platform/upstream/llvm.git
6 years ago[Utils] Salvage debug info of DCE'ed mul/sdiv/srem instructions
Vedant Kumar [Tue, 13 Feb 2018 01:09:52 +0000 (01:09 +0000)]
[Utils] Salvage debug info of DCE'ed mul/sdiv/srem instructions

Here are the number of additional debug values salvaged in a stage2
build of clang:

  63 SALVAGE: MUL
  1250 SALVAGE: SDIV

(No values were salvaged from `srem` instructions in this experiment,
but it's a simple case to handle so we might as well.)

llvm-svn: 324976

6 years ago[Utils] Salvage debug info of DCE'ed shl/lhsr/ashr instructions
Vedant Kumar [Tue, 13 Feb 2018 01:09:49 +0000 (01:09 +0000)]
[Utils] Salvage debug info of DCE'ed shl/lhsr/ashr instructions

Here are the number of additional debug values salvaged in a stage2
build of clang:

  1912 SALVAGE: ASHR
   405 SALVAGE: LSHR
   249 SALVAGE: SHL

llvm-svn: 324975

6 years ago[Utils] Salvage the debug info of DCE'ed 'sub' instructions
Vedant Kumar [Tue, 13 Feb 2018 01:09:47 +0000 (01:09 +0000)]
[Utils] Salvage the debug info of DCE'ed 'sub' instructions

This salvages 14 debug values in a stage2 build of clang.

llvm-svn: 324974

6 years ago[Utils] Salvage the debug info of DCE'ed 'xor' instructions
Vedant Kumar [Tue, 13 Feb 2018 01:09:46 +0000 (01:09 +0000)]
[Utils] Salvage the debug info of DCE'ed 'xor' instructions

This salvages 259 debug values in a stage2 build of clang.

Differential Revision: https://reviews.llvm.org/D43207

llvm-svn: 324973

6 years agoDocument the shortcomings of DwarfExpression::addMachineReg().
Adrian Prantl [Tue, 13 Feb 2018 01:02:56 +0000 (01:02 +0000)]
Document the shortcomings of DwarfExpression::addMachineReg().

Also make a drive-by-fix of a bug in the subregister scan code that
only triggers with an incomplete or otherwise very irregular machine
description.

rdar://problem/37404493

llvm-svn: 324972

6 years agoGlobalISel: IRTranslate llvm.fmuladd.* intrinsic
Volkan Keles [Tue, 13 Feb 2018 00:47:46 +0000 (00:47 +0000)]
GlobalISel: IRTranslate llvm.fmuladd.* intrinsic

Reviewers: qcolombet, ab, dsanders, aditya_nandakumar, bogner

Reviewed By: qcolombet

Subscribers: rovka, kristof.beyls, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D43090

llvm-svn: 324971

6 years ago[demangler] Support for initializer lists and designated initializers.
Erik Pilkington [Tue, 13 Feb 2018 00:15:56 +0000 (00:15 +0000)]
[demangler] Support for initializer lists and designated initializers.

llvm-svn: 324970

6 years ago[demangler] Support for dependent elaborate type specifiers.
Erik Pilkington [Tue, 13 Feb 2018 00:15:53 +0000 (00:15 +0000)]
[demangler] Support for dependent elaborate type specifiers.

llvm-svn: 324969

6 years ago[demangler] All <qualifiers> on one type should share one entry in the substitution...
Erik Pilkington [Tue, 13 Feb 2018 00:15:46 +0000 (00:15 +0000)]
[demangler] All <qualifiers> on one type should share one entry in the substitution table.

Previously, both <extended-qualifier>s and <CV-qualifiers> got their own entries.

llvm-svn: 324968

6 years ago[InstSimplify] allow exp/log simplifications with only 'reassoc' FMF
Sanjay Patel [Mon, 12 Feb 2018 23:51:23 +0000 (23:51 +0000)]
[InstSimplify] allow exp/log simplifications with only 'reassoc' FMF

These intrinsic folds were added with D41381, but only allowed with isFast().
That's more than necessary because FMF has 'reassoc' to apply to these
kinds of folds after D39304, and that's all we need in these cases.

Differential Revision: https://reviews.llvm.org/D43160

llvm-svn: 324967

6 years ago[WebAssembly] Update ADT/TripleTest.cpp now that default file format has changed
Sam Clegg [Mon, 12 Feb 2018 23:47:38 +0000 (23:47 +0000)]
[WebAssembly] Update ADT/TripleTest.cpp now that default file format has changed

Differential Revision: https://reviews.llvm.org/D43212

llvm-svn: 324966

6 years ago[Modules] Fix remapping from Foo.Private to Foo_Private to happen before typo correction
Bruno Cardoso Lopes [Mon, 12 Feb 2018 23:43:21 +0000 (23:43 +0000)]
[Modules] Fix remapping from Foo.Private to Foo_Private to happen before typo correction

Typo correction is the last step here, remapping should come first.

rdar://problem/37351970

llvm-svn: 324965

6 years ago[X86] Auto generate complete checks. NFC
Craig Topper [Mon, 12 Feb 2018 23:43:10 +0000 (23:43 +0000)]
[X86] Auto generate complete checks. NFC

llvm-svn: 324964

6 years ago[InstSimplify] change tests to 'fast' to reflect current folds
Sanjay Patel [Mon, 12 Feb 2018 23:39:10 +0000 (23:39 +0000)]
[InstSimplify] change tests to 'fast' to reflect current folds

The diff to use 'reassoc' is part of D43160; it should not have
been made with rL324961. Reverting that part here, so we'll
see the intended diff with the code change.

llvm-svn: 324963

6 years ago[Dominators] Always recalculate postdominators when update yields different roots
Jakub Kuderski [Mon, 12 Feb 2018 23:37:27 +0000 (23:37 +0000)]
[Dominators] Always recalculate postdominators when update yields different roots

Summary:
This patch makes postdominators always recalculate the tree when an update causes to change the tree roots.
As @dmgreen noticed in [[ https://reviews.llvm.org/D41298 | D41298 ]], the previous implementation was not conservative enough and it was possible to end up with a PostDomTree that was different than a freshly computed one.
The patch also compares postdominators with a freshly computed tree at the end of full verification to make sure we don't hit similar issues in the future.

