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6 years ago[SCEV] Simplify zext/trunc idiom that appears when handling bitmasks.
Justin Lebar [Thu, 14 Jun 2018 17:13:48 +0000 (17:13 +0000)]
[SCEV] Simplify zext/trunc idiom that appears when handling bitmasks.

Summary:
Specifically, we transform

  zext(2^K * (trunc X to iN)) to iM ->
  2^K * (zext(trunc X to i{N-K}) to iM)<nuw>

This is helpful because pulling the 2^K out of the zext allows further
optimizations.

Reviewers: sanjoy

Subscribers: hiraditya, llvm-commits, timshen

Differential Revision: https://reviews.llvm.org/D48158

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334737 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SCEV] Simplify trunc-of-add/mul to add/mul-of-trunc under more circumstances.
Justin Lebar [Thu, 14 Jun 2018 17:13:35 +0000 (17:13 +0000)]
[SCEV] Simplify trunc-of-add/mul to add/mul-of-trunc under more circumstances.

Summary:
Previously we would do this simplification only if it did not introduce
any new truncs (excepting new truncs which replace other cast ops).

This change weakens this condition: If the number of truncs stays the
same, but we're able to transform trunc(X + Y) to X + trunc(Y), that's
still simpler, and it may open up additional transformations.

While we're here, also clean up some duplicated code.

Reviewers: sanjoy

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D48160

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334736 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SCEV] Fix indentation and combine two if statements in getMulExpr, NFC.
Justin Lebar [Thu, 14 Jun 2018 17:13:22 +0000 (17:13 +0000)]
[SCEV] Fix indentation and combine two if statements in getMulExpr, NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334735 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "[MC] Factor MCObjectStreamer::addFragmentAtoms out of MachO streamer."
Sam Clegg [Thu, 14 Jun 2018 17:11:19 +0000 (17:11 +0000)]
Revert "[MC] Factor MCObjectStreamer::addFragmentAtoms out of MachO streamer."

This reverts rL331412.  We didn't up using fragment atoms
in the wasm object writer after all.

Differential Revision: https://reviews.llvm.org/D48173

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334734 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AMDGPU] Document the AMDGPU LLVM attributes
Tony Tye [Thu, 14 Jun 2018 16:40:10 +0000 (16:40 +0000)]
[AMDGPU] Document the AMDGPU LLVM attributes

Differential Revision: https://reviews.llvm.org/D48101

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334733 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert rL334704: "[DebugInfo] Check size of variable in ConvertDebugDeclareToDebugValue"
Bjorn Pettersson [Thu, 14 Jun 2018 16:08:22 +0000 (16:08 +0000)]
Revert rL334704: "[DebugInfo] Check size of variable in ConvertDebugDeclareToDebugValue"

This reverts commit r334704.

Buildbots detected an assertion in "test tsan in debug compiler-rt build".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334732 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAvoid unused variable in non-assert builds.
Nirav Dave [Thu, 14 Jun 2018 15:55:15 +0000 (15:55 +0000)]
Avoid unused variable in non-assert builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334731 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-mca] Add another test for partial register stalls.
Andrea Di Biagio [Thu, 14 Jun 2018 15:54:34 +0000 (15:54 +0000)]
[llvm-mca] Add another test for partial register stalls.

This test checks that a physical register is correctly allocated for the partial
write to register BX.
The ADD instruction has to wait for the write to RBX (and BX) before being
executed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334730 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DAG] Avoid needing to walk out legalization tables. NFCI.
Nirav Dave [Thu, 14 Jun 2018 15:46:23 +0000 (15:46 +0000)]
[DAG] Avoid needing to walk out legalization tables. NFCI.

To avoid redundant work, during DAG legalization we keep tables
mapping pre-legalized SDValues to post-legalized SDValues and a
SDValue-to-SDValue map to enable fast node replacements. However, as
the keys are nodes which may be reused it is possible that an entry in
a table refers to a now deleted node N (that should have been renamed
by the value replacement map) while a new node N' exists. If N' is
then replaced that entry would be wrong. Previously we avoided this by
when potentially violating this property, walking every table and
updating all node pointers. This is very expensive but hopefully rare
occurance.

This patch assigns each instance of a SDValue used in legalization a
unique id and uses these ids in the legalization tables. This avoids
any such aliasing issue, avoiding the full table search and allowing
more aggressive incremental table pruning.

In some cases this is a 1000x speedup to compilation.

Reviewers: jyknight, echristo, bogner, tra

Reviewed By: bogner

Subscribers: dberris, grandinj, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D47959

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334729 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add more vector instructions to the memory folding table using the autogenerate...
Craig Topper [Thu, 14 Jun 2018 15:40:31 +0000 (15:40 +0000)]
[X86] Add more vector instructions to the memory folding table using the autogenerated table as a guide.

The test cahnge is because we now fold stack reload into RNDSCALE and RNDSCALE can be turned into ROUND by EVEX->VEX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334728 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove '128' from the internal name of some scalar FP instructions to be consis...
Craig Topper [Thu, 14 Jun 2018 15:40:30 +0000 (15:40 +0000)]
[X86] Remove '128' from the internal name of some scalar FP instructions to be consistent with other scalar instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334727 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Disable load unfolding for a bunch of instruction where unfolding would increas...
Craig Topper [Thu, 14 Jun 2018 15:40:29 +0000 (15:40 +0000)]
[X86] Disable load unfolding for a bunch of instruction where unfolding would increase the size of the load.

Found by an audit of the manual table vs the autogenerated table.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334726 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove NotMemoryFoldable from some AVX/AVX512 scalar instructions.
Craig Topper [Thu, 14 Jun 2018 15:40:27 +0000 (15:40 +0000)]
[X86] Remove NotMemoryFoldable from some AVX/AVX512 scalar instructions.

