platform/upstream/llvm.git
7 years ago[modules] When creating a declaration, cache its owning module immediately
Richard Smith [Fri, 12 May 2017 23:27:00 +0000 (23:27 +0000)]
[modules] When creating a declaration, cache its owning module immediately
rather than waiting until it's queried.

Currently this is only applied to local submodule visibility mode, as we don't
yet allocate storage for the owning module in non-local-visibility modules
compilations.

llvm-svn: 302965

7 years ago[GISel]: Add a getConstantFPVRegVal utility
Aditya Nandakumar [Fri, 12 May 2017 22:54:52 +0000 (22:54 +0000)]
[GISel]: Add a getConstantFPVRegVal utility

This might be useful across various GISel Passes

https://reviews.llvm.org/D33051

llvm-svn: 302964

7 years ago[GISel]: Fix undefined behavior while accessing DefaultAction map
Aditya Nandakumar [Fri, 12 May 2017 22:43:58 +0000 (22:43 +0000)]
[GISel]: Fix undefined behavior while accessing DefaultAction map

We end up dereferencing the end iterator here when the Aspect doesn't exist in the DefaultAction map.
Change the API to return Optional<LLT> and return None when not found.
Also update the callers to handle the None case

llvm-svn: 302963

7 years ago[XRay] Fix build with libc++ (NFC).
Eugene Zelenko [Fri, 12 May 2017 22:26:42 +0000 (22:26 +0000)]
[XRay] Fix build with libc++ (NFC).

llvm-svn: 302962

7 years ago[IR] Fix some Clang-tidy modernize-use-using warnings; other minor fixes (NFC).
Eugene Zelenko [Fri, 12 May 2017 22:25:07 +0000 (22:25 +0000)]
[IR] Fix some Clang-tidy modernize-use-using warnings; other minor fixes (NFC).

llvm-svn: 302961

7 years ago[TLI] Add mapping for various '__<func>_finite' forms of the math routines to SVML...
Andrew Kaylor [Fri, 12 May 2017 22:11:26 +0000 (22:11 +0000)]
[TLI] Add mapping for various '__<func>_finite' forms of the math routines to SVML routines

Patch by Chris Chrulski

Differential Revision: https://reviews.llvm.org/D31789

llvm-svn: 302957

7 years ago[ConstantFolding] Add folding for various math '__<func>_finite' routines generated...
Andrew Kaylor [Fri, 12 May 2017 22:11:20 +0000 (22:11 +0000)]
[ConstantFolding] Add folding for various math '__<func>_finite' routines generated from -ffast-math

Patch by Chris Chrulski

Differential Revision: https://reviews.llvm.org/D31788

llvm-svn: 302956

7 years ago[TLI] Add declarations for various math header file routines from math-finite.h that...
Andrew Kaylor [Fri, 12 May 2017 22:11:12 +0000 (22:11 +0000)]
[TLI] Add declarations for various math header file routines from math-finite.h that create '__<func>_finite as functions

Patch by Chris Chrulski

Differential Revision: https://reviews.llvm.org/D31787

llvm-svn: 302955

7 years agoFixed the OS X build after Error -> Status rename.
Sean Callanan [Fri, 12 May 2017 21:53:44 +0000 (21:53 +0000)]
Fixed the OS X build after Error -> Status rename.

llvm-svn: 302954

7 years ago[APInt] Add early outs for a division by 1 to udiv/urem/udivrem
Craig Topper [Fri, 12 May 2017 21:45:50 +0000 (21:45 +0000)]
[APInt] Add early outs for a division by 1 to udiv/urem/udivrem

We already counted the number of bits in the RHS so its pretty cheap to just check if the RHS is 1.

Differential Revision: https://reviews.llvm.org/D33154

llvm-svn: 302953

7 years ago[APInt] In udivrem, remember the bit width in a local variable so we don't reread...
Craig Topper [Fri, 12 May 2017 21:45:44 +0000 (21:45 +0000)]
[APInt] In udivrem, remember the bit width in a local variable so we don't reread it from the LHS which might be aliased with Quotient or Remainder.

This helped the compiler generate better code for the single word case. It was able to remember that the bit width was still a single word when it created the Remainder APInt and not create code for it possibly being multiword.

llvm-svn: 302952

7 years agoLTO: Don't verify modules twice in verifyMergedModuleOnce
Adrian Prantl [Fri, 12 May 2017 21:38:32 +0000 (21:38 +0000)]
LTO: Don't verify modules twice in verifyMergedModuleOnce

Differential Revision: https://reviews.llvm.org/D33140

llvm-svn: 302951

7 years ago[Doc] Document "Splat" in the lexicon
Sanjay Patel [Fri, 12 May 2017 21:30:31 +0000 (21:30 +0000)]
[Doc] Document "Splat" in the lexicon

Patch by Wei-Ren Chen (陳韋任)!

Differential Revision: https://reviews.llvm.org/D32964

llvm-svn: 302950

7 years ago[x86] add vector tests for demanded bits; NFC
Sanjay Patel [Fri, 12 May 2017 20:53:48 +0000 (20:53 +0000)]
[x86] add vector tests for demanded bits; NFC

llvm-svn: 302949

7 years agoFix build on Mac OS.
Eugene Zemtsov [Fri, 12 May 2017 20:44:09 +0000 (20:44 +0000)]
Fix build on Mac OS.

llvm-svn: 302948

7 years agoRevert r302932, as it appears to be breaking stage2 for some of our modules-enabled...
Richard Smith [Fri, 12 May 2017 20:42:54 +0000 (20:42 +0000)]
Revert r302932, as it appears to be breaking stage2 for some of our modules-enabled buildbots.

llvm-svn: 302947

7 years ago[test] Add specific test for P0138R2, direct-list-init of fixed enums from integers...
Casey Carter [Fri, 12 May 2017 20:33:46 +0000 (20:33 +0000)]
[test] Add specific test for P0138R2, direct-list-init of fixed enums from integers, part 3/3.

