDeclaration()`.)

Otherwise, no functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250211 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[AArch64] Check the size of the vector before accessing its elements.
Akira Hatanaka [Tue, 13 Oct 2015 18:55:34 +0000 (18:55 +0000)]
[AArch64] Check the size of the vector before accessing its elements.

This fixes an assert in AArch64AsmParser::MatchAndEmitInstruction.

rdar://problem/23081753

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250207 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUpdate the branch weight metadata in JumpThreading pass.
Cong Hou [Tue, 13 Oct 2015 18:43:10 +0000 (18:43 +0000)]
Update the branch weight metadata in JumpThreading pass.

Currently in JumpThreading pass, the branch weight metadata is not updated after CFG modification. Consider the jump threading on PredBB, BB, and SuccBB. After jump threading, the weight on BB->SuccBB should be adjusted as some of it is contributed by the edge PredBB->BB, which doesn't exist anymore. This patch tries to update the edge weight in metadata on BB->SuccBB by scaling it by 1 - Freq(PredBB->BB) / Freq(BB->SuccBB).

Differential revision: http://reviews.llvm.org/D10979

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250204 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[PGO]: Eliminate calls to __llvm_profile_register_function for Linux.
Xinliang David Li [Tue, 13 Oct 2015 18:39:48 +0000 (18:39 +0000)]
[PGO]: Eliminate calls to __llvm_profile_register_function for Linux.

On Linux, the profile runtime can use __start_SECTNAME and __stop_SECTNAME
symbols defined by the linker to locate the start and end location of
a named section (with C name). This eliminates the need for instrumented
binary to call __llvm_profile_register_function during start-up time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250199 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoScalar: Remove some implicit ilist iterator conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 18:26:00 +0000 (18:26 +0000)]
Scalar: Remove some implicit ilist iterator conversions, NFC

Remove some of the implicit ilist iterator conversions in
LLVMScalarOpts.  More to go.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250197 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoExecutionEngine: Remove implicit ilist iterator conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 18:11:02 +0000 (18:11 +0000)]
ExecutionEngine: Remove implicit ilist iterator conversions, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250193 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoOrcJIT: Remove implicit ilist iterator conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 18:10:59 +0000 (18:10 +0000)]
OrcJIT: Remove implicit ilist iterator conversions, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250192 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoIPO: Remove implicit ilist iterator conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 17:51:03 +0000 (17:51 +0000)]
IPO: Remove implicit ilist iterator conversions, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250187 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoInstrumentation: Remove ilist iterator implicit conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 17:39:10 +0000 (17:39 +0000)]
Instrumentation: Remove ilist iterator implicit conversions, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250186 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoInterpreter: Remove implicit ilist iterator conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 17:33:41 +0000 (17:33 +0000)]
Interpreter: Remove implicit ilist iterator conversions, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250185 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoThe issue with the malformed-machos 00000031.a test is that it needed ‘-arch x86_64’
Kevin Enderby [Tue, 13 Oct 2015 17:06:34 +0000 (17:06 +0000)]
The issue with the malformed-machos 00000031.a test is that it needed ‘-arch x86_64’
flag as it was a Mach-O universal file.

The default as to which architecture slice that is dumped without an -arch flag
depends on the host architecture and the contents of the universal file.  The
malformed archive 00000031.a file has both an x86_64 and i386 slice.  So for
for x86_64 hosts only that slice is dumped, for non-x86_64 hosts, which is many
of the bots both slices are dumped.

The test is intended to only check that the malformation of the x86_64 which
has a non-decimal characters in the size field of the archive header so it no
longer crashes.

The problem turned out that the i388 slice of the malformed archive had a
different malformation which was causing the non-x86_64 bots to get this error:

llvm-objdump -macho -disassemble -arch i386 00000031.a
Archive : .00000031.a
00000031.a(c_start.o):
LLVM ERROR: Symbol name entry points before beginning or past end of file.

and causing the test as it was written to fail.  So by adding ‘-arch x86_64’ it
should correct the test and the malformation on the i388 slice will not be
dumped.

Also the removal of the malformed-machos mem-crup-0261.macho was not causing
the issue so that is put back in.