Some of these instructions are already in the manual folding table so we should have them in the auto table too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334725 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ORC] Filter out self-dependencies in VSO::addDependencies.
Lang Hames [Thu, 14 Jun 2018 15:32:59 +0000 (15:32 +0000)]
[ORC] Filter out self-dependencies in VSO::addDependencies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334724 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ORC] Assert that the query argument to VSO::lookup must be non-null.
Lang Hames [Thu, 14 Jun 2018 15:32:59 +0000 (15:32 +0000)]
[ORC] Assert that the query argument to VSO::lookup must be non-null.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334723 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ORC] Add a WaitUntilReady argument to blockingLookup.
Lang Hames [Thu, 14 Jun 2018 15:32:58 +0000 (15:32 +0000)]
[ORC] Add a WaitUntilReady argument to blockingLookup.

If WaitUntilReady is set to true then blockingLookup will return once all
requested symbols are ready. If WaitUntilReady is set to false then
blockingLookup will return as soon as all requested symbols have been
resolved. In the latter case, if any error occurs in finalizing the symbols it
will be reported to the ExecutionSession, rather than returned by
blockingLookup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334722 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ORC] Strip the Materializing flag off finalized symbols in VSOs.
Lang Hames [Thu, 14 Jun 2018 15:32:56 +0000 (15:32 +0000)]
[ORC] Strip the Materializing flag off finalized symbols in VSOs.

Finalized symbols are no longer in the materializing state.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334721 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[docs] Update CompilerWriterInfo.rst for MIPS
Simon Dardis [Thu, 14 Jun 2018 15:16:37 +0000 (15:16 +0000)]
[docs] Update CompilerWriterInfo.rst for MIPS

Update the URL of where the documentation can be found.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334720 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[EarlyCSE] Fix MSVC build. NFCI.
Simon Pilgrim [Thu, 14 Jun 2018 14:22:03 +0000 (14:22 +0000)]
[EarlyCSE] Fix MSVC build. NFCI.

MSVC doesn't let you assign different lambdas through a ternary operator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334715 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CostModel][AArch64] Add cost tests for ALTERNATE/SELECT style shuffle masks
Simon Pilgrim [Thu, 14 Jun 2018 14:20:20 +0000 (14:20 +0000)]
[CostModel][AArch64] Add cost tests for ALTERNATE/SELECT style shuffle masks

Precursor to fixing a regression with SLP vectorizer for supporting SELECT shuffles (vs the current ALTERNATE)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334714 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[MC] Move MCAssembler::dump into the correct cpp file. NFC
Sam Clegg [Thu, 14 Jun 2018 14:04:23 +0000 (14:04 +0000)]
[MC] Move MCAssembler::dump into the correct cpp file. NFC

Differential Revision: https://reviews.llvm.org/D46556

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334713 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DWARFv5] Tolerate files not all having an MD5 checksum.
Paul Robinson [Thu, 14 Jun 2018 13:38:20 +0000 (13:38 +0000)]
[DWARFv5] Tolerate files not all having an MD5 checksum.

In some cases, for example when compiling a preprocessed file, the
front-end is not able to provide an MD5 checksum for all files. When
that happens, omit the MD5 checksums from the final DWARF, because
DWARF doesn't have a way to indicate that some but not all files have
a checksum.

When assembling a .s file, and some but not all .file directives
provide an MD5 checksum, issue a warning and don't emit MD5 into the
DWARF.

Fixes PR37623.

Differential Revision: https://reviews.llvm.org/D48135

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334710 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips] Correct predicates for MSA pseudo instructions
Simon Dardis [Thu, 14 Jun 2018 13:03:53 +0000 (13:03 +0000)]
[mips] Correct predicates for MSA pseudo instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334708 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[EarlyCSE] Propagate conditions of AND and OR instructions
Max Kazantsev [Thu, 14 Jun 2018 13:02:13 +0000 (13:02 +0000)]
[EarlyCSE] Propagate conditions of AND and OR instructions

This patches teaches EarlyCSE to figure out that if `and i1 %x, %y` is true then both
`%x` and `%y` are true in the taken branch, and if `or i1 %x, %y` is false then both
`%x` and `%y` are false in non-taken branch. Fix for PR37635.

Differential Revision: https://reviews.llvm.org/D47574
Reviewed By: reames

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334707 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[TableGen] Move some shared_ptrs to avoid unnecessary copies (NFC).
Florian Hahn [Thu, 14 Jun 2018 11:56:19 +0000 (11:56 +0000)]
[TableGen] Move some shared_ptrs to avoid unnecessary copies (NFC).

Those changes were suggested post-commit for D47463.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334706 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DebugInfo] Check size of variable in ConvertDebugDeclareToDebugValue
Bjorn Pettersson [Thu, 14 Jun 2018 11:23:42 +0000 (11:23 +0000)]
[DebugInfo] Check size of variable in ConvertDebugDeclareToDebugValue

Summary:
Do not convert a DbgDeclare to DbgValue if the store
instruction only refer to a fragment of the variable
described by the DbgDeclare.

Problem was seen when for example having an alloca for an
array or struct, and there were stores to individual elements.
In the past we inserted a DbgValue intrinsics for each store,
just as if the store wrote the whole variable.

When handling store instructions we insert a DbgValue that
indicates that the variable is "undefined", as we do not know
which part of the variable that is updated by the store.

When ConvertDebugDeclareToDebugValue is used with a load/phi
instruction we assert that the referenced value is large enough
to cover the whole variable. Afaict this should be true for all
scenarios where those methods are used on trunk. If the assert
blows in the future I guess we could simply skip to insert a
dbg.value instruction.

In the future I think we should examine which part of the variable
that is accessed, and add a DbgValue instrinsic with an appropriate
DW_OP_LLVM_fragment expression.

Reviewers: dblaikie, aprantl, rnk

Reviewed By: aprantl

Subscribers: JDevlieghere, llvm-commits

Tags: #debug-info

Differential Revision: https://reviews.llvm.org/D48024

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334704 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SLPVectorizer] Remove RawInstructionsData/getMainOpcode and merge into getSameOpcode
Simon Pilgrim [Thu, 14 Jun 2018 10:25:19 +0000 (10:25 +0000)]
[SLPVectorizer] Remove RawInstructionsData/getMainOpcode and merge into getSameOpcode

This is part of the work to cleanup use of 'alternate' ops so we can use the more general SK_Select shuffle type.

