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8 years agoAdd backend dignostic printer for unsupported features
Oliver Stannard [Thu, 28 Jan 2016 10:07:27 +0000 (10:07 +0000)]
Add backend dignostic printer for unsupported features

Re-commit of r258951 after fixing layering violation.

The related LLVM patch adds a backend diagnostic type for reporting
unsupported features, this adds a printer for them to clang.

In the case where debug location information is not available, I've
changed the printer to report the location as the first line of the
function, rather than the closing brace, as the latter does not give the
user any information. This also affects optimisation remarks.

Differential Revision: http://reviews.llvm.org/D16590

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259035 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][SSE] Move setTargetShuffleZeroElements closer to getTargetShuffleMask. NFCI.
Simon Pilgrim [Thu, 28 Jan 2016 09:45:01 +0000 (09:45 +0000)]
[X86][SSE] Move setTargetShuffleZeroElements closer to getTargetShuffleMask. NFCI.

Keep target shuffle mask helper functions closer together.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259034 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMinor code cleanups. NFC.
Junmo Park [Thu, 28 Jan 2016 09:42:39 +0000 (09:42 +0000)]
Minor code cleanups. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259033 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][AVX512] small fix in ptestm intrinsics
Asaf Badouh [Thu, 28 Jan 2016 08:33:22 +0000 (08:33 +0000)]
[X86][AVX512] small fix in ptestm intrinsics
move ptestm{q|d} intrinsics from patterns form (in td file) to the intrinsics table

Differential Revision: http://reviews.llvm.org/D16633

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259029 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoValueTracking: Use fixed array for assumption exclude set in Query.
Matthias Braun [Thu, 28 Jan 2016 06:29:33 +0000 (06:29 +0000)]
ValueTracking: Use fixed array for assumption exclude set in Query.

The Query structure is constructed often and is relevant for compiletime
performance. We can replace the SmallPtrSet for assumption exclusions in
this structure with a fixed size array because we know the maximum
number of elements.  This improves typical clang -O3 -emit-llvm compiletime
by 1.2% in my measurements.

Differential Revision: http://reviews.llvm.org/D16204

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259025 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[DAGCombiner] Don't add volatile or indexed stores to ChainedStores
Junmo Park [Thu, 28 Jan 2016 06:23:33 +0000 (06:23 +0000)]
[DAGCombiner] Don't add volatile or indexed stores to ChainedStores

Summary:
findBetterNeighborChains does not handle volatile or indexed stores.
However, it did not check when adding stores to ChainedStores.

Reviewers: arsenm

Differential Revision: http://reviews.llvm.org/D16463

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259024 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSmallPtrSet: Add missing include
Matthias Braun [Thu, 28 Jan 2016 05:09:01 +0000 (05:09 +0000)]
SmallPtrSet: Add missing include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259021 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoWebAssembly: fix build
JF Bastien [Thu, 28 Jan 2016 05:05:17 +0000 (05:05 +0000)]
WebAssembly: fix build

r259016 didn't also revert r258957 which broken the WebAssembly build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259020 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSmallPtrSet: Make destructor available for inlining
Matthias Braun [Thu, 28 Jan 2016 04:49:14 +0000 (04:49 +0000)]
SmallPtrSet: Make destructor available for inlining

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259019 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSmallPtrSet: Share some code between copy/move constructor/assignment operator
Matthias Braun [Thu, 28 Jan 2016 04:49:11 +0000 (04:49 +0000)]
SmallPtrSet: Share some code between copy/move constructor/assignment operator

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259018 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSmallPtrSet: Remove trailing whitespace, fix indentation
Matthias Braun [Thu, 28 Jan 2016 04:49:07 +0000 (04:49 +0000)]
SmallPtrSet: Remove trailing whitespace, fix indentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259017 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert r258951 (and r258950), "Refactor backend diagnostics for unsupported features"
NAKAMURA Takumi [Thu, 28 Jan 2016 04:41:32 +0000 (04:41 +0000)]
Revert r258951 (and r258950), "Refactor backend diagnostics for unsupported features"

It broke layering violation in LLVMIR.

clang r258950 "Add backend dignostic printer for unsupported features"
llvm  r258951 "Refactor backend diagnostics for unsupported features"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259016 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Don't stackify a register def past a get_local use in the same tree.
Dan Gohman [Thu, 28 Jan 2016 03:59:09 +0000 (03:59 +0000)]
[WebAssembly] Don't stackify a register def past a get_local use in the same tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259013 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMinor code formatting cleanup. NFC.
Junmo Park [Thu, 28 Jan 2016 01:23:18 +0000 (01:23 +0000)]
Minor code formatting cleanup. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259010 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Enhanced register stackification
Dan Gohman [Thu, 28 Jan 2016 01:22:44 +0000 (01:22 +0000)]
[WebAssembly] Enhanced register stackification

This patch revamps the RegStackifier pass with a new tree traversal mechanism,
enabling three major new features:

 - Stackification of values with multiple uses, using the result value of set_local
 - More aggressive stackification of instructions with side effects
 - Reordering operands in commutative instructions to enable more stackification.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259009 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMinor style cleanup of CFLAA. NFC.
George Burgess IV [Thu, 28 Jan 2016 00:54:01 +0000 (00:54 +0000)]
Minor style cleanup of CFLAA. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259008 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoless indenting; NFCI
Sanjay Patel [Thu, 28 Jan 2016 00:03:16 +0000 (00:03 +0000)]
less indenting; NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@259002 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[TTI] Add getPrefetchDistance from PPCLoopDataPrefetch, NFC
Adam Nemet [Wed, 27 Jan 2016 22:21:25 +0000 (22:21 +0000)]
[TTI] Add getPrefetchDistance from PPCLoopDataPrefetch, NFC

This patch is part of the work to make PPCLoopDataPrefetch
target-independent
(http://thread.gmane.org/gmane.comp.compilers.llvm.devel/92758).

As it was discussed in the above thread, getPrefetchDistance is
currently using instruction count which may change in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258995 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoTweak unnamed label syntax in textual IR for easier matching in tests.
Evgeniy Stepanov [Wed, 27 Jan 2016 21:53:08 +0000 (21:53 +0000)]
Tweak unnamed label syntax in textual IR for easier matching in tests.

Change the unnamed label comments like
  ; <label>:8  ; preds = %1
to
  ; <label>:8:  ; preds = %1

This way lit tests can match [[LABEL]]: in both asserts and no-asserts builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258993 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Implement byval arguments
Derek Schuff [Wed, 27 Jan 2016 21:17:39 +0000 (21:17 +0000)]
[WebAssembly] Implement byval arguments

Summary:
Just does the simple allocation of a stack object and passes
a pointer to the callee.

Differential Revision: http://reviews.llvm.org/D16610

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258989 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[utils] Add windows support to update_llc_test_checks.py
Simon Pilgrim [Wed, 27 Jan 2016 21:13:18 +0000 (21:13 +0000)]
[utils] Add windows support to update_llc_test_checks.py

Strip dos line endings from llc generated files to allow the regex patterns to match them.

Ensure updated *.ll files are generated with unix style line endings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258987 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[llvm-nm] Remove redundant check for file validity.
Davide Italiano [Wed, 27 Jan 2016 20:27:44 +0000 (20:27 +0000)]
[llvm-nm] Remove redundant check for file validity.

We already perform it at the beginning of the function so we can't
arrive here with an invalid object. Also, add a test so that bugs
won't sneak in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258982 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoARMv7k: base ABI decision on v7k Arch rather than watchos OS.
Tim Northover [Wed, 27 Jan 2016 19:32:29 +0000 (19:32 +0000)]
ARMv7k: base ABI decision on v7k Arch rather than watchos OS.

Various bits we want to use the new ABI actually compile with "-arch armv7k
-miphoneos-version-min=9.0". Not ideal, but also not ridiculous given how
slices work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258975 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoOne more batch of self-containing headers.
Benjamin Kramer [Wed, 27 Jan 2016 19:29:56 +0000 (19:29 +0000)]
One more batch of self-containing headers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258974 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDon't put classes in headers into anonymous namespaces.
Benjamin Kramer [Wed, 27 Jan 2016 19:29:42 +0000 (19:29 +0000)]
Don't put classes in headers into anonymous namespaces.

You want ODR violations? That's how you get ODR violations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258973 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[SimplifyCFG] limit recursion depth when speculating instructions (PR26308)
Sanjay Patel [Wed, 27 Jan 2016 19:22:45 +0000 (19:22 +0000)]
[SimplifyCFG] limit recursion depth when speculating instructions (PR26308)

This is a fix for:
https://llvm.org/bugs/show_bug.cgi?id=26308

With the switch to using the TTI cost model in:
http://reviews.llvm.org/rL228826
...it became possible to hit a zero-cost cycle of instructions (gep -> phi -> gep...),
so we need a cap for the recursion in DominatesMergePoint().

A recursion depth parameter was already added for a different reason in:
http://reviews.llvm.org/rL255660
...so we can just set a limit for it.

I pulled "10" out of the air and made it an independent parameter that we can play with.
It might be higher than it needs to be given the currently low default value of
PHINodeFoldingThreshold (2). That's the starting cost value that we enter the recursion
with, and most instructions have cost set to TCC_Basic (1), so I don't think we're going
to speculate more than 2 instructions with the current parameters.

As noted in the review and the TODO comment, we can do better than just limiting recursion
depth.

Differential Revision: http://reviews.llvm.org/D16637

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258971 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd support for objc_unsafeClaimAutoreleasedReturnValue to the
John McCall [Wed, 27 Jan 2016 19:05:08 +0000 (19:05 +0000)]
Add support for objc_unsafeClaimAutoreleasedReturnValue to the
ObjC ARC Optimizer.