Sorry for the churn on these tests, Kev

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250184 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoInstCombine: Remove ilist iterator implicit conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 16:59:33 +0000 (16:59 +0000)]
InstCombine: Remove ilist iterator implicit conversions, NFC

Stop relying on implicit conversions of ilist iterators in
LLVMInstCombine.  No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250183 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoBitcodeReader: Remove ilist iterator implicit conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 16:48:55 +0000 (16:48 +0000)]
BitcodeReader: Remove ilist iterator implicit conversions, NFC

Get LLVMBitReader building without relying on `ilist_iterator` implicit
conversions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250181 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[WinEH] Iterate state changes instead of invokes
Joseph Tremoulet [Tue, 13 Oct 2015 16:44:30 +0000 (16:44 +0000)]
[WinEH] Iterate state changes instead of invokes

Summary:
Add an iterator that can walk across blocks and which visits the state
transitions rather than state ranges, with explicit transitions to -1
indicating the presence of top-level calls that may throw and cause the
current function to unwind to caller.  This will simplify code that needs
to identify nested try regions.

Refactor SEH and C++EH table generation to use the new
InvokeStateChangeIterator, and remove the InvokeLabelIterator they were
using.

Reviewers: majnemer, andrew.w.kaylor, rnk

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D13623

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250179 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix a couple of comments; NFC
Xinliang David Li [Tue, 13 Oct 2015 16:35:59 +0000 (16:35 +0000)]
Fix a couple of comments; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250177 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agofunction names should start with a lower case letter; NFC
Sanjay Patel [Tue, 13 Oct 2015 16:23:00 +0000 (16:23 +0000)]
function names should start with a lower case letter; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250174 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agodon't repeat function/class/variable names in comments; NFC
Sanjay Patel [Tue, 13 Oct 2015 15:12:27 +0000 (15:12 +0000)]
don't repeat function/class/variable names in comments; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250162 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[InstCombine][SSE4A] Remove broken INSERTQI range combining optimization
Simon Pilgrim [Tue, 13 Oct 2015 14:48:54 +0000 (14:48 +0000)]
[InstCombine][SSE4A] Remove broken INSERTQI range combining optimization

As discussed in D13348 - the INSERTQI range combining code is wrong in that it confuses the insertion bit index with an extraction bit index.

The remaining legal combines are very unlikely (especially once we've converted to shuffles in D13348) so I'm removing the optimization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250160 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[GlobalsAA] Turn GlobalsAA on again by default
James Molloy [Tue, 13 Oct 2015 10:43:57 +0000 (10:43 +0000)]
[GlobalsAA] Turn GlobalsAA on again by default

Now that all the known faults with GlobalsAA have been fixed, flip the big switch on -enable-non-lto-gmr again.

Feel free to pester me with any more bugs found, and don't hesitate to flip the switch back off.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250157 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[GlobalsAA] Don't assume anything about functions that may be overridden
James Molloy [Tue, 13 Oct 2015 10:43:33 +0000 (10:43 +0000)]
[GlobalsAA] Don't assume anything about functions that may be overridden

Weak linkage and friends allow a symbol to be overriden outside the
code generator's model, so GlobalsAA shouldn't assume that anything it
can compute about such a symbol is valid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250156 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTest commit
Christof Douma [Tue, 13 Oct 2015 09:38:21 +0000 (09:38 +0000)]
Test commit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250154 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove unnecessary argument in ipo iterator
Michael Liao [Tue, 13 Oct 2015 07:26:04 +0000 (07:26 +0000)]
Remove unnecessary argument in ipo iterator

- Otherwise, it won't be compiled if that template is instantiated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250153 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[IndVars] NFC Cleanup.
Sanjoy Das [Tue, 13 Oct 2015 07:17:38 +0000 (07:17 +0000)]
[IndVars] NFC Cleanup.

 - Rename methods according to the LLVM Coding Style
 - Merge adjacent anonymous namespace block
 - Use `auto` in two places

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250152 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFix line-ending issue. NFC.
Michael Kuperstein [Tue, 13 Oct 2015 06:22:30 +0000 (06:22 +0000)]
Fix line-ending issue. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250151 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] LLVM_PROFDATA_FILE only works if you're using clang, so we should error out...
Chris Bieneman [Tue, 13 Oct 2015 05:35:12 +0000 (05:35 +0000)]
[CMake] LLVM_PROFDATA_FILE only works if you're using clang, so we should error out if it is specified when not using clang.

Also updated the CMake docs.

