platform/upstream/llvm.git
7 years ago[PPC64, Sanitizers] Proper stack frame for the thread spawned in internal_clone
Alex Shlyapnikov [Mon, 10 Apr 2017 23:24:50 +0000 (23:24 +0000)]
[PPC64, Sanitizers] Proper stack frame for the thread spawned in internal_clone

Summary:
Set up the proper stack frame for the thread spawned in internal_clone,
the current code does not follow ABI (and causes SEGV trying to use this
malformed frame).

Reviewers: wschmidt

Subscribers: kubamracek, llvm-commits

Differential Revision: https://reviews.llvm.org/D31555

llvm-svn: 299896

7 years ago[NewGVN] Surround with parens to clarify allegedly ambiguous precedence.
Davide Italiano [Mon, 10 Apr 2017 23:08:35 +0000 (23:08 +0000)]
[NewGVN] Surround with parens to clarify allegedly ambiguous precedence.

This Placates GCC7 with -Werror. Also, clang-format the assertions
while I'm here.

llvm-svn: 299895

7 years agoFix PR#32606: std::decay mishandles abominable function types
Marshall Clow [Mon, 10 Apr 2017 22:51:07 +0000 (22:51 +0000)]
Fix PR#32606: std::decay mishandles abominable function types

llvm-svn: 299894

7 years ago[MemorySSA] We don't need to compute dominator levels anymore.
Davide Italiano [Mon, 10 Apr 2017 22:44:46 +0000 (22:44 +0000)]
[MemorySSA] We don't need to compute dominator levels anymore.

Differential Revision:  https://reviews.llvm.org/D31818

llvm-svn: 299893

7 years agoCodeGen: BlockPlacement: Don't always tail-duplicate with no other successor.
Kyle Butt [Mon, 10 Apr 2017 22:28:22 +0000 (22:28 +0000)]
CodeGen: BlockPlacement: Don't always tail-duplicate with no other successor.

The math works out where it can actually be counter-productive. The probability
calculations correctly handle the case where the alternative is 0 probability,
rely on those calculations.

Includes a test case that demonstrates the problem.

llvm-svn: 299892

7 years agoCodeGen: BlockPlacement: Minor probability changes.
Kyle Butt [Mon, 10 Apr 2017 22:28:18 +0000 (22:28 +0000)]
CodeGen: BlockPlacement: Minor probability changes.

Qin may be large, and Succ may be more frequent than BB. Take these both into
account when deciding if tail-duplication is profitable.

llvm-svn: 299891

7 years agoCodeGen: BranchFolding: Merge identical blocks, even if they are short.
Kyle Butt [Mon, 10 Apr 2017 22:28:12 +0000 (22:28 +0000)]
CodeGen: BranchFolding: Merge identical blocks, even if they are short.

Merging identical blocks when it doesn't reduce fallthrough. It is common for
the blocks created from critical edge splitting to be identical. We would like
to merge these blocks whenever doing so would not reduce fallthrough.

llvm-svn: 299890

7 years agoUpdate for AllocaInst construction changes
Matt Arsenault [Mon, 10 Apr 2017 22:28:02 +0000 (22:28 +0000)]
Update for AllocaInst construction changes

llvm-svn: 299889

7 years agoAllow DataLayout to specify addrspace for allocas.
Matt Arsenault [Mon, 10 Apr 2017 22:27:50 +0000 (22:27 +0000)]
Allow DataLayout to specify addrspace for allocas.

LLVM makes several assumptions about address space 0. However,
alloca is presently constrained to always return this address space.
There's no real way to avoid using alloca, so without this
there is no way to opt out of these assumptions.

The problematic assumptions include:
- That the pointer size used for the stack is the same size as
  the code size pointer, which is also the maximum sized pointer.

- That 0 is an invalid, non-dereferencable pointer value.

These are problems for AMDGPU because alloca is used to
implement the private address space, which uses a 32-bit
index as the pointer value. Other pointers are 64-bit
and behave more like LLVM's notion of generic address
space. By changing the address space used for allocas,
we can change our generic pointer type to be LLVM's generic
pointer type which does have similar properties.

llvm-svn: 299888

7 years agoGet the TOC save offset off of PPCFrameLowering rather than a separate copy of the...
Eric Christopher [Mon, 10 Apr 2017 22:22:11 +0000 (22:22 +0000)]
Get the TOC save offset off of PPCFrameLowering rather than a separate copy of the same data.

llvm-svn: 299887

7 years agoBitcode: Merge the code for parsing global value module codes in the summary bitcode...
Peter Collingbourne [Mon, 10 Apr 2017 21:17:54 +0000 (21:17 +0000)]
Bitcode: Merge the code for parsing global value module codes in the summary bitcode reader. NFCI.

This code will need to be taught to handle string tables and it's better if
there is only one copy of it.

Differential Revision: https://reviews.llvm.org/D31829

llvm-svn: 299886

7 years ago[tsan] Fall-back to IPv6 if IPv4 is not available.
Vitaly Buka [Mon, 10 Apr 2017 21:03:21 +0000 (21:03 +0000)]
[tsan] Fall-back to IPv6 if IPv4 is not available.

Reviewers: eugenis

Subscribers: kubamracek, llvm-commits

Differential Revision: https://reviews.llvm.org/D31897

llvm-svn: 299885

7 years ago[msan] Choose in runtime if IPv4 or IPv6 are supported.
Vitaly Buka [Mon, 10 Apr 2017 21:03:18 +0000 (21:03 +0000)]
[msan] Choose in runtime if IPv4 or IPv6 are supported.

