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6 years agoRevert r312719 "[MachineCombiner] Update instruction depths incrementally for large...
Hans Wennborg [Wed, 13 Sep 2017 23:23:09 +0000 (23:23 +0000)]
Revert r312719 "[MachineCombiner] Update instruction depths incrementally for large BBs."

This caused PR34596.

> [MachineCombiner] Update instruction depths incrementally for large BBs.
>
> Summary:
> For large basic blocks with lots of combinable instructions, the
> MachineTraceMetrics computations in MachineCombiner can dominate the compile
> time, as computing the trace information is quadratic in the number of
> instructions in a BB and it's relevant successors/predecessors.
>
> In most cases, knowing the instruction depth should be enough to make
> combination decisions. As we already iterate over all instructions in a basic
> block, the instruction depth can be computed incrementally. This reduces the
> cost of machine-combine drastically in cases where lots of instructions
> are combined. The major drawback is that AFAIK, computing the critical path
> length cannot be done incrementally. Therefore we only compute
> instruction depths incrementally, for basic blocks with more
> instructions than inc_threshold. The -machine-combiner-inc-threshold
> option can be used to set the threshold and allows for easier
> experimenting and checking if using incremental updates for all basic
> blocks has any impact on the performance.
>
> Reviewers: sanjoy, Gerolf, MatzeB, efriedma, fhahn
>
> Reviewed By: fhahn
>
> Subscribers: kiranchandramohan, javed.absar, efriedma, llvm-commits
>
> Differential Revision: https://reviews.llvm.org/D36619

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313213 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse MemoryBufferRef. (NFC)
Adrian Prantl [Wed, 13 Sep 2017 23:16:13 +0000 (23:16 +0000)]
Use MemoryBufferRef. (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313212 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFactor out duplicate code from llvm-dwarfdump (NFC)
Adrian Prantl [Wed, 13 Sep 2017 23:07:24 +0000 (23:07 +0000)]
Factor out duplicate code from llvm-dwarfdump (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313211 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUpdate testcase that was XFAILed on Darwin for llvm-dwarfdump change.
Adrian Prantl [Wed, 13 Sep 2017 22:30:43 +0000 (22:30 +0000)]
Update testcase that was XFAILed on Darwin for llvm-dwarfdump change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313209 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAllow target to decide when to cluster loads/stores in misched
Stanislav Mekhanoshin [Wed, 13 Sep 2017 22:20:47 +0000 (22:20 +0000)]
Allow target to decide when to cluster loads/stores in misched

MachineScheduler when clustering loads or stores checks if base
pointers point to the same memory. This check is done through
comparison of base registers of two memory instructions. This
works fine when instructions have separate offset operand. If
they require a full calculated pointer such instructions can
never be clustered according to such logic.

Changed shouldClusterMemOps to accept base registers as well and
let it decide what to do about it.

Differential Revision: https://reviews.llvm.org/D37698

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313208 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agollvm-dwarfdump: automatically dump both regular and .dwo variant of sections
Adrian Prantl [Wed, 13 Sep 2017 22:09:01 +0000 (22:09 +0000)]
llvm-dwarfdump: automatically dump both regular and .dwo variant of sections

Since users typically don't really care about the .dwo / non.dwo
distinction, this patch makes it so dwarfdump --debug-<info,...> dumps
.debug_info and (if available) also .debug_info.dwo. This simplifies
the command line interface (I've removed all dwo-specific dump
options) and makes the tool friendlier to use.

Differential Revision: https://reviews.llvm.org/D37771

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313207 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU: Handle coldcc in more places
Matt Arsenault [Wed, 13 Sep 2017 21:55:52 +0000 (21:55 +0000)]
AMDGPU: Handle coldcc in more places

Missed in r312936

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313205 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[codeview] VLAs and unsized arrays should use a size of zero
Reid Kleckner [Wed, 13 Sep 2017 21:54:20 +0000 (21:54 +0000)]
[codeview] VLAs and unsized arrays should use a size of zero

Previously we used a size of '1' for VLAs because we weren't sure what
MSVC did. However, MSVC does support declaring an array without a size,
for which it emits an array type with a size of zero. Clang emits the
same DI metadata for VLAs and arrays without bound, so we would describe
arrays without bound as having one element. This lead to Microsoft
debuggers only printing a single element.

Emitting a size of zero appears to cause these debuggers to search the
symbol information to find a definition of the variable with accurate
array bounds.

Fixes http://crbug.com/763580

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313203 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUpdate the early_inline test to explicitly add attribute for all functions. (NFC)
Dehao Chen [Wed, 13 Sep 2017 21:49:36 +0000 (21:49 +0000)]
Update the early_inline test to explicitly add attribute for all functions. (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313202 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Add more CPUs to host detection
Eli Friedman [Wed, 13 Sep 2017 21:48:00 +0000 (21:48 +0000)]
[ARM] Add more CPUs to host detection

This returns "cortex-a73" for second-generation Kryo; not precisely
correct, but close enough.

Differential Revision: https://reviews.llvm.org/D37724

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313200 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd a comment for the test. NFC.
Wei Mi [Wed, 13 Sep 2017 21:47:13 +0000 (21:47 +0000)]
Add a comment for the test. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313199 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Transforms] Fix some Clang-tidy modernize-use-using and Include What You Use warning...
Eugene Zelenko [Wed, 13 Sep 2017 21:43:53 +0000 (21:43 +0000)]
[Transforms] Fix some Clang-tidy modernize-use-using and Include What You Use warnings; other minor fixes (NFC).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313198 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[RegAlloc] Keep a copy of live interval for the spilled vregs in HoistSpillHelper.
Wei Mi [Wed, 13 Sep 2017 21:41:30 +0000 (21:41 +0000)]
[RegAlloc] Keep a copy of live interval for the spilled vregs in HoistSpillHelper.