Test the C++17 Core Language feature independently from other std::byte tests.

llvm-svn: 302946

7 years ago[test] Avoid P0138R2, direct-list-init of fixed enums from integers, part 2/3.
Casey Carter [Fri, 12 May 2017 20:33:41 +0000 (20:33 +0000)]
[test] Avoid P0138R2, direct-list-init of fixed enums from integers, part 2/3.

This C++17 Core Language feature isn't necessary when testing std::byte.
It's a minor convenience, but it limits test coverage to very new compilers.

This part activates the tests for more compilers.

llvm-svn: 302945

7 years ago[test] Avoid P0138R2, direct-list-init of fixed enums from integers, part 1/3.
Casey Carter [Fri, 12 May 2017 20:33:32 +0000 (20:33 +0000)]
[test] Avoid P0138R2, direct-list-init of fixed enums from integers, part 1/3.

This C++17 Core Language feature isn't necessary when testing std::byte.
It's a minor convenience, but it limits test coverage to very new compilers.

This part changes the code.

Fixes D32386.

llvm-svn: 302944

7 years agoAMDGPU/SI: Don't promote to vector if the load/store is volatile.
Changpeng Fang [Fri, 12 May 2017 20:31:12 +0000 (20:31 +0000)]
AMDGPU/SI: Don't promote to vector if the load/store is volatile.

Summary:
  We should not change volatile loads/stores in promoting alloca to vector.

Reviewers:
  arsenm

Differential Revision:
  http://reviews.llvm.org/D33107

llvm-svn: 302943

7 years ago[NVPTX] Don't flag StoreRetVal memory chain operands as ReadMem (PR32146)
Simon Pilgrim [Fri, 12 May 2017 19:56:43 +0000 (19:56 +0000)]
[NVPTX] Don't flag StoreRetVal memory chain operands as ReadMem (PR32146)

This fixes 47 of the 75 NVPTX '-verify-machineinstrs with EXPENSIVE_CHECKS' errors in PR32146.

Differential Revision: https://reviews.llvm.org/D33147

llvm-svn: 302942

7 years ago[Sema] Silence buildbot failures introduced by r302935
Simon Dardis [Fri, 12 May 2017 19:55:32 +0000 (19:55 +0000)]
[Sema] Silence buildbot failures introduced by r302935

Attempt to silence buildbot failures by pinning the test to a given
triple rather than the host's triple.

llvm-svn: 302941

7 years agoRemove ignore-empty-index-file option
Teresa Johnson [Fri, 12 May 2017 19:32:17 +0000 (19:32 +0000)]
Remove ignore-empty-index-file option

Summary:
Clang changes to remove this option and replace with a parameter
always set in the context of a ThinLTO distributed backend.

Depends on D33133.

Reviewers: pcc

Subscribers: mehdi_amini, eraman, cfe-commits

Differential Revision: https://reviews.llvm.org/D33134

llvm-svn: 302940

7 years agoRemove ignore-empty-index-file option
Teresa Johnson [Fri, 12 May 2017 19:32:11 +0000 (19:32 +0000)]
Remove ignore-empty-index-file option

Summary:
As discussed in the D32195 review thread and on IRC, remove this option
and replace with parameter, which will be set to true when invoked
from clang in the context of a ThinLTO distributed backend.

Reviewers: pcc

Subscribers: mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D33133

llvm-svn: 302939

7 years agoAdd LiveRangeShrink pass to shrink live range within BB.
Dehao Chen [Fri, 12 May 2017 19:29:27 +0000 (19:29 +0000)]
Add LiveRangeShrink pass to shrink live range within BB.

Summary: LiveRangeShrink pass moves instruction right after the definition with the same BB if the instruction and its operands all have more than one use. This pass is inexpensive and guarantees optimal live-range within BB.

Reviewers: davidxl, wmi, hfinkel, MatzeB, andreadb

Reviewed By: MatzeB, andreadb

Subscribers: hiraditya, jyknight, sanjoy, skatkov, gberry, jholewinski, qcolombet, javed.absar, krytarowski, atrick, spatel, RKSimon, andreadb, MatzeB, mehdi_amini, mgorny, efriedma, davide, dberlin, llvm-commits

Differential Revision: https://reviews.llvm.org/D32563

llvm-svn: 302938

7 years ago[PPC] Move the combine "a << (b % (sizeof(a) * 8)) -> (PPCshl a, b)" to the backend...
Tim Shen [Fri, 12 May 2017 19:25:37 +0000 (19:25 +0000)]
[PPC] Move the combine "a << (b % (sizeof(a) * 8)) -> (PPCshl a, b)" to the backend. NFC.

Summary:
Eli pointed out that it's unsafe to combine the shifts to ISD::SHL etc.,
because those are not defined for b > sizeof(a) * 8, even after some of
the combiners run.

However, PPCISD::SHL defines that behavior (as the instructions themselves).
Move the combination to the backend.

The tests in shift_mask.ll still pass.

Reviewers: echristo, hfinkel, efriedma, iteratee

Subscribers: nemanjai, llvm-commits

Differential Revision: https://reviews.llvm.org/D33076

llvm-svn: 302937

7 years ago[CodeView] Add a random access type visitor.
Zachary Turner [Fri, 12 May 2017 19:18:12 +0000 (19:18 +0000)]
[CodeView] Add a random access type visitor.