Summary: This reverts commit cab5051c691ce27a7ffac41e8e76ceb222ad9549.

Reviewers: eugenis

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D31894

llvm-svn: 299884

7 years agoEmit less compiler optimization remarks in samplepgo to reduce a call to findCalleeFu...
Dehao Chen [Mon, 10 Apr 2017 20:49:16 +0000 (20:49 +0000)]
Emit less compiler optimization remarks in samplepgo to reduce a call to findCalleeFunctionSamples which is going to be refactored.

Summary: Now the SamplePGO support is more stable, we do not need so many verbose optimization remarks emitted.

Reviewers: dnovillo, davidxl

Reviewed By: davidxl

Subscribers: fhahn, llvm-commits

Differential Revision: https://reviews.llvm.org/D31826

llvm-svn: 299883

7 years ago[GVNHoist] Call isGuaranteedToTransferExecutionToSuccessor on each instruction
Geoff Berry [Mon, 10 Apr 2017 20:45:17 +0000 (20:45 +0000)]
[GVNHoist] Call isGuaranteedToTransferExecutionToSuccessor on each instruction

w.r.t. https://bugs.llvm.org/show_bug.cgi?id=32153
The consensus seems to be isGuaranteedToTransferExecutionToSuccessor should be called for each function.

Patch by Aditya Kumar

Differential Revision: https://reviews.llvm.org/D31035

llvm-svn: 299882

7 years agoRevert "[asan] Fix dead stripping of globals on Linux (compiler-rt)."
Evgeniy Stepanov [Mon, 10 Apr 2017 20:36:43 +0000 (20:36 +0000)]
Revert "[asan] Fix dead stripping of globals on Linux (compiler-rt)."

This reverts r299698, which caused a big increase in object file size.

llvm-svn: 299881

7 years agoRevert "[asan] Put ctor/dtor in comdat."
Evgeniy Stepanov [Mon, 10 Apr 2017 20:36:36 +0000 (20:36 +0000)]
Revert "[asan] Put ctor/dtor in comdat."

This reverts commit r299696, which is causing mysterious test failures.

llvm-svn: 299880

7 years agoRevert "[asan] Fix dead stripping of globals on Linux."
Evgeniy Stepanov [Mon, 10 Apr 2017 20:36:30 +0000 (20:36 +0000)]
Revert "[asan] Fix dead stripping of globals on Linux."

This reverts commit r299697, which caused a big increase in object file size.

llvm-svn: 299879

7 years agoRevert "[IR] Make AttributeSetNode public, avoid temporary AttributeList copies"
Reid Kleckner [Mon, 10 Apr 2017 20:34:19 +0000 (20:34 +0000)]
Revert "[IR] Make AttributeSetNode public, avoid temporary AttributeList copies"

This reverts r299875. A Linux bot came back with a test failure:
http://bb.pgr.jp/builders/test-clang-i686-linux-RA/builds/741/steps/test_clang/logs/Clang%20%3A%3A%20CodeGen__2006-05-19-SingleEltReturn.c

llvm-svn: 299878

7 years agoUpdate for lifetime intrinsic signature change
Matt Arsenault [Mon, 10 Apr 2017 20:18:45 +0000 (20:18 +0000)]
Update for lifetime intrinsic signature change

llvm-svn: 299877

7 years agoAdd address space mangling to lifetime intrinsics
Matt Arsenault [Mon, 10 Apr 2017 20:18:21 +0000 (20:18 +0000)]
Add address space mangling to lifetime intrinsics

In preparation for allowing allocas to have non-0 addrspace.

llvm-svn: 299876

7 years ago[IR] Make AttributeSetNode public, avoid temporary AttributeList copies
Reid Kleckner [Mon, 10 Apr 2017 20:18:10 +0000 (20:18 +0000)]
[IR] Make AttributeSetNode public, avoid temporary AttributeList copies

Summary:
AttributeList::get(Fn|Ret|Param)Attributes no longer creates a temporary
AttributeList just to hide the AttributeSetNode type.

I've also added a factory method to create AttributeLists from a
parallel array of AttributeSetNodes. I think this simplifies
construction of AttributeLists when rewriting function prototypes.
Previously we would test if a particular index had attributes, and
conditionally add a temporary attribute list to a vector. Now the
attribute set vector is parallel to the argument vector already that
these passes already construct.

My long term vision is to wrap AttributeSetNode* inside an AttributeSet
type that holds the enum attributes, but that will come in a follow up
change.

I haven't done any performance measurements for this change because
profiling hasn't shown that any of the affected code is hot.