The main implication of this is:

1. Ensuring that we treat it conservatively in terms of optimization.
2. We put the ASM marker on it so that the runtime can recognize
objc_unsafeClaimAutoreleasedReturnValue from releaseRV.

<rdar://problem/21567064>

Patch by Michael Gottesman!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258970 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUnbreak wasm build after r258951.
Benjamin Kramer [Wed, 27 Jan 2016 18:03:40 +0000 (18:03 +0000)]
Unbreak wasm build after r258951.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258957 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMake more headers self-contained.
Benjamin Kramer [Wed, 27 Jan 2016 18:03:37 +0000 (18:03 +0000)]
Make more headers self-contained.

A lot of this comes from the new complete type requirement of DenseMap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258956 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRefactor backend diagnostics for unsupported features
Oliver Stannard [Wed, 27 Jan 2016 17:30:33 +0000 (17:30 +0000)]
Refactor backend diagnostics for unsupported features

The BPF and WebAssembly backends had identical code for emitting errors
for unsupported features, and AMDGPU had very similar code. This merges
them all into one DiagnosticInfo subclass, that can be used by any
backend.

There should be minimal functional changes here, but some AMDGPU tests
have been updated for the new format of errors (it used a slightly
different format to BPF and WebAssembly). The AMDGPU error messages will
now benefit from having precise source locations when debug info is
available.

The implementation of DiagnosticInfoUnsupported::print must be in
lib/Codegen rather than in the existing file in lib/IR/ to avoid
introducing a dependency from IR to CodeGen.

Differential Revision: http://reviews.llvm.org/D16590

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258951 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[IndVars] Hoist DataLayout load out of loop; NFC
Sanjoy Das [Wed, 27 Jan 2016 17:05:09 +0000 (17:05 +0000)]
[IndVars] Hoist DataLayout load out of loop; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258946 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[IndVars] Use isSCEVable; NFC
Sanjoy Das [Wed, 27 Jan 2016 17:05:06 +0000 (17:05 +0000)]
[IndVars] Use isSCEVable; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258945 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[IndVars] Use range-for; NFC
Sanjoy Das [Wed, 27 Jan 2016 17:05:03 +0000 (17:05 +0000)]
[IndVars] Use range-for; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258944 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove SafeStack to CodeGen.
Benjamin Kramer [Wed, 27 Jan 2016 16:53:42 +0000 (16:53 +0000)]
Move SafeStack to CodeGen.

It depends on the target machinery, that's not available for
instrumentation passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258942 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][SSE] Test insertps instrinsic calls with masks that can't combine to something...
Simon Pilgrim [Wed, 27 Jan 2016 16:51:57 +0000 (16:51 +0000)]
[X86][SSE] Test insertps instrinsic calls with masks that can't combine to something simpler

For these basic tests of the intrinsic, make sure the mask can't simplify to movss, blend-with-zero or something else

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258941 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRename TargetSelectionDAGInfo into SelectionDAGTargetInfo and move it to CodeGen/
Benjamin Kramer [Wed, 27 Jan 2016 16:32:26 +0000 (16:32 +0000)]
Rename TargetSelectionDAGInfo into SelectionDAGTargetInfo and move it to CodeGen/

It's a SelectionDAG thing, not a Target thing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258939 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove passes that live in lib/CodeGen out of Scalar.h
Benjamin Kramer [Wed, 27 Jan 2016 16:05:42 +0000 (16:05 +0000)]
Move passes that live in lib/CodeGen out of Scalar.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258938 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMake some headers self-contained, remove unused includes that violate layering.
Benjamin Kramer [Wed, 27 Jan 2016 16:05:37 +0000 (16:05 +0000)]
Make some headers self-contained, remove unused includes that violate layering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258937 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAMDGPU/SI: Fix commuting of 32-bit VOPC instructions
Tom Stellard [Wed, 27 Jan 2016 15:53:52 +0000 (15:53 +0000)]
AMDGPU/SI: Fix commuting of 32-bit VOPC instructions

Summary:
We didn't have entries in the commuting table for the 32-bit
instructions.  I don't think we hit this problem now, but we
will once uniform branching is enabled.  Tests will come in
a later commit.

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D16600

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258936 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[DebugInfo] Support zero-length CIE in the _eh_frame parser
Igor Laevsky [Wed, 27 Jan 2016 14:05:35 +0000 (14:05 +0000)]
[DebugInfo] Support zero-length CIE in the _eh_frame parser

MCJIT emits zero-length CIE at the end of the _eh_frame section. This change
ensures that parser inside DebugInfo will not crash and correctly record such cases.
We are now recording DW_EH_PE_omit as a default value for FDE and LSDA encodings.
Also Offset != EndAugmentationOffset assertion check will only happen if augmentation
string had 'z' letter in it.

Differential Revision: http://reviews.llvm.org/D16588

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258931 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoReapply commit r258404 with fix
Matthew Simpson [Wed, 27 Jan 2016 13:43:27 +0000 (13:43 +0000)]
Reapply commit r258404 with fix

This patch is the second attempt to reapply commit r258404. There was bug in
the initial patch and subsequent fix (mentioned below).