This is to fix PR34502. After rL311401, the live range of spilled vreg will be
cleared. HoistSpill need to use the live range of the original vreg before splitting
to know the moving range of the spills. The patch saves a copy of live interval for
the spilled vreg inside of HoistSpillHelper.

Differential Revision: https://reviews.llvm.org/D37578

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313197 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Bitcode] Add a compatibility test for 5.0.0 bitcode
Vedant Kumar [Wed, 13 Sep 2017 21:40:59 +0000 (21:40 +0000)]
[Bitcode] Add a compatibility test for 5.0.0 bitcode

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313196 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoInvoke GetInlineCost for legality check before inline functions in SampleProfileLoader.
Dehao Chen [Wed, 13 Sep 2017 21:22:55 +0000 (21:22 +0000)]
Invoke GetInlineCost for legality check before inline functions in SampleProfileLoader.

Summary: SampleProfileLoader inlines hot functions if it is inlined in the profiled binary. However, the inline needs to be guarded by legality check, otherwise it could lead to correctness issues.

Reviewers: eraman, davidxl

Reviewed By: eraman

Subscribers: sanjoy, llvm-commits

Differential Revision: https://reviews.llvm.org/D37779

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313195 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CodeGen] Fix some Clang-tidy modernize and Include What You Use warnings; other...
Eugene Zelenko [Wed, 13 Sep 2017 21:15:20 +0000 (21:15 +0000)]
[CodeGen] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313194 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix a crash in llvm-nm for a bad Mach-O file that has an N_SECT type symbol and a...
Kevin Enderby [Wed, 13 Sep 2017 21:01:49 +0000 (21:01 +0000)]
Fix a crash in llvm-nm for a bad Mach-O file that has an N_SECT type symbol and a zero n_sect value.

The code in llvm-nm for Mach-O files to determine the section type for an
N_SECT type symbol it will call getSymbolSection() and check for the error,
but in the case the n_sect value is zero it will return section_end() (aka nullptr).
And the code was using that and crashing instead of just returning a ’s’ for a
section or printing (?,?) as it would if getSymbolSection() returned an error.

rdar://33136604

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313193 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMark static member functions as static in CodeViewDebug
Adrian McCarthy [Wed, 13 Sep 2017 20:53:55 +0000 (20:53 +0000)]
Mark static member functions as static in CodeViewDebug

Summary:
To improve CodeView quality for static member functions, we need to make the
static explicit.  In addition to a small change in LLVM's CodeViewDebug to
return the appropriate MethodKind, this requires a small change in Clang to
note the staticness in the debug info metadata.

Subscribers: aprantl, hiraditya

Differential Revision: https://reviews.llvm.org/D37715

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313192 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "Determine up front which projects are enabled."
Zachary Turner [Wed, 13 Sep 2017 20:49:25 +0000 (20:49 +0000)]
Revert "Determine up front which projects are enabled."

This was intended to be a generic CMake solution to a problem
shared across several projects.  It turns out it doesn't interact
very well certain CMake configurations, and furthermore the
"problem" is actually not a problem, as the problematic code
is never executed to begin with.  So this really isn't solving
anything.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313191 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Inliner] Add another way to compute full inline cost.
Easwaran Raman [Wed, 13 Sep 2017 20:16:02 +0000 (20:16 +0000)]
[Inliner] Add another way to compute full inline cost.

Summary:
Full inline cost is computed when -inline-cost-full is true or ORE is
non-null. This patch adds another way to compute full inline cost by
adding a field to InlineParams. This will be used by SampleProfileLoader
to check legality of inlining a callee that it wants to inline.

Reviewers: danielcdh, haicheng

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D37819

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313185 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LV] Avoid computing the register usage for default VF. NFC
Anna Thomas [Wed, 13 Sep 2017 19:35:45 +0000 (19:35 +0000)]
[LV] Avoid computing the register usage for default VF. NFC

These are changes to reduce redundant computations when calculating a
feasible vectorization factor:
1. early return when target has no vector registers
2. don't compute register usage for the default VF.

Suggested during review for D37702.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313176 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix a misleading phrase in the LangRef
Sanjoy Das [Wed, 13 Sep 2017 18:49:22 +0000 (18:49 +0000)]
Fix a misleading phrase in the LangRef

Reviewers: hfinkel, dberlin

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D37432

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313170 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRefactoring the stride 4 code in the X86interleavedaccess NFC
Michael Zuckerman [Wed, 13 Sep 2017 18:28:09 +0000 (18:28 +0000)]
Refactoring the stride 4 code in the X86interleavedaccess NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313166 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agollvm-dwarfdump: support dumping UUIDs of Mach-O binaries.
Adrian Prantl [Wed, 13 Sep 2017 18:22:59 +0000 (18:22 +0000)]
llvm-dwarfdump: support dumping UUIDs of Mach-O binaries.

This is a feature supported by Darwin dwarfdump. UUIDs are used to
associate executables with their .dSYM bundles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313165 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CFG] Fix typo in docblock: blocsk/blocks
Brian Gesiak [Wed, 13 Sep 2017 18:02:11 +0000 (18:02 +0000)]
[CFG] Fix typo in docblock: blocsk/blocks

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313164 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[unittests] Fix up test after rL313156
Vedant Kumar [Wed, 13 Sep 2017 18:00:22 +0000 (18:00 +0000)]
[unittests] Fix up test after  rL313156

Bot: http://green.lab.llvm.org/green/job/clang-stage1-cmake-RA-incremental/42421

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313163 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstSimplify] regenerate checks; NFC
Sanjay Patel [Wed, 13 Sep 2017 17:39:39 +0000 (17:39 +0000)]
[InstSimplify] regenerate checks; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313161 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips] Add unitests to check parsing MIPS triples. NFC
Simon Atanasyan [Wed, 13 Sep 2017 17:36:16 +0000 (17:36 +0000)]
[mips] Add unitests to check parsing MIPS triples. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313160 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd options to dump PGO counts in text.
Hiroshi Yamauchi [Wed, 13 Sep 2017 17:20:38 +0000 (17:20 +0000)]
Add options to dump PGO counts in text.

