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7 years agoFix DynamicLibraryTest.cpp on FreeBSD and NetBSD
Dimitry Andric [Sun, 14 May 2017 18:35:38 +0000 (18:35 +0000)]
Fix DynamicLibraryTest.cpp on FreeBSD and NetBSD

Summary:

After rL301562, on FreeBSD the DynamicLibrary unittests fail, because
the test uses getMainExecutable("DynamicLibraryTests", Ptr), and since
the path does not contain any slashes, retrieving the main executable
will not work.

Reimplement getMainExecutable() for FreeBSD and NetBSD using sysctl(3),
which is more reliable than fiddling with relative or absolute paths.

Also add retrieval of the original argv[] from the GoogleTest framework,
to use as a fallback for other OSes.

Reviewers: emaste, marsupial, hans, krytarowski

Reviewed By: krytarowski

Subscribers: krytarowski, llvm-commits

Differential Revision: https://reviews.llvm.org/D33171

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303015 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[COFF] Gracefully handle empty .drectve sections
Shoaib Meenai [Sun, 14 May 2017 18:34:56 +0000 (18:34 +0000)]
[COFF] Gracefully handle empty .drectve sections

Running `llvm-readobj -coff-directives msvcrt.lib` resulted in this error:

    Invalid data was encountered while parsing the file

This happened because some of the object files in the archive have empty
`.drectve` sections. These empty sections result in a `parse_failed` error being
returned from `COFFObjectFile::getSectionContents()`, which in turn caused
`llvm-readobj` to stop. With this change, `getSectionContents` now returns
success, and like before the resulting array is empty.

Patch by Dave Lee.

Differential Revision: https://reviews.llvm.org/D32652

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303014 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][XOP] XOP's general v16i8 shifts will be used instead of v8i16 shift + mask.
Simon Pilgrim [Sun, 14 May 2017 17:59:46 +0000 (17:59 +0000)]
[X86][XOP] XOP's general v16i8 shifts will be used instead of v8i16 shift + mask.

Tweak cost model to match what lowering actually does.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303013 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][SSE] Account for cost of extract/insert of v32i8 vector shifts
Simon Pilgrim [Sun, 14 May 2017 17:36:07 +0000 (17:36 +0000)]
[X86][SSE] Account for cost of extract/insert of v32i8 vector shifts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303012 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[StringExtras] Add llvm::to_integer.
Zachary Turner [Sun, 14 May 2017 17:11:05 +0000 (17:11 +0000)]
[StringExtras] Add llvm::to_integer.

This is a very thin wrapper around StringRef::getAsInteger.
It serves three purposes.

1) It allows a cleaner syntax when you have something other than
   a StringRef - for example, a std::string or an llvm::SmallString.
   Previously, in this case you would have to write something like:
      StringRef(MyStr).getAsInteger(0, Result)
   by explicitly constructing a temporary StringRef.  This can be
   done implicitly however with the new function by just writing:
      to_integer(MyStr, ...).
2) Correcting the travesty that is getAsInteger's return value.
   This function returns true on success, and false on failure.
   While this may cause confusion with people familiar with the
   getAsInteger API, there seems to be widespread agreement that
   the return semantics of getAsInteger was a mistake.
3) It allows the Radix to be deduced as a default argument by
   putting it last in the parameter list.  Most uses of getAsInteger
   pass 0 for the first argument.  With this syntax it can just be
   omitted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303011 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][XOP] Account for cost of extract/insert of 256-bit vector shifts
Simon Pilgrim [Sun, 14 May 2017 13:38:53 +0000 (13:38 +0000)]
[X86][XOP] Account for cost of extract/insert of 256-bit vector shifts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303010 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][AVX] Allow 32-bit targets to peek through subvectors to extract constant splats...
Simon Pilgrim [Sun, 14 May 2017 11:46:26 +0000 (11:46 +0000)]
[X86][AVX] Allow 32-bit targets to peek through subvectors to extract constant splats for vXi64 shifts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303009 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][AVX] Add additional 32-bit target vector shift tests
Simon Pilgrim [Sun, 14 May 2017 11:13:03 +0000 (11:13 +0000)]
[X86][AVX] Add additional 32-bit target vector shift tests

Shows issue with 32-bits not being able to peek through subvectors to extract constant splats

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303008 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoupdate of the url
Sylvestre Ledru [Sun, 14 May 2017 07:55:01 +0000 (07:55 +0000)]
update of the url

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303005 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstSimplify] Add patterns for folding (A & B) | (~A ^ B) -> (~A ^ B) and its commut...
Craig Topper [Sun, 14 May 2017 07:54:43 +0000 (07:54 +0000)]
[InstSimplify] Add patterns for folding (A & B) | (~A ^ B) -> (~A ^ B) and its commuted variants.