This adds a visitor that is capable of accessing type
records randomly and caching intermediate results that it
learns about during partial linear scans.  This yields
amortized O(1) access to a type stream even though type
streams cannot normally be indexed.

Differential Revision: https://reviews.llvm.org/D33009

llvm-svn: 302936

7 years ago[Sema] Support implicit scalar to vector conversions
Simon Dardis [Fri, 12 May 2017 19:11:06 +0000 (19:11 +0000)]
[Sema] Support implicit scalar to vector conversions

This patch teaches clang to perform implicit scalar to vector conversions
when one of the operands of a binary vector expression is a scalar which
can be converted to the element type of the vector without truncation
following GCC's implementation.

If the (constant) scalar is can be casted safely, it is implicitly casted to the
vector elements type and splatted to produce a vector of the same type.

Contributions from: Petar Jovanovic

Reviewers: bruno, vkalintiris

Differential Revision: https://reviews.llvm.org/D25866

llvm-svn: 302935

7 years ago[include-fixer] Don't throw exception when parsing unknown arguments in
Haojian Wu [Fri, 12 May 2017 19:01:02 +0000 (19:01 +0000)]
[include-fixer] Don't throw exception when parsing unknown arguments in
vim script.

llvm-svn: 302934

7 years ago[AArch64][Falkor] Refine modeling of multiply accumulate forwarding.
Geoff Berry [Fri, 12 May 2017 18:57:10 +0000 (18:57 +0000)]
[AArch64][Falkor] Refine modeling of multiply accumulate forwarding.

llvm-svn: 302933

7 years ago[modules] Simplify module macro handling in non-local-submodule-visibility mode.
Richard Smith [Fri, 12 May 2017 18:56:03 +0000 (18:56 +0000)]
[modules] Simplify module macro handling in non-local-submodule-visibility mode.

When reaching the end of a module, we used to convert its macros to
ModuleMacros but also leave them in the MacroDirective chain for the
identifier. This meant that every lookup of such a macro would find two
(identical) definitions. It also made it difficult to determine the correct
owner for a macro when reaching the end of a module: the most recent
MacroDirective in the chain could be from an #included submodule rather than
the current module.

Simplify this: whenever we convert a MacroDirective to a ModuleMacro when
leaving a module, clear out the MacroDirective chain for that identifier, and
just rely on the ModuleMacro to provide the macro definition information.

(We don't want to do this for local submodule visibility mode, because in that
mode we maintain a distinct MacroDirective chain for each submodule, and we
need to keep around the prior MacroDirective in case we re-enter the submodule
-- for instance, if its header is #included more than once in a module build,
we need the include guard directive to stick around. But the problem doesn't
arise in this case for the same reason: each submodule has its own
MacroDirective chain, so the macros don't leak out of submodules in the first
place.)

llvm-svn: 302932

7 years ago[APInt] Add an assert to check for divide by zero in udivrem. NFC
Craig Topper [Fri, 12 May 2017 18:19:01 +0000 (18:19 +0000)]
[APInt] Add an assert to check for divide by zero in udivrem. NFC

udiv and urem already had the same assert.

llvm-svn: 302931

7 years ago[APInt] Remove unnecessary checks of rhsWords==1 with lhsWords==1 from udiv and udivr...
Craig Topper [Fri, 12 May 2017 18:18:57 +0000 (18:18 +0000)]
[APInt] Remove unnecessary checks of rhsWords==1 with lhsWords==1 from udiv and udivrem. NFC

At this point in the code rhsWords is guaranteed to be non-zero and less than or equal to lhsWords. So if lhsWords is 1, rhsWords must also be 1. urem alread had the check removed so this makes all 3 consistent.

llvm-svn: 302930

7 years agoClang-format and whitespace cleanup of source code
Jonathan Peyton [Fri, 12 May 2017 18:01:32 +0000 (18:01 +0000)]
Clang-format and whitespace cleanup of source code

This patch contains the clang-format and cleanup of the entire code base. Some
of clang-formats changes made the code look worse in places. A best effort was
made to resolve the bulk of these problems, but many remain. Most of the
problems were mangling line-breaks and tabbing of comments.

Patch by Terry Wilmarth

Differential Revision: https://reviews.llvm.org/D32659

llvm-svn: 302929

7 years agoAMDGPU: Add lit.local.cfg to disable global-isel tests when global-isel is disabled
Tom Stellard [Fri, 12 May 2017 17:59:30 +0000 (17:59 +0000)]
AMDGPU: Add lit.local.cfg to disable global-isel tests when global-isel is disabled

This should fix bots broken by r302919.

llvm-svn: 302928

7 years agoStrip trailing whitespace. NFCI.
Simon Pilgrim [Fri, 12 May 2017 17:42:36 +0000 (17:42 +0000)]
Strip trailing whitespace. NFCI.

llvm-svn: 302927

7 years ago[Simplify] Reset all stats between runs.
Michael Kruse [Fri, 12 May 2017 17:23:07 +0000 (17:23 +0000)]
[Simplify] Reset all stats between runs.

llvm-svn: 302926

7 years ago[KnownBits] Add bit counting methods to KnownBits struct and use them where possible
Craig Topper [Fri, 12 May 2017 17:20:30 +0000 (17:20 +0000)]
[KnownBits] Add bit counting methods to KnownBits struct and use them where possible

This patch adds min/max population count, leading/trailing zero/one bit counting methods.

The min methods return answers based on bits that are known without considering unknown bits. The max methods give answers taking into account the largest count that unknown bits could give.