This should (ideally) be also backported to 6.0 before the release, although I don't have any reports of this causing an observable error. It should be safe to do it even if it's late in the release, as the change only makes the current behavior more conservative.

Reviewers: dmgreen, dberlin, davide, brzycki, grosser

Reviewed By: brzycki, grosser

Subscribers: llvm-commits, dmgreen

Differential Revision: https://reviews.llvm.org/D43140

llvm-svn: 324962

6 years ago[InstSimplify] consolidate tests for log-exp inverse folds
Sanjay Patel [Mon, 12 Feb 2018 23:18:11 +0000 (23:18 +0000)]
[InstSimplify] consolidate tests for log-exp inverse folds

Some tests didn't add much value because we already show stronger
constraints for the folds in other tests, so the weaker versions
were deleted.

Moved the remaining tests into 1 file because the folds are
very similar and handled from 1 place in the code.

llvm-svn: 324961

6 years ago[InstCombine] Simplify MemTransferInst's source and dest alignments separately
Daniel Neilson [Mon, 12 Feb 2018 23:06:55 +0000 (23:06 +0000)]
[InstCombine] Simplify MemTransferInst's source and dest alignments separately

Summary:
This change is part of step five in the series of changes to remove alignment argument from
memcpy/memmove/memset in favour of alignment attributes. In particular, this changes the
InstCombine pass to cease using the deprecated MemoryIntrinsic::getAlignment() method, and
instead we use the separate getSourceAlignment and getDestAlignment APIs to simplify
the source and destination alignment attributes separately.

Steps:
Step 1) Remove alignment parameter and create alignment parameter attributes for
memcpy/memmove/memset. ( rL322965, rC322964, rL322963 )
Step 2) Expand the IRBuilder API to allow creation of memcpy/memmove with differing
source and dest alignments. ( rL323597 )
Step 3) Update Clang to use the new IRBuilder API. ( rC323617 )
Step 4) Update Polly to use the new IRBuilder API. ( rL323618 )
Step 5) Update LLVM passes that create memcpy/memmove calls to use the new IRBuilder API,
and those that use use MemIntrinsicInst::[get|set]Alignment() to use [get|set]DestAlignment()
and [get|set]SourceAlignment() instead. ( rL323886, rL323891, rL324148, rL324273, rL324278,
rL324384, rL324395, rL324402, rL324626, rL324642, rL324653, rL324654, rL324773, rL324774,
rL324781, rL324784, rL324955 )
Step 6) Remove the single-alignment IRBuilder API for memcpy/memmove, and the
MemIntrinsicInst::[get|set]Alignment() methods.

Reference
   http://lists.llvm.org/pipermail/llvm-dev/2015-August/089384.html
   http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20151109/312083.html

Reviewers: majnemer, bollu, efriedma

Reviewed By: efriedma

Subscribers: efriedma, llvm-commits

Differential Revision: https://reviews.llvm.org/D42871

llvm-svn: 324960

6 years ago[libcxx] [test] Strip trailing whitespace, NFC.
Stephan T. Lavavej [Mon, 12 Feb 2018 22:54:35 +0000 (22:54 +0000)]
[libcxx] [test] Strip trailing whitespace, NFC.

llvm-svn: 324959

6 years agoRevert "[LSR] Avoid UB overflow when examining reuse opportunities"
Adam Nemet [Mon, 12 Feb 2018 22:42:13 +0000 (22:42 +0000)]
Revert "[LSR] Avoid UB overflow when examining reuse opportunities"

This reverts commit r324943.

Breaking bots, reverting for Gerolf.

llvm-svn: 324958

6 years ago[WebAssembly] MC: Remove redundant struct types
Sam Clegg [Mon, 12 Feb 2018 22:41:29 +0000 (22:41 +0000)]
[WebAssembly] MC: Remove redundant struct types

Differential Revision: https://reviews.llvm.org/D43210

llvm-svn: 324957

6 years ago[analyzer] Exploration strategy prioritizing unexplored coverage first
George Karpenkov [Mon, 12 Feb 2018 22:39:57 +0000 (22:39 +0000)]
[analyzer] Exploration strategy prioritizing unexplored coverage first

See reviews.llvm.org/M1 for evaluation, and
lists.llvm.org/pipermail/cfe-dev/2018-January/056718.html for
discussion.

Differential Revision: https://reviews.llvm.org/D42775

llvm-svn: 324956

6 years ago[SafeStack] Use updated CreateMemCpy API to set more accurate source and destination...
Daniel Neilson [Mon, 12 Feb 2018 22:39:47 +0000 (22:39 +0000)]
[SafeStack] Use updated CreateMemCpy API to set more accurate source and destination alignments.

Summary:
This change is part of step five in the series of changes to remove alignment argument from
memcpy/memmove/memset in favour of alignment attributes. In particular, this changes the
creation of memcpys in the SafeStack pass to set the alignment of the destination object to
its stack alignment while separately setting the source byval arguments alignment to its
alignment.

Steps:
Step 1) Remove alignment parameter and create alignment parameter attributes for
memcpy/memmove/memset. ( rL322965, rC322964, rL322963 )
Step 2) Expand the IRBuilder API to allow creation of memcpy/memmove with differing
source and dest alignments. ( rL323597 )
Step 3) Update Clang to use the new IRBuilder API. ( rC323617 )
Step 4) Update Polly to use the new IRBuilder API. ( rL323618 )
Step 5) Update LLVM passes that create memcpy/memmove calls to use the new IRBuilder API,
and those that use use MemIntrinsicInst::[get|set]Alignment() to use [get|set]DestAlignment()
and [get|set]SourceAlignment() instead. (rL323886, rL323891, rL324148, rL324273, rL324278,
rL324384, rL324395, rL324402, rL324626, rL324642, rL324653, rL324654, rL324773, rL324774,
rL324781, rL324784 )
Step 6) Remove the single-alignment IRBuilder API for memcpy/memmove, and the
MemIntrinsicInst::[get|set]Alignment() methods.

