platform/upstream/llvm.git
8 years ago[FIX] Prevent division/modulo by zero in parameters
Johannes Doerfert [Fri, 29 Apr 2016 10:36:58 +0000 (10:36 +0000)]
[FIX] Prevent division/modulo by zero in parameters

  When we materialize parameter SCEVs we did so without considering the
  side effects they might have, e.g., both division and modulo are
  undefined if the right hand side is zero. This is a problem because we
  potentially extended the domain under which we evaluate parameters,
  thus we might have introduced such undefined behaviour. To prevent
  that from happening we will now guard divisions and modulo operations
  in the parameters with a compare and select.

llvm-svn: 268023

8 years agoMake run-find-all-symbols executable.
Benjamin Kramer [Fri, 29 Apr 2016 10:33:11 +0000 (10:33 +0000)]
Make run-find-all-symbols executable.

llvm-svn: 268022

8 years ago[find-all-symbols] Fix racy yaml file writing.
Benjamin Kramer [Fri, 29 Apr 2016 10:16:28 +0000 (10:16 +0000)]
[find-all-symbols] Fix racy yaml file writing.

If multiple find-all-symbols processes access the temporary directory
simultaneously with two files with the same name they would collide and
create a broken yaml file. Fix this by using the safe createUniqueFile
API from LLVM instead.

Differential Revision: http://reviews.llvm.org/D19717

llvm-svn: 268021

8 years ago[OPENMP] Fix detection of explicit data-sharing attributes in templates.
Alexey Bataev [Fri, 29 Apr 2016 09:56:11 +0000 (09:56 +0000)]
[OPENMP] Fix detection of explicit data-sharing attributes in templates.

Fixes a bug with analysis of data-sharing attributes in templates.

llvm-svn: 268020

8 years ago[find-all-symbols] Save absolute file path instead of relative file path in SymbolInfo.
Haojian Wu [Fri, 29 Apr 2016 09:45:09 +0000 (09:45 +0000)]
[find-all-symbols] Save absolute file path instead of relative file path in SymbolInfo.

Reviewers: bkramer

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19647

llvm-svn: 268019

8 years agoImplementation of VlA of GNU C++ extension, by Vladimir Yakovlev.
Alexey Bataev [Fri, 29 Apr 2016 09:39:50 +0000 (09:39 +0000)]
Implementation of VlA of GNU C++ extension, by Vladimir Yakovlev.

This enables GNU C++ extension "Variable length array" by default.
Differential Revision: http://reviews.llvm.org/D18823

llvm-svn: 268018

8 years ago[include-fixer] Add Yaml database integration.
Haojian Wu [Fri, 29 Apr 2016 09:23:38 +0000 (09:23 +0000)]
[include-fixer] Add Yaml database integration.

Reviewers: bkramer

Subscribers: cfe-commits, klimek, djasper

Differential Revision: http://reviews.llvm.org/D19648

llvm-svn: 268017

8 years ago[InstCombine][SSE] Added x86 pshufb undef mask tests
Simon Pilgrim [Fri, 29 Apr 2016 09:13:53 +0000 (09:13 +0000)]
[InstCombine][SSE] Added x86 pshufb undef mask tests

FIXME: We currently don't support folding constant pshufb shuffle masks containing undef elements.
llvm-svn: 268016

8 years agoAMDGPU/SI: Assembler: Unify parsing/printing of operands.
Nikolay Haustov [Fri, 29 Apr 2016 09:02:30 +0000 (09:02 +0000)]
AMDGPU/SI: Assembler: Unify parsing/printing of operands.

Summary:
The goal is for each operand type to have its own parse function and
at the same time share common code for tracking state as different
instruction types share operand types (e.g. glc/glc_flat, etc).

Introduce parseAMDGPUOperand which can parse any optional operand.
DPP and Clamp/OMod have custom handling for now. Sam also suggested
to have class hierarchy for operand types instead of table. This
can be done in separate change.

Remove parseVOP3OptionalOps, parseDS*OptionalOps, parseFlatOptionalOps,
parseMubufOptionalOps, parseDPPOptionalOps.
Reduce number of definitions of AsmOperand's and MatchClasses' by using common base class.
Rename AsmMatcher/InstPrinter methods accordingly.
Print immediate type when printing parsed immediate operand.
Use 'off' if offset/index register is unused instead of skipping it to make it more readable (also agreed with SP3).
Update tests.

Reviewers: tstellarAMD, SamWot, artem.tamazov

Subscribers: qcolombet, arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D19584

llvm-svn: 268015

8 years ago[InstCombine][SSE] Regenerated x86 pshufb tests
Simon Pilgrim [Fri, 29 Apr 2016 08:53:35 +0000 (08:53 +0000)]
[InstCombine][SSE] Regenerated x86 pshufb tests

llvm-svn: 268014

8 years ago[Clang][AVX512][Builtin] Adding intrinsics for compress instruction set
Michael Zuckerman [Fri, 29 Apr 2016 08:52:02 +0000 (08:52 +0000)]
[Clang][AVX512][Builtin] Adding intrinsics for compress instruction set

