oota-llvm.git
8 years ago[InstCombine] allow any pair of bitcasts to be combined
Sanjay Patel [Sat, 12 Dec 2015 00:33:36 +0000 (00:33 +0000)]
[InstCombine] allow any pair of bitcasts to be combined

This change is discussed in D15392 and should allow us to effectively
revert:
http://llvm.org/viewvc/llvm-project?view=revision&revision=255261
if we canonicalize bitcasts ahead of extracts.

It should be safe to convert any pair of bitcasts into a single bitcast,
however, it was mentioned here:
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20110829/127089.html
that we're not allowed to bitcast from an x86_mmx to some other types, but I'm
not seeing any failures from that, and we have regression tests in CodeGen/X86
that appear to cover all of those cases.

Some day we'll get to remove that MMX wart from LLVM IR completely?

Differential Revision: http://reviews.llvm.org/D15468

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255399 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PowerPC] Add Branch Hints for Highly-Biased Branches
Hal Finkel [Sat, 12 Dec 2015 00:32:00 +0000 (00:32 +0000)]
[PowerPC] Add Branch Hints for Highly-Biased Branches

This branch adds hints for highly biased branches on the PPC architecture. Even
in absence of profiling information, LLVM will mark code reaching unreachable
terminators and other exceptional control flow constructs as highly unlikely to
be reached.

Patch by Tom Jablin!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255398 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Update test expectations
Derek Schuff [Sat, 12 Dec 2015 00:18:40 +0000 (00:18 +0000)]
[WebAssembly] Update test expectations

Many tests are now passing due to eliminateFrameIndex implementation and
the list needs to be re-triaged because it unblocks other failures, and
some previous failures are different. However I'm about to churn it more
by implementing more lowering, so will wait on that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255396 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert rL255391: [X86ISelLowering] Add additional support for multiplication-to-shift...
Chen Li [Sat, 12 Dec 2015 00:08:37 +0000 (00:08 +0000)]
Revert rL255391: [X86ISelLowering] Add additional support for multiplication-to-shift conversion.
because it broke buildbot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255395 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agouse FileCheck for better checking
Sanjay Patel [Sat, 12 Dec 2015 00:01:10 +0000 (00:01 +0000)]
use FileCheck for better checking

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255394 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Implement prolog/epilog insertion and FrameIndex elimination
Derek Schuff [Fri, 11 Dec 2015 23:49:46 +0000 (23:49 +0000)]
[WebAssembly]  Implement prolog/epilog insertion and FrameIndex elimination

Summary:
Use the SP32 physical register as the base for FrameIndex
lowering. Update it and the __stack_pointer global var in the prolog and
epilog. Extend the mapping of virtual registers to wasm locals to
include the physical registers.

Rather than modify the target-independent PrologEpilogInserter (which
asserts that there are no virtual registers left) include a
slightly-modified copy for Wasm that does not have this assertion and
only clears the virtual registers if scavenging was needed (which of
course it isn't for wasm).

Differential Revision: http://reviews.llvm.org/D15344

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255392 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86ISelLowering] Add additional support for multiplication-to-shift conversion.
Chen Li [Fri, 11 Dec 2015 23:39:32 +0000 (23:39 +0000)]
[X86ISelLowering] Add additional support for multiplication-to-shift conversion.

Summary: This patch adds support of conversion (mul x, 2^N + 1) => (add (shl x, N), x) and (mul x, 2^N - 1) => (sub (shl x, N), x) if the multiplication can not be converted to LEA + SHL or LEA + LEA. LLVM has already supported this on ARM, and it should also be useful on X86. Note the patch currently only applies to cases where the constant operand is positive, and I am planing to add another patch to support negative cases after this.

Reviewers: craig.topper, RKSimon

Subscribers: aemerson, llvm-commits

Differential Revision: http://reviews.llvm.org/D14603

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255391 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSamplePGO - Reduce memory utilization by 10x.
Diego Novillo [Fri, 11 Dec 2015 23:21:38 +0000 (23:21 +0000)]
SamplePGO - Reduce memory utilization by 10x.