Only getSameOpcode calls getMainOpcode and much of the logic is repeated in both functions. This will require some reworking of D28907 but that patch has hit trouble and is unlikely to be completed anytime soon.

Differential Revision: https://reviews.llvm.org/D48120

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334701 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CostModel] Cleanup isSingleSourceVectorMask to match other shuffle matchers. NFCI.
Simon Pilgrim [Thu, 14 Jun 2018 09:48:19 +0000 (09:48 +0000)]
[CostModel] Cleanup isSingleSourceVectorMask to match other shuffle matchers. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334699 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CostModel] Recognise REVERSE shuffle mask if the elements come from the second src
Simon Pilgrim [Thu, 14 Jun 2018 09:35:00 +0000 (09:35 +0000)]
[CostModel] Recognise REVERSE shuffle mask if the elements come from the second src

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334698 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-exegesis] Use BenchmarkResult::Instructions instead of OpcodeName
Clement Courbet [Thu, 14 Jun 2018 06:57:52 +0000 (06:57 +0000)]
[llvm-exegesis] Use BenchmarkResult::Instructions instead of OpcodeName

Summary:
Get rid of OpcodeName.

To remove the opcode name from an old file:
```
cat old_file | sed '/opcode_name.*/d'
```

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48121

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334691 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[NFC] fix trivial typos in comments
Hiroshi Inoue [Thu, 14 Jun 2018 05:41:49 +0000 (05:41 +0000)]
[NFC] fix trivial typos in comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334687 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[x86] fix mappings of cvttp2si/cvttp2ui x86 intrinsics to x86-specific nodes and...
Craig Topper [Thu, 14 Jun 2018 03:16:58 +0000 (03:16 +0000)]
[x86] fix mappings of cvttp2si/cvttp2ui x86 intrinsics to x86-specific nodes and isel patterns (PR37551)

Summary:
The tests in:
https://bugs.llvm.org/show_bug.cgi?id=37751
...show miscompiles because we wrongly mapped and folded x86-specific intrinsics into generic DAG nodes.

This patch corrects the mappings in X86IntrinsicsInfo.h and adds isel matching corresponding to the new patterns. The complete tests for the failure cases should be in avx-cvttp2si.ll and sse-cvttp2si.ll and avx512-cvttp2i.ll

Reviewers: RKSimon, gbedwell, spatel

Reviewed By: spatel

Subscribers: mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D47993

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334685 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-mca] Introduce the ExecuteStage (was originally the Scheduler class).
Matt Davis [Thu, 14 Jun 2018 01:20:18 +0000 (01:20 +0000)]
[llvm-mca] Introduce the ExecuteStage (was originally the Scheduler class).

Summary: This patch transforms the Scheduler class into the ExecuteStage.  Most of the logic remains.

Reviewers: andreadb, RKSimon, courbet

Reviewed By: andreadb

Subscribers: mgorny, javed.absar, tschuett, gbedwell, llvm-commits

Differential Revision: https://reviews.llvm.org/D47246

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334679 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU/GlobalISel: Implement select() for 32-bit G_FADD and G_FMUL
Tom Stellard [Wed, 13 Jun 2018 22:30:47 +0000 (22:30 +0000)]
AMDGPU/GlobalISel: Implement select() for 32-bit G_FADD and G_FMUL

Reviewers: arsenm, nhaehnle

Reviewed By: arsenm

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

Differential Revision: https://reviews.llvm.org/D46171

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334665 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "Enable ThreadPool to queue tasks that return values."
Zachary Turner [Wed, 13 Jun 2018 21:24:19 +0000 (21:24 +0000)]
Revert "Enable ThreadPool to queue tasks that return values."

This is failing to compile when LLVM_ENABLE_THREADS is false,
and the fix is not immediately obvious, so reverting while I look
into it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334658 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoReland: [Timers] Use the pass argument name for JSON keys in time-passes
Francis Visoiu Mistrih [Wed, 13 Jun 2018 21:03:56 +0000 (21:03 +0000)]
Reland: [Timers] Use the pass argument name for JSON keys in time-passes

When using clang --save-stats -mllvm -time-passes, both timers and stats
end up in the same json file.

We could end up with things like:

{
  "asm-printer.EmittedInsts": 1,
  "time.pass.Virtual Register Map.wall": 2.9015541076660156e-04,
  "time.pass.Virtual Register Map.user": 2.0500000000000379e-04,
  "time.pass.Virtual Register Map.sys": 8.5000000000001741e-05,
}

This patch makes use of the pass argument name (if available) in the
JSON key to end up with things like:

{
  "asm-printer.EmittedInsts": 1,
  "time.pass.virtregmap.wall": 2.9015541076660156e-04,
  "time.pass.virtregmap.user": 2.0500000000000379e-04,
  "time.pass.virtregmap.sys": 8.5000000000001741e-05,
}

This also helps avoiding to write another JSON printer to handle all the
cases that we could have in our pass names.

Fixed test instead of adding a new one originally from r334649.

Differential Revision: https://reviews.llvm.org/D48109

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334657 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[TableGen] Make getOnlyTree return a const ref (NFC)
Florian Hahn [Wed, 13 Jun 2018 20:59:53 +0000 (20:59 +0000)]
[TableGen] Make getOnlyTree return a const ref (NFC)

This avoids some unnecessary copies of shared_ptrs.
Those changes were suggested post-commit for D47463.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334656 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUpdate comments of CheckedArithmetic API based on Philip Reames feedback.
George Karpenkov [Wed, 13 Jun 2018 20:48:53 +0000 (20:48 +0000)]
Update comments of CheckedArithmetic API based on Philip Reames feedback.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334655 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[WinASan] Don't instrument globals in sections containing '$'
Reid Kleckner [Wed, 13 Jun 2018 20:47:21 +0000 (20:47 +0000)]
[WinASan] Don't instrument globals in sections containing '$'

Such globals are very likely to be part of a sorted section array, such
the .CRT sections used for dynamic initialization. The uses its own
sorted sections called ATL$__a, ATL$__m, and ATL$__z. Instead of special
casing them, just look for the dollar sign, which is what invokes linker
section sorting for COFF.