Reviewers: pete, chandlerc, sanjoy, hfinkel

Reviewed By: pete

Subscribers: jfb, llvm-commits

Differential Revision: https://reviews.llvm.org/D31198

llvm-svn: 299875

7 years agoRemove svn:eol-style properties from some files so 'git llvm push' works for them
Reid Kleckner [Mon, 10 Apr 2017 20:16:54 +0000 (20:16 +0000)]
Remove svn:eol-style properties from some files so 'git llvm push' works for them

llvm-svn: 299874

7 years agoFix signed / unsigned comparison warnings.
Zachary Turner [Mon, 10 Apr 2017 20:01:50 +0000 (20:01 +0000)]
Fix signed / unsigned comparison warnings.

llvm-svn: 299873

7 years ago[mips] Use Triple::isLittleEndian to check endianness. NFC
Simon Atanasyan [Mon, 10 Apr 2017 19:42:44 +0000 (19:42 +0000)]
[mips] Use Triple::isLittleEndian to check endianness. NFC

llvm-svn: 299872

7 years ago[InstCombine] improve variable names; NFCI
Sanjay Patel [Mon, 10 Apr 2017 19:38:36 +0000 (19:38 +0000)]
[InstCombine] improve variable names; NFCI

llvm-svn: 299871

7 years ago[InstSimplify] Use cast instead of dyn_cast after isa<> check. NFCI
Craig Topper [Mon, 10 Apr 2017 19:37:10 +0000 (19:37 +0000)]
[InstSimplify] Use cast instead of dyn_cast after isa<> check. NFCI

llvm-svn: 299870

7 years ago[llvm-pdbdump] Display padding bytes on record layout
Zachary Turner [Mon, 10 Apr 2017 19:33:29 +0000 (19:33 +0000)]
[llvm-pdbdump] Display padding bytes on record layout

When dumping classes, show where padding occurs, and at the end of the
class print statistics about how many bytes total of padding exist in a
class.

Since PDB doesn't specifically contain information about padding, we have
to mimic this by sort of reversing a small portion of the record layout
algorithm (e.g. looking at offsets and sizes and trying to determine
whether something is part of the same field or a new field).

Differential Revision: https://reviews.llvm.org/D31800

llvm-svn: 299869

7 years ago[OPENMP] Fix for PR32333: Crash in call of outlined Function.
Alexey Bataev [Mon, 10 Apr 2017 19:16:45 +0000 (19:16 +0000)]
[OPENMP] Fix for PR32333: Crash in call of outlined Function.

If the type of the captured variable is a pointer(s) to variably
modified type, this type was not processed correctly. Need to drill into
the type, find the innermost variably modified array type and convert it
to canonical parameter type.

llvm-svn: 299868

7 years ago[Asan] Eliminate SHADOW_TO_MEM() macro
Ivan A. Kosarev [Mon, 10 Apr 2017 19:13:47 +0000 (19:13 +0000)]
[Asan] Eliminate SHADOW_TO_MEM() macro
Differential Revision: https://reviews.llvm.org/D31592

llvm-svn: 299867

7 years ago[MemCpyOpt] Only replace memcpy with bitcast if address spaces match
Matt Arsenault [Mon, 10 Apr 2017 19:00:25 +0000 (19:00 +0000)]
[MemCpyOpt] Only replace memcpy with bitcast if address spaces match

Patch by James Price

llvm-svn: 299866

7 years agoMemorySSA: Make lifetime starts defs for mustaliased pointers
Daniel Berlin [Mon, 10 Apr 2017 18:46:00 +0000 (18:46 +0000)]
MemorySSA: Make lifetime starts defs for mustaliased pointers

Summary:
While we don't want them aliasing with other pointers, there seems to
be no point in not having them clobber must-aliased'd pointers.

If some day, we split the aliasing and ordering chains, we'd make this
not aliasing but an ordering barrier (IE it doesn't affect it's
memory, but we can't hoist it above it).

Reviewers: hfinkel, george.burgess.iv

Subscribers: Prazek, llvm-commits

Differential Revision: https://reviews.llvm.org/D31865

llvm-svn: 299865

7 years ago[ARM/AArch64] Ensure valid vector element types for interleaved accesses
Matthew Simpson [Mon, 10 Apr 2017 18:34:37 +0000 (18:34 +0000)]
[ARM/AArch64] Ensure valid vector element types for interleaved accesses

This patch refactors and strengthens the type checks performed for interleaved
accesses. The primary functional change is to ensure that the interleaved
accesses have valid element types. The added test cases previously failed
because the element type is f128.

Differential Revision: https://reviews.llvm.org/D31817

llvm-svn: 299864

7 years ago[InstCombine] Use commutable matchers and m_OneUse in visitSub to shorten code. Add...
Craig Topper [Mon, 10 Apr 2017 18:09:25 +0000 (18:09 +0000)]
[InstCombine] Use commutable matchers and m_OneUse in visitSub to shorten code. Add missing test cases.

In one case I removed commute handling for a multiply with a constant since we'll eventually get the constant on the right hand side.

llvm-svn: 299863

7 years ago[msan] Make test to fall-back to IPv6 if IPv4 is not available.
Vitaly Buka [Mon, 10 Apr 2017 17:59:07 +0000 (17:59 +0000)]
[msan] Make test to fall-back to IPv6 if IPv4 is not available.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31896

llvm-svn: 299862

7 years agoAMDGPU: Fix crash when disassembling VOP3 mac
Matt Arsenault [Mon, 10 Apr 2017 17:58:06 +0000 (17:58 +0000)]
AMDGPU: Fix crash when disassembling VOP3 mac

The unused dummy src2_modifiers is missing, so it crashes
when trying to print it.

I tried to fully remove src2_modifiers, but there are some
irritations in the places where it is converted to mad since
it starts to require modifying use lists while iterating over
them.

llvm-svn: 299861

7 years ago[msan] Replace AF_INET with AF_UNIX to avoid IPv4 vs IPv6 issues.
Vitaly Buka [Mon, 10 Apr 2017 17:58:03 +0000 (17:58 +0000)]
[msan] Replace AF_INET with AF_UNIX to avoid IPv4 vs IPv6 issues.