Reference
   http://lists.llvm.org/pipermail/llvm-dev/2015-August/089384.html
   http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20151109/312083.html

Reviewers: eugenis, bollu

Reviewed By: eugenis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D42710

llvm-svn: 324955

6 years ago[X86] Reverse the operand order of the implementation of the kunpack builtins.
Craig Topper [Mon, 12 Feb 2018 22:38:52 +0000 (22:38 +0000)]
[X86] Reverse the operand order of the implementation of the kunpack builtins.

The second operand needs to be in the lower bits of the concatenation. This matches llvm 5.0, gcc, and icc behavior.

Fixes PR36360.

llvm-svn: 324954

6 years ago[X86] Reverse the operand order of the autoupgrade of the kunpack builtins.
Craig Topper [Mon, 12 Feb 2018 22:38:34 +0000 (22:38 +0000)]
[X86] Reverse the operand order of the autoupgrade of the kunpack builtins.

The second operand needs to be in the lower bits of the concatenation. This matches llvm 5.0, gcc, and icc behavior.

Fixes PR36360.

llvm-svn: 324953

6 years ago[CFG] Provide construction contexts for return value constructors.
Artem Dergachev [Mon, 12 Feb 2018 22:36:36 +0000 (22:36 +0000)]
[CFG] Provide construction contexts for return value constructors.

When the current function returns a C++ object by value, CFG elements for
constructors that construct the return values can now be queried to discover
that they're indeed participating in construction of the respective return value
at the respective return statement.

Differential Revision: https://reviews.llvm.org/D42875

llvm-svn: 324952

6 years agoDo not use Decompressor::isCompressedELFSection. NFC.
Rui Ueyama [Mon, 12 Feb 2018 22:32:57 +0000 (22:32 +0000)]
Do not use Decompressor::isCompressedELFSection. NFC.

In order to identify a compressed section, we check if a section name
starts with ".zdebug" or the section has SHF_COMPRESSED flag. We already
use the knowledge in this function. So hiding that check in
isCompressedELFSection doesn't make sense.

llvm-svn: 324951

6 years ago[WebAssembly] MC: Remove redundant `private` specifiers
Sam Clegg [Mon, 12 Feb 2018 22:29:51 +0000 (22:29 +0000)]
[WebAssembly] MC: Remove redundant `private` specifiers

This is inline with the other MCSection and MCSymbol subclasses

llvm-svn: 324950

6 years agoRemove 'z' in .zdebug when decompressing a section.
Rui Ueyama [Mon, 12 Feb 2018 22:25:45 +0000 (22:25 +0000)]
Remove 'z' in .zdebug when decompressing a section.

When decompressing a compressed debug section, we drop SHF_COMPRESSED
flag but we didn't drop "z" in ".zdebug" section name. This patch does
that for consistency.

This change also fixes the issue that .zdebug_gnu_pubnames are not
dropped when we are creating a .gdb_index section.

llvm-svn: 324949

6 years agoLook for 32-bit libraries in /usr/lib32 for MIPS O32 on FreeBSD.
John Baldwin [Mon, 12 Feb 2018 22:22:01 +0000 (22:22 +0000)]
Look for 32-bit libraries in /usr/lib32 for MIPS O32 on FreeBSD.

Summary:
FreeBSD N64 MIPS systems can include 32-bit libraries for O32 in
/usr/lib32 similar to the 32-bit compatibility libraries provided
for FreeBSD/amd64 and FreeBSD/powerpc64.

Reviewers: dim

Reviewed By: dim

Differential Revision: https://reviews.llvm.org/D42972

llvm-svn: 324948

6 years ago[x86] add select test to show there's no single right answer (PR28968); NFC
Sanjay Patel [Mon, 12 Feb 2018 22:19:24 +0000 (22:19 +0000)]
[x86] add select test to show there's no single right answer (PR28968); NFC

llvm-svn: 324947

6 years ago[analyzer] [tests] Fix a typo in analyzer testing script.
George Karpenkov [Mon, 12 Feb 2018 22:13:01 +0000 (22:13 +0000)]
[analyzer] [tests] Fix a typo in analyzer testing script.

Incorrect option instance construction.

llvm-svn: 324946

6 years agoSimplify switch statement (NFC)
Adrian Prantl [Mon, 12 Feb 2018 22:09:57 +0000 (22:09 +0000)]
Simplify switch statement (NFC)

llvm-svn: 324945

6 years agos/uncompress/decompress/g.
Rui Ueyama [Mon, 12 Feb 2018 21:56:14 +0000 (21:56 +0000)]
s/uncompress/decompress/g.

In lld, we use both "uncompress" and "decompress" which is confusing.
Since LLVM uses "decompress", we should use the same term.

llvm-svn: 324944

6 years ago[LSR] Avoid UB overflow when examining reuse opportunities
Gerolf Hoflehner [Mon, 12 Feb 2018 21:49:32 +0000 (21:49 +0000)]
[LSR] Avoid UB overflow when examining reuse opportunities

llvm-svn: 324943

6 years ago[WebAssembly] Fix casting MCSymbol to MCSymbolWasm on ELF
Jacob Gravelle [Mon, 12 Feb 2018 21:41:12 +0000 (21:41 +0000)]
[WebAssembly] Fix casting MCSymbol to MCSymbolWasm on ELF

Summary:
wasm32-unknown-unknown-elf has MCSymbols that are not MCSymbolWasms, so
we need a non-asserting cast here.

Reviewers: dschuff, sunfish

Subscribers: jfb, sbc100, aheejin, llvm-commits

Differential Revision: https://reviews.llvm.org/D43205

llvm-svn: 324942

6 years ago[DAG] make binops with undef operands consistent with IR
Sanjay Patel [Mon, 12 Feb 2018 21:37:27 +0000 (21:37 +0000)]
[DAG] make binops with undef operands consistent with IR

This started by noticing that scalar and vector types were producing different results with div ops in PR36305:
https://bugs.llvm.org/show_bug.cgi?id=36305

...but the problem is bigger. I couldn't keep it straight without a table, so I'm attaching that as a PDF to
the review. The x86 tests in undef-ops.ll correspond to that table.

Green means that instsimplify and the DAG agree on the result for all types.
Red means the DAG was returning undef when IR was not.
Yellow means the DAG was returning a non-undef result when IR returned undef.

This patch assumes that we're currently doing the right thing in IR.