Summary:
Added text options to -pgo-view-counts and -pgo-view-raw-counts that dump block frequency and branch probability info in text.

This is useful when the graph is very large and complex (the dot command crashes, lines/edges too close to tell apart, hard to navigate without textual search) or simply when text is preferred.

Reviewers: davidxl

Reviewed By: davidxl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D37776

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313159 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ThinLTO] AliasSummary should not have any references
Teresa Johnson [Wed, 13 Sep 2017 17:10:24 +0000 (17:10 +0000)]
[ThinLTO] AliasSummary should not have any references

Summary: References should only be on the aliasee.

Reviewers: pcc

Subscribers: llvm-commits, inglorion

Differential Revision: https://reviews.llvm.org/D37814

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313158 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoThinLTO: Correctly follow aliasee references when dead stripping.
Peter Collingbourne [Wed, 13 Sep 2017 17:09:20 +0000 (17:09 +0000)]
ThinLTO: Correctly follow aliasee references when dead stripping.

We were previously handling aliases during dead stripping by adding
the aliased global's "original name" GUID to the worklist. This will
lead to incorrect behaviour if the global has local linkage because
the original name GUID will not correspond to the global's GUID in
the summary.

Because an alias is just another name for the global that it
references, there is no need to mark the referenced global as used,
or to follow references from any other copies of the global. So all
we need to do is to follow references from the aliasee's summary
instead of the alias.

Differential Revision: https://reviews.llvm.org/D37789

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313157 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoConvenience/safety fix for llvm::sys::Execute(And|No)Wait
Alexander Kornienko [Wed, 13 Sep 2017 17:03:37 +0000 (17:03 +0000)]
Convenience/safety fix for llvm::sys::Execute(And|No)Wait

Summary:
Change the type of the Redirects parameter of llvm::sys::ExecuteAndWait,
ExecuteNoWait and other APIs that wrap them from `const StringRef **` to
`ArrayRef<Optional<StringRef>>`, which is safer and simplifies the use of these
APIs (no more local StringRef variables just to get a pointer to).

Corresponding clang changes will be posted as a separate patch.

Reviewers: bkramer

Reviewed By: bkramer

Subscribers: vsk, llvm-commits

Differential Revision: https://reviews.llvm.org/D37563

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313155 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix bot failures by requiring x86 target in new test
Teresa Johnson [Wed, 13 Sep 2017 15:35:35 +0000 (15:35 +0000)]
Fix bot failures by requiring x86 target in new test

The test added in r313151 requires a target triple since it is
running through code generation. Fix bot failures by requiring
an x86 target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313153 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ThinLTO] For SamplePGO, need to handle ICP targets consistently in thin link
Teresa Johnson [Wed, 13 Sep 2017 15:16:38 +0000 (15:16 +0000)]
[ThinLTO] For SamplePGO, need to handle ICP targets consistently in thin link

Summary:
SamplePGO indirect call profiles record the target as the original GUID
for statics. The importer had special handling to map to the normal GUID
in that case. The dead global analysis needs the same treatment or
inconsistencies arise, resulting in linker unsats due to some dead
symbols being exported and kept, leaving in references to other dead
symbols that are removed.

This can happen when a SamplePGO profile collected by one binary is used
for a different binary, so the indirect call profiles may not accurately
reflect live targets.

Reviewers: danielcdh

Subscribers: mehdi_amini, inglorion, llvm-commits, eraman

Differential Revision: https://reviews.llvm.org/D37783

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313151 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips] correct operand range for DINSM instruction
Petar Jovanovic [Wed, 13 Sep 2017 14:09:13 +0000 (14:09 +0000)]
[mips] correct operand range for DINSM instruction

This patch corrects the definition of the DINSM instruction.
Specification for DINSM instruction for Mips64 says that size operand should
be 2 <= size <= 64, but it is defined as uimm5_inssize_plus1 which gives
range of 1 .. 32.

Patch by Aleksandar Beserminji.

Differential Revision: https://reviews.llvm.org/D37683

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313149 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[MachineScheduler] Put SchedRegion in an anonymous namespace.
Mikael Holmen [Wed, 13 Sep 2017 14:07:47 +0000 (14:07 +0000)]
[MachineScheduler] Put SchedRegion in an anonymous namespace.

Summary: It pollutes the global namespace otherwise.

Patch by: Bevin Hansson

Reviewers: jonpa

Reviewed By: jonpa

Subscribers: MatzeB, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D37555

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313148 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Power9] Add missing instructions: extswsli, popcntb
Stefan Pintilie [Wed, 13 Sep 2017 14:05:27 +0000 (14:05 +0000)]
[Power9] Add missing instructions: extswsli, popcntb

Added the following P9 instructions: extswsli, extswsli., popcntb

Differential Revision: https://reviews.llvm.org/D37342

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313147 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-objdump] Fix memory leaks in macho dump
Francis Ricci [Wed, 13 Sep 2017 13:57:45 +0000 (13:57 +0000)]
[llvm-objdump] Fix memory leaks in macho dump

Summary: Detected by LeakSanitizer for Darwin

Reviewers: enderby, rafael

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D37750

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313146 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[MachO] Prevent heap overflow when load command extends past EOF
Jonas Devlieghere [Wed, 13 Sep 2017 13:43:01 +0000 (13:43 +0000)]
[MachO] Prevent heap overflow when load command extends past EOF

This patch fixes a heap-buffer-overflow when a malformed Mach-O has a
load command who's size extends past the end of the binary.

Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=3225

Differential revision: https://reviews.llvm.org/D37439

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313145 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][Skylake] Replacing -mcpu=skx by -mattr in a codegen test. NFC.
Gadi Haber [Wed, 13 Sep 2017 12:39:18 +0000 (12:39 +0000)]
[X86][Skylake] Replacing -mcpu=skx by -mattr in a codegen test. NFC.

NFC.
Replacing -mcpu=skx by -mattr in the run command of the codegen test: avx512-gather-scatter-intrin.ll.

Reviewers: delena
Revision: https://reviews.llvm.org/D37799

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313144 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][FMA4] Test FMA4 commutation with repeated ops as well as FMA3
Simon Pilgrim [Wed, 13 Sep 2017 11:21:38 +0000 (11:21 +0000)]
[X86][FMA4] Test FMA4 commutation with repeated ops as well as FMA3

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313143 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][FMA] Added *213 fma instructions to scheduling tests
Simon Pilgrim [Wed, 13 Sep 2017 11:12:56 +0000 (11:12 +0000)]
[X86][FMA] Added *213 fma instructions to scheduling tests

Annoyingly the 132/231 variants are pretty tricky to create when you need to due to weak FMA commutation patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313142 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[MiSched|TableGen] : Tidy up and modernise. NFC.
Javed Absar [Wed, 13 Sep 2017 10:31:10 +0000 (10:31 +0000)]
[MiSched|TableGen] : Tidy up and modernise. NFC.

Replacing with range-based loop and substituting 'using'.

Reviewed by: @MatzeB
Differential Revision: https://reviews.llvm.org/D37748

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313140 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[dwarfdump] Rename Brief to Verbose in DIDumpOptions
Jonas Devlieghere [Wed, 13 Sep 2017 09:43:05 +0000 (09:43 +0000)]
[dwarfdump] Rename Brief to Verbose in DIDumpOptions

This patches renames "brief" to "verbose" in de DIDumpOptions and
inverts the logic to match the new behavior where brief is the default.
Changing the default value uncovered some bugs related to the
DIDumpOptions not being propagated and have been fixed as well.

Differential revision: https://reviews.llvm.org/D37745

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313139 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][Skylake][KNL] Updating code gen regression test to use the KNL and SKYLAKE...
Gadi Haber [Wed, 13 Sep 2017 09:28:25 +0000 (09:28 +0000)]
[X86][Skylake][KNL] Updating code gen regression test to use the KNL and SKYLAKE prefixes. NFC.

NFC.
Updating the code gen regression test bmi2-schedule.ll to use the KNL and SKYLAKE prefixes for the run commands that use the knl and Skylake mcpu options.
The fix is in preparation for a large patch of adding all SKL scheduling information.

Reviewers: delena, zvi, RKSimon
Revision: https://reviews.llvm.org/D37796

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313138 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][Skylake][KNL] Updating code gen regression test to use the KNL and SKYLAKE...
Gadi Haber [Wed, 13 Sep 2017 09:28:18 +0000 (09:28 +0000)]
[X86][Skylake][KNL] Updating code gen regression test to use the KNL and SKYLAKE prefixes. NFC.

NFC.
Updating the code gen regression test bmi2-schedule.ll to use the KNL and SKYLAKE prefixes for the run commands that use the knl and Skylake mcpu options.
The fix is in preparation for a large patch of adding all SKL scheduling information.

Reviewers: delena, zvi
Revision: https://reviews.llvm.org/D37796

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313137 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoNFC.
Gadi Haber [Wed, 13 Sep 2017 09:27:39 +0000 (09:27 +0000)]
NFC.
Updating codegen test bmi2-schedule.ll to use the SKYLAKE and KNL prefix as preparatipn for an upcoming patch to add all SKL scheduling information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313136 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalISel][X86] support G_FPEXT operation.
Igor Breger [Wed, 13 Sep 2017 09:05:23 +0000 (09:05 +0000)]
[GlobalISel][X86] support G_FPEXT operation.

Summary: Support G_FPEXT operation. Selection done via TableGen'erated code.

Reviewers: zvi, guyblank, aymanmus, m_zuckerman

Reviewed By: zvi

Subscribers: rovka, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D34816

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313135 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] [PATCH] [intrinsics] Lowering X86 ABS intrinsics to IR. (llvm)
Uriel Korach [Wed, 13 Sep 2017 09:02:36 +0000 (09:02 +0000)]
[X86] [PATCH] [intrinsics] Lowering X86 ABS intrinsics to IR. (llvm)

This patch, together with a matching clang patch (https://reviews.llvm.org/D37694), implements the lowering of X86 ABS intrinsics to IR.

differential revision: https://reviews.llvm.org/D37693.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313134 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Adding X86 Processor Families
Mohammed Agabaria [Wed, 13 Sep 2017 09:00:27 +0000 (09:00 +0000)]
[X86] Adding X86 Processor Families

Adding x86 Processor families to initialize several uArch properties (based on the family)
This patch shows how gather cost can be initialized based on the proc. family

Differential Revision: https://reviews.llvm.org/D35348

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313132 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add explicit mc-encoding checks to X86/viabs.ll. NFC.
Uriel Korach [Wed, 13 Sep 2017 08:33:55 +0000 (08:33 +0000)]
[X86] Add explicit mc-encoding checks to X86/viabs.ll. NFC.

Add explicit mc-encoding checks showing that the AVX512VL ABS intrinsics are actually mapped to EVEX encoding.
This is a pre-commit for a soon to come patch which will lower x86 target specific ABS intrinsics to IR.

Differential Revision: https://reviews.llvm.org/D37688

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313131 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Make sure we emit a SUBREG_TO_REG after the MOV32ri when creating a BEXTR64rr...
Craig Topper [Wed, 13 Sep 2017 07:53:21 +0000 (07:53 +0000)]
[X86] Make sure we emit a SUBREG_TO_REG after the MOV32ri when creating a BEXTR64rr instruction from a shift/and pair.