Differential Revision: https://reviews.llvm.org/D32931

llvm-svn: 302925

7 years ago[ubsan] Enable debug info in test binaries
Reid Kleckner [Fri, 12 May 2017 17:06:16 +0000 (17:06 +0000)]
[ubsan] Enable debug info in test binaries

This fixes tests that use debug info to check ubsan stack traces.  One
was XFAILd on Windows and the other was actively failing for weeks.

llvm-svn: 302924

7 years ago[codeview] Fix assertion failure introduced in r295354 refactoring
Reid Kleckner [Fri, 12 May 2017 17:02:40 +0000 (17:02 +0000)]
[codeview] Fix assertion failure introduced in r295354 refactoring

CodeViewDebug sets Asm to nullptr to disable debug info generation.  You
can get a .ll file like no-cus.ll from 'clang -gcodeview -g0', which
happens in the ubsan test suite.

llvm-svn: 302923

7 years agoMake sure we have actually written what is expected by the test.
Galina Kistanova [Fri, 12 May 2017 17:00:13 +0000 (17:00 +0000)]
Make sure we have actually written what is expected by the test.

llvm-svn: 302922

7 years ago[ELF] - Apply clang-format. NFC.
George Rimar [Fri, 12 May 2017 17:00:07 +0000 (17:00 +0000)]
[ELF] - Apply clang-format. NFC.

llvm-svn: 302921

7 years agoDisable two failing darwin lsan tests
Francis Ricci [Fri, 12 May 2017 16:52:19 +0000 (16:52 +0000)]
Disable two failing darwin lsan tests

These tests don't fail consistently in all cases, but they
fail most of the time on the buildbots. Mark as UNSUPPORTED for now to
avoid buildbots failing due to XPASS.

llvm-svn: 302920

7 years agoAMDGPU/GlobalISel: Mark 32-bit integer constants as legal
Tom Stellard [Fri, 12 May 2017 16:46:46 +0000 (16:46 +0000)]
AMDGPU/GlobalISel: Mark 32-bit integer constants as legal

Reviewers: arsenm

Reviewed By: arsenm

Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, rovka, kristof.beyls, igorb, dstuttard, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D33115

llvm-svn: 302919

7 years ago[index] Index template specialization arguments for function templats
Alex Lorenz [Fri, 12 May 2017 16:32:26 +0000 (16:32 +0000)]
[index] Index template specialization arguments for function templats

Also ensure that class template specialization arguments are covered

rdar://31812032

llvm-svn: 302918

7 years ago[asan/win] Re-enable Win64 asan tests on Win8+
Reid Kleckner [Fri, 12 May 2017 16:30:56 +0000 (16:30 +0000)]
[asan/win] Re-enable Win64 asan tests on Win8+

Our theory is that reserving large amounts of shadow memory isn't
reliable on Win7 and earlier NT kernels. This affects the
clang-x64-ninja-win7 buildbot, which uses Windows 7.

llvm-svn: 302917

7 years ago[APInt] Use MathExtras.h BitsToFloat/Double and Float/DoubleToBits instead of type...
Craig Topper [Fri, 12 May 2017 16:28:21 +0000 (16:28 +0000)]
[APInt] Use MathExtras.h BitsToFloat/Double and Float/DoubleToBits instead of type punning through a union

The functions in MathExtras.h uses a safer memcpy instead of going through a union.

Differential Revision: https://reviews.llvm.org/D33116

llvm-svn: 302916

7 years agoSimplify DINamespace caching in CGDebugInfo
Adrian Prantl [Fri, 12 May 2017 16:23:53 +0000 (16:23 +0000)]
Simplify DINamespace caching in CGDebugInfo

This addresses review feedback from r302840.

By not canonicalizing namespace decls and using lexical decl context
instead of lookuing up the semantic decl context we can take advantage
of the fact that DINamespaces a reuniqued. This way non-module debug
info is unchanged and module debug info still gets distinct namespace
declarations when they ocur in different modules.

Thanks to Richard Smith for pointing this out!

llvm-svn: 302915

7 years ago[SPARC] Support 'f' and 'e' inline asm constraints.
James Y Knight [Fri, 12 May 2017 16:01:23 +0000 (16:01 +0000)]
[SPARC] Support 'f' and 'e' inline asm constraints.

Patch by Patrick Boettcher.

Differential Revision: https://reviews.llvm.org/D29117

llvm-svn: 302913

7 years agoDisable two failing darwin lsan tests
Francis Ricci [Fri, 12 May 2017 16:01:15 +0000 (16:01 +0000)]
Disable two failing darwin lsan tests

These are causing buildbot failures, disable for now.

llvm-svn: 302912

7 years ago[SPARC] Support 'f' and 'e' inline asm constraints.
James Y Knight [Fri, 12 May 2017 15:59:10 +0000 (15:59 +0000)]
[SPARC] Support 'f' and 'e' inline asm constraints.

Based on patch by Patrick Boettcher and Chris Dewhurst.

Differential Revision: https://reviews.llvm.org/D29116

llvm-svn: 302911

7 years ago[x86] add tests for potential vector narrowing optimization (PR32790)
Sanjay Patel [Fri, 12 May 2017 15:56:39 +0000 (15:56 +0000)]
[x86] add tests for potential vector narrowing optimization (PR32790)

llvm-svn: 302910

7 years ago[LoopUnroll] Fix a test. REQUIRE should be REQUIRES.
Davide Italiano [Fri, 12 May 2017 15:30:58 +0000 (15:30 +0000)]
[LoopUnroll] Fix a test. REQUIRE should be REQUIRES.