The initial patch caused an assertion because we were computing smaller type
sizes for instructions that cannot be demoted. The fix first determines the
instructions that will be demoted, and then applies the smaller type size to
only those instructions.

This should fix PR26239 and PR26307.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258929 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove superfluous call to std::to_string that's breaking the cygwin build.
Benjamin Kramer [Wed, 27 Jan 2016 13:22:39 +0000 (13:22 +0000)]
Remove superfluous call to std::to_string that's breaking the cygwin build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258928 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "Allow X86::COND_NE_OR_P and X86::COND_NP_OR_E to be reversed."
Benjamin Kramer [Wed, 27 Jan 2016 12:44:12 +0000 (12:44 +0000)]
Revert "Allow X86::COND_NE_OR_P and X86::COND_NP_OR_E to be reversed."

and "Add a missing test case for r258847."

This reverts commit r258847, r258848. Causes miscompilations and backend
errors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258927 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd missing build attribute regression tests for Cortex-A8
Sjoerd Meijer [Wed, 27 Jan 2016 11:34:51 +0000 (11:34 +0000)]
Add missing build attribute regression tests for Cortex-A8

Differential Revision: http://reviews.llvm.org/D16576

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258923 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAMDGPU/SI: Stoney has only 16 LDS banks
Marek Olsak [Wed, 27 Jan 2016 11:19:45 +0000 (11:19 +0000)]
AMDGPU/SI: Stoney has only 16 LDS banks

Summary:
This is a candidate for stable, along with all patches that add the "stoney"
processor.

Reviewers: tstellarAMD

Subscribers: arsenm

Differential Revision: http://reviews.llvm.org/D16485

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258922 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove MCTargetAsmParser.h to llvm/MC/MCParser where it belongs.
Benjamin Kramer [Wed, 27 Jan 2016 10:01:28 +0000 (10:01 +0000)]
Move MCTargetAsmParser.h to llvm/MC/MCParser where it belongs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258917 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAVX512: Fix vpmovzxbw predicate for AVX1/2 instructions.
Igor Breger [Wed, 27 Jan 2016 08:57:46 +0000 (08:57 +0000)]
AVX512: Fix vpmovzxbw predicate for AVX1/2 instructions.

Differential Revision: http://reviews.llvm.org/D16595

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258915 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAVX512: Add store mask patterns.
Igor Breger [Wed, 27 Jan 2016 08:43:25 +0000 (08:43 +0000)]
AVX512: Add store mask patterns.

Differential Revision: http://reviews.llvm.org/D16596

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258914 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[IndVarSimplify] Rewrite loop exit values with their initial values from loop preheader
Chen Li [Wed, 27 Jan 2016 07:40:41 +0000 (07:40 +0000)]
[IndVarSimplify] Rewrite loop exit values with their initial values from loop preheader

Summary:
This is a revised version of D13974, and the following quoted summary are from D13974

"This patch adds support to check if a loop has loop invariant conditions which lead to loop exits. If so, we know that if the exit path is taken, it is at the first loop iteration. If there is an induction variable used in that exit path whose value has not been updated, it will keep its initial value passing from loop preheader. We can therefore rewrite the exit value with
its initial value. This will help remove phis created by LCSSA and enable other optimizations like loop unswitch."

D13974 was committed but failed one lnt test. The bug was that we only checked the condition from loop exit's incoming block was a loop invariant. But there could be another condition from loop header to that incoming block not being a loop invariant. This would produce miscompiled code.

This patch fixes the issue by checking if the incoming block is loop header, and if not, don't perform the rewrite. The could be further improved by recursively checking all conditions leading to loop exit block, but I'd like to check in this simple version first and improve it with future patches.

Reviewers: sanjoy

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D16570

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258912 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[SLPVectorizer] Swap the checking order of isCommutative and isConsecutiveAccess
Haicheng Wu [Wed, 27 Jan 2016 04:59:05 +0000 (04:59 +0000)]
[SLPVectorizer] Swap the checking order of isCommutative and isConsecutiveAccess

NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258909 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSmallPtrSet: Inline the part of insert_imp in the small case
Matthias Braun [Wed, 27 Jan 2016 04:20:24 +0000 (04:20 +0000)]
SmallPtrSet: Inline the part of insert_imp in the small case

Most of the time we only hit the small case, so it is beneficial to pull
it out of the insert_imp() implementation. This improves compile time
at least for non-LTO builds.