Differential Revision: http://reviews.llvm.org/D19599

llvm-svn: 268013

8 years ago[mips][microMIPS] Fix offsets for LLE, LWE, SBE, SCE and SHE instructions
Zlatko Buljan [Fri, 29 Apr 2016 08:36:54 +0000 (08:36 +0000)]
[mips][microMIPS] Fix offsets for LLE, LWE, SBE, SCE and SHE instructions
Differential Revision: http://reviews.llvm.org/D18645

llvm-svn: 268012

8 years ago[GlobalOpt] Propagate operand bundles
David Majnemer [Fri, 29 Apr 2016 08:07:22 +0000 (08:07 +0000)]
[GlobalOpt] Propagate operand bundles

We neglected to transfer operand bundles for some transforms.  These
were found via inspection, I'll try to come up with some test cases.

llvm-svn: 268011

8 years ago[InstCombine] Propagate operand bundles
David Majnemer [Fri, 29 Apr 2016 08:07:20 +0000 (08:07 +0000)]
[InstCombine] Propagate operand bundles

We neglected to transfer operand bundles for some transforms.  These
were found via inspection, I'll try to come up with some test cases.

llvm-svn: 268010

8 years agoFix PR21428 for long. Buffer was one byte too small in octal formatting case. Rename...
Eric Fiselier [Fri, 29 Apr 2016 07:23:20 +0000 (07:23 +0000)]
Fix PR21428 for long. Buffer was one byte too small in octal formatting case. Rename previously added test

llvm-svn: 268009

8 years ago[DeadArgumentElimination] Propagate operand bundles to promoted call sites
David Majnemer [Fri, 29 Apr 2016 07:22:36 +0000 (07:22 +0000)]
[DeadArgumentElimination] Propagate operand bundles to promoted call sites

We neglected to transfer operand bundles when performing argument
promotion.

llvm-svn: 268008

8 years ago[LoopDist] Add missing RUN line in test from r268006
Adam Nemet [Fri, 29 Apr 2016 07:16:00 +0000 (07:16 +0000)]
[LoopDist] Add missing RUN line in test from r268006

llvm-svn: 268007

8 years ago[LoopDist] Also emit optimization remark on success (-Rpass=)
Adam Nemet [Fri, 29 Apr 2016 07:10:46 +0000 (07:10 +0000)]
[LoopDist] Also emit optimization remark on success (-Rpass=)

The option -Rpass=loop-distribute now reports the loops that were
distributed.

llvm-svn: 268006

8 years ago[LoopDist] Pass 'Function' to main class. NFC
Adam Nemet [Fri, 29 Apr 2016 07:10:39 +0000 (07:10 +0000)]
[LoopDist] Pass 'Function' to main class. NFC

Next patch will add another use for 'Function' inside the class.

llvm-svn: 268005

8 years ago[SLPVectorizer] Add operand bundles to vectorized functions
David Majnemer [Fri, 29 Apr 2016 07:09:51 +0000 (07:09 +0000)]
[SLPVectorizer] Add operand bundles to vectorized functions

SLPVectorizing a call site should result in further propagation of its
bundles.

llvm-svn: 268004

8 years ago[LoopVectorize] Add operand bundles to vectorized functions
David Majnemer [Fri, 29 Apr 2016 07:09:48 +0000 (07:09 +0000)]
[LoopVectorize] Add operand bundles to vectorized functions

Also, do not crash when calculating a cost model for loop-invariant
token values.

llvm-svn: 268003

8 years agoAMDGPU: Stop reporting an addressing mode for unknown addrspace
Matt Arsenault [Fri, 29 Apr 2016 06:25:10 +0000 (06:25 +0000)]
AMDGPU: Stop reporting an addressing mode for unknown addrspace

This was being treated the same as private, which has an immediate
offset. For unknown, it probably means it's for a computation not
actually being used for accessing memory, so it should not have a
nontrivial addressing mode.

llvm-svn: 268002

8 years agoDivergenceAnalysis: Fix crash with unreachable blocks
Matt Arsenault [Fri, 29 Apr 2016 06:17:47 +0000 (06:17 +0000)]
DivergenceAnalysis: Fix crash with unreachable blocks

Unreachable blocks may not be in the dominator tree,
so don't crash on them.

llvm-svn: 268001

8 years ago[ArgumentPromotion] Propagate operand bundles to promoted call sites
David Majnemer [Fri, 29 Apr 2016 04:56:12 +0000 (04:56 +0000)]
[ArgumentPromotion] Propagate operand bundles to promoted call sites

We neglected to transfer operand bundles when performing argument
promotion.

This fixes PR27568.

llvm-svn: 267986

8 years ago[X86] Remove unnecessary header file containing a small class. It was only included...
Craig Topper [Fri, 29 Apr 2016 04:22:28 +0000 (04:22 +0000)]
[X86] Remove unnecessary header file containing a small class. It was only included in one place. Just define the class directly in the cpp file. NFC

llvm-svn: 267985

8 years ago[X86] Include X86MCTargetDesc.h directly in X86Disassembler.cpp instead of duplicatin...
Craig Topper [Fri, 29 Apr 2016 04:22:26 +0000 (04:22 +0000)]
[X86] Include X86MCTargetDesc.h directly in X86Disassembler.cpp instead of duplicating parts of it. NFC

llvm-svn: 267984

8 years agoMove extern C include test into test/libcxx
Eric Fiselier [Fri, 29 Apr 2016 04:19:48 +0000 (04:19 +0000)]
Move extern C include test into test/libcxx

llvm-svn: 267983

8 years agoFix test failures by adding missing include
Eric Fiselier [Fri, 29 Apr 2016 04:18:13 +0000 (04:18 +0000)]
Fix test failures by adding missing include

llvm-svn: 267982

8 years agoFix or move various non-standard tests.
Eric Fiselier [Fri, 29 Apr 2016 04:07:45 +0000 (04:07 +0000)]
Fix or move various non-standard tests.