Fixes PR34589.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313126 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86 CodeGen] Optimization of ZeroExtendLoad for v2i8 vector
Elena Demikhovsky [Wed, 13 Sep 2017 06:40:26 +0000 (06:40 +0000)]
[X86 CodeGen] Optimization of ZeroExtendLoad for v2i8 vector

Load with zero-extend and sign-extend from v2i8 to v2i32 is "Legal" since SSE4.1 and may be performed using PMOVZXBD , PMOVSXBD instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313121 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LV] Fix PR34523 - avoid generating redundant selects
Ayal Zaks [Wed, 13 Sep 2017 06:28:37 +0000 (06:28 +0000)]
[LV] Fix PR34523 - avoid generating redundant selects

When converting a PHI into a series of 'select' instructions to combine the
incoming values together according their edge masks, initialize the first
value to the incoming value In0 of the first predecessor, instead of
generating a redundant assignment 'select(Cond[0], In0, In0)'. The latter
fails when the Cond[0] mask is null, representing a full mask, which can
happen only when there's a single incoming value.

No functional changes intended nor expected other than surviving null Cond[0]'s.

This fix follows D35725, which introduced using null to represent full masks.

Differential Revision: https://reviews.llvm.org/D37619

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313119 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GVNHoist] Factor out reachability to search for anticipable instructions quickly
Aditya Kumar [Wed, 13 Sep 2017 05:28:03 +0000 (05:28 +0000)]
[GVNHoist] Factor out reachability to search for anticipable instructions quickly

Factor out the reachability such that multiple queries to find reachability of values are fast. This is based on finding
the ANTIC points
in the CFG which do not change during hoisting. The ANTIC points are basically the dominance-frontiers in the inverse
graph. So we introduce a data structure (CHI nodes)
to keep track of values flowing out of a basic block. We only do this for values with multiple occurrences in the
function as they are the potential hoistable candidates.

This patch allows us to hoist instructions to a basic block with >2 successors, as well as deal with infinite loops in a
trivial way.
Relevant test cases are added to show the functionality as well as regression fixes from PR32821.

Regression from previous GVNHoist:
We do not hoist fully redundant expressions because fully redundant expressions are already handled by NewGVN

Differential Revision: https://reviews.llvm.org/D35918
Reviewers: dberlin, sebpop, gberry,

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313116 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-objcopy] Add e_machine validity check for reserved section indexes
Petr Hosek [Wed, 13 Sep 2017 03:04:50 +0000 (03:04 +0000)]
[llvm-objcopy] Add e_machine validity check for reserved section indexes

As discussed on llvm-commits it was decided it would be best to check
e_machine before declaring that a reserved section index is valid. The
only special e_machine value that matters here is EM_HEXAGON. This
change adds a special check for EM_HEXAGON.

Patch by Jake Ehrlich

Differential Revision: https://reviews.llvm.org/D37767

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313114 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Use isUInt<32> to simplify some code. NFC
Craig Topper [Wed, 13 Sep 2017 02:29:59 +0000 (02:29 +0000)]
[X86] Use isUInt<32> to simplify some code. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313112 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix dwarfdump cmdline test on Windows
Reid Kleckner [Wed, 13 Sep 2017 01:50:27 +0000 (01:50 +0000)]
Fix dwarfdump cmdline test on Windows

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313110 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARC] Prepare the implementation of relocation for LLD
Leslie Zhai [Wed, 13 Sep 2017 01:49:49 +0000 (01:49 +0000)]
[ARC] Prepare the implementation of relocation for LLD

Reviewers: ruiu, kparzysz, petecoup, rafael

Reviewed By: kparzysz

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D37556

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313109 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] Add a flag to disable LowerDbgDeclare
Reid Kleckner [Wed, 13 Sep 2017 01:43:25 +0000 (01:43 +0000)]
[InstCombine] Add a flag to disable LowerDbgDeclare

Summary:
This should improve optimized debug info for address-taken variables at
the cost of inaccurate debug info in some situations.

We patched this into clang and deployed this change to Chromium
developers, and this significantly improved debuggability of optimized
code. The long-term solution to PR34136 seems more and more like it's
going to take a while, so I would like to commit this change under a
flag so that it can be used as a stop-gap measure.

This flag should really help so for C++ aggregates like std::string and
std::vector, which are typically address-taken, even after inlining, and
cannot be SROA-ed.

Reviewers: aprantl, dblaikie, probinson, dberlin

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D36596

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313108 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Fuchsia] Magenta -> Zircon
Petr Hosek [Wed, 13 Sep 2017 01:18:06 +0000 (01:18 +0000)]
[Fuchsia] Magenta -> Zircon

Fuchsia's lowest API layer has been renamed from Magenta to Zircon.
In LLVM proper, this is only mentioned in comments.

Patch by Roland McGrath

Differential Revision: https://reviews.llvm.org/D37763

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313105 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[WebAssembly] Add sign extend instructions from atomics proposal
Derek Schuff [Wed, 13 Sep 2017 00:29:06 +0000 (00:29 +0000)]
[WebAssembly] Add sign extend instructions from atomics proposal

Select them from ISD::SIGN_EXTEND_INREG

Differential Revision: https://reviews.llvm.org/D37603

remove spurious change

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313101 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd Linux target triple to hopefully fix Mac bots.
Peter Collingbourne [Tue, 12 Sep 2017 23:40:19 +0000 (23:40 +0000)]
Add Linux target triple to hopefully fix Mac bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313093 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDetermine up front which projects are enabled.
Zachary Turner [Tue, 12 Sep 2017 23:32:34 +0000 (23:32 +0000)]
Determine up front which projects are enabled.

Some projects need to add conditional dependencies on other projects.
compiler-rt is already doing this, and I attempted to add this to
debuginfo-tests when I ran into the ordering problem, that you can't
conditionally add a dependency unless that dependency's CMakeLists.txt
has already been run (which would allow you to say if (TARGET foo).