Differential Revision: http://reviews.llvm.org/D16619

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258908 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFunction: Slightly simplify code by using existing hasFnAttribute() convenience function
Matthias Braun [Wed, 27 Jan 2016 03:45:25 +0000 (03:45 +0000)]
Function: Slightly simplify code by using existing hasFnAttribute() convenience function

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258907 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Coverage] Fix more bugs in covmap V1 documentation
Xinliang David Li [Wed, 27 Jan 2016 03:13:09 +0000 (03:13 +0000)]
[Coverage] Fix more bugs in covmap V1 documentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258906 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "Revert "[SimplifyCFG] allow speculation of exactly one expensive instruction...
David Majnemer [Wed, 27 Jan 2016 02:59:41 +0000 (02:59 +0000)]
Revert "Revert "[SimplifyCFG] allow speculation of exactly one expensive instruction (PR24818)""

This reverts commit r258903 which reverted r255660.  r258903 was an
accidental commit and should not have been committed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258905 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[SimplifyCFG] Don't mistake icmp of and for a tree of comparisons
David Majnemer [Wed, 27 Jan 2016 02:43:28 +0000 (02:43 +0000)]
[SimplifyCFG] Don't mistake icmp of and for a tree of comparisons

SimplifyCFG tries to turn complex branch conditions into a switch.
Some of it's logic attempts to reason about bitwise arithmetic produced
by InstCombine.  InstCombine can turn things like (X == 2) || (X == 3)
into (X & 1) == 2 and so SimplifyCFG tries to detect when this occurs so
that it can produce a switch instruction.

However, the legality checking was not sufficient to determine whether
or not this had occured.  Correctly check this case by requiring that
the right-hand side of the comparison be a power of two.

This fixes PR26323.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258904 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "[SimplifyCFG] allow speculation of exactly one expensive instruction (PR24818)"
David Majnemer [Wed, 27 Jan 2016 02:43:22 +0000 (02:43 +0000)]
Revert "[SimplifyCFG] allow speculation of exactly one expensive instruction (PR24818)"

This reverts commit r255660.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258903 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAMDGPU: Fix default device handling
Matt Arsenault [Wed, 27 Jan 2016 02:17:49 +0000 (02:17 +0000)]
AMDGPU: Fix default device handling

When no device name is specified, default to kaveri
for HSA since SI is not supported and it woud fail.

Default to "tahiti" instead of "SI" since these are
effectively the same, and tahiti is an actual device.

Move default device handling to the TargetMachine
rather than the AMDGPUSubtarget. The module ISA version
is computed from the device name provided with the target
machine, so the attributes printed by the AsmPrinter were
inconsistent with those computed in the subtarget.

Also remove DevName field from subtarget since it's redundant
with getCPU() in the superclass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258901 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[cmake] Remove /Og- flag which was working around PR24785
Reid Kleckner [Wed, 27 Jan 2016 01:52:46 +0000 (01:52 +0000)]
[cmake] Remove /Og- flag which was working around PR24785

With r258897, MSVC 2013 now successfully compiles Function.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258899 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd "/dev/tty" as a special file name for lit tests.
Yunzhong Gao [Wed, 27 Jan 2016 01:48:20 +0000 (01:48 +0000)]
Add "/dev/tty" as a special file name for lit tests.

If a lit test has a RUN line that includes a redirection to "/dev/tty", the
redirection goes to the special device file corresponding to the console. It
is /dev/tty on UNIX-like systems and "CON" on Windows.

This patch is needed to implement a test like PR25717 (caused by the size limit
of the Windows system call WriteConsole() prior to Windows 8) where the test
only breaks when outputing to the console and won't fail if using a pipe.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258898 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[llvm-tblgen] Avoid StringMatcher for GCC and MS builtin names
Reid Kleckner [Wed, 27 Jan 2016 01:43:12 +0000 (01:43 +0000)]
[llvm-tblgen] Avoid StringMatcher for GCC and MS builtin names

This brings the compile time of Function.cpp from ~40s down to ~4s for
me locally. It also shaves off about 400KB of object file size in a
release+asserts build.

I also realized that the AMDGPU backend does not have any GCC builtin
names to match, so the extra lookup was a no-op. I removed it to silence
a zero-length string table array warning. There should be no functional
change here.

This change really ends the story of PR11951.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258897 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Add a test for the mem-intrinsic code in WebAssemblyPeephole.cpp
Dan Gohman [Wed, 27 Jan 2016 01:37:52 +0000 (01:37 +0000)]
[WebAssembly] Add a test for the mem-intrinsic code in WebAssemblyPeephole.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258895 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agotest-release.sh: Ignore LC_CTYPE in sed invocation on Darwin
Hans Wennborg [Wed, 27 Jan 2016 00:19:05 +0000 (00:19 +0000)]
test-release.sh: Ignore LC_CTYPE in sed invocation on Darwin

Here, sed is used to prepare object files for comparison via cmp. On my Darwin
15.4.0 machine, LC_CTYPE is set to UTF-8 (by default, I believe). Under these
circumstances, anything sed is made to read will be treated as UTF-8, prompting
it to signal an error if it is not, like so:

% sed s/a/b/ <(head -n1 /dev/random) >/dev/null; echo $?
sed: RE error: illegal byte sequence
1
%

To make sed work as expected, I need to set LC_CTYPE to C:

% env LC_CTYPE=C sed s/a/b/ <(head -n1 /dev/random) >/dev/null; echo $?
0
%

Without this change, sed will exit with an error for every single file that it
compares between phase 2 and phase 3, thereby making it look as if the
differences were far larger than they are.