This patch does the following:

* Remove <__config> includes from some container tests.
* Guards uses of std::launch::any in async tests because it's an extension.
* Move "test/std/extensions" to "test/libcxx/extensions"
* Moves various non-standard tests including those in "sequences/vector",
  "std/localization" and "utilities/meta".

llvm-svn: 267981

8 years ago[PR25281] Remove AAResultsWrapper from preserved analyses of loop vectorizer.
Michael Zolotukhin [Fri, 29 Apr 2016 03:31:25 +0000 (03:31 +0000)]
[PR25281] Remove AAResultsWrapper from preserved analyses of loop vectorizer.

We don't preserve AAResults, because, for one, we don't preserve SCEV-AA.
That fixes PR25281.

llvm-svn: 267980

8 years agoDo not produce broken debug info.
Rui Ueyama [Fri, 29 Apr 2016 03:21:08 +0000 (03:21 +0000)]
Do not produce broken debug info.

r267917 produces corrupted debug info because it didn't apply
relocations to right offsets.

llvm-svn: 267979

8 years agoRemove stale documentation on -no-aa
Sanjoy Das [Fri, 29 Apr 2016 03:01:49 +0000 (03:01 +0000)]
Remove stale documentation on -no-aa

The pass itself was removed in rL247167.

llvm-svn: 267978

8 years agoRegisterPressure: Fix default lanemask for missing regunit intervals
Matthias Braun [Fri, 29 Apr 2016 02:44:54 +0000 (02:44 +0000)]
RegisterPressure: Fix default lanemask for missing regunit intervals

In case of missing live intervals for a physical registers
getLanesWithProperty() would report 0 which was not a safe default in
all situations. Add a parameter to pass in a safe default.
No testcase because in-tree targets do not skip computing register unit
live intervals.

Also cleanup the getXXX() functions to not perform the
RequireLiveIntervals checks anymore so we do not even need to return
safe defaults.

llvm-svn: 267977

8 years agoRegisterPressure: Cannot produce dead (subregister) defs anymore
Matthias Braun [Fri, 29 Apr 2016 02:44:48 +0000 (02:44 +0000)]
RegisterPressure: Cannot produce dead (subregister) defs anymore

With the DetectDeadLanes pass in place we cannot run into situations
anymore where defs suddenly become dead.
Also add a missing check so we do not try to add an undef flag to a
physreg (found by visual inspection, no failing test).

llvm-svn: 267976

8 years ago[Parser] Clear the TemplateParamScope bit of the current scope's flag
Akira Hatanaka [Fri, 29 Apr 2016 02:24:14 +0000 (02:24 +0000)]
[Parser] Clear the TemplateParamScope bit of the current scope's flag
if we are parsing a template specialization.

This commit makes changes to clear the TemplateParamScope bit and set
the TemplateParamParent field of the current scope to null if a template
specialization is being parsed.

Before this commit, Sema::ActOnStartOfLambdaDefinition would check
whether the parent template scope had any decls to determine whether
or not a template specialization was being parsed. This wasn't correct
since it couldn't distinguish between a real template specialization and
a template defintion with an unnamed template parameter (only template
parameters with names are added to the scope's decl list). To fix the
bug, this commit changes the code to check the pointer to the parent
template scope rather than the decl list.

rdar://problem/23440346

Differential Revision: http://reviews.llvm.org/D19175

llvm-svn: 267975

8 years agoFix build by casting to the proper int type.
Ivan Krasin [Fri, 29 Apr 2016 02:09:57 +0000 (02:09 +0000)]
Fix build by casting to the proper int type.

Reviewers: eugenis

Differential Revision: http://reviews.llvm.org/D19706

llvm-svn: 267974

8 years agoMove INVOKE tests into test/libcxx sub-tree.
Eric Fiselier [Fri, 29 Apr 2016 01:52:57 +0000 (01:52 +0000)]
Move INVOKE tests into test/libcxx sub-tree.

Testing the concrete implementation of INVOKE means calling the implementation
specific names `__invoke` and `__invoke_constexpr`. For this reason the test
are non-standard. For this reason it's best if the tests live outside of the
`test/std` directory.

llvm-svn: 267973

8 years ago[OPENMP] Enable correct generation of runtime call when target directive is separated...
Carlo Bertolli [Fri, 29 Apr 2016 01:37:30 +0000 (01:37 +0000)]
[OPENMP] Enable correct generation of runtime call when target directive is separated from teams directive by multiple curly brackets

http://reviews.llvm.org/D18474

This patch fixes a bug in code generation of the correct OpenMP runtime library call in presence of target and teams, when target is separated by teams with multiple curly brackets. The current implementation will not be able to see the teams directive inside target and issue a call to tgt_target instead of the correct one tgt_target_teams.