The solution to this seems to be to determine very early on the entire
set of projects which is enabled. This is complicated by the fact that
there are multiple ways to enable projects, and different tree layouts
(e.g. mono-repo, out of -tree, external, etc). This patch attempts to
centralize all of this into one place, and then updates compiler-rt to
demonstrate as a proof of concept how this can simplify code.

Differential Revision: https://reviews.llvm.org/D37637

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313091 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SimplifyCFG] update test comments; NFC
Sanjay Patel [Tue, 12 Sep 2017 23:28:11 +0000 (23:28 +0000)]
[SimplifyCFG] update test comments; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313090 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[x86] eliminate unnecessary vector compare for AVX masked store
Sanjay Patel [Tue, 12 Sep 2017 23:24:05 +0000 (23:24 +0000)]
[x86] eliminate unnecessary vector compare for AVX masked store

The masked store instruction only cares about the sign-bit of each mask element,
so the compare s<0 isn't needed.

As noted in PR11210:
https://bugs.llvm.org/show_bug.cgi?id=11210
...fixing this should allow us to eliminate x86-specific masked store intrinsics in IR.
(Although more testing will be needed to confirm that.)

I filed a bug to track improvements for AVX512:
https://bugs.llvm.org/show_bug.cgi?id=34584

Differential Revision: https://reviews.llvm.org/D37446

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313089 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoClean up the --help output of llvm-dwarfdump by hiding irrelevant options.
Adrian Prantl [Tue, 12 Sep 2017 22:32:53 +0000 (22:32 +0000)]
Clean up the --help output of llvm-dwarfdump by hiding irrelevant options.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313085 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRefactor the code to pass down ACT to SampleProfileLoader correctly.
Dehao Chen [Tue, 12 Sep 2017 21:55:55 +0000 (21:55 +0000)]
Refactor the code to pass down ACT to SampleProfileLoader correctly.

Summary: This change passes down ACT to SampleProfileLoader for the new PM. Also remove the default value for SampleProfileLoader class as it is not used.

Reviewers: eraman, davidxl

Reviewed By: eraman

Subscribers: sanjoy, llvm-commits

Differential Revision: https://reviews.llvm.org/D37773

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313080 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRemove -generate-dwarf-pub-sections flag.
Peter Collingbourne [Tue, 12 Sep 2017 21:50:55 +0000 (21:50 +0000)]
Remove -generate-dwarf-pub-sections flag.

This flag is unnecessary for testing because we can get the coverage
we need by adjusting CU attributes.

Differential Revision: https://reviews.llvm.org/D37725

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313079 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoIR: Represent -ggnu-pubnames with a flag on the DICompileUnit.
Peter Collingbourne [Tue, 12 Sep 2017 21:50:41 +0000 (21:50 +0000)]
IR: Represent -ggnu-pubnames with a flag on the DICompileUnit.

This allows the flag to be persisted through to LTO.

Differential Revision: https://reviews.llvm.org/D37655

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313078 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips] handle UImm16_AltRelaxed match type
Petar Jovanovic [Tue, 12 Sep 2017 21:43:33 +0000 (21:43 +0000)]
[mips] handle UImm16_AltRelaxed match type

Currently, UImm16_AltRelaxed match type is not handled in
MatchAndEmitInstruction() function, which may result in
llvm_unreachable() behavior.
This patch adds necessary case for this match type.

Patch by Aleksandar Beserminji.

Differential Revision: https://reviews.llvm.org/D37682

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313077 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMake promoteLoopAccessesToScalars independent of AliasSet [NFC]
Alina Sbirlea [Tue, 12 Sep 2017 21:18:44 +0000 (21:18 +0000)]
Make promoteLoopAccessesToScalars independent of AliasSet [NFC]

Summary:
The current promoteLoopAccessesToScalars method receives an AliasSet, but
the information used is in fact a list of Value*, known to must alias.
Create the list ahead of time to make this method independent of the AliasSet class.

While there is no functionality change, this adds overhead for creating
a set of Value*, when promotion would normally exit earlier.
This is meant to be as a first refactoring step in order to start replacing
AliasSetTracker with MemorySSA.
And while the end goal is to redesign LICM, the first few steps will focus on
adding MemorySSA as an alternative to the AliasSetTracker using most of the
existing functionality.

Reviewers: mkuper, danielcdh, dberlin

Subscribers: sanjoy, chandlerc, gberry, davide, llvm-commits

Differential Revision: https://reviews.llvm.org/D35439

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313075 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64][GlobalISel] Select all fpexts.
Ahmed Bougacha [Tue, 12 Sep 2017 21:04:11 +0000 (21:04 +0000)]
[AArch64][GlobalISel] Select all fpexts.

Tablegen already can select these: mark them as legal, remove the
c++ code, and add tests for all types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313074 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64][GlobalISel] Select all fptruncs.
Ahmed Bougacha [Tue, 12 Sep 2017 21:04:10 +0000 (21:04 +0000)]
[AArch64][GlobalISel] Select all fptruncs.

We already support these in tablegen, but we're matching the wrong
operator (libm ftrunc).  Fix that.

While there, drop the c++ code, support COPYs of FPR16, and add tests
for the other types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313073 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[sancov] coverage-report-server.py: ServerHandler(): open file as UTF8
Roman Lebedev [Tue, 12 Sep 2017 18:59:21 +0000 (18:59 +0000)]
[sancov] coverage-report-server.py: ServerHandler(): open file as UTF8

Summary:
This is nessesary in Python3. Everywhere else we assume that
encoding is UTF8. If we don't specify it here, the defaults
from the environment will be used, which may result in ASCII
decoder being used. And if the file is non-ASCII, then it
will crash:
```
  File "/usr/local/bin/coverage-report-server.py", line 168, in do_GET
    for line_no, line in enumerate(f, start=1)])
  File "/usr/local/bin/coverage-report-server.py", line 165, in <listcomp>
    ["<span class='{cls}'>{line}&nbsp;</span>".format(
  File "/usr/lib/python3.5/encodings/ascii.py", line 26, in decode
    return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 106: ordinal not in range(128)
```

Fixes https://bugs.llvm.org/show_bug.cgi?id=33548

Now, how would i add a testcase here?