Note: I couldn't find any problems with lowering vector constants as the code comments were warning,
but those comments were written long ago in rL36413 .

Differential Revision: https://reviews.llvm.org/D43141

llvm-svn: 324941

6 years ago[AArch64] Fixes for ARMv8.2-A FP16 scalar intrinsic - clang portion
Abderrazek Zaafrani [Mon, 12 Feb 2018 21:26:06 +0000 (21:26 +0000)]
[AArch64] Fixes for ARMv8.2-A FP16 scalar intrinsic - clang portion

https://reviews.llvm.org/D42993

llvm-svn: 324940

6 years ago[X86] Simplify X86DAGToDAGISel::matchBEXTRFromAnd by creating an X86ISD::BEXTR node...
Craig Topper [Mon, 12 Feb 2018 21:18:11 +0000 (21:18 +0000)]
[X86] Simplify X86DAGToDAGISel::matchBEXTRFromAnd by creating an X86ISD::BEXTR node and calling Select. Add isel patterns to recognize this node.

This removes a bunch of special case code for selecting the immediate and folding loads.

llvm-svn: 324939

6 years ago[X86] Remove unused multiclass argument. NFC
Craig Topper [Mon, 12 Feb 2018 21:18:09 +0000 (21:18 +0000)]
[X86] Remove unused multiclass argument. NFC

llvm-svn: 324938

6 years ago[GlobalMerge] Allow merging of dllexported variables
Martin Storsjo [Mon, 12 Feb 2018 21:14:21 +0000 (21:14 +0000)]
[GlobalMerge] Allow merging of dllexported variables

If merging them, the dllexport attribute needs to be brought along
to the new GlobalAlias.

Differential Revision: https://reviews.llvm.org/D43192

llvm-svn: 324937

6 years agoFix the syntax highlighting of strings in dwarfdump.
Adrian Prantl [Mon, 12 Feb 2018 21:11:23 +0000 (21:11 +0000)]
Fix the syntax highlighting of strings in dwarfdump.

llvm-svn: 324936

6 years agoFactor out common condition into an easier to understand helper function (NFC).
Adrian Prantl [Mon, 12 Feb 2018 21:11:14 +0000 (21:11 +0000)]
Factor out common condition into an easier to understand helper function (NFC).

llvm-svn: 324935

6 years ago[ScopBuilder] scalar-indep: Fix mutually referencing PHIs.
Michael Kruse [Mon, 12 Feb 2018 21:09:40 +0000 (21:09 +0000)]
[ScopBuilder] scalar-indep: Fix mutually referencing PHIs.

Two or more PHIs mutually using each other directly or indirectly as
incoming value could cause that a PHI WRITE be added before the PHI READ
(i.e. it overwrites the current incoming value with the next incoming
value before it being read).

Fix by ensuring that the PHI WRITE and PHI READ are in the same statement.

This should fix the miscompile of SingleSource/Benchmark/Misc/whetstone
from the test-suite.

llvm-svn: 324934

6 years agoMove the debuginfo-dce-or test into debuginfo-variables.ll, NFC
Vedant Kumar [Mon, 12 Feb 2018 21:02:45 +0000 (21:02 +0000)]
Move the debuginfo-dce-or test into debuginfo-variables.ll, NFC

llvm-svn: 324933

6 years agoRevert "[ThinLTO] Add GraphTraits for FunctionSummaries"
Volodymyr Sapsai [Mon, 12 Feb 2018 20:43:31 +0000 (20:43 +0000)]
Revert "[ThinLTO] Add GraphTraits for FunctionSummaries"

It caused assertion failure
Assertion failed: (!DD.IsLambda && !MergeDD.IsLambda && "faked up lambda definition?"), function MergeDefinitionData, file /Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/tools/clang/lib/Serialization/ASTReaderDecl.cpp, line 1675.

on the second stage build bots.

llvm-svn: 324932

6 years agoRevert "Follow on to rL324854 (Added tests)" as part of r324854 revert.
Volodymyr Sapsai [Mon, 12 Feb 2018 20:42:18 +0000 (20:42 +0000)]
Revert "Follow on to rL324854 (Added tests)" as part of r324854 revert.

r324854 caused broken build on the second stage build bots.

llvm-svn: 324931

6 years agoRemove the pubnames support from the Xcode project.
Jim Ingham [Mon, 12 Feb 2018 20:25:37 +0000 (20:25 +0000)]
Remove the pubnames support from the Xcode project.

llvm-svn: 324930

6 years ago[DebugInfo] Update Checksum handling in CGDebugInfo
Scott Linder [Mon, 12 Feb 2018 19:47:05 +0000 (19:47 +0000)]
[DebugInfo] Update Checksum handling in CGDebugInfo

Update to match new DIFile API.

llvm-svn: 324929

6 years ago[DebugInfo] Unify ChecksumKind and Checksum value in DIFile
Scott Linder [Mon, 12 Feb 2018 19:45:54 +0000 (19:45 +0000)]
[DebugInfo] Unify ChecksumKind and Checksum value in DIFile

Rather than encode the absence of a checksum with a Kind variant, instead put
both the kind and value in a struct and wrap it in an Optional.

Differential Revision: http://reviews.llvm.org/D43043

llvm-svn: 324928

6 years ago[InstCombine] X / (X * Y) --> 1.0 / Y
Sanjay Patel [Mon, 12 Feb 2018 19:39:21 +0000 (19:39 +0000)]
[InstCombine] X / (X * Y) --> 1.0 / Y

This is similar to the instsimplify fold added with D42385
( rL323716 )
...but this can't be in instsimplify because we're creating/morphing
a different instruction.

llvm-svn: 324927

6 years ago[InstCombine] add tests for missing fdiv fold; NFC
Sanjay Patel [Mon, 12 Feb 2018 19:23:39 +0000 (19:23 +0000)]
[InstCombine] add tests for missing fdiv fold; NFC

llvm-svn: 324926

6 years agoRemove dead code for handling DWARF pubnames
Adrian McCarthy [Mon, 12 Feb 2018 19:19:04 +0000 (19:19 +0000)]
Remove dead code for handling DWARF pubnames

Summary:
LLDB doesn't use this code, the code has no tests, and the code does suspicious
things like hashing pointers to strings instead of the strings themselves.