llvm-svn: 267972

8 years ago[llvm-cov] Don't emit 'nan%' in reports
Vedant Kumar [Fri, 29 Apr 2016 01:31:49 +0000 (01:31 +0000)]
[llvm-cov] Don't emit 'nan%' in reports

llvm-svn: 267971

8 years ago[LoopVectorize] Keep hints from original loop on the vector loop
Hal Finkel [Fri, 29 Apr 2016 01:27:40 +0000 (01:27 +0000)]
[LoopVectorize] Keep hints from original loop on the vector loop

We need to keep loop hints from the original loop on the new vector loop.
Failure to do this meant that, for example:

  void foo(int *b) {
  #pragma clang loop unroll(disable)
    for (int i = 0; i < 16; ++i)
      b[i] = 1;
  }

this loop would be unrolled. Why? Because we'd vectorize it, thus dropping the
hints that unrolling should be disabled, and then we'd unroll it.

llvm-svn: 267970

8 years agoPR27549: fix bug that resulted in us giving a translation-unit-scope variable a
Richard Smith [Fri, 29 Apr 2016 01:23:20 +0000 (01:23 +0000)]
PR27549: fix bug that resulted in us giving a translation-unit-scope variable a
mangled name if it happened to be declared in an 'extern "C++"' context. This
also causes us to use the '_ZL' mangling rather than the '_Z' mangling for
internal-linkage entities that are wrapped in a language linkage construct.

llvm-svn: 267969

8 years agoFix possible test breakage for MinGW
Eric Fiselier [Fri, 29 Apr 2016 01:22:16 +0000 (01:22 +0000)]
Fix possible test breakage for MinGW

llvm-svn: 267968

8 years ago[msan] Tests for vector compare intrinsics.
Evgeniy Stepanov [Fri, 29 Apr 2016 01:20:05 +0000 (01:20 +0000)]
[msan] Tests for vector compare intrinsics.

llvm-svn: 267967

8 years ago[msan] Handle vector compare x86 intrinsics.
Evgeniy Stepanov [Fri, 29 Apr 2016 01:19:52 +0000 (01:19 +0000)]
[msan] Handle vector compare x86 intrinsics.

This handles SSE and SSE2 cmp_* and comiXX_* intrinsics.

llvm-svn: 267966

8 years ago[llvm-pdbdump] Try to appease the ASan bot
David Majnemer [Fri, 29 Apr 2016 01:00:17 +0000 (01:00 +0000)]
[llvm-pdbdump] Try to appease the ASan bot

We didn't check that the file was large enough to hold a super block.

llvm-svn: 267965

8 years ago[X86] Use nested switches to vary the operand to helper functions that were previousl...
Craig Topper [Fri, 29 Apr 2016 00:51:30 +0000 (00:51 +0000)]
[X86] Use nested switches to vary the operand to helper functions that were previously called in multiple cases. This seems to help the inliner reduce code. NFC

llvm-svn: 267964

8 years agoFix get_temp_file_name() to compile on Windows. Patch from STL@microsoft.com
Eric Fiselier [Fri, 29 Apr 2016 00:51:24 +0000 (00:51 +0000)]
Fix get_temp_file_name() to compile on Windows. Patch from STL@microsoft.com

llvm-svn: 267963

8 years agoRemove more names of unreferenced parameters. Patch from STL@microsoft.com
Eric Fiselier [Fri, 29 Apr 2016 00:47:16 +0000 (00:47 +0000)]
Remove more names of unreferenced parameters. Patch from STL@microsoft.com

llvm-svn: 267962

8 years agoAdd a return value for nasty_mutex::operator&. Patch from STL@microsoft.com
Eric Fiselier [Fri, 29 Apr 2016 00:45:46 +0000 (00:45 +0000)]
Add a return value for nasty_mutex::operator&. Patch from STL@microsoft.com

llvm-svn: 267961

8 years ago[ASan] [SystemZ] Mark segv_read_write.c as UNSUPPORTED.
Marcin Koscielnicki [Fri, 29 Apr 2016 00:43:20 +0000 (00:43 +0000)]
[ASan] [SystemZ] Mark segv_read_write.c as UNSUPPORTED.

On s390*-linux, sigcontext just doesn't contain any information that could
be used to recover the type of access, so there's no way to fix this, short
of emulating the faulting instruction.

Differential Revision: http://reviews.llvm.org/D19655

llvm-svn: 267960

8 years agoAdd <string> include for streaming operators. Patch from STL@microsoft.com
Eric Fiselier [Fri, 29 Apr 2016 00:39:40 +0000 (00:39 +0000)]
Add <string> include for streaming operators. Patch from STL@microsoft.com

llvm-svn: 267959

8 years agoAdd proper include for unique_ptr. Patch from STL@microsoft.com
Eric Fiselier [Fri, 29 Apr 2016 00:37:56 +0000 (00:37 +0000)]
Add proper include for unique_ptr. Patch from STL@microsoft.com

llvm-svn: 267958

8 years agoAvoid -Wshadow warnings about constructor parameters named after fields
Reid Kleckner [Fri, 29 Apr 2016 00:37:43 +0000 (00:37 +0000)]
Avoid -Wshadow warnings about constructor parameters named after fields

Usually these parameters are used solely to initialize the field in the
initializer list, and there is no real shadowing confusion.

There is a new warning under -Wshadow called
-Wshadow-field-in-constructor-modified. It attempts to find
modifications of such constructor parameters that probably intended to
modify the field.