Reviewers: m.ostapenko, kcc

Reviewed By: kcc

Subscribers: kcc, llvm-commits

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D37661

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313063 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUpdate branch coalescing to be a PowerPC specific pass
Lei Huang [Tue, 12 Sep 2017 18:39:11 +0000 (18:39 +0000)]
Update branch coalescing to be a PowerPC specific pass

Implementing this pass as a PowerPC specific pass.  Branch coalescing utilizes
the analyzeBranch method which currently does not include any implicit operands.
This is not an issue on PPC but must be handled on other targets.

Pass is currently off by default. Enabled via -enable-ppc-branch-coalesce.

Differential Revision : https: // reviews.llvm.org/D32776

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313061 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[WebAssembly] Remove flags from MCSectionWasm
Sam Clegg [Tue, 12 Sep 2017 18:31:24 +0000 (18:31 +0000)]
[WebAssembly] Remove flags from MCSectionWasm

Looks like these were copied from the ELF sections but
don't apply to Wasm and were not used anywhere.

Also remove unused Wasm methods in MCContext.

Differential Revision: https://reviews.llvm.org/D37633

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313058 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "[DWARF] Incorrect prologue end line record."
Robert Lougher [Tue, 12 Sep 2017 18:23:15 +0000 (18:23 +0000)]
Revert "[DWARF] Incorrect prologue end line record."

This reverts commit r313047 as it is causing buildbot failure (lldb inline
stepping tests).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313057 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agobpf: Add BPF AsmParser support in LLVM
Yonghong Song [Tue, 12 Sep 2017 17:55:23 +0000 (17:55 +0000)]
bpf: Add BPF AsmParser support in LLVM

Reviewed-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313055 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Move matching of (and (srl/sra, C), (1<<C) - 1) to BEXTR/BEXTRI instruction...
Craig Topper [Tue, 12 Sep 2017 17:40:25 +0000 (17:40 +0000)]
[X86] Move matching of (and (srl/sra, C), (1<<C) - 1) to BEXTR/BEXTRI instruction to custom isel

Recognizing this pattern during DAG combine hides information about the 'and' and the shift from other combines. I think it should be recognized at isel so its as late as possible. But it can't be done with table based isel because you need to be able to look at both immediates. This patch moves it to custom isel in X86ISelDAGToDAG.cpp.

This does break a couple tests in tbm_patterns because we are now emitting an and_flag node or (cmp and, 0) that we dont' recognize yet. We already had this problem for several other TBM patterns so I think this fine and we can address of them together.

I've also fixed a bug where the combine to BEXTR was preventing us from using a trick of zero extending AH to handle extracts of bits 15:8. We might still want to use BEXTR if it enables load folding. But honestly I hope we narrowed the load instead before got to isel.

I think we should probably also support matching BEXTR from (srl/srl (and mask << C), C). But that should be a different patch.

Differential Revision: https://reviews.llvm.org/D37592

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313054 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdded "zext" from v2i8 to v2i32. In the next patch I'll optimize the sequence.
Elena Demikhovsky [Tue, 12 Sep 2017 17:27:53 +0000 (17:27 +0000)]
Added "zext" from v2i8 to v2i32. In the next patch I'll optimize the sequence.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313052 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DWARF] Incorrect prologue end line record.
Robert Lougher [Tue, 12 Sep 2017 16:35:25 +0000 (16:35 +0000)]
[DWARF] Incorrect prologue end line record.

A prologue-end line record is emitted with an incorrect associated address,
which causes a debugger to show the beginning of function body to be inside
the prologue.

Patch written by Carlos Alberto Enciso.

Differential Revision: https://reviews.llvm.org/D37625

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313047 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LV] Clamp the VF to the trip count
Anna Thomas [Tue, 12 Sep 2017 16:32:45 +0000 (16:32 +0000)]
[LV] Clamp the VF to the trip count

Summary:
When the MaxVectorSize > ConstantTripCount, we should just clamp the
vectorization factor to be the ConstantTripCount.
This vectorizes loops where the TinyTripCountThreshold >= TripCount < MaxVF.

Earlier we were finding the maximum vector width, which could be greater than
the trip count itself. The Loop vectorizer does all the work for generating a
vectorizable loop, but in the end we would always choose the scalar loop (since
the VF > trip count). This allows us to choose the VF keeping in mind the trip
count if available.

This is a fix on top of rL312472.

Reviewers: Ayal, zvi, hfinkel, dneilson

Reviewed by: Ayal

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D37702

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313046 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert r313009 "[ARM] Use ADDCARRY / SUBCARRY"
Hans Wennborg [Tue, 12 Sep 2017 16:24:17 +0000 (16:24 +0000)]
Revert r313009 "[ARM] Use ADDCARRY / SUBCARRY"

This was causing PR34045 to fire again.