Summary: This reverts commit 79cf16bf224d6ac9fb9e0356c5947ebc4fd6ff92.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31895

llvm-svn: 299860

7 years ago[msan] Wrap sockaddr_in and socket for future IPv6 support.
Vitaly Buka [Mon, 10 Apr 2017 17:56:37 +0000 (17:56 +0000)]
[msan] Wrap sockaddr_in and socket for future IPv6 support.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31893

llvm-svn: 299859

7 years ago[msan] Reorder unittests for future parametrization.
Vitaly Buka [Mon, 10 Apr 2017 17:22:06 +0000 (17:22 +0000)]
[msan] Reorder unittests for future parametrization.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31892

llvm-svn: 299858

7 years ago[Support] Add support for finding unset bits in a BitVector.
Zachary Turner [Mon, 10 Apr 2017 17:18:54 +0000 (17:18 +0000)]
[Support] Add support for finding unset bits in a BitVector.

BitVector had methods for searching for the first and next
set bits, but it did not have analagous methods for finding
the first and next unset bits.  This is useful when your ones
and zeros are grouped together and you want to iterate over
ranges of ones and zeros.

Differential Revision: https://reviews.llvm.org/D31802

llvm-svn: 299857

7 years agoFix line endings.
Zachary Turner [Mon, 10 Apr 2017 17:17:11 +0000 (17:17 +0000)]
Fix line endings.

llvm-svn: 299856

7 years agoRemove eol-style:native from BitVector.h
Zachary Turner [Mon, 10 Apr 2017 17:15:11 +0000 (17:15 +0000)]
Remove eol-style:native from BitVector.h

llvm-svn: 299855

7 years ago[clangd] Relax absolute path checking assertion
Reid Kleckner [Mon, 10 Apr 2017 17:03:44 +0000 (17:03 +0000)]
[clangd] Relax absolute path checking assertion

clangd can process absolute paths from systems that don't use the native
path style, so this assertion needs to check both Windows and Posix path
styles.

Fixes PR32596

llvm-svn: 299854

7 years ago[InstCombine] Use m_c_Add to shorten some code. Add testcases for this fold since...
Craig Topper [Mon, 10 Apr 2017 16:59:40 +0000 (16:59 +0000)]
[InstCombine] Use m_c_Add to shorten some code. Add testcases for this fold since they were missing. NFC

llvm-svn: 299853

7 years ago[X86][MMX] Add fast-isel support for MMX non-temporal writes
Simon Pilgrim [Mon, 10 Apr 2017 16:58:07 +0000 (16:58 +0000)]
[X86][MMX] Add fast-isel support for MMX non-temporal writes

Differential Revision: https://reviews.llvm.org/D31754

llvm-svn: 299852

7 years ago[InstCombine] fix matching of or-of-icmps constants (PR32524)
Sanjay Patel [Mon, 10 Apr 2017 16:55:57 +0000 (16:55 +0000)]
[InstCombine] fix matching of or-of-icmps constants (PR32524)

Also, make the same change in and-of-icmps and remove a hack for detecting that case.

Finally, add some FIXME comments because the code duplication here is awful.

This should fix the remaining IR problem noted in:
https://bugs.llvm.org/show_bug.cgi?id=32524

llvm-svn: 299851

7 years agoRevert "XFAIL clangd tests on Windows"
Reid Kleckner [Mon, 10 Apr 2017 16:55:48 +0000 (16:55 +0000)]
Revert "XFAIL clangd tests on Windows"

This reverts r299849, apparently these tests only fail on my machine.

llvm-svn: 299850

7 years agoXFAIL clangd tests on Windows
Reid Kleckner [Mon, 10 Apr 2017 16:50:55 +0000 (16:50 +0000)]
XFAIL clangd tests on Windows

They all assert. Filed as PR32596.

llvm-svn: 299849

7 years agoImproves pretty printing of variable types in llvm-pdbdump
Adrian McCarthy [Mon, 10 Apr 2017 16:43:09 +0000 (16:43 +0000)]
Improves pretty printing of variable types in llvm-pdbdump

* Adds support for pointers to arrays, which was missing
* Adds some tests
* Improves consistency of const and volatile qualifiers
* Eliminates non-composable special case code for arrays and function by using
  a more general recursive approach
* Has a hack for getting the calling convention into the right spot for
  pointer-to-functions

Given the rapid changes happenning in llvm-pdbdump, this may be difficult to
merge.

Differential Revision: https://reviews.llvm.org/D31832

llvm-svn: 299848

7 years ago[InstCombine] Support folding of add instructions with vector constants into select...
Craig Topper [Mon, 10 Apr 2017 16:40:00 +0000 (16:40 +0000)]
[InstCombine] Support folding of add instructions with vector constants into select operations

We currently only fold scalar add of constants into selects. This improves this to support vectors too.