It has some false negatives, though, so there is another warning group,
-Wshadow-field-in-constructor, which always warns on this special case.
For users who just want the old behavior and don't care about these fine
grained groups, we have a new warning group called -Wshadow-all that
activates everything.

Fixes PR16088.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D18271

llvm-svn: 267957

8 years ago[Sema] Fix a crash that occurs when a variable template is initialized
Akira Hatanaka [Thu, 28 Apr 2016 23:50:12 +0000 (23:50 +0000)]
[Sema] Fix a crash that occurs when a variable template is initialized
with a generic lambda.

This patch fixes Sema::InstantiateVariableInitializer to switch to the
context of the variable before instantiating its initializer, which is
necessary to set the correct type for VarTemplateSpecializationDecl.

This is the first part of the patch that was reviewed here:
http://reviews.llvm.org/D19175

rdar://problem/23440346

llvm-svn: 267956

8 years ago[llvm-pdbdump] Restore error messages, handle bad block sizes
David Majnemer [Thu, 28 Apr 2016 23:47:27 +0000 (23:47 +0000)]
[llvm-pdbdump] Restore error messages, handle bad block sizes

We lost the ability to report errors, bring it back.  Also, correctly
validate the block size.

llvm-svn: 267955

8 years agoLiveIntervalAnalysis: Remove LiveVariables requirement
Matthias Braun [Thu, 28 Apr 2016 23:42:51 +0000 (23:42 +0000)]
LiveIntervalAnalysis: Remove LiveVariables requirement

This requirement was a huge hack to keep LiveVariables alive because it
was optionally used by TwoAddressInstructionPass and PHIElimination.
However we have AnalysisUsage::addUsedIfAvailable() which we can use in
those passes.

This re-applies r260806 with LiveVariables manually added to PowerPC to
hopefully not break the stage 2 bots this time.

llvm-svn: 267954

8 years ago[llvm-pdbdump] Correctly read data larger than a block
David Majnemer [Thu, 28 Apr 2016 23:24:23 +0000 (23:24 +0000)]
[llvm-pdbdump] Correctly read data larger than a block

A bug was introduced when the code was refactored which resulted in a
bad memory access.

This fixes PR27565.

llvm-svn: 267953

8 years ago[LoopDist] Emit optimization remarks (-Rpass*)
Adam Nemet [Thu, 28 Apr 2016 23:08:32 +0000 (23:08 +0000)]
[LoopDist] Emit optimization remarks (-Rpass*)

I closely followed the precedents set by the vectorizer:

* With -Rpass-missed, the loop is reported with further details pointing
to -Rpass--analysis.

* -Rpass-analysis reports the details why distribution has failed.

* Regardless of -Rpass*, when distribution fails for a loop where
distribution was forced with the pragma, a warning is produced according
to -Wpass-failed.  In this case the analysis info is also printed even
without -Rpass-analysis.

llvm-svn: 267952

8 years ago[LoopDist] Improve debug messages
Adam Nemet [Thu, 28 Apr 2016 23:08:30 +0000 (23:08 +0000)]
[LoopDist] Improve debug messages

The next patch will start using these for -Rpass-analysis so they won't
be internal-only anymore.

Move the 'Skipping; ' prefix that some of the message are using into the
'fail' function.  We don't want to include this prefix in
the -Rpass-analysis report.

llvm-svn: 267951

8 years ago[LoopDist] Add helper to print debug message when distribution fails. NFC
Adam Nemet [Thu, 28 Apr 2016 23:08:27 +0000 (23:08 +0000)]
[LoopDist] Add helper to print debug message when distribution fails.  NFC

This will form the basis to emit optimization remarks (-Rpass*).

llvm-svn: 267950

8 years ago[Inliner] Preserve llvm.mem.parallel_loop_access metadata
Hal Finkel [Thu, 28 Apr 2016 23:00:04 +0000 (23:00 +0000)]
[Inliner] Preserve llvm.mem.parallel_loop_access metadata

When inlining a call site with llvm.mem.parallel_loop_access metadata, this
metadata needs to be propagated to all cloned memory-accessing instructions.
Otherwise, inlining parts of the loop body will invalidate the annotation.

With this functionality, we now vectorize the following as expected:

  void Body(int *res, int *c, int *d, int *p, int i) {
    res[i] = (p[i] == 0) ? res[i] : res[i] + d[i];
  }

  void Test(int *res, int *c, int *d, int *p, int n) {
    int i;

  #pragma clang loop vectorize(assume_safety)
    for (i = 0; i < 1600; i++) {
      Body(res, c, d, p, i);
    }
  }

llvm-svn: 267949

8 years agoDifferential Revision: http://reviews.llvm.org/D19687
Sriraman Tallam [Thu, 28 Apr 2016 22:34:00 +0000 (22:34 +0000)]
Differential Revision: reviews.llvm.org/D19687

Set module flag PIELevel. Simplify code that sets PICLevel flag.

llvm-svn: 267948

8 years agoGuard libc++ specific c.__invariants() tests in LIBCPP_ASSERT macros
Eric Fiselier [Thu, 28 Apr 2016 22:28:23 +0000 (22:28 +0000)]
Guard libc++ specific c.__invariants() tests in LIBCPP_ASSERT macros

llvm-svn: 267947

8 years ago[ASan] Reenable __builtin_setjmp test on PowerPC, disable on SystemZ.
Marcin Koscielnicki [Thu, 28 Apr 2016 22:23:19 +0000 (22:23 +0000)]
[ASan] Reenable __builtin_setjmp test on PowerPC, disable on SystemZ.