Avoids issues with ASan and the ATL uncovered after we started
instrumenting comdat globals on COFF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334653 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert r334649 "[Timers] Use the pass argument name for JSON keys in time-passes"
Francis Visoiu Mistrih [Wed, 13 Jun 2018 20:44:02 +0000 (20:44 +0000)]
Revert r334649 "[Timers] Use the pass argument name for JSON keys in time-passes"

This reverts commit r334649.

This breaks a test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334651 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Timers] Use the pass argument name for JSON keys in time-passes
Francis Visoiu Mistrih [Wed, 13 Jun 2018 20:09:59 +0000 (20:09 +0000)]
[Timers] Use the pass argument name for JSON keys in time-passes

When using clang --save-stats -mllvm -time-passes, both timers and stats
end up in the same json file.

We could end up with things like:

{
  "asm-printer.EmittedInsts": 1,
  "time.pass.Virtual Register Map.wall": 2.9015541076660156e-04,
  "time.pass.Virtual Register Map.user": 2.0500000000000379e-04,
  "time.pass.Virtual Register Map.sys": 8.5000000000001741e-05,
}

This patch makes use of the pass argument name (if available) in the
JSON key to end up with things like:

{
  "asm-printer.EmittedInsts": 1,
  "time.pass.virtregmap.wall": 2.9015541076660156e-04,
  "time.pass.virtregmap.user": 2.0500000000000379e-04,
  "time.pass.virtregmap.sys": 8.5000000000001741e-05,
}

This also helps avoiding to write another JSON printer to handle all the
cases that we could have in our pass names.

Differential Revision: https://reviews.llvm.org/D48109

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334649 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Move RCPSSr_Int, RSQRTSSr_Int, SQRTSDr_Int, SQRTSSr_Int to the correct load...
Craig Topper [Wed, 13 Jun 2018 20:03:42 +0000 (20:03 +0000)]
[X86] Move RCPSSr_Int, RSQRTSSr_Int, SQRTSDr_Int, SQRTSSr_Int to the correct load folding table.

They were in the operand 1 folding table, but their foldable operand is operand 2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334648 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd missing #include.
Zachary Turner [Wed, 13 Jun 2018 19:37:41 +0000 (19:37 +0000)]
Add missing #include.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334644 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoEnable ThreadPool to support tasks that return values.
Zachary Turner [Wed, 13 Jun 2018 19:29:16 +0000 (19:29 +0000)]
Enable ThreadPool to support tasks that return values.

Previously ThreadPool could only queue async "jobs", i.e. work
that was done for its side effects and not for its result.  It's
useful occasionally to queue async work that returns a value.
From an API perspective, this is very intuitive.  The previous
API just returned a shared_future<void>, so all we need to do is
make it return a shared_future<T>, where T is the type of value
that the operation returns.

Making this work required a little magic, but ultimately it's not
too bad.  Instead of keeping a shared queue<packaged_task<void()>>
we just keep a shared queue<unique_ptr<TaskBase>>, where TaskBase
is a class with a pure virtual execute() method, then have a
templated derived class that stores a packaged_task<T()>.  Everything
else works out pretty cleanly.

Differential Revision: https://reviews.llvm.org/D48115

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334643 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AMDGPU] Corrected computeKnownBits for V_PERM_B32
Stanislav Mekhanoshin [Wed, 13 Jun 2018 18:52:54 +0000 (18:52 +0000)]
[AMDGPU] Corrected computeKnownBits for V_PERM_B32

Differential Revision: https://reviews.llvm.org/D48133

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334640 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd checkMulAdd helper function to CheckedArithmetic
George Karpenkov [Wed, 13 Jun 2018 18:32:02 +0000 (18:32 +0000)]
Add checkMulAdd helper function to CheckedArithmetic

Multiplication followed by addition
(https://en.wikipedia.org/wiki/Multiply–accumulate_operation) is a
sufficiently common use-case to warrant a separate helper.

Differential Revision: https://reviews.llvm.org/D48138

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334635 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoChange checked arithmetic functions API to return Optional
George Karpenkov [Wed, 13 Jun 2018 18:31:43 +0000 (18:31 +0000)]
Change checked arithmetic functions API to return Optional

Returning optional is much safer.
The previous API had potential to cause use of undefined variables, if
the value passed by pointer was accidentally read afterwards.

Differential Revision: https://reviews.llvm.org/D48137

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334634 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-mca] Fixed a bug in the logic that checks if a memory operation is ready to...
Andrea Di Biagio [Wed, 13 Jun 2018 18:30:14 +0000 (18:30 +0000)]
[llvm-mca] Fixed a bug in the logic that checks if a memory operation is ready to execute.

Fixes PR37790.

In some (very rare) cases, the LSUnit (Load/Store unit) was wrongly marking a
load (or store) as "ready to execute" effectively bypassing older memory barrier
instructions.

To reproduce this bug, the memory barrier must be the first instruction in the
input assembly sequence, and it doesn't have to perform any register writes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334633 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CMake] Handle 'libtool' being at a path with spaces in it.
Jordan Rose [Wed, 13 Jun 2018 18:21:47 +0000 (18:21 +0000)]
[CMake] Handle 'libtool' being at a path with spaces in it.

This can happen on macOS if the user's Xcode is at a path with spaces in it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334632 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoLTO: Keep file handles open for memory mapped files.
Peter Collingbourne [Wed, 13 Jun 2018 18:03:14 +0000 (18:03 +0000)]
LTO: Keep file handles open for memory mapped files.