Patch by Elias Pipping!

Differential Revision: http://reviews.llvm.org/D16548

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258891 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PGO] Make header portable for C /NFC
Xinliang David Li [Wed, 27 Jan 2016 00:13:39 +0000 (00:13 +0000)]
[PGO] Make header portable for C /NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258889 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDisable all standard lib functions for NVVM.
Justin Lebar [Tue, 26 Jan 2016 23:51:06 +0000 (23:51 +0000)]
Disable all standard lib functions for NVVM.

Summary:
NVVM doesn't have a standard library, as currently implemented, so this
just isn't going to work.  I'd like to revisit this, since it's hiding
opportunities for optimization, but correctness comes first.

Thank you to hfinkel for pointing me in the right direction here.

Reviewers: tra

Subscribers: echristo, jhen, llvm-commits, hfinkel

Differential Revision: http://reviews.llvm.org/D16604

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258884 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix identify_magic() to check that a file that starts with MH_MAGIC is
Kevin Enderby [Tue, 26 Jan 2016 23:43:37 +0000 (23:43 +0000)]
Fix identify_magic() to check that a file that starts with MH_MAGIC is
at least as big as the mach header to be identified as a Mach-O file and
make sure smaller files are not identified as a Mach-O files but as
unknown files. Also fix identify_magic() so it looks at all 4 bytes of
the filetype field when determining the type of the Mach-O file.
Then fix the macho-invalid-header test case to check that it is an
unknown file and make sure it does not get the error for
object_error::parse_failed.  And also update the unit tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258883 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[GVN] Split AvailableValueInBlock into two parts [NFC]
Philip Reames [Tue, 26 Jan 2016 23:43:16 +0000 (23:43 +0000)]
[GVN] Split AvailableValueInBlock into two parts [NFC]

AvailableValue is the part that represents the potential rematerialization.  AvailableValueInBlock is simply a pair of an AvailableValue and a BB which we might materialize it in.

This is motivated by http://reviews.llvm.org/D16608.  The intent is that we'll have a single function which handles the local case which both local and non-local will use to identify available values.  Once that's done, the local case can rematerialize at the use site and the non-local case can do the SSA construction as it does currently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258882 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[docs] Fix a typo
Sanjoy Das [Tue, 26 Jan 2016 23:26:25 +0000 (23:26 +0000)]
[docs] Fix a typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258878 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PGO] allow pgo name collector to disable compression (for testing)/NFC
Xinliang David Li [Tue, 26 Jan 2016 23:13:00 +0000 (23:13 +0000)]
[PGO] allow pgo name collector to disable compression (for testing)/NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258876 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[llvm-tblgen] Stop emitting the intrinsic name matching code
Reid Kleckner [Tue, 26 Jan 2016 23:01:21 +0000 (23:01 +0000)]
[llvm-tblgen] Stop emitting the intrinsic name matching code

The AMDGPU backend was the last user of the old StringMatcher
recognition code. Move it over to the new lookupLLVMIntrinsicName
funciton, which is now improved to handle all of the interesting edge
cases exposed by AMDGPU intrinsic names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258875 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFixing the documentation builds
Chris Bieneman [Tue, 26 Jan 2016 22:53:12 +0000 (22:53 +0000)]
Fixing the documentation builds

I broke the documentation builds when I deleted the MakefileGuide as part of the autoconf removal. At some point I'll need to do a more in-depth pass updating the documentation to remove references to the old build system.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258873 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Omit no-op adds for non-mem uses of FrameIndex
Derek Schuff [Tue, 26 Jan 2016 22:47:43 +0000 (22:47 +0000)]
[WebAssembly] Omit no-op adds for non-mem uses of FrameIndex

Differential Revision: http://reviews.llvm.org/D16554

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258872 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoHandle more edge cases in intrinsic name binary search
Reid Kleckner [Tue, 26 Jan 2016 22:33:19 +0000 (22:33 +0000)]
Handle more edge cases in intrinsic name binary search

I tried to make the AMDGPU intrinsic info table use this instead of
another StringMatcher, and some issues arose.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258871 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][SSE] Added 8i8 to 8i64 sext/zext tests
Simon Pilgrim [Tue, 26 Jan 2016 22:19:22 +0000 (22:19 +0000)]
[X86][SSE] Added 8i8 to 8i64 sext/zext tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258868 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] make the subtarget member a const reference, not a pointer ; NFCI
Sanjay Patel [Tue, 26 Jan 2016 22:08:58 +0000 (22:08 +0000)]
[x86] make the subtarget member a const reference, not a pointer ; NFCI