We already had (A & ~B) | (A ^ B), but we missed the cases where the not was part of the xor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303004 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agofoo
Craig Topper [Sun, 14 May 2017 07:54:40 +0000 (07:54 +0000)]
foo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303003 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[BasicAA] Alphabetize includes. NFC
Craig Topper [Sun, 14 May 2017 06:18:34 +0000 (06:18 +0000)]
[BasicAA] Alphabetize includes. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303002 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRenable test that was disabled due to cost analysis
Xinliang David Li [Sun, 14 May 2017 02:58:39 +0000 (02:58 +0000)]
Renable test that was disabled due to cost analysis

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303000 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix test failure on windows -- do not return deleted func
Xinliang David Li [Sun, 14 May 2017 02:54:02 +0000 (02:54 +0000)]
Fix test failure on windows -- do not return deleted func

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302999 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[llvm-pdbdump] Add the option to sort functions and data.
Zachary Turner [Sun, 14 May 2017 01:13:40 +0000 (01:13 +0000)]
[llvm-pdbdump] Add the option to sort functions and data.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302998 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[SelectionDAG] Added support for EXTRACT_SUBVECTOR/CONCAT_VECTORS demandedelts in...
Simon Pilgrim [Sat, 13 May 2017 22:10:58 +0000 (22:10 +0000)]
[SelectionDAG] Added support for EXTRACT_SUBVECTOR/CONCAT_VECTORS demandedelts in ComputeNumSignBits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302997 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd missing files
Peter Collingbourne [Sat, 13 May 2017 22:10:13 +0000 (22:10 +0000)]
Add missing files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302996 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMove lib/LibDriver -> lib/ToolDrivers/llvm-lib. NFCI.
Peter Collingbourne [Sat, 13 May 2017 22:06:46 +0000 (22:06 +0000)]
Move lib/LibDriver -> lib/ToolDrivers/llvm-lib. NFCI.

This reorganisation prevents us from cluttering up the top-level lib directory
with more driver libraries such as llvm-dlltool (see D29892).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302995 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][SSE] Test showing missing EXTRACT_SUBVECTOR/CONCAT_VECTORS demandedelts support...
Simon Pilgrim [Sat, 13 May 2017 21:50:18 +0000 (21:50 +0000)]
[X86][SSE] Test showing missing EXTRACT_SUBVECTOR/CONCAT_VECTORS demandedelts support in ComputeNumSignBits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302994 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[SelectionDAG] Add VECTOR_SHUFFLE support to ComputeNumSignBits
Simon Pilgrim [Sat, 13 May 2017 19:57:10 +0000 (19:57 +0000)]
[SelectionDAG] Add VECTOR_SHUFFLE support to ComputeNumSignBits

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302993 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][SSE] Test showing inability of ComputeNumSignBits to resolve shuffles
Simon Pilgrim [Sat, 13 May 2017 17:41:07 +0000 (17:41 +0000)]
[X86][SSE] Test showing inability of ComputeNumSignBits to resolve shuffles

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302992 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ValueTracking] Remove const_casts on several calls to computeKnownBits and ComputeSi...
Craig Topper [Sat, 13 May 2017 17:22:16 +0000 (17:22 +0000)]
[ValueTracking] Remove const_casts on several calls to computeKnownBits and ComputeSignBit. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302991 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMSan: Mark MemorySanitizer tests that use x86 intrinsics as REQUIRES: x86
Justin Bogner [Sat, 13 May 2017 16:24:38 +0000 (16:24 +0000)]
MSan: Mark MemorySanitizer tests that use x86 intrinsics as REQUIRES: x86