On Windows we've observed that if you open a file, write to it, map it into
memory and close the file handle, the contents of the memory mapping can
sometimes be incorrect. That was what we did when adding an entry to the
ThinLTO cache using the TempFile and MemoryBuffer classes, and it was causing
intermittent build failures on Chromium's ThinLTO bots on Windows. More
details are in the associated Chromium bug (crbug.com/786127).

We can prevent this from happening by keeping a handle to the file open while
the mapping is active. So this patch changes the mapped_file_region class to
duplicate the file handle when mapping the file and close it upon unmapping it.

One gotcha is that the file handle that we keep open must not have been
created with FILE_FLAG_DELETE_ON_CLOSE, as otherwise the operating system
will prevent other processes from opening the file. We can achieve this
by avoiding the use of FILE_FLAG_DELETE_ON_CLOSE altogether.  Instead,
we use SetFileInformationByHandle with FileDispositionInfo to manage the
delete-on-close bit. This lets us remove the hack that we used to use to
clear the delete-on-close bit on a file opened with FILE_FLAG_DELETE_ON_CLOSE.

A downside of using SetFileInformationByHandle/FileDispositionInfo as
opposed to FILE_FLAG_DELETE_ON_CLOSE is that it prevents us from using
CreateFile to open the file while the flag is set, even within the same
process. This doesn't seem to matter for almost every client of TempFile,
except for LockFileManager, which calls sys::fs::create_link to create a
hard link from the lock file, and in the process of doing so tries to open
the file. To prevent this change from breaking LockFileManager I changed it
to stop using TempFile by effectively reverting r318550.

Differential Revision: https://reviews.llvm.org/D48051

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334630 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add one more intrinsic and test cases to avx512-cvttp2i.ll.
Craig Topper [Wed, 13 Jun 2018 17:55:13 +0000 (17:55 +0000)]
[X86] Add one more intrinsic and test cases to avx512-cvttp2i.ll.

spatel noticed it was missing in D47993.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334629 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoIR: fix documentation markup
Saleem Abdulrasool [Wed, 13 Jun 2018 17:51:27 +0000 (17:51 +0000)]
IR: fix documentation markup

Use `\brief` instead of `\Brief`.  NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334627 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AMDGPU] Change enqueue kernel handle type
Yaxun Liu [Wed, 13 Jun 2018 17:31:51 +0000 (17:31 +0000)]
[AMDGPU] Change enqueue kernel handle type

Currently the handle type is a global pointer which holds 8 bytes.
We need a larger type which hold 16 bytes, therefore change it
to [i64 x 2].

Differential Revision: https://reviews.llvm.org/D48094

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334625 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CostModel][X86] Test showing failure to recognise REVERSE shuffle mask if the elemen...
Simon Pilgrim [Wed, 13 Jun 2018 17:12:11 +0000 (17:12 +0000)]
[CostModel][X86] Test showing failure to recognise REVERSE shuffle mask if the elements come from the second src

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334623 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AMDGPU][MC] Enabled parsing of relocations on VALU instructions
Dmitry Preobrazhensky [Wed, 13 Jun 2018 17:02:03 +0000 (17:02 +0000)]
[AMDGPU][MC] Enabled parsing of relocations on VALU instructions

See bug 37566: https://bugs.llvm.org/show_bug.cgi?id=37566

Reviewers: artem.tamazov, arsenm, nhaehnle

Differential Revision: https://reviews.llvm.org/D47884

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334622 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CostModel] Recognise BROADCAST shuffle mask if the elements come from the second src
Simon Pilgrim [Wed, 13 Jun 2018 16:52:02 +0000 (16:52 +0000)]
[CostModel] Recognise BROADCAST shuffle mask if the elements come from the second src

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334620 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert: [llvm-mca] Flush the output stream before we start the analysis of a new...
Andrea Di Biagio [Wed, 13 Jun 2018 16:33:52 +0000 (16:33 +0000)]
Revert: [llvm-mca] Flush the output stream before we start the analysis of a new code region. NFC

Not sure why, but it breaks buildbot clang-cmake-armv8-full.
It causes a failure in TEST 'Xray-armhf-linux :: TestCases/Posix/profiling-single-threaded.cc'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334617 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CostModel][X86] Test showing failure to recognise BROADCAST shuffle mask if the...
Simon Pilgrim [Wed, 13 Jun 2018 16:33:42 +0000 (16:33 +0000)]
[CostModel][X86] Test showing failure to recognise BROADCAST shuffle mask if the elements come from the second src

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334616 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-mca] Flush the output stream before we start the analysis of a new code region...
Andrea Di Biagio [Wed, 13 Jun 2018 15:43:56 +0000 (15:43 +0000)]
[llvm-mca] Flush the output stream before we start the analysis of a new code region. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334610 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AMDGPU][MC][GFX8][GFX9] Allow LDS direct reads for BUFFER_LOAD_DWORDX2/X3/X4
Dmitry Preobrazhensky [Wed, 13 Jun 2018 15:32:46 +0000 (15:32 +0000)]
[AMDGPU][MC][GFX8][GFX9] Allow LDS direct reads for BUFFER_LOAD_DWORDX2/X3/X4

See bug 37653: https://bugs.llvm.org/show_bug.cgi?id=37653

Reviewers: artem.tamazov, arsenm

Differential Revision: https://reviews.llvm.org/D47885

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334609 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DAGCombiner] remove hasOneUse() check from fadd constants transform
Sanjay Patel [Wed, 13 Jun 2018 15:22:48 +0000 (15:22 +0000)]
[DAGCombiner] remove hasOneUse() check from fadd constants transform

We're constant folding here, so we shouldn't check uses. This matches
the IR optimizer behavior.

The x86 test shows the expected win. The AArch64 test shows something
else. This only seems to happen if the "generic" AArch64 CPU model is
used by MachineCombiner, so I'll file a bug report to follow-up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334608 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU: Move isSDNodeSourceOfDivergence() implementation to SITargetLowering
Tom Stellard [Wed, 13 Jun 2018 15:06:37 +0000 (15:06 +0000)]
AMDGPU: Move isSDNodeSourceOfDivergence() implementation to SITargetLowering

Summary:
The code that handles ISD:Register and ISD::CopyFromReg assumes
the target is amdgcn, so this is broken on r600.  We don't
need this analysis on r600 anyway so we can safely move
it to SITargetLowering.