Subscribers: sanjoy, mgorny, JDevlieghere

Differential Revision: https://reviews.llvm.org/D43202

llvm-svn: 324925

6 years ago[InstCombine] regenerate checks; NFC
Sanjay Patel [Mon, 12 Feb 2018 19:14:01 +0000 (19:14 +0000)]
[InstCombine] regenerate checks; NFC

llvm-svn: 324924

6 years agoImplement LWG 2835 - fix <tgmath.h>
Marshall Clow [Mon, 12 Feb 2018 19:13:24 +0000 (19:13 +0000)]
Implement LWG 2835 - fix <tgmath.h>

llvm-svn: 324923

6 years ago[InstCombine] various clean-ups for div transforms; NFC
Sanjay Patel [Mon, 12 Feb 2018 18:38:35 +0000 (18:38 +0000)]
[InstCombine] various clean-ups for div transforms; NFC

llvm-svn: 324922

6 years ago[testsuite] Reintroduce test to check leaking.
Davide Italiano [Mon, 12 Feb 2018 18:06:34 +0000 (18:06 +0000)]
[testsuite] Reintroduce test to check leaking.

It wasn't python leaking, it was lldb. Thanks to Pavel for the
explanation. Pointy-hat to me.

llvm-svn: 324919

6 years agoAdd a unit test for Driver::getDefaultModuleCachePath().
Adrian Prantl [Mon, 12 Feb 2018 17:59:54 +0000 (17:59 +0000)]
Add a unit test for Driver::getDefaultModuleCachePath().

llvm-svn: 324917

6 years ago[LICM] update BlockColors after splitting predecessors
Jun Bum Lim [Mon, 12 Feb 2018 17:56:55 +0000 (17:56 +0000)]
[LICM] update BlockColors after splitting predecessors

Update BlockColors after splitting predecessors. Do not allow splitting
EHPad for sinking when the BlockColors is not empty, so we can
simply assign predecessor's color to the new block.

Fixes PR36184

llvm-svn: 324916

6 years agoFurther cleanup to Driver mode code, as suggested by dblaikie [NFC]
Erich Keane [Mon, 12 Feb 2018 17:47:01 +0000 (17:47 +0000)]
Further cleanup to Driver mode code, as suggested by dblaikie [NFC]

llvm-svn: 324915

6 years ago[libclang] Add `CXSymbolRole role` to CXIdxEntityRefInfo
Fangrui Song [Mon, 12 Feb 2018 17:42:09 +0000 (17:42 +0000)]
[libclang] Add `CXSymbolRole role` to CXIdxEntityRefInfo

Summary:
CXIdxEntityRefInfo contains the member `CXIdxEntityRefKind kind;` to
differentiate implicit and direct calls. However, there are more roles
defined in SymbolRole. Among them, `Read/Write` are probably the most
useful ones as they can be used to differentiate Read/Write occurrences
of a symbol for document highlight in a text document.

See `export namespace DocumentHighlightKind`
on https://microsoft.github.io/language-server-protocol/specification

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D42895

llvm-svn: 324914

6 years ago[Sema] Don't mark plain MS enums as fixed
Reid Kleckner [Mon, 12 Feb 2018 17:37:06 +0000 (17:37 +0000)]
[Sema] Don't mark plain MS enums as fixed

Summary:
This fixes a flaw in our AST: PR27098

MSVC always gives plain enums the underlying type 'int'. Clang does this
as well, but we claim the enum is "fixed", as if the user actually wrote
': int'. It means we end up emitting spurious -Wsign-compare warnings on
code like this:

  enum Vals { E1, E2, E3 };
  bool f(unsigned v1, Vals v2) {
    return v1 == v2;
  }

We think 'v2' can take on negative values because we think 'Vals' is
fixed. This fixes that.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D43110

llvm-svn: 324913

6 years ago[AArch64] Fixes for ARMv8.2-A FP16 scalar intrinsic - llvm portion
Abderrazek Zaafrani [Mon, 12 Feb 2018 17:35:42 +0000 (17:35 +0000)]
[AArch64] Fixes for ARMv8.2-A FP16 scalar intrinsic - llvm portion

https://reviews.llvm.org/D42993

llvm-svn: 324912

6 years agoImplement LWG#2908 - The less-than operator for shared pointers could do more, and...
Marshall Clow [Mon, 12 Feb 2018 17:26:40 +0000 (17:26 +0000)]
Implement LWG#2908 - The less-than operator for shared pointers could do more, and mark 2878 as complete as well (we already do that)

llvm-svn: 324911

6 years ago[X86] Add missing scheduling class tag for i64 absolute address moves
Simon Pilgrim [Mon, 12 Feb 2018 17:21:28 +0000 (17:21 +0000)]
[X86] Add missing scheduling class tag for i64 absolute address moves

Expand existing SchedRW to encompass these like it did for the other memory offset movs - added comments to closing braces to keep track of def scopes.

We only tagged it with the itinerary class, so completeness checks were erroneously passed (PR35639).

llvm-svn: 324910

6 years agoUpdate target-note-test to be current with the AMDGPU changes
Erich Keane [Mon, 12 Feb 2018 17:19:57 +0000 (17:19 +0000)]
Update target-note-test to be current with the AMDGPU changes

llvm-svn: 324909

6 years ago[AArch64] Improve v8.1-A code-gen for atomic load-and
Oliver Stannard [Mon, 12 Feb 2018 17:03:11 +0000 (17:03 +0000)]
[AArch64] Improve v8.1-A code-gen for atomic load-and

Armv8.1-A added an atomic load-clear instruction (which performs bitwise
and with the complement of it's operand), but not a load-and
instruction. Our current code-generation for atomic load-and always
inserts an MVN instruction to invert its argument, even if it could be
folded into a constant or another instruction.

This adds lowering early in selection DAG to convert a load-and
operation into an xor with -1 and a load-clear, allowing the normal DAG
optimisations to work on it.

To do this, I've had to add a new ISD opcode, ATOMIC_LOAD_CLR. I don't
see any easy way to do this with an AArch64-specific ISD node, because
the code-generation for atomic operations assumes the SDNodes are of
type AtomicSDNode.

I've left the old tablegen patterns in because they are still needed for
global isel.