Tests that use target intrinsics are inherently target specific. Mark
them as such.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302990 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[x86, SSE] AVX1 PR28129 (256-bit all-ones rematerialization)
Simon Pilgrim [Sat, 13 May 2017 13:42:35 +0000 (13:42 +0000)]
[x86, SSE] AVX1 PR28129 (256-bit all-ones rematerialization)

Further perf tests on Jaguar indicate that:

vxorps  %ymm0, %ymm0, %ymm0
vcmpps  $15, %ymm0, %ymm0, %ymm0

is consistently faster (by about 9%) than:

vpcmpeqd  %xmm0, %xmm0, %xmm0
vinsertf128  $1, %xmm0, %ymm0, %ymm0

Testing equivalent code on a SandyBridge (E5-2640) puts it slightly (~3%) faster as well.

Committed on behalf of @dtemirbulatov

Differential Revision: https://reviews.llvm.org/D32416

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302989 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LoopOptimizer][Fix]PR32859, PR24738
Simon Pilgrim [Sat, 13 May 2017 13:25:57 +0000 (13:25 +0000)]
[LoopOptimizer][Fix]PR32859, PR24738

The Loop vectorizer pass introduced undef value while it is fixing output of LCSSA form.
Here it is:

before: %e.0.ph = phi i32 [ 0, %for.inc.2.i ]
after: %e.0.ph = phi i32 [ 0, %for.inc.2.i ], [ undef, %middle.block ]

and after this change we have:

%e.0.ph = phi i32 [ 0, %for.inc.2.i ]
%e.0.ph = phi i32 [ 0, %for.inc.2.i ], [ 0, %middle.block ]

Committed on behalf of @dtemirbulatov

Differential Revision: https://reviews.llvm.org/D33055

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302988 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoThis reverts r302984
Vivek Pandya [Sat, 13 May 2017 10:59:05 +0000 (10:59 +0000)]
This reverts r302984

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302985 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSimplify MIR Output used for Codegen Testing
Vivek Pandya [Sat, 13 May 2017 08:55:43 +0000 (08:55 +0000)]
Simplify MIR Output used for Codegen Testing

- MIRYamlMapping: Default value provided for fields which have optional
mappings. Implemented == operators for required classes. When a field's value is
same as default value specified YAML IO class will not print it.

- MIRPrinter: Above mentioned behaviour is not on by default. If -simplify-mir
option not specified, then make yaml::Output to print fields with default values
too.

Differential Revision: https://reviews.llvm.org/D32304

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302984 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[APInt] Use Lo_32/Hi_32/Make_64 in a few more places in the divide code. NFCI
Craig Topper [Sat, 13 May 2017 07:14:17 +0000 (07:14 +0000)]
[APInt] Use Lo_32/Hi_32/Make_64 in a few more places in the divide code. NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302983 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[InstCombine] Prevent InstCombine from triggering an extra iteration if something...
Craig Topper [Sat, 13 May 2017 06:56:04 +0000 (06:56 +0000)]
[InstCombine] Prevent InstCombine from triggering an extra iteration if something changed in the initial Worklist creation

Summary:
If the Worklist build causes an IR change this change flag currently factors into the flag for running another iteration of the iteration loop. But only changes during processing should trigger another loop.

This patch captures the worklist creation change flag into the outside the loop flag currently used for DbgDeclares and only sends that flag up to the caller. Rerunning the loop only depends on IC.run() now.

This uses the debug output of InstCombine to determine if one or two iterations run. I couldn't think of a better way to detect it since the second spurious iteration shoudn't make any visible changes. Just wasted computation.

I can do a pre-commit of the test case with the CHECK-NOT as a CHECK if this is an ok way to check this.

This is a subset of D31678 as I'm still not sure how to verify the analysis behavior for that.