It's passed in as a reference; it's not optional; it's not a pointer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258867 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] Add support for zeroed shuffle elements to getShuffleScalarElt
Simon Pilgrim [Tue, 26 Jan 2016 21:39:25 +0000 (21:39 +0000)]
[X86] Add support for zeroed shuffle elements to getShuffleScalarElt

Enable handling of SM_SentinelZero shuffle elements to getShuffleScalarElt. Improves VZEXT_LOAD matches in EltsFromConsecutiveLoads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258865 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove autoconf support
Chris Bieneman [Tue, 26 Jan 2016 21:29:08 +0000 (21:29 +0000)]
Remove autoconf support

Summary:
This patch is provided in preparation for removing autoconf on 1/26. The proposal to remove autoconf on 1/26 was discussed on the llvm-dev thread here: http://lists.llvm.org/pipermail/llvm-dev/2016-January/093875.html

"I felt a great disturbance in the [build system], as if millions of [makefiles] suddenly cried out in terror and were suddenly silenced. I fear something [amazing] has happened."
- Obi Wan Kenobi

Reviewers: chandlerc, grosbach, bob.wilson, tstellarAMD, echristo, whitequark

Subscribers: chfast, simoncook, emaste, jholewinski, tberghammer, jfb, danalbert, srhines, arsenm, dschuff, jyknight, dsanders, joker.eph, llvm-commits

Differential Revision: http://reviews.llvm.org/D16471

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258861 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Remove check for FrameIndex operands in WebAssemblyPeephole
Derek Schuff [Tue, 26 Jan 2016 21:08:27 +0000 (21:08 +0000)]
[WebAssembly] Remove check for FrameIndex operands in WebAssemblyPeephole

This pass runs after FrameIndex elimination, so it should never see FI
operands. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258860 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] add materializeVectorConstant() helper function; NFC
Sanjay Patel [Tue, 26 Jan 2016 21:05:00 +0000 (21:05 +0000)]
[x86] add materializeVectorConstant() helper function; NFC

LowerBUILD_VECTOR is still over 300 lines long, but it's a start...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258858 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix comparison warning (r258845)
Hemant Kulkarni [Tue, 26 Jan 2016 20:38:15 +0000 (20:38 +0000)]
Fix comparison warning (r258845)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258856 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFixes build break introduced by r258845
Hemant Kulkarni [Tue, 26 Jan 2016 20:28:15 +0000 (20:28 +0000)]
Fixes build break introduced by r258845

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258854 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoWebAssembly NFC: update error message
JF Bastien [Tue, 26 Jan 2016 20:24:51 +0000 (20:24 +0000)]
WebAssembly NFC: update error message

I forgot to update this one in my previous patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258853 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoWebAssembly: don't optimize memcpy/memmove/memcpy to frame index
JF Bastien [Tue, 26 Jan 2016 20:22:42 +0000 (20:22 +0000)]
WebAssembly: don't optimize memcpy/memmove/memcpy to frame index

r258781 optimized memcpy/memmove/memcpy so the intrinsic call can return its first argument, but missed the frame index case. Teach it to ignore that case so C code doesn't assert out in these cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258851 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd a missing test case for r258847.
Cong Hou [Tue, 26 Jan 2016 20:09:38 +0000 (20:09 +0000)]
Add a missing test case for r258847.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258848 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAllow X86::COND_NE_OR_P and X86::COND_NP_OR_E to be reversed.
Cong Hou [Tue, 26 Jan 2016 20:08:01 +0000 (20:08 +0000)]
Allow X86::COND_NE_OR_P and X86::COND_NP_OR_E to be reversed.

Currently, AnalyzeBranch() fails non-equality comparison between floating points
on X86 (see https://llvm.org/bugs/show_bug.cgi?id=23875). This is because this
function can modify the branch by reversing the conditional jump and removing
unconditional jump if there is a proper fall-through. However, in the case of
non-equality comparison between floating points, this can turn the branch
"unanalyzable". Consider the following case:

jne.BB1
jp.BB1
jmp.BB2
.BB1:
...
.BB2:
...

AnalyzeBranch() will reverse "jp .BB1" to "jnp .BB2" and then "jmp .BB2" will be
removed:

jne.BB1
jnp.BB2
.BB1:
...
.BB2:
...

However, AnalyzeBranch() cannot analyze this branch anymore as there are two
conditional jumps with different targets. This may disable some optimizations
like block-placement: in this case the fall-through behavior is enforced even if
the fall-through block is very cold, which is suboptimal.

Actually this optimization is also done in block-placement pass, which means we
can remove this optimization from AnalyzeBranch(). However, currently
X86::COND_NE_OR_P and X86::COND_NP_OR_E are not reversible: there is no defined
negation conditions for them.

In order to reverse them, this patch defines two new CondCode X86::COND_E_AND_NP
and X86::COND_P_AND_NE. It also defines how to synthesize instructions for them.
Here only the second conditional jump is reversed. This is valid as we only need
them to do this "unconditional jump removal" optimization.