Differential revision: https://reviews.llvm.org/D42478

llvm-svn: 324908

6 years agoMake attribute-target on a Definition-after-use update the LLVM attributes
Erich Keane [Mon, 12 Feb 2018 17:01:41 +0000 (17:01 +0000)]
Make attribute-target on a Definition-after-use update the LLVM attributes

As reported here: https://bugs.llvm.org/show_bug.cgi?id=36301
The issue is that the 'use' causes the plain declaration to emit
the attributes to LLVM-IR. However, if the definition added it
later, these would silently disappear.

This commit extracts that logic to its own function in CodeGenModule,
and has the attribute-applications done during 'definition' update
the attributes properly.

Differential Revision: https://reviews.llvm.org/D43095

llvm-svn: 324907

6 years ago[sanitizer] Size class map & local cache improvements
Kostya Kortchinsky [Mon, 12 Feb 2018 16:59:17 +0000 (16:59 +0000)]
[sanitizer] Size class map & local cache improvements

Summary:
- Reland rL324263, this time allowing for a compile-time decision as to whether
  or not use the 32-bit division. A single test is using a class map covering
  a maximum size greater than 4GB, this can be checked via the template
  parameters, and allows SizeClassAllocator64PopulateFreeListOOM to pass;
- `MaxCachedHint` is always called on a class id for which we have already
  computed the size, but we still recompute `Size(class_id)`. Change the
  prototype of the function to work on sizes instead of class ids. This also
  allows us to get rid of the `kBatchClassID` special case. Update the callers
  accordingly;
- `InitCache` and `Drain` will start iterating at index 1: index 0 contents are
  unused and can safely be left to be 0. Plus we do not pay the cost of going
  through an `UNLIKELY` in `MaxCachedHint`, and touching memory that is
  otherwise not used;
- `const` some variables in the areas modified;
- Remove an spurious extra line at the end of a file.

Reviewers: alekseyshl, tl0gic, dberris

Reviewed By: alekseyshl, dberris

Subscribers: dberris, kubamracek, delcypher, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D43088

llvm-svn: 324906

6 years ago[X86][AVX512] Add missing scheduling class tag for KMOVB/KMOVW/KMOVD/KMOVQ moves...
Simon Pilgrim [Mon, 12 Feb 2018 16:59:04 +0000 (16:59 +0000)]
[X86][AVX512] Add missing scheduling class tag for KMOVB/KMOVW/KMOVD/KMOVQ moves/loads/stores.

We only tagged it with the itinerary class, so completeness checks were erroneously passed (PR35639).

llvm-svn: 324905

6 years ago[OpenMP][libomptarget] Enable the compilation of multiple bc libraries for runtime...
Gheorghe-Teodor Bercea [Mon, 12 Feb 2018 16:45:20 +0000 (16:45 +0000)]
[OpenMP][libomptarget] Enable the compilation of multiple bc libraries for runtime inlining

Summary:
Different NVIDIA GPUs support different compute capabilities. To enable the inlining of runtime functions and the best performance on different generations of NVIDIA GPUs, a bc library for each compute capability needs to be compiled. The same compiler build will then be usable in conjunction with multiple generations of NVIDIA GPUs.
To differentiate between versions of the same bc lib, the output file name will contain the compute capability ID.
Depends on D14254

Reviewers: Hahnfeld, hfinkel, carlo.bertolli, caomhin, ABataev, grokos

Reviewed By: Hahnfeld, grokos

Subscribers: guansong, mgorny, openmp-commits

Differential Revision: https://reviews.llvm.org/D41724

llvm-svn: 324904

6 years ago[AArch64] Refactor identification of SIMD immediates
Evandro Menezes [Mon, 12 Feb 2018 16:41:41 +0000 (16:41 +0000)]
[AArch64] Refactor identification of SIMD immediates

Get rid of icky goto loops and make the code easier to maintain (NFC).

Differential revision: https://reviews.llvm.org/D42723

llvm-svn: 324903

6 years agoAdd Invalid-note test negllected in R324673,324674,324675,324676
Erich Keane [Mon, 12 Feb 2018 16:24:08 +0000 (16:24 +0000)]
Add Invalid-note test negllected in R324673,324674,324675,324676

llvm-svn: 324902

6 years ago[X86][AVX512] Add missing scheduling class tag for VMOVQ/VMOVHLPS/VMOVLHPS/VMOVHPD...
Simon Pilgrim [Mon, 12 Feb 2018 16:18:36 +0000 (16:18 +0000)]
[X86][AVX512] Add missing scheduling class tag for VMOVQ/VMOVHLPS/VMOVLHPS/VMOVHPD/VMOVHPS/VMOVLPD/VMOVLPS

Tag AVX512 variants to match SSE/AVX originals.

We only tagged it with the itinerary class, so completeness checks were erroneously passed (PR35639).

llvm-svn: 324901

6 years agoRe-commit r324490: [DebugInfo] Improvements to representation of enumeration types...
Momchil Velikov [Mon, 12 Feb 2018 16:12:52 +0000 (16:12 +0000)]
Re-commit r324490: [DebugInfo] Improvements to representation of enumeration types (PR36168)

Differential revision: https://reviews.llvm.org/D42736

llvm-svn: 324900

6 years agoRe-commit r324489: [DebugInfo] Improvements to representation of enumeration types...
Momchil Velikov [Mon, 12 Feb 2018 16:10:09 +0000 (16:10 +0000)]
Re-commit r324489: [DebugInfo] Improvements to representation of enumeration types (PR36168)

Differential Revision: https://reviews.llvm.org/D42734

llvm-svn: 324899

6 years ago[X86] Tag CET-IBT instruction scheduler classes
Simon Pilgrim [Mon, 12 Feb 2018 15:57:00 +0000 (15:57 +0000)]
[X86] Tag CET-IBT instruction scheduler classes

llvm-svn: 324898

6 years ago[X86][MMX] Add missing scheduling class tag for EMMS/FEMMS
Simon Pilgrim [Mon, 12 Feb 2018 15:52:59 +0000 (15:52 +0000)]
[X86][MMX] Add missing scheduling class tag for EMMS/FEMMS

We only tagged it with the itinerary class, so completeness checks were erroneously passed (PR35639).