Reviewers: alex-t, arsenm, nhaehnle

Reviewed By: arsenm

Subscribers: msearles, kzhuravl, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D46298

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334607 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[x86] add test for fadd with more than one use; NFC
Sanjay Patel [Wed, 13 Jun 2018 15:01:07 +0000 (15:01 +0000)]
[x86] add test for fadd with more than one use; NFC

The equivalent AArch64 test added at rL334556 isn't showing
the expected output from the DAGCombiner code change that
would fix this example. That's a machine combiner bug from
what I see.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334605 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[FPEnv] Expand constrained FP operations
Cameron McInally [Wed, 13 Jun 2018 14:32:12 +0000 (14:32 +0000)]
[FPEnv] Expand constrained FP operations

Add a helper function to expand constrained FP operations as needed.
Note that the Strict POWI operation is not handled in this patch since
the format is slightly different from the others.

Differential Revision: https://reviews.llvm.org/D47491

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334603 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDo not enforce absolute path argv0 in windows
Hans Wennborg [Wed, 13 Jun 2018 14:29:26 +0000 (14:29 +0000)]
Do not enforce absolute path argv0 in windows

Even if we support no-canonical-prefix on
clang-cl(https://reviews.llvm.org/D47480), argv0 becomes absolute path
in clang-cl and that embeds absolute path in /showIncludes.

This patch removes such full path normalization from InitLLVM on
windows, and that removes absolute path from clang-cl output
(obj/stdout/stderr) when debug flag is disabled.

Patch by Takuto Ikuta!

Differential Revision https://reviews.llvm.org/D47578

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334602 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-exegesis] Fix buildbot - power was using native target for X86.
Guillaume Chatelet [Wed, 13 Jun 2018 14:07:36 +0000 (14:07 +0000)]
[llvm-exegesis] Fix buildbot - power was using native target for X86.

Reviewers: courbet

Reviewed By: courbet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48125

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334601 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-exegesis] Fix failing assert when creating Snippet for LAHF.
Guillaume Chatelet [Wed, 13 Jun 2018 13:53:56 +0000 (13:53 +0000)]
[llvm-exegesis] Fix failing assert when creating Snippet for LAHF.

Reviewers: courbet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48123

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334599 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "Improve handling of COPY instructions with identical value numbers"
Krzysztof Parzyszek [Wed, 13 Jun 2018 13:49:06 +0000 (13:49 +0000)]
Revert "Improve handling of COPY instructions with identical value numbers"

This reverts r334594, it breaks buildbots and fails with expensive checks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334598 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-exegesis] Cleaner design without mutable data.
Guillaume Chatelet [Wed, 13 Jun 2018 13:24:41 +0000 (13:24 +0000)]
[llvm-exegesis] Cleaner design without mutable data.

Summary: Previous design was relying on the 'mutate' keyword and was quite confusing. This version separate mutable from immutable data and makes it clearer what changes and what doesn't.

Reviewers: courbet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48020

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334596 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips][microMIPS] Extending size reduction pass with LWP and SWP
Zoran Jovanovic [Wed, 13 Jun 2018 12:51:37 +0000 (12:51 +0000)]
[mips][microMIPS] Extending size reduction pass with LWP and SWP
Author: milena.vujosevic.janicic
Reviewers: sdardis
The patch extends size reduction pass for MicroMIPS.
It introduces reduction of two instructions into one instruction:
Two SW instructions are transformed into one SWP instrucition.
Two LW instructions are transformed into one LWP instrucition.
Differential Revision: https://reviews.llvm.org/D39115

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334595 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoImprove handling of COPY instructions with identical value numbers
Krzysztof Parzyszek [Wed, 13 Jun 2018 12:47:17 +0000 (12:47 +0000)]
Improve handling of COPY instructions with identical value numbers

Differential Revision: https://reviews.llvm.org/D48102

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334594 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[x86] eliminate even more sign-bit tests with vector select
Sanjay Patel [Wed, 13 Jun 2018 12:28:32 +0000 (12:28 +0000)]
[x86] eliminate even more sign-bit tests with vector select

This shortcoming was noted in D47330, and the test diffs show we already
had other examples where we failed to fold to a SHRUNKBLEND:

/// Dynamic (non-constant condition) vector blend where only the sign bits
/// of the condition elements are used. This is used to enforce that the
/// condition mask is not valid for generic VSELECT optimizations.

This patch implements an idea from D48043 and would obsolete that patch
because it catches more cases (notable the AVX1 case that was missed there).
All we're doing is allowing the existing transform to fire more often by
removing the post-legalize constraint. All of the relevant feature checks
and other predicates are left as-is.

Differential Revision: https://reviews.llvm.org/D48078

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334592 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[RISCV] Add codegen support for atomic load/stores with RV32A
Alex Bradbury [Wed, 13 Jun 2018 12:04:51 +0000 (12:04 +0000)]
[RISCV] Add codegen support for atomic load/stores with RV32A

Fences are inserted according to table A.6 in the current draft of version 2.3
of the RISC-V Instruction Set Manual, which incorporates the memory model
changes and definitions contributed by the RISC-V Memory Consistency Model
task group.

Instruction selection failures will now occur for 8/16/32-bit atomicrmw and
cmpxchg operations when targeting RV32IA until lowering for these operations
is added in a follow-on patch.

Differential Revision: https://reviews.llvm.org/D47589

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334591 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[RISCV] Codegen support for atomic operations on RV32I
Alex Bradbury [Wed, 13 Jun 2018 11:58:46 +0000 (11:58 +0000)]
[RISCV] Codegen support for atomic operations on RV32I

This patch adds lowering for atomic fences and relies on AtomicExpandPass to
lower atomic loads/stores, atomic rmw, and cmpxchg to __atomic_* libcalls.

test/CodeGen/RISCV/atomic-* are modelled on the exhaustive
test/CodeGen/PPC/atomics-regression.ll, and will prove more useful once RV32A
codegen support is introduced.