Differential Revision: https://reviews.llvm.org/D31683

llvm-svn: 299847

7 years ago[InstCombine] add test for PR32524; NFC
Sanjay Patel [Mon, 10 Apr 2017 16:28:08 +0000 (16:28 +0000)]
[InstCombine] add test for PR32524; NFC

llvm-svn: 299846

7 years ago[lldb] Fix ninja URL
Shoaib Meenai [Mon, 10 Apr 2017 15:41:15 +0000 (15:41 +0000)]
[lldb] Fix ninja URL

The old URL is a 404 now. Pointed out by Smirftsch1 on IRC.

llvm-svn: 299845

7 years ago[clangd] Fix nondeterminism in clangd test
Krasimir Georgiev [Mon, 10 Apr 2017 14:06:54 +0000 (14:06 +0000)]
[clangd] Fix nondeterminism in clangd test

llvm-svn: 299844

7 years ago[clangd] Remove ASTUnits for closed documents and cache CompilationDatabase per direc...
Krasimir Georgiev [Mon, 10 Apr 2017 13:31:39 +0000 (13:31 +0000)]
[clangd] Remove ASTUnits for closed documents and cache CompilationDatabase per directory.

Contributed by ilya-biryukov!

Differential Revision: https://reviews.llvm.org/D31746

llvm-svn: 299843

7 years ago[ARM] GlobalISel: Support G_FPOW for float and double
Diana Picus [Mon, 10 Apr 2017 09:27:39 +0000 (09:27 +0000)]
[ARM] GlobalISel: Support G_FPOW for float and double

Legalize to a libcall.

llvm-svn: 299841

7 years ago[InstCombine] Use commutable and/or/xor matchers to simplify some code
Craig Topper [Mon, 10 Apr 2017 07:13:40 +0000 (07:13 +0000)]
[InstCombine] Use commutable and/or/xor matchers to simplify some code

Summary:
This is my first time using the commutable matchers so wanted to make sure I was doing it right.

Are there any other matcher tricks to further shrink this? Can we commute the whole match so we don't have to LHS and RHS separately?

Reviewers: davide, spatel

Reviewed By: davide

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31680

llvm-svn: 299840

7 years ago[SelectionDAG] TargetLowering::SimplifyDemandedBits how to properly calculate KnownZe...
Craig Topper [Mon, 10 Apr 2017 07:06:44 +0000 (07:06 +0000)]
[SelectionDAG] TargetLowering::SimplifyDemandedBits how to properly calculate KnownZero bits for ISD::SETCC and ISD::AssertZExt

Summary:
For SETCC we aren't calculating the KnownZero bits at all. I've copied the code from computeKnownZero over for this.

For AssertZExt we were only setting KnownZero for bits that were demanded. But the upper bits are zero whether they were demanded or not.

I'm interested in fixing this because my belief is the first part of the ISD::AND handling code in SimplifyDemandedBits largely exists because of these two bugs. In that code we go to computeKnownBits for the LHS and optimize a RHS constant. Because computeKnownBits handles SETCC and AssertZExt correctly we get better information sometimes than when we call SimplifyDemandedBits on the LHS later. With these two issues fixed in SimplifyDemandedBits I was able to remove that computeKnownBits call and still pass all X86 tests. I'll submit that change in a separate patch.

Reviewers: RKSimon, spatel

Reviewed By: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31715

llvm-svn: 299839

7 years ago[InstCombine] Make sure we preserve fast math flags when folding fp instructions...
Craig Topper [Mon, 10 Apr 2017 07:00:10 +0000 (07:00 +0000)]
[InstCombine] Make sure we preserve fast math flags when folding fp instructions into phi nodes

Summary: I noticed in the select folding code that we copied fast math flags, but did not do the same for the similar handling in phi nodes. This patch fixes that to do the same thing as select

Reviewers: spatel, davide, majnemer, hfinkel

Reviewed By: davide

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31690

llvm-svn: 299838

7 years ago[InstCombine] use m_c_And and m_c_Xor to handle commuted versions of a transform.
Craig Topper [Mon, 10 Apr 2017 06:53:28 +0000 (06:53 +0000)]
[InstCombine] use m_c_And and m_c_Xor to handle commuted versions of a transform.

llvm-svn: 299837

7 years ago[InstCombine] Add test cases demonstrating missing handling for the commuted version...
Craig Topper [Mon, 10 Apr 2017 06:53:25 +0000 (06:53 +0000)]
[InstCombine] Add test cases demonstrating missing handling for the commuted version of a transform. NFC.

llvm-svn: 299836

7 years ago[InstCombine] Remove unnecessary dyn_cast to BinaryOperator around some matcher check...
Craig Topper [Mon, 10 Apr 2017 06:53:23 +0000 (06:53 +0000)]
[InstCombine] Remove unnecessary dyn_cast to BinaryOperator around some matcher checks in visitXor.

The matchers themselves should be enough.

llvm-svn: 299835

7 years ago[InstCombine] Make the (A|B)^B -> A & ~B transform code consistent with the very...
Craig Topper [Mon, 10 Apr 2017 06:53:21 +0000 (06:53 +0000)]
[InstCombine] Make the (A|B)^B -> A & ~B transform code consistent with the very similar (A&B)^B -> ~A & B code. This should be NFC except for the addition of hasOneUse check.

I think this code is still overly complicated and should use matchers, but first I wanted to make it consistent.

llvm-svn: 299834

7 years ago[InstCombine] Use m_OneUse to shorten some code. NFC
Craig Topper [Mon, 10 Apr 2017 06:53:19 +0000 (06:53 +0000)]
[InstCombine] Use m_OneUse to shorten some code. NFC

llvm-svn: 299833

7 years agoRemove unused method.
Zachary Turner [Mon, 10 Apr 2017 06:30:28 +0000 (06:30 +0000)]
Remove unused method.