AMD targets can perform these a lot quicker than WriteMicrocoded so will need an override in the models.

llvm-svn: 324897

6 years ago[clang-format] Fix comment indentation in text protos
Krasimir Georgiev [Mon, 12 Feb 2018 15:49:09 +0000 (15:49 +0000)]
[clang-format] Fix comment indentation in text protos

Summary: This patch fixes a bug where the comment indent of comments in text protos gets messed up because by default paren states get created with AlignColons = true (which makes snese for ObjC).

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43194

llvm-svn: 324896

6 years agoWhile implementing P0777 - preventing unnecessary decay, I found some non-public...
Marshall Clow [Mon, 12 Feb 2018 15:41:25 +0000 (15:41 +0000)]
While implementing P0777 - preventing unnecessary decay, I found some non-public uses of decay that could be replaced by __uncvref. NFC intented

llvm-svn: 324895

6 years ago[NFC] Fix comment of class InstrStage
Krzysztof Parzyszek [Mon, 12 Feb 2018 15:02:49 +0000 (15:02 +0000)]
[NFC] Fix comment of class InstrStage

Patch by Wei-Ren Chen.

Differential Revision: https://reviews.llvm.org/D42905

llvm-svn: 324894

6 years ago[SLP] Take user instructions cost into consideration in insertelement vectorization.
Alexey Bataev [Mon, 12 Feb 2018 14:54:48 +0000 (14:54 +0000)]
[SLP] Take user instructions cost into consideration in insertelement vectorization.

Summary:
For better vectorization result we should take into consideration the
cost of the user insertelement instructions when we try to
vectorize sequences that build the whole vector. I.e. if we have the
following scalar code:
```
<Scalar code>
insertelement <ScalarCode>, ...
```
we should consider the cost of the last `insertelement ` instructions as
the cost of the scalar code.

Reviewers: RKSimon, spatel, hfinkel, mkuper

Subscribers: javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D42657

llvm-svn: 324893

6 years ago[AArch64] Improve v8.1-A code-gen for atomic load-subtract
Oliver Stannard [Mon, 12 Feb 2018 14:22:03 +0000 (14:22 +0000)]
[AArch64] Improve v8.1-A code-gen for atomic load-subtract

Armv8.1-A added an atomic load-add instruction, but not a load-subtract
instruction. Our current code-generation for atomic load-subtract always
inserts a NEG instruction to negate it's argument, even if it could be
folded into a constant or another instruction.

This adds lowering early in selection DAG to convert a load-subtract
operation into a subtract and a load-add, allowing the normal DAG
optimisations to work on it.

I've left the old tablegen patterns in because they are still needed for
global isel.

Some of the tests in this patch are copied from D35375 by Chad Rosier (which
was abandoned).

Differential revision: https://reviews.llvm.org/D42477

llvm-svn: 324892

6 years ago[InstCombine] various clean-ups for commonIDivTransforms; NFC
Sanjay Patel [Mon, 12 Feb 2018 14:14:56 +0000 (14:14 +0000)]
[InstCombine] various clean-ups for commonIDivTransforms; NFC

llvm-svn: 324891

6 years agoAllow the NS, CF, and ObjC attributes to be used with -fdouble-square-bracket-attribu...
Aaron Ballman [Mon, 12 Feb 2018 13:38:25 +0000 (13:38 +0000)]
Allow the NS, CF, and ObjC attributes to be used with -fdouble-square-bracket-attributes. The syntactic locations for such attributes on ObjC constructs have been specifically chosen to follow the GNU attribute syntactic locations.

llvm-svn: 324890

6 years agoTest commit: reformat comment
Nicholas Wilson [Mon, 12 Feb 2018 13:17:09 +0000 (13:17 +0000)]
Test commit: reformat comment

llvm-svn: 324889

6 years ago[clangd] Log all ignored diagnostics.
Ilya Biryukov [Mon, 12 Feb 2018 12:48:51 +0000 (12:48 +0000)]
[clangd] Log all ignored diagnostics.

Summary:
To aid debugging failures and crashes.
Only part of ignored diagnostics was logged before, now we log all of
them.

Reviewers: ioeric, hokein, sammccall

Reviewed By: hokein

Subscribers: klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43123

llvm-svn: 324888

6 years agoRevert r324835 "[X86] Reduce Store Forward Block issues in HW"
Hans Wennborg [Mon, 12 Feb 2018 12:43:39 +0000 (12:43 +0000)]
Revert r324835 "[X86] Reduce Store Forward Block issues in HW"

It asserts building Chromium; see PR36346.

(This also reverts the follow-up r324836.)

> If a load follows a store and reloads data that the store has written to memory, Intel microarchitectures can in many cases forward the data directly from the store to the load, This "store forwarding" saves cycles by enabling the load to directly obtain the data instead of accessing the data from cache or memory.
> A "store forward block" occurs in cases that a store cannot be forwarded to the load. The most typical case of store forward block on Intel Core microarchiticutre that a small store cannot be forwarded to a large load.
> The estimated penalty for a store forward block is ~13 cycles.
>
> This pass tries to recognize and handle cases where "store forward block" is created by the compiler when lowering memcpy calls to a sequence
> of a load and a store.
>
> The pass currently only handles cases where memcpy is lowered to XMM/YMM registers, it tries to break the memcpy into smaller copies.
> breaking the memcpy should be possible since there is no atomicity guarantee for loads and stores to XMM/YMM.

llvm-svn: 324887

6 years ago[clang-move] Fix the incorrect expansion end location.
Haojian Wu [Mon, 12 Feb 2018 12:26:12 +0000 (12:26 +0000)]
[clang-move] Fix the incorrect expansion end location.

Summary:
Before the fix, if clang-move decides to move the following macro statement, it only moves the first line `DEFINE(A,`.

```
DEFINE(A,
       B);
```

Reviewers: ioeric

Reviewed By: ioeric

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D43174

llvm-svn: 324886

6 years ago[mips] Fix 'l' constraint handling for types smaller than 32 bits
Simon Atanasyan [Mon, 12 Feb 2018 12:21:55 +0000 (12:21 +0000)]
[mips] Fix 'l' constraint handling for types smaller than 32 bits

In case of correct using of the 'l' constraint llvm now generates valid
code; otherwise it shows an error message. Initially these triggers an
assertion.