Based on post-commit review of r250108 from Sean Silvas.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250150 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Mark the AAD and AAM aliases as not valid in 64-bit mode.
Craig Topper [Tue, 13 Oct 2015 05:12:07 +0000 (05:12 +0000)]
[X86] Mark the AAD and AAM aliases as not valid in 64-bit mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250148 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[X86] Change all the i8imm operands in XOP instructions to u8imm so the parser will...
Craig Topper [Tue, 13 Oct 2015 05:06:25 +0000 (05:06 +0000)]
[X86] Change all the i8imm operands in XOP instructions to u8imm so the parser will check the size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250147 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert 250089 due to bot failure. It failed when building clang itself with PGO.
Manman Ren [Tue, 13 Oct 2015 03:38:02 +0000 (03:38 +0000)]
Revert 250089 due to bot failure. It failed when building clang itself with PGO.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250145 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoBitcodeWriter: Stop using implicit ilist iterator conversion, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 03:26:19 +0000 (03:26 +0000)]
BitcodeWriter: Stop using implicit ilist iterator conversion, NFC

Now LLVMBitWriter compiles without implicit ilist iterator conversions.

In these cases, the cleanest thing was to switch to range-based for
loops.  Since there wasn't much noise I converted sub-loops and parent
loops as a drive-by.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250144 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[SCEV] Put some utilites in the ScalarEvolution class
Sanjoy Das [Tue, 13 Oct 2015 02:53:27 +0000 (02:53 +0000)]
[SCEV] Put some utilites in the ScalarEvolution class

In a later commit, `SplitBinaryAdd` will be used outside `IsConstDiff`,
so lift that out.  And lift out `IsConstDiff` as
`computeConstantDifference` to keep things clean and to avoid playing
C++ access specifier games.

NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250143 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTransformUtils: Remove implicit ilist iterator conversions, NFC
Duncan P. N. Exon Smith [Tue, 13 Oct 2015 02:39:05 +0000 (02:39 +0000)]
TransformUtils: Remove implicit ilist iterator conversions, NFC

Continuing the work from last week to remove implicit ilist iterator
conversions.  First related commit was probably r249767, with some more
motivation in r249925.  This edition gets LLVMTransformUtils compiling
without the implicit conversions.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250142 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoLooks like malformed-machos 00000031.a test is just getting a different error
Kevin Enderby [Tue, 13 Oct 2015 01:27:28 +0000 (01:27 +0000)]
Looks like malformed-machos 00000031.a test is just getting a different error
on some of the bots.  I’ll remove this test for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250141 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDAGCombiner: Don't stop finding better chain on 2 aliases
Matt Arsenault [Tue, 13 Oct 2015 00:49:00 +0000 (00:49 +0000)]
DAGCombiner: Don't stop finding better chain on 2 aliases

The comment says this was stopped because it was unlikely to be
profitable. This is not true if you want to combine vector loads
with multiple components.

For a simple case that looks like

t0 = load t0 ...
t1 = load t0 ...
t2 = load t0 ...
t3 = load t0 ...

t4 = store t0:1, t0:1
  t5 = store t4, t1:0
    t6 = store t5, t2:0
  t7 = store t6, t3:0

We want to get all of these stores onto a chain
that is a TokenFactor of these N loads. This mostly
solves the AMDGPU merge-stores.ll regressions
with -combiner-alias-analysis for merging vector
stores of vector loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250138 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agox86: preserve flags when folding atomic operations
JF Bastien [Tue, 13 Oct 2015 00:28:47 +0000 (00:28 +0000)]
x86: preserve flags when folding atomic operations

Summary:
D4796 taught LLVM to fold some atomic integer operations into a single
instruction. The pattern was unaware that the instructions clobbered
flags.

This patch adds the missing EFLAGS definition.

Floating point operations don't set flags, the subsequent fadd
optimization is therefore correct. The same applies for surrounding
load/store optimizations.