Differential Revision: http://reviews.llvm.org/D11393

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258847 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[llvm-nm] Roll several conditions into a single if. NFCI.
Davide Italiano [Tue, 26 Jan 2016 19:57:42 +0000 (19:57 +0000)]
[llvm-nm] Roll several conditions into a single if.  NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258846 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[llvm-readobj] Add -elf-section-groups option
Hemant Kulkarni [Tue, 26 Jan 2016 19:46:39 +0000 (19:46 +0000)]
[llvm-readobj] Add -elf-section-groups option

Adds a way to inspect SHT_GROUP sections in ELF objects.
Displays signature, member sections of these sections.

Differential revision: http://reviews.llvm.org/D16555

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258845 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ScheduleDAGInstrs] Simplify logic to improve readability. NFC.
Chad Rosier [Tue, 26 Jan 2016 19:33:57 +0000 (19:33 +0000)]
[ScheduleDAGInstrs] Simplify logic to improve readability. NFC.

The call to isInvariantLoad() already returns false for non-load instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258841 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agotidy up; NFC
Sanjay Patel [Tue, 26 Jan 2016 19:30:14 +0000 (19:30 +0000)]
tidy up; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258838 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[llvm-nm] Simplify. No functional changes intended.
Davide Italiano [Tue, 26 Jan 2016 19:28:51 +0000 (19:28 +0000)]
[llvm-nm] Simplify. No functional changes intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258837 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] simplify getOnesVector() ; NFCI
Sanjay Patel [Tue, 26 Jan 2016 18:49:36 +0000 (18:49 +0000)]
[x86] simplify getOnesVector() ; NFCI

Let DAG.getConstant() handle the splatting; there's no need
to repeat that logic here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258833 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix Clang-tidy modernize-use-nullptr and modernize-use-override warnings; other minor...
Eugene Zelenko [Tue, 26 Jan 2016 18:48:36 +0000 (18:48 +0000)]
Fix Clang-tidy modernize-use-nullptr and modernize-use-override warnings; other minor fixes.

Differential revision: reviews.llvm.org/D16568

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258831 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoReassociate: Reprocess RedoInsts after each inst
Aditya Nandakumar [Tue, 26 Jan 2016 18:42:36 +0000 (18:42 +0000)]
Reassociate: Reprocess RedoInsts after each inst

Previously the RedoInsts was processed at the end of the block.
However it was possible that it left behind some instructions that
were not canonicalized.
This should guarantee that any previous instruction in the basic
block is canonicalized before we process a new instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258830 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86, AVX] tighten checks
Sanjay Patel [Tue, 26 Jan 2016 18:22:50 +0000 (18:22 +0000)]
[x86, AVX] tighten checks

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258828 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUpdate wasm target for r258819.
Benjamin Kramer [Tue, 26 Jan 2016 18:21:38 +0000 (18:21 +0000)]
Update wasm target for r258819.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258827 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUpdate the comments for the macho-invalid-zero-ncmds test and fix
Kevin Enderby [Tue, 26 Jan 2016 18:20:49 +0000 (18:20 +0000)]
Update the comments for the macho-invalid-zero-ncmds test and fix
llvm-objdump when printing the Mach Header to print the unknown
cputype and cpusubtype fields as decimal instead of not printing
them at all.  And change the test to check for that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258826 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agofix formatting; NFC
Sanjay Patel [Tue, 26 Jan 2016 18:14:37 +0000 (18:14 +0000)]
fix formatting; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258825 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agodon't repeat names in documentation comments; NFC
Sanjay Patel [Tue, 26 Jan 2016 17:06:13 +0000 (17:06 +0000)]
don't repeat names in documentation comments; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258820 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoReflect the MC/MCDisassembler split on the include/ level.
Benjamin Kramer [Tue, 26 Jan 2016 16:44:37 +0000 (16:44 +0000)]
Reflect the MC/MCDisassembler split on the include/ level.

No functional change, just moving code around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258818 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[LibCallSimplifier] fold memset(malloc(x), 0, x) --> calloc(1, x)
Sanjay Patel [Tue, 26 Jan 2016 16:17:24 +0000 (16:17 +0000)]
[LibCallSimplifier] fold memset(malloc(x), 0, x) --> calloc(1, x)

This is a step towards solving PR25892:
https://llvm.org/bugs/show_bug.cgi?id=25892

It won't handle the reported case. As noted by the 'TODO' comments in the patch,
we need to relax the hasOneUse() constraint and also match patterns that include
memset_chk() and the llvm.memset() intrinsic in addition to memset().

Differential Revision: http://reviews.llvm.org/D16337

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258816 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "Reapply commit r258404 with fix"
Matthew Simpson [Tue, 26 Jan 2016 15:45:49 +0000 (15:45 +0000)]
Revert "Reapply commit r258404 with fix"

This commit exposes a crash in computeKnownBits on the Chromium buildbots.
Reverting to investigate.

Reference: https://llvm.org/bugs/show_bug.cgi?id=26307

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258812 91177308-0d34-0410-b5e6-96231b3b80d8