Since __builtin_setjmp has been fixed by rL267943, the test now works
on PowerPC.  Enable it.

On the other hand, the SystemZ backend doesn't currently support
__builtin_setjmp.  Disable it.

Differential Revision: http://reviews.llvm.org/D19657

llvm-svn: 267946

8 years agoRead discriminators correctly from object file.
Dehao Chen [Thu, 28 Apr 2016 22:09:37 +0000 (22:09 +0000)]
Read discriminators correctly from object file.

Summary:
This is the follow-up patch for http://reviews.llvm.org/D19436
* Update the discriminator reading algorithm to match the assignment algorithm.
* Add test to cover the new algorithm.

Reviewers: dnovillo, echristo, dblaikie

Subscribers: danielcdh, dblaikie, echristo, llvm-commits, joker.eph

Differential Revision: http://reviews.llvm.org/D19522

llvm-svn: 267945

8 years ago[CodeGen] Remove extra ';'
Marcin Koscielnicki [Thu, 28 Apr 2016 21:49:46 +0000 (21:49 +0000)]
[CodeGen] Remove extra ';'

Squashes a -Wpedantic warning.

llvm-svn: 267944

8 years ago[PowerPC] Fix the EH_SjLj_Setup pseudo.
Marcin Koscielnicki [Thu, 28 Apr 2016 21:24:37 +0000 (21:24 +0000)]
[PowerPC] Fix the EH_SjLj_Setup pseudo.

This instruction is just a control flow marker - it should not
actually exist in the object file.  Unfortunately, nothing catches
it before it gets to AsmPrinter.  If integrated assembler is used,
it's considered to be a normal 4-byte instruction, and emitted as
an all-0 word, crashing the program.  With external assembler,
a comment is emitted.

Fixed by setting Size to 0 and handling it in MCCodeEmitter - this
means the comment will still be emitted if integrated assembler
is not used.

This broke an ASan test, which has been disabled for a long time
as a result (see the discussion on D19657).  We can reenable it
once this lands.

llvm-svn: 267943

8 years ago[clang][AVX512][Builtin] Adding intrinsics for the SAD instruction set.
Michael Zuckerman [Thu, 28 Apr 2016 21:21:08 +0000 (21:21 +0000)]
[clang][AVX512][Builtin] Adding intrinsics for the SAD instruction set.

Differential Revision: http://reviews.llvm.org/D19591

llvm-svn: 267942

8 years ago[CMake] Adding another missing include. NFC.
Chris Bieneman [Thu, 28 Apr 2016 21:16:45 +0000 (21:16 +0000)]
[CMake] Adding another missing include. NFC.

This also works fine today, but will break with my upcoming refactoring.

llvm-svn: 267941

8 years agoFix a bug in llvm-objdump for -private-headers printing the LC_CODE_SIGNATURE Mach...
Kevin Enderby [Thu, 28 Apr 2016 21:07:20 +0000 (21:07 +0000)]
Fix a bug in llvm-objdump for -private-headers printing the LC_CODE_SIGNATURE Mach-O load command.

rdar://25985653

llvm-svn: 267940

8 years ago[RDF] Recognize tail calls in graph creation
Krzysztof Parzyszek [Thu, 28 Apr 2016 20:40:08 +0000 (20:40 +0000)]
[RDF] Recognize tail calls in graph creation

llvm-svn: 267939

8 years agoFix warning in PDB code. NFC
Amaury Sechet [Thu, 28 Apr 2016 20:39:39 +0000 (20:39 +0000)]
Fix warning in PDB code. NFC

llvm-svn: 267938

8 years agoLiveIntervalAnalysis: No need to deal with dead subregister defs anymore.
Matthias Braun [Thu, 28 Apr 2016 20:35:26 +0000 (20:35 +0000)]
LiveIntervalAnalysis: No need to deal with dead subregister defs anymore.

The DetectDeadLaneMask already ensures that we have no dead subregister
definitions making the special handling in LiveIntervalAnalysis
unnecessary. This reverts most of r248335.

llvm-svn: 267937

8 years ago[RDF] Improve handling of inline-asm
Krzysztof Parzyszek [Thu, 28 Apr 2016 20:33:33 +0000 (20:33 +0000)]
[RDF] Improve handling of inline-asm

- Keep implicit defs from inline-asm instructions.
- Treat register references from inline-asm as fixed.

llvm-svn: 267936

8 years agoDelete dead variable.
Rafael Espindola [Thu, 28 Apr 2016 20:29:12 +0000 (20:29 +0000)]
Delete dead variable.

llvm-svn: 267935

8 years agoAdd parentheses to silence -Wparentheses warnings.
Zachary Turner [Thu, 28 Apr 2016 20:26:30 +0000 (20:26 +0000)]
Add parentheses to silence -Wparentheses warnings.

llvm-svn: 267934

8 years ago[clang-tidy] cppcoreguidelines-pro-type-member-init should not complain about static...
Alexander Kornienko [Thu, 28 Apr 2016 20:20:01 +0000 (20:20 +0000)]
[clang-tidy] cppcoreguidelines-pro-type-member-init should not complain about static variables

Summary:
Variables with static storage duration are zero-initialized per
[stmt.dcl]p4 and [basic.start.init]p2.