This is causing build breaks, but it's unused anyway, so delete
it.

llvm-svn: 299832

7 years agoGeneral usability improvements to generic PDB library.
Zachary Turner [Mon, 10 Apr 2017 06:14:09 +0000 (06:14 +0000)]
General usability improvements to generic PDB library.

1. Added some asserts to make sure concrete symbol types don't
   get constructed with RawSymbols that have an incompatible
   SymTag enum value.
2. Added new forwarding macros that auto-define an Id/Sym method
   pair whenever there is a method that returns a SymIndexId.
   Previously we would just provide one method that returned only
   the SymIndexId and it was up to the caller to use the Session
   object to get a pointer to the symbol.  Now we automatically
   get both the method that returns the Id, as well as a method
   that returns the pointer directly with just one macro.
3. Added some methods for dumping straight to stdout that can
   be used from inside the debugger for diagnostics during a
   debug session.
4. Added a clone() method and a cast<T>() method to PDBSymbol
   that can shorten some usage patterns.

llvm-svn: 299831

7 years ago[SCCP] Resolve indirect branch target when possible.
Xin Tong [Mon, 10 Apr 2017 00:33:25 +0000 (00:33 +0000)]
[SCCP] Resolve indirect branch target when possible.

Summary:
Resolve indirect branch target when possible.
This potentially eliminates more basicblocks and result in better evaluation for phi and other things.

Reviewers: davide, efriedma, sanjoy

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D30322

llvm-svn: 299830

7 years ago[InstCombine] remove dead cases from icmp pair switches; NFCI
Sanjay Patel [Sun, 9 Apr 2017 21:51:34 +0000 (21:51 +0000)]
[InstCombine] remove dead cases from icmp pair switches; NFCI

"PredicatesFoldable" returns false for signed/unsigned mismatched pairs,
so these cases should never exist. We'll default to 'unreachable' on those
predicate combos instead.

Most of what's left in these switches belongs in InstSimplify (and may
already be there), so there's probably more that can be done to reduce
this code.

llvm-svn: 299829

7 years ago[InstCombine] remove duplicate test; NFC
Sanjay Patel [Sun, 9 Apr 2017 21:45:52 +0000 (21:45 +0000)]
[InstCombine] remove duplicate test; NFC

I moved this test to 'not.ll' in r299824 but accidentally added a copy here.

llvm-svn: 299828

7 years ago[Mem2Reg] Remove AliasSetTracker updating logic from the pass.
Davide Italiano [Sun, 9 Apr 2017 20:47:14 +0000 (20:47 +0000)]
[Mem2Reg] Remove AliasSetTracker updating logic from the pass.

No caller has been passing it for a long time.

llvm-svn: 299827

7 years ago[SimplifyCFG] auto-generate better checks; NFC
Sanjay Patel [Sun, 9 Apr 2017 16:16:32 +0000 (16:16 +0000)]
[SimplifyCFG] auto-generate better checks; NFC

llvm-svn: 299825

7 years ago[InstCombine] auto-generate better checks; NFC
Sanjay Patel [Sun, 9 Apr 2017 15:44:59 +0000 (15:44 +0000)]
[InstCombine] auto-generate better checks; NFC

Also, move a test next to its sibling to eliminate a file with just one test.

llvm-svn: 299824

7 years ago[MemorySSA] Fix use of pointsToConstantMemory in isUseTriviallyOptimizableToLiveOnEntry
Hal Finkel [Sun, 9 Apr 2017 12:57:50 +0000 (12:57 +0000)]
[MemorySSA] Fix use of pointsToConstantMemory in isUseTriviallyOptimizableToLiveOnEntry

In isUseTriviallyOptimizableToLiveOnEntry, pointsToConstantMemory needs to be
called on the load's pointer operand, not on the result of the load (which
might not even be a pointer).

llvm-svn: 299823

7 years ago[InstCombine] Extend some OR combines to support vectors.
Craig Topper [Sun, 9 Apr 2017 06:12:41 +0000 (06:12 +0000)]
[InstCombine] Extend some OR combines to support vectors.

This adds support for these combines for vectors
(X^C)|Y -> (X|Y)^C iff Y&C == 0
Y|(X^C) -> (X|Y)^C iff Y&C == 0

llvm-svn: 299822

7 years ago[InstCombine] Extend a canonicalization check to apply to vector constants too.
Craig Topper [Sun, 9 Apr 2017 06:12:39 +0000 (06:12 +0000)]
[InstCombine] Extend a canonicalization check to apply to vector constants too.

llvm-svn: 299821

7 years ago[InstCombine] Add test cases to show missing support for vectors in an OR combine...
Craig Topper [Sun, 9 Apr 2017 06:12:36 +0000 (06:12 +0000)]
[InstCombine] Add test cases to show missing support for vectors in an OR combine. Also add the commuted versions. NFC

llvm-svn: 299820

7 years ago[InstCombine] Use the SubOne helper function to shorten some code. NFC
Craig Topper [Sun, 9 Apr 2017 06:12:34 +0000 (06:12 +0000)]
[InstCombine] Use the SubOne helper function to shorten some code. NFC

llvm-svn: 299819

7 years ago[InstCombine] rename variable for easier reading; NFC
Craig Topper [Sun, 9 Apr 2017 06:12:31 +0000 (06:12 +0000)]
[InstCombine] rename variable for easier reading; NFC

We usually give constants a 'C' somewhere in the name...