This commit is the same as r324869 with fixed the test's file name.

llvm-svn: 324885

6 years agoASan+operator new[]: Add an option for more thorough operator new[] cookie poisoning
Filipe Cabecinhas [Mon, 12 Feb 2018 11:49:02 +0000 (11:49 +0000)]
ASan+operator new[]: Add an option for more thorough operator new[] cookie poisoning

Summary:
Right now clang is skipping array cookie poisoning for any operator
new[] which is not part of the set of replaceable global allocation
functions.

This commit adds a flag to tell clang to poison all operator new[]
cookies.

A previous review was poisoning all array cookies unconditionally, but
there is an edge case which would stop working under ASan (a custom
operator new[] saves whatever pointer it returned, and then accesses
it).

This newer revision adds a command line argument to toggle this feature.

Original revision: https://reviews.llvm.org/D41301
Compiler-rt test revision with an explanation of the edge case: https://reviews.llvm.org/D41664

Reviewers: rjmccall, kcc, rsmith

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D43013

llvm-svn: 324884

6 years ago[clangd] Remove codeComplete that returns std::future<>
Ilya Biryukov [Mon, 12 Feb 2018 11:37:28 +0000 (11:37 +0000)]
[clangd] Remove codeComplete that returns std::future<>

Summary:
It was deprecated and callback version and is used everywhere.
Only changes to the testing code were needed.

Reviewers: hokein, ioeric, sammccall

Reviewed By: sammccall

Subscribers: mgorny, klimek, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D43068

llvm-svn: 324883

6 years ago[mips] Revert rL324869
Simon Atanasyan [Mon, 12 Feb 2018 11:15:37 +0000 (11:15 +0000)]
[mips] Revert rL324869

This commit adds inlineasm-cnstrnt-bad-l.ll which is clashing
with inlineasm-cnstrnt-bad-L.ll on case insensitive file systems.

llvm-svn: 324882

6 years ago[LoopInterchange] Simplify splitInnerLoopHeader logic (NFC).
Florian Hahn [Mon, 12 Feb 2018 11:10:58 +0000 (11:10 +0000)]
[LoopInterchange] Simplify splitInnerLoopHeader logic (NFC).

We can use SplitBlock for both cases, which makes the code slightly
simpler and updates both LoopInfo and the dominator tree.

llvm-svn: 324881

6 years ago[CodeGen] Add a -trap-unreachable option for debugging
David Green [Mon, 12 Feb 2018 11:06:27 +0000 (11:06 +0000)]
[CodeGen] Add a -trap-unreachable option for debugging

Add a common -trap-unreachable option, similar to the target
specific hexagon equivalent, which has been replaced. This
turns unreachable instructions into traps, which is useful for
debugging.

Differential Revision: https://reviews.llvm.org/D42965

llvm-svn: 324880

6 years ago[libomptarget] Fix detection of CUDA stubs library
Jonas Hahnfeld [Mon, 12 Feb 2018 11:01:56 +0000 (11:01 +0000)]
[libomptarget] Fix detection of CUDA stubs library

CUDA_LIBRARIES contains additional linker arguments since CMake 3.3
which breakes the current way of finding the stubs library.

llvm-svn: 324879

6 years ago[CUDA] Add option to generate relocatable device code
Jonas Hahnfeld [Mon, 12 Feb 2018 10:46:45 +0000 (10:46 +0000)]
[CUDA] Add option to generate relocatable device code

As a first step, pass '-c/--compile-only' to ptxas so that it
doesn't complain about references to external function. This
will successfully generate object files, but they won't work
at runtime because the registration routines need to adapted.

Differential Revision: https://reviews.llvm.org/D42921

llvm-svn: 324878

6 years ago[CUDA] Fix test cuda-external-tools.cu
Jonas Hahnfeld [Mon, 12 Feb 2018 10:46:34 +0000 (10:46 +0000)]
[CUDA] Fix test cuda-external-tools.cu

This didn't verify the CHECK prefix before!

Differential Revision: https://reviews.llvm.org/D42920

llvm-svn: 324877

6 years ago[gtest] Support raw_ostream printing functions more comprehensively.
Sam McCall [Mon, 12 Feb 2018 10:20:09 +0000 (10:20 +0000)]
[gtest] Support raw_ostream printing functions more comprehensively.

Summary:
These are functions like operator<<(raw_ostream&, Foo).

Previously these were only supported for messages. In the assertion
  EXPECT_EQ(A, B) << C;
the local modifications would explicitly try to use raw_ostream printing for C.
However A and B would look for a std::ostream printing function, and often fall
back to gtest's default "168 byte object <00 01 FE 42 ...>".

This patch pulls out the raw_ostream support into a new header under `custom/`.

I changed the mechanism: instead of a convertible stream, we wrap the printed
value in a proxy object to allow it to be sent to a std::ostream.
I think the new way is clearer.

I also changed the policy: we prefer raw_ostream printers over std::ostream
ones. This is because the fallback printers are defined using std::ostream,
while all the raw_ostream printers should be "good".

Reviewers: ilya-biryukov, chandlerc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D43091

llvm-svn: 324876

6 years agoSkip TestTargetXMLArch on non-darwin OSs
Pavel Labath [Mon, 12 Feb 2018 09:46:06 +0000 (09:46 +0000)]
Skip TestTargetXMLArch on non-darwin OSs

This test uses XML packets, but libxml is an optional dependency of
lldb, and this test fails if it is not present.

I'm leaving this enabled on mac, as thats the only platform that's
likely to have libxml always available, but ideally we should have a way
to skip this based on build configuration. I'll see if I can whip
something like that up soon, but for the time being, this unblocks the
buildbots.

llvm-svn: 324870

6 years ago[mips] Fix 'l' constraint handling for types smaller than 32 bits
Simon Atanasyan [Mon, 12 Feb 2018 07:51:21 +0000 (07:51 +0000)]
[mips] Fix 'l' constraint handling for types smaller than 32 bits

In case of correct using of the 'l' constraint llvm now generates valid
code; otherwise it shows an error message. Initially these triggers an
assertion.

llvm-svn: 324869