Fence mappings are taken from table A.6 in the current draft of version 2.3 of
the RISC-V Instruction Set Manual, which incorporates the memory model changes
and definitions contributed by the RISC-V Memory Consistency Model task group.

Differential Revision: https://reviews.llvm.org/D47587

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334590 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SLPVectorizer] getSameOpcode - remove useless cast [NFC]
Simon Pilgrim [Wed, 13 Jun 2018 10:49:24 +0000 (10:49 +0000)]
[SLPVectorizer] getSameOpcode - remove useless cast [NFC]

There's no need to cast the base Value to an Instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334588 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SLPVectorizer] getSameOpcode - remove unusued alternate code [NFC]
Simon Pilgrim [Wed, 13 Jun 2018 10:14:27 +0000 (10:14 +0000)]
[SLPVectorizer] getSameOpcode - remove unusued alternate code [NFC]

We early-out for the case where we don't use alternate opcodes, so no need to check for it later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334587 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[TableGen] Emit a fatal error on inconsistencies in resource units vs cycles.
Clement Courbet [Wed, 13 Jun 2018 09:41:49 +0000 (09:41 +0000)]
[TableGen] Emit a fatal error on inconsistencies in resource units vs cycles.

Summary:
For targets I'm not familiar with, I've automatically made the "default to 1 for each resource" behaviour explicit in the td files.
For more obvious cases, I've ventured a fix.

Some notes:
 - Exynos is especially fishy.
 - AArch64SchedThunderX2T99.td had some truncated entries. If I understand correctly, the person who wrote that interpreted the ResourceCycle as a range. I made the decision to use the upper/lower bound for consistency with the 'Latency' value. I'm sure there is a better choice.
 - The change to X86ScheduleBtVer2.td is an NFC, it just makes values more explicit.

Also see PR37310.

Reviewers: RKSimon, craig.topper, javed.absar

Subscribers: kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D46356

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334586 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoGettingStarted.rst: Fix 'If you you' typo (PR37787)
Hans Wennborg [Wed, 13 Jun 2018 09:11:10 +0000 (09:11 +0000)]
GettingStarted.rst: Fix 'If you you' typo (PR37787)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334584 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PowerPC] fix trivial typos in comment, NFC
Hiroshi Inoue [Wed, 13 Jun 2018 08:54:13 +0000 (08:54 +0000)]
[PowerPC] fix trivial typos in comment, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334583 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix -DLLVM_ENABLE_THREADS=OFF build after r334537
Hans Wennborg [Wed, 13 Jun 2018 08:43:03 +0000 (08:43 +0000)]
Fix -DLLVM_ENABLE_THREADS=OFF build after r334537

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334582 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix "Optional" is ambiguous error on some bots
Pavel Labath [Wed, 13 Jun 2018 08:29:19 +0000 (08:29 +0000)]
Fix "Optional" is ambiguous error on some bots

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334580 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PowerPC] avoid verification failure due to PowerPC VSX Swap Removal pass
Hiroshi Inoue [Wed, 13 Jun 2018 08:25:14 +0000 (08:25 +0000)]
[PowerPC] avoid verification failure due to PowerPC VSX Swap Removal pass

This patch fixes a failure in lnt tests with -verify-machineinstrs option.
When VSX Swap Removal pass swaps two register operands, it did not maintain kill flags associated with operands. This patch swaps flags as well as register number to avoid inconsistent kill flags information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334579 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DWARF/AccelTable] Remove getDIESectionOffset for DWARF v5 entries
Pavel Labath [Wed, 13 Jun 2018 08:14:27 +0000 (08:14 +0000)]
[DWARF/AccelTable] Remove getDIESectionOffset for DWARF v5 entries

Summary:
This method was not correct for entries in DWO files as it assumed it
could just add up the CU and DIE offsets to get the absolute DIE offset.
This is not correct for the DWO files, as here the CU offset will
reference the skeleton unit, whereas the DIE offset will be the offset
in the full unit in the DWO file.

Unfortunately, this means that we are not able to determine the absolute
DIE offset using the information in the .debug_names section alone,
which means we have to offload some of this work to the users of this
class.

To demonstrate how this can be done, I've added/fixed the ability to
lookup entries using accelerator tables in DWO files in llvm-dwarfdump.
To make this happen, I've needed to make two extra changes in other
classes:
- made the DWARFContext method to lookup a CU based on the section
  offset public. I've needed this functionality to lookup a CU, and this
  seems like a useful thing in general.
- made DWARFUnit::getDWOId call extractDIEsIfNeeded. Before this, the
  DWOId was filled in only if the root DIE happened to be parsed
  before we called the accessor. Since the lazy parsing is supposed to
  happen under the hood, calling extractDIEsIfNeeded seems appropriate.

Reviewers: JDevlieghere, aprantl, dblaikie

Subscribers: mgrang, llvm-commits

Differential Revision: https://reviews.llvm.org/D48009

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334578 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove masking from avx512vbmi2 concat and shift by immediate intrinsics. Use...
Craig Topper [Wed, 13 Jun 2018 07:19:21 +0000 (07:19 +0000)]
[X86] Remove masking from avx512vbmi2 concat and shift by immediate intrinsics. Use select in IR instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334576 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSet the code model when specified.
Bill Wendling [Wed, 13 Jun 2018 05:53:59 +0000 (05:53 +0000)]
Set the code model when specified.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334571 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoutils/release: Add merge-git.sh
Tom Stellard [Wed, 13 Jun 2018 05:14:10 +0000 (05:14 +0000)]
utils/release: Add merge-git.sh

Summary:
This script allows you to use git to backport a commit to a stable
branch while generating the exact same commit message (ignoring
whitespace) that you would get from using the merge.sh script with svn.