llvm-svn: 299818

7 years agoMC: Remove unused virtual function MCObjectWriter::isWeak. NFC.
Peter Collingbourne [Sat, 8 Apr 2017 23:35:49 +0000 (23:35 +0000)]
MC: Remove unused virtual function MCObjectWriter::isWeak. NFC.

llvm-svn: 299817

7 years agoAMDGPU: Actually write nops for writeNopData
Matt Arsenault [Sat, 8 Apr 2017 21:28:38 +0000 (21:28 +0000)]
AMDGPU: Actually write nops for writeNopData

Before this was just writing 0s, which ends up looking like a
v_cndmask_b32 v0, s0, v0, vcc. Write out an encoded s_nop instead.

llvm-svn: 299816

7 years ago[AsmParser]Emit an error if a macro has two (or more) parameters sharing the same...
Coby Tayree [Sat, 8 Apr 2017 20:29:03 +0000 (20:29 +0000)]
[AsmParser]Emit an error if a macro has two (or more) parameters sharing the same name

Introducing a new error to macro parameters' parsing:
currently, llvm-mc won't complain if a macro have two (or more) named params with the same name.
this behavior is false, as there's no merit in having some params sharing a name.
now, instead of tolerate such a phenomena - emit an appropriate error.

Differential Revision: https://reviews.llvm.org/D31674

llvm-svn: 299815

7 years agoReorganize libLTO C API header lto.h (NFC)
Mehdi Amini [Sat, 8 Apr 2017 19:20:30 +0000 (19:20 +0000)]
Reorganize libLTO C API header lto.h (NFC)

This just makes it easier to follow the Doxygen blocks

llvm-svn: 299814

7 years ago[cmake] Support Gentoo install for z3
Michal Gorny [Sat, 8 Apr 2017 14:38:06 +0000 (14:38 +0000)]
[cmake] Support Gentoo install for z3

Add the 'z3' subdirectory to the list of possible path suffixes for
libz3 header search. The z3 headers are installed in /usr/include/z3
on Gentoo.

Differential Revision: https://reviews.llvm.org/D31756

llvm-svn: 299813

7 years ago[ELF] - Stop producing broken output for R_386_GOT32[X] relocations.
George Rimar [Sat, 8 Apr 2017 06:14:14 +0000 (06:14 +0000)]
[ELF] - Stop producing broken output for R_386_GOT32[X] relocations.

Previously we silently produced broken output for R_386_GOT32X/R_386_GOT32
relocations if they were used to compute the address of the symbol’s global
offset table entry without base register when position-independent code is disabled.

Situation happened because of recent ABI changes. Released ABI mentions that
R_386_GOT32X can be calculated in a two different ways (so we did not follow ABI here
before this patch), but draft ABI also mentions R_386_GOT32 relocation here.
We should use the same calculations for both relocations.

Problem is that we always calculated them as G + A - GOT (offset from end of GOT),
but for case when PIC is disabled, according to i386 ABI calculation should be G + A,
what should produce just an address in GOT finally.

ABI: https://github.com/hjl-tools/x86-psABI/wiki/intel386-psABI-draft.pdf (p36, p60).
llvm-svn: 299812

7 years ago[IR] Inline Type::getScalarType() by using isVectorTy() and getVectorElementType...
Craig Topper [Sat, 8 Apr 2017 05:47:09 +0000 (05:47 +0000)]
[IR] Inline Type::getScalarType() by using isVectorTy() and getVectorElementType() that were already available inline.

Seems to have very little compiled code size impact. But might give a tiny performance boost.

llvm-svn: 299811

7 years ago[AArch64] Refine Falkor Machine Model - Part 3
Balaram Makam [Sat, 8 Apr 2017 03:30:15 +0000 (03:30 +0000)]
[AArch64] Refine Falkor Machine Model - Part 3

  This concludes the refinements to Falkor Machine Model.
  It includes SchedPredicates for immediate zero and LSL Fast.
  Forwarding logic is also modeled for vector multiply and
  accumulate only.

llvm-svn: 299810

7 years ago[coroutines] Make CoroSplit pass deterministic
Gor Nishanov [Sat, 8 Apr 2017 00:49:46 +0000 (00:49 +0000)]
[coroutines] Make CoroSplit pass deterministic

coro-split-after-phi.ll test was flaky due to non-determinism in
the coroutine frame construction that was sorting the spill
vector using a pointer to a def as a part of the key.

The sorting was intended to make sure that spills for the same def
are kept together, however, we populate the vector by processing
defs in order, so the spill entires will end up together anyways.

This change removes spill sorting and restores the determinism
in the test.

llvm-svn: 299809

7 years agogitignore: Ignore .vs folder (VS2017 config files)
Gor Nishanov [Sat, 8 Apr 2017 00:16:58 +0000 (00:16 +0000)]
gitignore: Ignore .vs folder (VS2017 config files)

llvm-svn: 299808

7 years agoMark this test as XFAIL on all platforms, it's happening everywhere.
Jason Molenda [Fri, 7 Apr 2017 23:20:22 +0000 (23:20 +0000)]
Mark this test as XFAIL on all platforms, it's happening everywhere.
llvm.org/pr32553 and <rdar://problem/30646077> are tracking this.

llvm-svn: 299807

7 years ago[cfi] Emit __cfi_check stub in the frontend.
Evgeniy Stepanov [Fri, 7 Apr 2017 23:00:38 +0000 (23:00 +0000)]
[cfi] Emit __cfi_check stub in the frontend.