Found by inspection.

llvm-svn: 302909

7 years ago[NewGVN] Improve debug output a bit. NFCI.
Davide Italiano [Fri, 12 May 2017 15:28:12 +0000 (15:28 +0000)]
[NewGVN] Improve debug output a bit. NFCI.

While debugging a predicate info problem, I noticed this was missing
a newline, making the debug output slightly less readable.

llvm-svn: 302908

7 years ago[DAGCombine] Use SelectionDAG::getAnyExtOrTrunc helper. NFCI.
Simon Pilgrim [Fri, 12 May 2017 15:26:50 +0000 (15:26 +0000)]
[DAGCombine] Use SelectionDAG::getAnyExtOrTrunc helper. NFCI.

llvm-svn: 302907

7 years ago[NewGVN] Format an assertion and fix a typo. NFCI.
Davide Italiano [Fri, 12 May 2017 15:25:56 +0000 (15:25 +0000)]
[NewGVN] Format an assertion and fix a typo. NFCI.

llvm-svn: 302906

7 years ago[NewGVN] Don't incorrectly reset the memory leader.
Davide Italiano [Fri, 12 May 2017 15:22:45 +0000 (15:22 +0000)]
[NewGVN] Don't incorrectly reset the memory leader.

This code was missing a check for stores, so we were thinking the
congruency class didn't have any memory members, and reset the
memory leader.

Differential Revision:  https://reviews.llvm.org/D33056

llvm-svn: 302905

7 years agoEnable lsan test suite on Darwin x86_64 builds
Francis Ricci [Fri, 12 May 2017 15:10:05 +0000 (15:10 +0000)]
Enable lsan test suite on Darwin x86_64 builds

Reviewers: kubamracek, alekseyshl

Subscribers: mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D32191

llvm-svn: 302904

7 years agoOptimize orphan placement in a general way.
Rafael Espindola [Fri, 12 May 2017 14:52:22 +0000 (14:52 +0000)]
Optimize orphan placement in a general way.

We used to place orphans by just using compareSectionsNonScript.

Then we noticed that since linker scripts can use another order, we
should first try match the section to a given PT_LOAD. But there is
nothing special about PT_LOAD. The same issue can show up for
PT_GNU_RELRO for example.

In general, we have to search for the most similar section and put the
orphan next to it. Most similar being defined as how long they follow
the same code path in compareSecitonsNonScript.

That is what this patch does. We now compute a rank for each output
section, with a bit for each branch in what was
compareSectionsNonScript.

With this findOrphanPos is now fully general and orphan placement can
be optimized by placing every section with the same rank at once.

The included testcase is a variation of many-sections.s that uses
allocatable sections to avoid the fast path in the existing
code. Without threads it goes form 46 seconds to 0.9 seconds.

llvm-svn: 302903

7 years ago[Polly][NewPM] Port ScopDetection to the new PassManager
Philip Pfaffe [Fri, 12 May 2017 14:37:29 +0000 (14:37 +0000)]
[Polly][NewPM] Port ScopDetection to the new PassManager

Summary: This is a proof of concept of how to port polly-passes to the new PassManager architecture.  This approach works ootb for Function-Passes, but might not be directly applicable to Scop/Region-Passes. While we could just run the Analyses/Transforms over functions instead, we'd surrender the nice pipelining behaviour we have now.

Reviewers: Meinersbur, grosser

Reviewed By: grosser

Subscribers: pollydev, sanjoy, nemanjai, llvm-commits

Tags: #polly

Differential Revision: https://reviews.llvm.org/D31459

llvm-svn: 302902

7 years agoEnabling the /bigobj flag for SemaDeclAttr.cpp.
Aaron Ballman [Fri, 12 May 2017 14:30:49 +0000 (14:30 +0000)]
Enabling the /bigobj flag for SemaDeclAttr.cpp.

This resolves compile errors with MSVC 2015 x64 debug builds where SemaDeclAttr.cpp is hitting the section symbol limit.

llvm-svn: 302901

7 years agoAdd dyld to sanitizer procmaps on darwin
Francis Ricci [Fri, 12 May 2017 14:10:53 +0000 (14:10 +0000)]
Add dyld to sanitizer procmaps on darwin

Summary:
Sanitizer procmaps uses dyld apis to iterate over the list of images
in the process. This is much more performan than manually recursing
over all of the memory regions in the process, however, dyld does
not report itself in the list of images. In order to prevent reporting
leaks from dyld globals and to symbolize dyld functions in stack traces,
this patch special-cases dyld and ensures that it is added to the
list of modules.

This is accomplished by recursing through the memory map of the process
until a dyld Mach header is found. While this recursion is expensive,
it is run before the full set of images has been loaded in the process,
so only a few calls are required. The result is cached so that it never
needs to be searched for when the full process memory map exists, as this
would be incredibly slow, on the order of minutes for leak sanitizer with
only 25 or so libraries loaded.

Reviewers: alekseyshl, kubamracek

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D32968

llvm-svn: 302899

7 years agoAccount for stack redzone when computing sp on darwin
Francis Ricci [Fri, 12 May 2017 14:10:51 +0000 (14:10 +0000)]
Account for stack redzone when computing sp on darwin

thread_get_register_pointer_values handles the redzone computation
automatically, but is marked as an unavailable API function. This
patch replicates its logic accounting for the stack redzone on
x86_64.