Reviewers: hansw

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D47760

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334568 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SimplifyIndVars] Ignore dead users
Max Kazantsev [Wed, 13 Jun 2018 02:25:32 +0000 (02:25 +0000)]
[SimplifyIndVars] Ignore dead users

IndVarSimplify sometimes makes transforms basing on users that are trivially dead. In particular,
if DCE wasn't run before it, there may be a dead `sext/zext` in loop that will trigger widening
transforms, however it makes no sense to do it.

This patch teaches IndVarsSimplify ignore the mist trivial cases of that.

Differential Revision: https://reviews.llvm.org/D47974
Reviewed By: sanjoy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334567 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "Fix how LLVMOPTIONALCOMPONENTS is passed to llvm-build"
Ahmed Bougacha [Wed, 13 Jun 2018 02:16:01 +0000 (02:16 +0000)]
Revert "Fix how LLVMOPTIONALCOMPONENTS is passed to llvm-build"

This reverts commit r334543.

My understanding is, that commit is intended to make the llvm-build
invocation have a correct "--enable-optional-components" value, but:
- it already has a value: it's quoted in the command line a few lines
  below, and, if I hack llvm-build to print sys.argv, it does look correct:
    -- llvm-build output: ['.../utils/llvm-build/llvm-build',
      '--native-target', 'X86', '--enable-targets', 'X86;ARM;AArch64',
      '--enable-optional-components', '',
      '--write-library-table',
      '.../build/tools/llvm-config/LibraryDependencies.inc',
      '--write-cmake-fragment', '.../build/LLVMBuild.cmake']
- the " " string seems to evaluate to TRUE in CMake (*sigh*), so this
  basically force-enables LLVM_USE_INTEL_JITEVENTS, regardless of the
  value of the option.
  On Darwin, JITEvents is not supported, so this bypasses that OS check
  but is guaranteed to fail later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334566 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Mark all instructions that have masked store semantics with NotMemoryFoldable...
Craig Topper [Wed, 13 Jun 2018 00:04:08 +0000 (00:04 +0000)]
[X86] Mark all instructions that have masked store semantics with NotMemoryFoldable. Remove dependency on SchedRW from memory table autogenerator.

Previously we were whitelisting in instructions based on their SchedRW value. With the masked store instructions explicitly removed via NotMemoryFoldable, we don't seem to need this check anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334563 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove VPCOMPRESSB/W from the autogenerated load folding table.
Craig Topper [Wed, 13 Jun 2018 00:04:04 +0000 (00:04 +0000)]
[X86] Remove VPCOMPRESSB/W from the autogenerated load folding table.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334562 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AMDGPU] DAG combine to produce V_PERM_B32
Stanislav Mekhanoshin [Tue, 12 Jun 2018 23:50:37 +0000 (23:50 +0000)]
[AMDGPU] DAG combine to produce V_PERM_B32

Differential Revision: https://reviews.llvm.org/D48099

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334559 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] add tests for fadd with more than one use; NFC
Sanjay Patel [Tue, 12 Jun 2018 22:50:37 +0000 (22:50 +0000)]
[AArch64] add tests for fadd with more than one use; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334556 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdded missing include to AMDHSAKernelDescriptor.h
Raphael Isemann [Tue, 12 Jun 2018 22:40:20 +0000 (22:40 +0000)]
Added missing include to AMDHSAKernelDescriptor.h

We use size_t in this header, so we also need to include
cstddef to make it compile. Fixes the module builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334555 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DAGCombiner] Recognize more patterns for ABS
Krzysztof Parzyszek [Tue, 12 Jun 2018 21:51:49 +0000 (21:51 +0000)]
[DAGCombiner] Recognize more patterns for ABS

Differential Revision: https://reviews.llvm.org/D47831

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334553 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] add avx512 tests for potentially miscompiling cvttp2si/cvttp2ui (PR37751).
Craig Topper [Tue, 12 Jun 2018 21:42:42 +0000 (21:42 +0000)]
[X86] add avx512 tests for potentially miscompiling cvttp2si/cvttp2ui (PR37751).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334551 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRemove malloc.h include from Intel JIT events code
Reid Kleckner [Tue, 12 Jun 2018 21:15:27 +0000 (21:15 +0000)]
Remove malloc.h include from Intel JIT events code

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334547 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd null check to Intel JIT event listener
Reid Kleckner [Tue, 12 Jun 2018 20:54:11 +0000 (20:54 +0000)]
Add null check to Intel JIT event listener

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334544 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix how LLVMOPTIONALCOMPONENTS is passed to llvm-build
Reid Kleckner [Tue, 12 Jun 2018 20:53:46 +0000 (20:53 +0000)]
Fix how LLVMOPTIONALCOMPONENTS is passed to llvm-build

Patch by Force.Charlie-I

If LLVM_USE_INTEL_JITEVENTS and LLVM_USE_OPROFILE  not set,
"${LLVMOPTIONALCOMPONENTS}" is empty, but
**--enable-optional-components** need arg, Cause
**--write-library-table** to be skipped parsed.

Differential Revision: https://reviews.llvm.org/D47982

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334543 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ORC] Add a fallback definition generator for VSOs.
Lang Hames [Tue, 12 Jun 2018 20:43:18 +0000 (20:43 +0000)]
[ORC] Add a fallback definition generator for VSOs.

If a VSO has a fallback definition generator attached it will be called during
lookup (and lookupFlags) for any unresolved symbols. The definition generator
can add new definitions to the VSO for any unresolved symbol. This allows VSOs
to generate new definitions on demand.

The immediate use case for this code is supporting VSOs that can import
definitions found via dlsym on demand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334538 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ORC] Refactor blocking lookup logic into the blockingLookup function, and
Lang Hames [Tue, 12 Jun 2018 20:43:17 +0000 (20:43 +0000)]
[ORC] Refactor blocking lookup logic into the blockingLookup function, and
implement existing blocking lookups (the lookup function) and
JITSymbolResolverAdapter on top of that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334537 91177308-0d34-0410-b5e6-96231b3b80d8