Previously __cfi_check was created in LTO optimization pipeline, which
means LLD has no way of knowing about the existence of this symbol
without rescanning the LTO output object. As a result, LLD fails to
export __cfi_check, even when given --export-dynamic-symbol flag.

llvm-svn: 299806

7 years ago[cfi] Take over existing __cfi_check in CrossDSOCFI.
Evgeniy Stepanov [Fri, 7 Apr 2017 23:00:20 +0000 (23:00 +0000)]
[cfi] Take over existing __cfi_check in CrossDSOCFI.

https://reviews.llvm.org/D31796 will emit a dummy __cfi_check in the
frontend.

llvm-svn: 299805

7 years ago[cfi] Accept weak definition of __cfi_check.
Evgeniy Stepanov [Fri, 7 Apr 2017 22:52:08 +0000 (22:52 +0000)]
[cfi] Accept weak definition of __cfi_check.

https://reviews.llvm.org/D31796 results in LLD emitting __cfi_check
as a weak symbol, while Gold keeps it strong. Accept both.

llvm-svn: 299804

7 years ago[ARM] Prefer BIC over BFC in ARM mode.
Eli Friedman [Fri, 7 Apr 2017 22:01:23 +0000 (22:01 +0000)]
[ARM] Prefer BIC over BFC in ARM mode.

BIC is generally faster, and it can put the output in a different
register from the input.

We already do this in Thumb2 mode; not sure why the equivalent fix
never got applied to ARM mode.

Differential Revision: https://reviews.llvm.org/D31797

llvm-svn: 299803

7 years ago[GlobalISel]: Fix bug where we can report GISelFailure on erased instructions
Aditya Nandakumar [Fri, 7 Apr 2017 21:49:30 +0000 (21:49 +0000)]
[GlobalISel]: Fix bug where we can report GISelFailure on erased instructions

The original instruction might get legalized and erased and expanded
into intermediate instructions and the intermediate instructions might
fail legalization. This end up in reporting GISelFailure on the erased
instruction.
Instead report GISelFailure on the intermediate instruction which failed
legalization.

Reviewed by: ab

llvm-svn: 299802

7 years ago[ConstantFolding] Use Intrinsic::not_intrinsic instead of 0 for readability. NFCI
Craig Topper [Fri, 7 Apr 2017 21:36:32 +0000 (21:36 +0000)]
[ConstantFolding] Use Intrinsic::not_intrinsic instead of 0 for readability. NFCI

llvm-svn: 299801

7 years agoToolchains: remove crtbegin on xwindows
Saleem Abdulrasool [Fri, 7 Apr 2017 20:47:06 +0000 (20:47 +0000)]
Toolchains: remove crtbegin on xwindows

crtbegin is not really a proper windows support thing.  This was
duplicated when the toolchain was initially built.  If the injection of
crtbegin is needed, it can be done via the `/include` directive.
Furthermore, since `-fPIC` doesnt make sense on PE/COFF, crtbegin and
crtbeginS dont really need to be different.

llvm-svn: 299800

7 years ago[AArch64] Allow global register asm("x18") or asm("w18") under -ffixed-x18
Petr Hosek [Fri, 7 Apr 2017 20:41:58 +0000 (20:41 +0000)]
[AArch64] Allow global register asm("x18") or asm("w18") under -ffixed-x18

When using -ffixed-x18, the x18 (or w18) register can safely be used
with the "global register variable" GCC extension, but the backend
fails to recognize it.

Patch by Roland McGrath.

Differential Revision: https://reviews.llvm.org/D31793

llvm-svn: 299799

7 years agoRevert "[CMake][libunwind] Use -nodefaultlibs for CMake checks"
Petr Hosek [Fri, 7 Apr 2017 20:24:22 +0000 (20:24 +0000)]
Revert "[CMake][libunwind] Use -nodefaultlibs for CMake checks"

This reverts commit r299796.

llvm-svn: 299798

7 years ago[CMake][libcxxabi] Use -nodefaultlibs for CMake checks
Petr Hosek [Fri, 7 Apr 2017 20:10:41 +0000 (20:10 +0000)]
[CMake][libcxxabi] Use -nodefaultlibs for CMake checks

Since libc++abi is built with -nodefaultlibs, we should be using this
option even for CMake checks to avoid any inconsistency and also to
avoid dependency on a working C++ standard library just for the setting
up the build itself. The implementation is largely similar to the one
used by libc++.

Differential Revision: https://reviews.llvm.org/D31639

llvm-svn: 299797

7 years ago[CMake][libunwind] Use -nodefaultlibs for CMake checks
Petr Hosek [Fri, 7 Apr 2017 20:10:29 +0000 (20:10 +0000)]
[CMake][libunwind] Use -nodefaultlibs for CMake checks

Since libunwind is built with -nodefaultlibs, we should be using this
option even for CMake checks to avoid any inconsistency and also to
avoid dependency on a working C++ standard library just for the setting
up the build itself. The implementation is largely similar to the one
used by libc++.

Differential Revision: https://reviews.llvm.org/D31640

llvm-svn: 299796

7 years agoRemove .rdata section size checks from pdb.test, they are not the same on Windows...
Reid Kleckner [Fri, 7 Apr 2017 19:58:33 +0000 (19:58 +0000)]
Remove .rdata section size checks from pdb.test, they are not the same on Windows and Unix

llvm-svn: 299795