Should fix flakiness in the use_stack_threaded test for lsan on darwin.

llvm-svn: 302898

7 years ago[DAGCombine] Use SelectionDAG::getZExtOrTrunc helper. NFCI.
Simon Pilgrim [Fri, 12 May 2017 13:22:12 +0000 (13:22 +0000)]
[DAGCombine] Use SelectionDAG::getZExtOrTrunc helper. NFCI.

llvm-svn: 302897

7 years agoUse SDValue::getOperand() helper. NFCI.
Simon Pilgrim [Fri, 12 May 2017 13:20:24 +0000 (13:20 +0000)]
Use SDValue::getOperand() helper. NFCI.

llvm-svn: 302896

7 years ago[Hexagon] Make sure to pass empty struct arguments with nontrivial ctors
Krzysztof Parzyszek [Fri, 12 May 2017 13:18:07 +0000 (13:18 +0000)]
[Hexagon] Make sure to pass empty struct arguments with nontrivial ctors

Thanks to Richard Smith for the suggested fix.

This fixes llvm.org/PR33009

llvm-svn: 302895

7 years agoUse SDValue::getOperand() helper. NFCI.
Simon Pilgrim [Fri, 12 May 2017 13:08:45 +0000 (13:08 +0000)]
Use SDValue::getOperand() helper. NFCI.

llvm-svn: 302894

7 years agoclang-format: [JS] support non-null assertions after all identifiers.
Martin Probst [Fri, 12 May 2017 13:00:33 +0000 (13:00 +0000)]
clang-format: [JS] support non-null assertions after all identifiers.

Summary:
Previously:
    x = namespace !;

Now:
    x = namespace!;

Reviewers: djasper

Subscribers: klimek

Differential Revision: https://reviews.llvm.org/D33113

llvm-svn: 302893

7 years ago[NFC] [Fortran Support] Run -instnamer on testcases
Siddharth Bhat [Fri, 12 May 2017 12:36:04 +0000 (12:36 +0000)]
[NFC] [Fortran Support] Run -instnamer on testcases

llvm-svn: 302892

7 years ago[FIX] Fix regression caused by c29f4ed, testcase matches output
Siddharth Bhat [Fri, 12 May 2017 11:34:51 +0000 (11:34 +0000)]
[FIX] Fix regression caused by c29f4ed, testcase matches output

- Commit changed codegen for induction variables
- Updated testcase

llvm-svn: 302891

7 years ago[clang-tidy] Add a test for PR33020
Alexander Kornienko [Fri, 12 May 2017 11:24:58 +0000 (11:24 +0000)]
[clang-tidy] Add a test for PR33020

Fix committed in clang as r302889.

llvm-svn: 302890

7 years agoFix an assertion failure (PR33020).
Alexander Kornienko [Fri, 12 May 2017 11:24:25 +0000 (11:24 +0000)]
Fix an assertion failure (PR33020).

Adding a test separately (tools/extra/test/clang-tidy/misc-use-after-move.cpp).

llvm-svn: 302889

7 years ago[Polly][CMake] Fix variable name in target exports
Philip Pfaffe [Fri, 12 May 2017 10:39:38 +0000 (10:39 +0000)]
[Polly][CMake] Fix variable name in target exports

llvm-svn: 302888

7 years ago[msan] Remove a failing test from MemorySanitizer.ICmpRelational
Alexander Potapenko [Fri, 12 May 2017 09:39:32 +0000 (09:39 +0000)]
[msan] Remove a failing test from MemorySanitizer.ICmpRelational

This is a follow-up to r302787, which broke MemorySanitizer.ICmpRelational.

MSan is now reporting a false positive on the following test case:
  TestForNotPoisoned((poisoned(-1, 0x80000000U) >= poisoned(-1, 0U)))
, which is sort of anticipated, because we're approximating the comparison
with an OR of the arguments' shadow values.

llvm-svn: 302887

7 years ago[NFC] [Fortran Support] Cleanup Fortran Array pattern mactch testcases
Siddharth Bhat [Fri, 12 May 2017 09:37:39 +0000 (09:37 +0000)]
[NFC] [Fortran Support] Cleanup Fortran Array pattern mactch testcases

- Move the testcases to ScopInfo/ since the processing takes place in
  ScopBuilder.

- Cleanup testcases, run -polly-canonicalize on them, find minimal set
  of opt parameters.

llvm-svn: 302886

7 years ago[AVR] Migrate to new StructType::get owing to Supress all uses of LLVM_END_WITH_NULL
Leslie Zhai [Fri, 12 May 2017 09:08:03 +0000 (09:08 +0000)]
[AVR] Migrate to new StructType::get owing to Supress all uses of LLVM_END_WITH_NULL

Reviewers: dylanmckay, jroelofs, RKSimon, serge-sans-paille

Reviewed By: serge-sans-paille

Differential Revision: https://reviews.llvm.org/D33119

llvm-svn: 302885

7 years ago[ELF] - Stop support of DF_STATIC_TLS flag.
George Rimar [Fri, 12 May 2017 08:04:58 +0000 (08:04 +0000)]
[ELF] - Stop support of DF_STATIC_TLS flag.

This reverts changes introduced in r302414 "[ELF] - Set DF_STATIC_TLS flag for i386 target."

Because DF_STATIC_TLS does not look to be used by glibc or anything else.

llvm-svn: 302884

7 years ago[BPI] Ignore remainder while distributing the remaining probability from unreachanble
Serguei Katkov [Fri, 12 May 2017 07:50:06 +0000 (07:50 +0000)]
[BPI] Ignore remainder while distributing the remaining probability from unreachanble

This is a follow up patch for https://reviews.llvm.org/rL300440
to address a comment.

To make implementation to be consistent with other cases we just
ignore the remainder after distribution of remaining probability between
reachable edges.