> This is a preparatory step for D34515 and also is being recommitted as its
> first version caused PR34045.
>
> This change:
>  - makes nodes ISD::ADDCARRY and ISD::SUBCARRY legal for i32
>  - lowering is done by first converting the boolean value into the carry flag
>    using (_, C) ← (ARMISD::ADDC R, -1) and converted back to an integer value
>    using (R, _) ← (ARMISD::ADDE 0, 0, C). An ARMISD::ADDE between the two
>    operations does the actual addition.
>  - for subtraction, given that ISD::SUBCARRY second result is actually a
>    borrow, we need to invert the value of the second operand and result before
>    and after using ARMISD::SUBE. We need to invert the carry result of
>    ARMISD::SUBE to preserve the semantics.
>  - given that the generic combiner may lower ISD::ADDCARRY and
>    ISD::SUBCARRYinto ISD::UADDO and ISD::USUBO we need to update their lowering
>    as well otherwise i64 operations now would require branches. This implies
>    updating the corresponding test for unsigned.
>  - add new combiner to remove the redundant conversions from/to carry flags
>    to/from boolean values (ARMISD::ADDC (ARMISD::ADDE 0, 0, C), -1) → C
>  - fixes PR34045
>
> Differential Revision: https://reviews.llvm.org/D35192

Also revert follow-up r313010:

> [ARM] Fix typo when creating ISD::SUB nodes
>
> In D35192, I accidentally introduced a typo when creating ISD::SUB nodes,
> giving them two values instead of one.
>
> This fails when the merge_values combiner finds one of these nodes.
>
> This change fixes PR34564.
>
> Differential Revision: https://reviews.llvm.org/D37690

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313044 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SLP] Test with mutiple uses of conditional op and wrong parent.
Alexey Bataev [Tue, 12 Sep 2017 16:15:04 +0000 (16:15 +0000)]
[SLP] Test with mutiple uses of conditional op and wrong parent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313042 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoStatically assert that enum items don't overflow storage.
Adrian Prantl [Tue, 12 Sep 2017 16:10:24 +0000 (16:10 +0000)]
Statically assert that enum items don't overflow storage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313041 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX2] Add gather/movntdqa/pmaskmov/pmovmskb/pslldq/psrldq instructions to sched...
Simon Pilgrim [Tue, 12 Sep 2017 15:52:01 +0000 (15:52 +0000)]
[X86][AVX2] Add gather/movntdqa/pmaskmov/pmovmskb/pslldq/psrldq instructions to scheduling tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313039 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRemove ancient, commented out code from TableGen, NFC
Krzysztof Parzyszek [Tue, 12 Sep 2017 15:47:31 +0000 (15:47 +0000)]
Remove ancient, commented out code from TableGen, NFC

These pieces were commented out in r98534 and r129691, i.e. 6+ years ago.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313038 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFormatting changes, add LLVM_DUMP_METHOD to a dump function, NFC
Krzysztof Parzyszek [Tue, 12 Sep 2017 15:31:26 +0000 (15:31 +0000)]
Formatting changes, add LLVM_DUMP_METHOD to a dump function, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313037 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] move related tests together; NFC
Sanjay Patel [Tue, 12 Sep 2017 15:29:28 +0000 (15:29 +0000)]
[InstCombine] move related tests together; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313036 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SLP] Fix for PHINode during horizontal reduction scanning, NFC.
Alexey Bataev [Tue, 12 Sep 2017 15:13:50 +0000 (15:13 +0000)]
[SLP] Fix for PHINode during horizontal reduction scanning, NFC.

Reduces number of loops during instructions analysis.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313035 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX2] Add further instructions to scheduling tests
Simon Pilgrim [Tue, 12 Sep 2017 15:01:20 +0000 (15:01 +0000)]
[X86][AVX2] Add further instructions to scheduling tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313032 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix a couple of comments, NFC
Krzysztof Parzyszek [Tue, 12 Sep 2017 14:10:48 +0000 (14:10 +0000)]
Fix a couple of comments, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313030 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX2] Add integer broadcast scheduling tests
Simon Pilgrim [Tue, 12 Sep 2017 12:59:20 +0000 (12:59 +0000)]
[X86][AVX2] Add integer broadcast scheduling tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313026 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SystemZ] Add the CoveredBySubRegs bit to GPR64, GPR128 and FPR128 registers.
Jonas Paulsson [Tue, 12 Sep 2017 12:11:29 +0000 (12:11 +0000)]
[SystemZ]  Add the CoveredBySubRegs bit to GPR64, GPR128 and FPR128 registers.

This bit is needed in order for the CalleeSavedRegs list to automatically
include the super registers if all of their subregs are present.

Thanks to Wei Mi for initially indicating this deficiency in the SystemZ
backend.

Review: Ulrich Weigand.
https://bugs.llvm.org/show_bug.cgi?id=34550

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313023 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX2] Add additional fp-broadcast/subvector/shuffle scheduling tests
Simon Pilgrim [Tue, 12 Sep 2017 11:17:01 +0000 (11:17 +0000)]
[X86][AVX2] Add additional fp-broadcast/subvector/shuffle scheduling tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313022 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX] Add vperm2f128 scheduling test
Simon Pilgrim [Tue, 12 Sep 2017 11:10:59 +0000 (11:10 +0000)]
[X86][AVX] Add vperm2f128 scheduling test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313021 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX2] Remove old (unused) intrinsic declarations
Simon Pilgrim [Tue, 12 Sep 2017 11:09:30 +0000 (11:09 +0000)]
[X86][AVX2] Remove old (unused) intrinsic declarations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313020 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] ISel: Add some debug messages to LowerBUILDVECTOR. NFC.
Sjoerd Meijer [Tue, 12 Sep 2017 10:24:12 +0000 (10:24 +0000)]
[AArch64] ISel: Add some debug messages to LowerBUILDVECTOR. NFC.

Differential Revision: https://reviews.llvm.org/D37676

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313017 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Lower _mm[256|512]_[mask[z]]_avg_epu[8|16] intrinsics to native llvm IR
Yael Tsafrir [Tue, 12 Sep 2017 07:50:35 +0000 (07:50 +0000)]
[X86] Lower _mm[256|512]_[mask[z]]_avg_epu[8|16] intrinsics to native llvm IR

Differential Revision: https://reviews.llvm.org/D37560

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313013 91177308-0d34-0410-b5e6-96231b3b80d8