Reviewers: davide, majnemer, spatel, chandlerc

Reviewed By: davide

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D32453

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302982 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoConstProp: Split x86 SSE intrinsic tests out of calls.ll
Justin Bogner [Sat, 13 May 2017 05:52:17 +0000 (05:52 +0000)]
ConstProp: Split x86 SSE intrinsic tests out of calls.ll

This allows us to mark this as `REQUIRES: x86`, since it uses x86
target specific intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302980 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoInstCombine: Move tests that use target intrinsics into subdirectories
Justin Bogner [Sat, 13 May 2017 05:39:46 +0000 (05:39 +0000)]
InstCombine: Move tests that use target intrinsics into subdirectories

Tests with target intrinsics are inherently target specific, so it
doesn't actually make sense to run them if we've excluded their
target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302979 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoDisable llvm/test/Transforms/NewGVN/pr32934.ll while Davide is investigating.
NAKAMURA Takumi [Sat, 13 May 2017 03:05:38 +0000 (03:05 +0000)]
Disable llvm/test/Transforms/NewGVN/pr32934.ll while Davide is investigating.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302977 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[NewGVN] XFAIL a flaky test until I find out what's going on.
Davide Italiano [Sat, 13 May 2017 02:45:47 +0000 (02:45 +0000)]
[NewGVN] XFAIL a flaky test until I find out what's going on.

I bet the change is correct but this test seems to expose some underlying
problem that manifest only on some buildbots, and I'm not able to reproduce
locally. Unfortunately I can't debug right now but I don't want to annoy
people with spurious failures, so I'll XFAIL until I can take a look (over
the weekend).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302976 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[APInt] Fix typo in comment. NFC
Craig Topper [Sat, 13 May 2017 00:35:30 +0000 (00:35 +0000)]
[APInt] Fix typo in comment. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302974 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AVR] When lowering Select8/Select16, put newly generated MBBs in the same spot
Dylan McKay [Sat, 13 May 2017 00:22:34 +0000 (00:22 +0000)]
[AVR] When lowering Select8/Select16, put newly generated MBBs in the same spot

Contributed by Dr. Gergő Érdi.

Fixes a bug.

Raised from (https://github.com/avr-rust/rust/issues/49).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302973 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAA: Use generic intrinsics for tests instead of target specific ones
Justin Bogner [Sat, 13 May 2017 00:12:52 +0000 (00:12 +0000)]
AA: Use generic intrinsics for tests instead of target specific ones

Update a few tests to use llvm.masked.load/store instead of arm neon
vector loads and stores, and move the tests that are actually specific
to those arm intrinsics to their own files. This lets us mark the
tests that use target specific intrinsics as requiring those targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302972 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[CodeView] Silence some -Wsign-compare warnings
Justin Bogner [Sat, 13 May 2017 00:11:39 +0000 (00:11 +0000)]
[CodeView] Silence some -Wsign-compare warnings

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302971 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AVR] Remove an unused variable
Dylan McKay [Sat, 13 May 2017 00:00:26 +0000 (00:00 +0000)]
[AVR] Remove an unused variable

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302970 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PartialInlining] Profile based cost analysis
Xinliang David Li [Fri, 12 May 2017 23:41:43 +0000 (23:41 +0000)]
[PartialInlining] Profile based cost analysis

Implemented frequency based cost/saving analysis
and related options.

The pass is now in a state ready to be turne on
in the pipeline (in follow up).

Differential Revision: http://reviews.llvm.org/D32783

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302967 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302964 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302963 91177308-0d34-0410-b5e6-96231b3b80d8

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).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302961 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302957 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302956 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302955 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302953 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302952 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302951 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302950 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302949 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302943 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302942 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302939 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302938 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302937 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302936 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302933 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302931 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302930 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302928 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302927 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302925 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302923 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302922 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302919 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302916 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302911 91177308-0d34-0410-b5e6-96231b3b80d8

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)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302910 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302909 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302908 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302907 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302906 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302905 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302897 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302896 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302894 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302885 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302883 91177308-0d34-0410-b5e6-96231b3b80d8

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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302882 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302878 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302877 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302876 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302867 91177308-0d34-0410-b5e6-96231b3b80d8

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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302863 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoDWARF: Avoid cross-CU references under Fission
David Blaikie [Fri, 12 May 2017 01:13:45 +0000 (01:13 +0000)]
DWARF: Avoid cross-CU references under Fission