Reviewers: sbenza, aaron.ballman

Subscribers: michael_miller, flx, cfe-commits

Differential Revision: http://reviews.llvm.org/D19672

llvm-svn: 267933

8 years ago[RDF] Add option to keep dead phi nodes in DFG
Krzysztof Parzyszek [Thu, 28 Apr 2016 20:17:06 +0000 (20:17 +0000)]
[RDF] Add option to keep dead phi nodes in DFG

Dead phi nodes are needed for code motion (such as copy propagation),
where a new use would be placed in a location that would be dominated
by a dead phi. Such a transformation is not legal for copy propagation,
and the existence of the phi would prevent it, but if the phi is not
there, it may appear to be valid.

llvm-svn: 267932

8 years agoUsed llvm_unreached to quite a VC++ compiler warning.
Adrian McCarthy [Thu, 28 Apr 2016 20:14:44 +0000 (20:14 +0000)]
Used llvm_unreached to quite a VC++ compiler warning.

Differential Revision: http://reviews.llvm.org/D19489

llvm-svn: 267931

8 years ago[CMake] [Darwin] Use libtool instead of ar && ranlib
Chris Bieneman [Thu, 28 Apr 2016 20:14:19 +0000 (20:14 +0000)]
[CMake] [Darwin] Use libtool instead of ar && ranlib

Summary: Using libtool instead of ar and ranlib on Darwin shaves a minute off my clang build. This is because on Darwin libtool is optimized to give hints to the kernel about filesystem interactions that allow it to be faster.

Reviewers: bogner, pete

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D19611

llvm-svn: 267930

8 years agoUpdate llvm-objdump for disassembly of ARM Mach-O files to always include the opcode...
Kevin Enderby [Thu, 28 Apr 2016 20:14:13 +0000 (20:14 +0000)]
Update llvm-objdump for disassembly of ARM Mach-O files to always include the opcode bytes.

As this is the expected behavior of the old darwin otool(1) for ARM Mach-O files.

rdar://25896249

llvm-svn: 267929

8 years agoRead the rest of the DBI substreams, and parse source info.
Zachary Turner [Thu, 28 Apr 2016 20:05:18 +0000 (20:05 +0000)]
Read the rest of the DBI substreams, and parse source info.

We now read out the rest of the substreams from the DBI streams.  One of
these substreams, the FileInfo substream, contains information about which
source files contribute to each module (aka compiland).  This patch
additionally parses out the file information from that substream, and
dumps it in llvm-pdbdump.

Differential Revision: http://reviews.llvm.org/D19634
Reviewed by: ruiu

llvm-svn: 267928

8 years agoThis reverts commit r265505.
Kit Barton [Thu, 28 Apr 2016 20:00:42 +0000 (20:00 +0000)]
This reverts commit r265505.

Revert "[Power9] Implement add-pc, multiply-add, modulo, extend-sign-shift, random number, set bool, and dfp test significance".
This patch has caused a functional regression in SPEC2k6 namd, and a performance regression in mesa-pipe.

llvm-svn: 267927

8 years agoOne more fix for use of invalid PresumedLocs missed by r267914.
Richard Smith [Thu, 28 Apr 2016 19:54:51 +0000 (19:54 +0000)]
One more fix for use of invalid PresumedLocs missed by r267914.

llvm-svn: 267926

8 years ago[Hexagon] Add instruction aliases for vector unsigned compare-equal
Krzysztof Parzyszek [Thu, 28 Apr 2016 19:49:18 +0000 (19:49 +0000)]
[Hexagon] Add instruction aliases for vector unsigned compare-equal

Unsigned compare-equal instructions are mapped to signed compare-equal.

llvm-svn: 267925

8 years ago[analyzer] Add path note for localizability checker.
Devin Coughlin [Thu, 28 Apr 2016 19:44:40 +0000 (19:44 +0000)]
[analyzer] Add path note for localizability checker.

Add a path note indicating the location of the non-localized string
literal in NonLocalizedStringChecker.

rdar://problem/25981525

llvm-svn: 267924

8 years agoXFail TestBitfields.py Python API tests.
Chaoren Lin [Thu, 28 Apr 2016 19:40:19 +0000 (19:40 +0000)]
XFail TestBitfields.py Python API tests.

Summary:
Started failing after rL267895.
Possibly related to http://llvm.org/pr27510.

Reviewers: labath, tfiala

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D19680

llvm-svn: 267923

8 years agoAMDGPU: Emit error if too much LDS is used
Matt Arsenault [Thu, 28 Apr 2016 19:37:35 +0000 (19:37 +0000)]
AMDGPU: Emit error if too much LDS is used

llvm-svn: 267922

8 years agoUse a single context for lto.
Rafael Espindola [Thu, 28 Apr 2016 19:30:41 +0000 (19:30 +0000)]
Use a single context for lto.

Using multiple context used to be a really big memory saving because we
could free memory from each file while the linker proceeded with the
symbol resolution. We are getting lazier about reading data from the
bitcode, so I was curious if this was still a good tradeoff.

One thing that is a bit annoying is that we still have to copy the
symbol names. The problem is that the names are stored in the Module and
get freed when we move the module bits during linking.

Long term I think the solution is to add a symbol table to the bitcode.
That way IRObject file will not need to use a Module or a Context and we
can drop it while still keeping a StringRef to the names.