If we reduced the probability of some edges coming to unreachable
blocks we should distribute the remaining part across other edges
coming to reachable blocks to satisfy the condition that sum of all
probabilities should be equal to one. If this remaining part is not
divided by number of "reachable" edges then we get this remainder.
This remainder probability should be pretty small. Other cases just ignore
if the sum of probabilities is not equal to one so we do the same.

Reviewers: chandlerc, sanjoy, vsk, junbuml, reames
Reviewed By: reames
Subscribers: reames, llvm-commits
Differential Revision: https://reviews.llvm.org/D32124

llvm-svn: 302883

7 years ago[APInt] Fix a case where udivrem might delete and create a new allocation instead...
Craig Topper [Fri, 12 May 2017 07:21:09 +0000 (07:21 +0000)]
[APInt] Fix a case where udivrem might delete and create a new allocation instead of reusing the original.

llvm-svn: 302882

7 years ago[ELF] - Don't allow R_X86_64_TPOFF32 dynamic relocation when linking PIC
George Rimar [Fri, 12 May 2017 07:19:11 +0000 (07:19 +0000)]
[ELF] - Don't allow R_X86_64_TPOFF32 dynamic relocation when linking PIC

Both gold and bfd restrict that one:

ld.bfd: test.o: relocation R_X86_64_TPOFF32 against `var' can not be
used when making a shared object; recompile with -fPIC
ld.gold: error: test.o: unsupported reloc 23 against global symbol var

What looks reasonable because it is 32 bit one. Patch do the same.

Differential revision: https://reviews.llvm.org/D33100

llvm-svn: 302881

7 years ago[analyzer] Add modelling of __builtin_assume
Gabor Horvath [Fri, 12 May 2017 07:02:54 +0000 (07:02 +0000)]
[analyzer] Add modelling of __builtin_assume

Differential Revision: https://reviews.llvm.org/D33092

llvm-svn: 302880

7 years ago[analyzer] Avoid an allocation in Std C function modelling
Gabor Horvath [Fri, 12 May 2017 06:53:55 +0000 (06:53 +0000)]
[analyzer] Avoid an allocation in Std C function modelling

Differential Revision: https://reviews.llvm.org/D33095

llvm-svn: 302879

7 years ago[Support/Compiler.h] - Use gnu::fallthrough for LLVM_FALLTHROUGH when available.
George Rimar [Fri, 12 May 2017 06:53:48 +0000 (06:53 +0000)]
[Support/Compiler.h] - Use gnu::fallthrough for LLVM_FALLTHROUGH when available.

I tried to compile LLD using GCC 7.1.0 and got warnings like
"warning: this statement may fall through [-Wimplicit-fallthrough=]"
(some more details are here: D32907)

GCC's __cplusplus value is 201402L by default, so macro expands to nothing,
though GCC 7 has support for [[fallthrough]].

Patch uses gnu::fallthrough when it is available and fixes warning I am observing.

Initial idea of way to fix belongs to Davide Italiano.

Differential revision: https://reviews.llvm.org/D33036

llvm-svn: 302878

7 years agoHandle a COPY with undef source operand in LowerCopy()
Jonas Paulsson [Fri, 12 May 2017 06:32:03 +0000 (06:32 +0000)]
Handle a COPY with undef source operand in LowerCopy()

Llvm-stress discovered that a COPY may end up in ExpandPostRA::LowerCopy()
with an undef source operand. It is not possible for the target to handle
this, as this flag is not passed to TII->copyPhysReg().

This patch solves this by treating such a COPY as an identity COPY.

Review: Matthias Braun
https://reviews.llvm.org/D32892

llvm-svn: 302877

7 years ago[IfConversion] Keep the CFG updated incrementally in IfConvertTriangle
Mikael Holmen [Fri, 12 May 2017 06:28:58 +0000 (06:28 +0000)]
[IfConversion] Keep the CFG updated incrementally in IfConvertTriangle

Summary:
Instead of using RemoveExtraEdges (which uses analyzeBranch, which cannot
always be trusted) at the end to fixup the CFG we keep the CFG updated as
we go along and remove or add branches and merge blocks.

This way we won't have any problems if the involved MBBs contain
unanalyzable instructions.

This fixes PR32721.

In that case we had a triangle

   EBB
   | \
   |  |
   | TBB
   |  /
   FBB

where FBB didn't have any successors at all since it ended with an
unconditional return. Then TBB and FBB were be merged into EBB, but EBB
would still keep its successors, and the use of analyzeBranch and
CorrectExtraCFGEdges wouldn't help to remove them since the return
instruction is not analyzable (at least not on ARM).

Reviewers: kparzysz, iteratee, MatzeB

Reviewed By: iteratee

Subscribers: aemerson, rengolin, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D33037

llvm-svn: 302876

7 years agoUpdate StructuredData::String to return StringRefs.
Zachary Turner [Fri, 12 May 2017 05:49:54 +0000 (05:49 +0000)]
Update StructuredData::String to return StringRefs.

It was returning const std::string& which was leading to
unnecessary copies all over the place, and preventing people
from doing things like Dict->GetValueForKeyAsString("foo", ref);

llvm-svn: 302875

7 years agoFix Linux Buildbot.
Zachary Turner [Fri, 12 May 2017 05:48:54 +0000 (05:48 +0000)]
Fix Linux Buildbot.

llvm-svn: 302874

7 years ago[XRay][compiler-rt] Only run custom event logging in x86_64-linux
Dean Michael Berris [Fri, 12 May 2017 05:13:11 +0000 (05:13 +0000)]
[XRay][compiler-rt] Only run custom event logging in x86_64-linux

We only have an implementation in x86_64 that works for the
patching/unpatching and runtime support (trampolines).