Turns out that the Fission/Split DWARF package format (DWP) is currently
insufficient to handle cross-CU (ref_addr) references. So for now,
duplicate any debug info needed in these situations:
* inlined_subroutine's abstract_origin
* inlined variable's abstract_origin
* types

Keep the ref_addr behavior in general, including in the split DWARF
inline debug info that can be emitted into the object files for online
symbolication.
Keep a flag to use the old (ref_addr) behavior for testing ways of
addressing this limitation in the DWP tool (& for those not using DWP
packaging).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302858 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[XRay][lib] Support and temporarily skip over CustomEvent records
Dean Michael Berris [Fri, 12 May 2017 01:06:41 +0000 (01:06 +0000)]
[XRay][lib] Support and temporarily skip over CustomEvent records

Summary:
In D30630 we will start writing custom event records. To avoid breaking
the tools that read the FDR mode records, we skip over these records.
To support these custom event records more effectively, we will have to
expose them in the trace loading API. Those changes will be forthcoming.

Reviewers: kpw, pelikan

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D33032

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302856 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[git-llvm] Fix svn:eol-style issue for one-file patches
Reid Kleckner [Fri, 12 May 2017 00:10:19 +0000 (00:10 +0000)]
[git-llvm] Fix svn:eol-style issue for one-file patches

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302853 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoCallGraph: Remove almost-unused field 'Root'.
Peter Collingbourne [Thu, 11 May 2017 23:59:05 +0000 (23:59 +0000)]
CallGraph: Remove almost-unused field 'Root'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302852 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoChange sample profile writer to make it deterministic.
Dehao Chen [Thu, 11 May 2017 23:43:44 +0000 (23:43 +0000)]
Change sample profile writer to make it deterministic.

Summary: This patch changes the function profile output order to be deterministic. In order to make it easier to understand, hottest functions (with most total samples) is ordered first.

Reviewers: dnovillo, davidxl

Reviewed By: dnovillo

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D33111

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302851 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRestrict call metadata based hotness detection to Sample PGO mode
Teresa Johnson [Thu, 11 May 2017 23:18:05 +0000 (23:18 +0000)]
Restrict call metadata based hotness detection to Sample PGO mode

Summary:
Don't use the metadata on call instructions for determining hotness
unless we are in sample PGO mode, where it is needed because profile
counts are not accurate. In instrumentation mode this is not necessary
and does more harm than good when calls have VP metadata that hasn't
been properly scaled after transformations or dropped after constant
prop based devirtualization (both should be fixed, but we don't need
to do this in the first place for instrumentation PGO).

This required adjusting a number of tests to distinguish between sample
and instrumentation PGO handling, and to add in profile summary metadata
so that getProfileCount can get the summary.

Reviewers: davidxl, danielcdh

Subscribers: aemerson, rengolin, mehdi_amini, Prazek, llvm-commits

Differential Revision: https://reviews.llvm.org/D32877

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302844 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIssue diagnostics when returning FP values on x86_64 without SSE1/2
Reid Kleckner [Thu, 11 May 2017 22:43:02 +0000 (22:43 +0000)]
Issue diagnostics when returning FP values on x86_64 without SSE1/2

Avoid using report_fatal_error, because it will ask the user to file a
bug. If the user attempts to disable SSE on x86_64 and them use floating
point, that's a bug in their code, not a bug in the compiler.

This is just a start. There are other ways to crash the backend in this
configuration, but they should be updated to follow this pattern.

Differential Revision: https://reviews.llvm.org/D27522

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302835 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PPC] Change the register constraint of the first source operand of instruction mtvsr...
Guozhi Wei [Thu, 11 May 2017 22:17:35 +0000 (22:17 +0000)]
[PPC] Change the register constraint of the first source operand of instruction mtvsrdd to g8rc_nox0

According to Power ISA V3.0 document, the first source operand of mtvsrdd is constant 0 if r0 is specified. So the corresponding register constraint should be g8rc_nox0.

This bug caused wrong output generated by 401.bzip2 when -mcpu=power9 and fdo are specified.