This patch is still be an interesting medium term improvement.

When linking llvm-as without debug info this patch is a small speedup:

master: 29.861877513 seconds
patch: 29.814533787 seconds

With debug info the numbers are

master: 34.765181469 seconds
patch: 34.563351584 seconds

The peak memory usage when linking llvm-as with debug info was

master: 599.10MB
patch: 600.13MB
llvm-svn: 267921

8 years agoRemove doInitialization() and doFinalization() member declarations without definitions.
Yaron Keren [Thu, 28 Apr 2016 19:21:30 +0000 (19:21 +0000)]
Remove doInitialization() and doFinalization() member declarations without definitions.
Visual C++ 2015 flags this in the IDE.

llvm-svn: 267919

8 years agoReset the TopRPTracker's position in ScheduleDAGMILive::initQueues
Krzysztof Parzyszek [Thu, 28 Apr 2016 19:17:44 +0000 (19:17 +0000)]
Reset the TopRPTracker's position in ScheduleDAGMILive::initQueues

ScheduleDAGMI::initQueues changes the RegionBegin to the first non-debug
instruction. Since it does not track register pressure, it does not affect
any RP trackers. ScheduleDAGMILive inherits initQueues from ScheduleDAGMI,
and it does reset the TopTPTracker in its schedule method. Any derived,
target-specific scheduler will need to do it as well, but the TopRPTracker
is only exposed as a "const" object to derived classes. Without the ability
to modify the tracker directly, this leaves a derived scheduler with a
potential of having the TopRPTracker out-of-sync with the CurrentTop.

The symptom of the problem:
  void llvm::ScheduleDAGMILive::scheduleMI(llvm::SUnit *, bool):
  Assertion `TopRPTracker.getPos() == CurrentTop && "out of sync"' failed.

Differential Revision: http://reviews.llvm.org/D19438

llvm-svn: 267918

8 years agoSkip scanRelocs for non-alloc sections.
Rui Ueyama [Thu, 28 Apr 2016 18:42:04 +0000 (18:42 +0000)]
Skip scanRelocs for non-alloc sections.

Relocations against sections with no SHF_ALLOC bit are R_ABS relocations.
Currently we are creating Relocations vector for them, but that is wasteful.
This patch is to skip vector construction and to directly apply relocations
in place.

This patch seems to be pretty effective for large executables with debug info.
r266158 (Rafael's patch to change the way how we apply relocations) caused a
temporary performance degradation for such executables, but this patch makes
it even faster than before.

Time to link clang with debug info (output size is 1070 MB):

  before r266158: 15.312 seconds (0%)
  r266158:        17.301 seconds (+13.0%)
  Head:           16.484 seconds (+7.7%)
  w/patch:        13.166 seconds (-14.0%)

Differential Revision: http://reviews.llvm.org/D19645

llvm-svn: 267917

8 years agoAMDGPU: Fix mishandling array allocations when promoting alloca
Matt Arsenault [Thu, 28 Apr 2016 18:38:48 +0000 (18:38 +0000)]
AMDGPU: Fix mishandling array allocations when promoting alloca

The canonical form for allocas is a single allocation of the array type.
In case we see a non-canonical array alloca, make sure we aren't
replacing this with an array N times smaller.

llvm-svn: 267916

8 years agoFix builds broken in r267910.
Eugene Zelenko [Thu, 28 Apr 2016 18:27:35 +0000 (18:27 +0000)]
Fix builds broken in r267910.

llvm-svn: 267915

8 years agoFix use of uninitialized value exposed by r267802. Accessors of an invalid
Richard Smith [Thu, 28 Apr 2016 18:26:32 +0000 (18:26 +0000)]
Fix use of uninitialized value exposed by r267802. Accessors of an invalid
PresumedLoc should not be called.

llvm-svn: 267914

8 years ago[CMake] Updating Apple CMake cache file
Chris Bieneman [Thu, 28 Apr 2016 18:24:29 +0000 (18:24 +0000)]
[CMake] Updating Apple CMake cache file

Changing the Apple CMake cache file to better match the way Apple Clang builds are built.

llvm-svn: 267913

8 years ago[CMake] Adding some missing CMake includes. NFC.
Chris Bieneman [Thu, 28 Apr 2016 18:22:01 +0000 (18:22 +0000)]
[CMake] Adding some missing CMake includes. NFC.

This happens to be working now because the includes exist in another CMake file that is included before this one. That will change with upcoming refactoring.

llvm-svn: 267912

8 years agoAdd "PIE Level" metadata to module flags.
Sriraman Tallam [Thu, 28 Apr 2016 18:15:44 +0000 (18:15 +0000)]
Add "PIE Level" metadata to module flags.

http://reviews.llvm.org/D19671

llvm-svn: 267911

8 years agoFix some Clang-tidy modernize and Include What You Use warnings.
Eugene Zelenko [Thu, 28 Apr 2016 18:04:41 +0000 (18:04 +0000)]
Fix some Clang-tidy modernize and Include What You Use warnings.

Differential revision: http://reviews.llvm.org/D19673

llvm-svn: 267910

8 years agoMake the test exercise all paths modified in r267746.
Paul Robinson [Thu, 28 Apr 2016 17:52:28 +0000 (17:52 +0000)]
Make the test exercise all paths modified in r267746.

llvm-svn: 267909