Follow-up to D30630.

llvm-svn: 302873

7 years agoRename Error -> Status.
Zachary Turner [Fri, 12 May 2017 04:51:55 +0000 (04:51 +0000)]
Rename Error -> Status.

This renames the LLDB error class to Status, as discussed
on the lldb-dev mailing list.

A change of this magnitude cannot easily be done without
find and replace, but that has potential to catch unwanted
occurrences of common strings such as "Error".  Every effort
was made to find all the obvious things such as the word "Error"
appearing in a string, etc, but it's possible there are still
some lingering occurences left around.  Hopefully nothing too
serious.

llvm-svn: 302872

7 years agoFix C++03 test failures caused by static_assert emulation
Eric Fiselier [Fri, 12 May 2017 03:53:56 +0000 (03:53 +0000)]
Fix C++03 test failures caused by static_assert emulation

llvm-svn: 302871

7 years agoCleanup test issues reported by STL @ Microsoft.
Eric Fiselier [Fri, 12 May 2017 03:38:28 +0000 (03:38 +0000)]
Cleanup test issues reported by STL @ Microsoft.

This patch cleans up a number of issues reported by STL, including:

1) Fix duplicate is_convertible test.
2) Move non-standard reference_wrapper tests under test/libcxx
3) Fix assumption that sizeof(wchar_t) == 32 in the codecvt and
   wstring_convert tests.

llvm-svn: 302870

7 years agoRemove non-standard basic_string_view::clear() member.
Eric Fiselier [Fri, 12 May 2017 03:35:53 +0000 (03:35 +0000)]
Remove non-standard basic_string_view::clear() member.

This patch removes the clear() member from <string_view>. The
modifier was removed from the TS before it ever landed in the standard.
There is no reason libc++ should be providing this method.

llvm-svn: 302869

7 years ago[Polly] Remove unused header
Hongbin Zheng [Fri, 12 May 2017 02:21:50 +0000 (02:21 +0000)]
[Polly] Remove unused header

llvm-svn: 302868

7 years ago[PM/Unswitch] Teach the new simple loop unswitch to handle loop
Chandler Carruth [Fri, 12 May 2017 02:19:59 +0000 (02:19 +0000)]
[PM/Unswitch] Teach the new simple loop unswitch to handle loop
invariant PHI inputs and to rewrite PHI nodes during the actual
unswitching.

The checking is quite easy, but rewriting the PHI nodes is somewhat
surprisingly challenging. This should handle both branches and switches.

I think this is now a full featured trivial unswitcher, and more full
featured than the trivial cases in the old pass while still being (IMO)
somewhat simpler in how it works.

Next up is to verify its correctness in more widespread testing, and
then to add non-trivial unswitching.

Thanks to Davide and Sanjoy for the excellent review. There is one
remaining question that I may address in a follow-up patch (see the
review thread for details) but it isn't related to the functionality
specifically.

Differential Revision: https://reviews.llvm.org/D32699

llvm-svn: 302867

7 years ago[Polly] Generate more 'canonical' induction variable
Hongbin Zheng [Fri, 12 May 2017 02:17:15 +0000 (02:17 +0000)]
[Polly] Generate more 'canonical' induction variable

Today Polly generates induction variable in this way:

polly.indvar = phi 0, polly.indvar.next
...
polly.indvar.next = polly.indvar + stide
polly.loop_cond = predicate polly.indvar, (UB - stride)

Instead of:

polly.indvar = phi 0, polly.indvar.next
...
polly.indvar.next = polly.indvar + stide
polly.loop_cond = predicate polly.indvar.next, UB

The way Polly generate induction variable cause some problem in the indvar simplify pass.
This patch make polly generate the later form, by assuming the induction variable never overflow

Differential Revision: https://reviews.llvm.org/D33089

llvm-svn: 302866

7 years agoMove POSIX specific test under test/libcxx subdirectory
Eric Fiselier [Fri, 12 May 2017 02:02:09 +0000 (02:02 +0000)]
Move POSIX specific test under test/libcxx subdirectory

llvm-svn: 302865

7 years agoMove tests for libc++ configurations into libcxx/ test subdirectory
Eric Fiselier [Fri, 12 May 2017 01:49:32 +0000 (01:49 +0000)]
Move tests for libc++ configurations into libcxx/ test subdirectory

llvm-svn: 302864

7 years ago[APInt] Add a utility method to change the bit width and storage size of an APInt.
Craig Topper [Fri, 12 May 2017 01:46:01 +0000 (01:46 +0000)]
[APInt] Add a utility method to change the bit width and storage size of an APInt.

Summary:
This adds a resize method to APInt that manages deleting/allocating storage for an APInt and changes its bit width. Use this to simplify code in copy assignment and divide.

The assignment code in particular was overly complicated. Treating every possible case as a separate implementation. I'm also pretty sure the clearUnusedBits code at the end was unnecessary. Since we always copying whole words from the source APInt. All unused bits should be clear in the source.

Reviewers: hans, RKSimon

Reviewed By: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D33073

llvm-svn: 302863

7 years agoFix or move tests with non-standard assumptions
Eric Fiselier [Fri, 12 May 2017 01:44:51 +0000 (01:44 +0000)]
Fix or move tests with non-standard assumptions

llvm-svn: 302862

7 years ago[XRay][compiler-rt] Remove unused variable after refactoring
Dean Michael Berris [Fri, 12 May 2017 01:43:20 +0000 (01:43 +0000)]
[XRay][compiler-rt] Remove unused variable after refactoring

Follow-up to D30630.

llvm-svn: 302861