Differential Revision: https://reviews.llvm.org/D32880

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302834 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[GISel]: Remove unused lambda captures. NFC
Aditya Nandakumar [Thu, 11 May 2017 21:56:51 +0000 (21:56 +0000)]
[GISel]: Remove unused lambda captures. NFC

https://reviews.llvm.org/D33085

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302831 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoDecrease inlinecold-threshold to 45
Easwaran Raman [Thu, 11 May 2017 21:36:28 +0000 (21:36 +0000)]
Decrease inlinecold-threshold to 45

I ran the test-suite (including SPEC 2006) in PGO mode comparing cold
thresholds of 225 and 45. Here are some stats on the text size:

Out of 904 tests that ran, 197 see a change in text size. The average
text size reduction (of all the 904 binaries) is 1.07%. Of the 197
binaries, 19 see a text size increase, as high as 18%, but most of them
are small single source benchmarks. There are 3 multisource benchmarks
with a >0.5% size increase (0.7, 1.3 and 2.1 are their % increases). On
the other side of the spectrum, 31 benchmarks see >10% size reduction
and 6 of them are MultiSource.

I haven't run the test-suite with other values of inlinecold-threshold.
Since we have a cold callsite threshold of 45, I picked this value.

Differential revision: https://reviews.llvm.org/D33106

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302829 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoDe-virtualize TerminatorInst successor accessors
Reid Kleckner [Thu, 11 May 2017 21:26:55 +0000 (21:26 +0000)]
De-virtualize TerminatorInst successor accessors

Use the same switch technique to eliminate virtual successor accessors
from TerminatorInst. Extracted from D31261.

NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302827 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoDe-virtualize GlobalValue
Reid Kleckner [Thu, 11 May 2017 21:14:29 +0000 (21:14 +0000)]
De-virtualize GlobalValue

The erase/remove from parent methods now use a switch table to remove
themselves from their appropriate parent ilist.

The copyAttributesFrom method is now completely non-virtual, since we
only ever copy attributes from a global of the appropriate type.

Pre-requisite to de-virtualizing Value to save a vptr
(https://reviews.llvm.org/D31261).

NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302823 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AArch64][MachineCombine] Fold FNMUL+FSUB -> FNMADD.
Chad Rosier [Thu, 11 May 2017 20:07:24 +0000 (20:07 +0000)]
[AArch64][MachineCombine] Fold FNMUL+FSUB -> FNMADD.

Differential Revision: http://reviews.llvm.org/D33101.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302822 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AMDGPU] Placate unused variable warning in release builds.
Davide Italiano [Thu, 11 May 2017 19:58:52 +0000 (19:58 +0000)]
[AMDGPU] Placate unused variable warning in release builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302821 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[MSP430] Generate EABI-compliant libcalls
Vadzim Dambrouski [Thu, 11 May 2017 19:56:14 +0000 (19:56 +0000)]
[MSP430] Generate EABI-compliant libcalls

Updates the MSP430 target to generate EABI-compatible libcall names.
As a byproduct, adjusts the hardware multiplier options available in
the MSP430 target, adds support for promotion of the ISD::MUL operation
for 8-bit integers, and correctly marks R11 as used by call instructions.

Patch by Andrew Wygle.

Differential Revision: https://reviews.llvm.org/D32676

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302820 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LiveVariables] Switch Kill/Defs sets to be DenseSet(s).
Davide Italiano [Thu, 11 May 2017 19:37:43 +0000 (19:37 +0000)]
[LiveVariables] Switch Kill/Defs sets to be DenseSet(s).

The testcase in PR32984 shows a non linear compile time increase
after a change that made the LoopUnroll pass more aggressive
(increasing the threshold).

My profiling shows all the time of PHI elimination goes to
llvm::LiveVariables::addNewBlock. This is because we keep
Defs/Kills registers in a SmallSet and vfind(const T &V); is O(N).

Switching to a DenseSet reduces the time spent in the pass from
297 seconds to 97 seconds. Profiling still shows a lot of time is
spent iterating the data structure, so I guess there's room for
improvement.

Dan tells me GCC uses real set operations for live registers and
it takes no-time on this testcase. Matthias points out we might
want to switch all this to LiveIntervalAnalysis so it's not entirely
sure if a rewrite is worth it.

Differential Revision:  https://reviews.llvm.org/D33088

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302819 91177308-0d34-0410-b5e6-96231b3b80d8