Reviewers: rsmith, rtrieu

Subscribers: llvm-commits, reames, morisset

Differential Revision: http://reviews.llvm.org/D13680

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250135 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAMDGPU: Refactor isVGPRToSGPRCopy
Matt Arsenault [Tue, 13 Oct 2015 00:07:54 +0000 (00:07 +0000)]
AMDGPU: Refactor isVGPRToSGPRCopy

It should now correctly handle physical registers and make
it easier to identify the other direction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250132 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove the correct unstable malformed-machos test mem-crup-0261.macho and
Kevin Enderby [Tue, 13 Oct 2015 00:05:17 +0000 (00:05 +0000)]
Remove the correct unstable malformed-machos test mem-crup-0261.macho and
restore the malformed-machos 00000031.a test.  Hopefully this will get all the
build bots happy again.  I’ll again keep an eye on them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250130 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDAGCombiner: Combine extract_vector_elt from build_vector
Matt Arsenault [Mon, 12 Oct 2015 23:59:50 +0000 (23:59 +0000)]
DAGCombiner: Combine extract_vector_elt from build_vector

This basic combine was surprisingly missing.
AMDGPU legalizes many operations in terms of 32-bit vector components,
so not doing this results in many extra copies and subregister extracts
that need to be cleaned up later.

InstCombine already does this for the hasOneUse case. The target hook
is to fix a handful of tests which break (e.g. ARM/vmov.ll) which turn
from a vector materialize repeated immediate instruction to a constant
vector load with more scalar copies from it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250129 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[InstCombine] Tidied up SSE4A tests.
Simon Pilgrim [Mon, 12 Oct 2015 23:07:06 +0000 (23:07 +0000)]
[InstCombine] Tidied up SSE4A tests.

First stage of bugfix discussed in D13348

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250121 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTemporarily remove the test added in r250117 while I investigate why two
Kevin Enderby [Mon, 12 Oct 2015 23:03:43 +0000 (23:03 +0000)]
Temporarily remove the test added in r250117 while I investigate why two
of the build bots get a different error on that malformed file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250120 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAssign correct edge weights to unwind destinations when lowering invoke statement.
Cong Hou [Mon, 12 Oct 2015 23:02:58 +0000 (23:02 +0000)]
Assign correct edge weights to unwind destinations when lowering invoke statement.

When lowering invoke statement, all unwind destinations are directly added as successors of call site block, and the weight of those new edges are not assigned properly. Actually, default weight 16 are used for those edges. This patch calculates the proper edge weights for those edges when collecting all unwind destinations.

Differential revision: http://reviews.llvm.org/D13354

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250119 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[SelectionDAG] Add common vector constant folding helper function
Simon Pilgrim [Mon, 12 Oct 2015 23:00:11 +0000 (23:00 +0000)]
[SelectionDAG] Add common vector constant folding helper function

We have a number of functions that implement constant folding of vectors (unary and binary ops) in near identical manners (and the differences don't appear to be critical).

This patch introduces a common implementation (SelectionDAG::FoldConstantVectorArithmetic) and calls this in both the unary and binary op cases.

After this initial patch I intend to begin enabling vector constant folding for a wider number of opcodes in SelectionDAG::getNode().

Differential Revision: http://reviews.llvm.org/D13665

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250118 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoFixed bugs in llvm-obdump while parsing Mach-O files from malformed archives
Kevin Enderby [Mon, 12 Oct 2015 22:04:54 +0000 (22:04 +0000)]
Fixed bugs in llvm-obdump while parsing Mach-O files from malformed archives
that caused aborts.  This was because of the characters of the ‘Size’ field in
the archive header did not contain decimal characters.

rdar://22983603

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250117 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] Adding support for passing in profiling data.
Chris Bieneman [Mon, 12 Oct 2015 21:13:20 +0000 (21:13 +0000)]
[CMake] Adding support for passing in profiling data.

Adds LLVM_PROFDATA_FILE option to allow specifying a profile data file to be used during compilation of LLVM and subprojects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250108 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoUpdate the branch weight metadata in JumpThreading pass.
Cong Hou [Mon, 12 Oct 2015 19:44:08 +0000 (19:44 +0000)]
Update the branch weight metadata in JumpThreading pass.

In JumpThreading pass, the branch weight metadata is not updated after CFG modification. Consider the jump threading on PredBB, BB, and SuccBB. After jump threading, the weight on BB->SuccBB should be adjusted as some of it is contributed by the edge PredBB->BB, which doesn't exist anymore. This patch tries to update the edge weight in metadata on BB->SuccBB by scaling it by 1 - Freq(PredBB->BB) / Freq(BB->SuccBB).

Differential revision: http://reviews.llvm.org/D10979

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250089 91177308-0d34-0410-b5e6-96231b3b80d8