DenseMap is the wrong data structure to use for sample records and call
sites.  The keys are too large, causing massive core memory growth when
reading profiles.

Before this patch, a 21Mb input profile was causing the compiler to grow
to 3Gb in memory.  By switching to std::map, the compiler now grows to
300Mb in memory.

There still are some opportunities for memory footprint reduction. I'll
be looking at those next.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255389 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSelectionDAG: Match min/max if the scalar operation is legal
Matt Arsenault [Fri, 11 Dec 2015 23:16:47 +0000 (23:16 +0000)]
SelectionDAG: Match min/max if the scalar operation is legal

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255388 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert r248483, r242546, r242545, and r242409 - absdiff intrinsics
Hal Finkel [Fri, 11 Dec 2015 23:11:52 +0000 (23:11 +0000)]
Revert r248483, r242546, r242545, and r242409 - absdiff intrinsics

After much discussion, ending here:

  http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20151123/315620.html

it has been decided that, instead of having the vectorizer directly generate
special absdiff and horizontal-add intrinsics, we'll recognize the relevant
reduction patterns during CodeGen. Accordingly, these intrinsics are not needed
(the operations they represent can be pattern matched, as is already done in
some backends). Thus, we're backing these out in favor of the current
development work.

r248483 - Codegen: Fix llvm.*absdiff semantic.
r242546 - [ARM] Use [SU]ABSDIFF nodes instead of intrinsics for VABD/VABA
r242545 - [AArch64] Use [SU]ABSDIFF nodes instead of intrinsics for ABD/ABA
r242409 - [Codegen] Add intrinsics 'absdiff' and corresponding SDNodes for absolute difference operation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255387 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAvoid buffered reads of /dev/urandom
Rafael Espindola [Fri, 11 Dec 2015 22:52:32 +0000 (22:52 +0000)]
Avoid buffered reads of /dev/urandom

I am seeing disappointing clang performance on a large PowerPC64
Linux box. GetRandomNumberSeed() does a buffered read from
/dev/urandom to seed its PRNG. As a result we read an entire page
even though we only need 4 bytes.

With every clang task reading a page worth of /dev/urandom we
end up spending a large amount of time stuck on kernel spinlock.

Patch by Anton Blanchard!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255386 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[llvm-objdump/MachODump] Reduce code duplication.
Davide Italiano [Fri, 11 Dec 2015 22:27:59 +0000 (22:27 +0000)]
[llvm-objdump/MachODump] Reduce code duplication.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255380 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd tests for bitcast-bitcast sequences for all scalar/vector permutations
Sanjay Patel [Fri, 11 Dec 2015 20:26:30 +0000 (20:26 +0000)]
Add tests for bitcast-bitcast sequences for all scalar/vector permutations

As noted in http://reviews.llvm.org/D15392 , we should be able to improve this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255370 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PGO] Revert r255365: solution incomplete, not handling lambda yet
Xinliang David Li [Fri, 11 Dec 2015 20:23:22 +0000 (20:23 +0000)]
[PGO] Revert r255365: solution incomplete, not handling lambda yet

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255369 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PGO] Stop using invalid char in instr variable names.
Xinliang David Li [Fri, 11 Dec 2015 19:53:19 +0000 (19:53 +0000)]
[PGO] Stop using invalid char in instr variable names.

Before the patch, -fprofile-instr-generate compile will fail
if no integrated-as is specified when the file contains
any static functions (the -S output is also invalid).

This patch fixed the issue. With the change, the index format
version will be bumped up by 1. Backward compatibility is
preserved with this change.

Differential Revision: http://reviews.llvm.org/D15243

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255365 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoCodeGen: Redo analyzePhysRegs() and computeRegisterLiveness()
Matthias Braun [Fri, 11 Dec 2015 19:42:09 +0000 (19:42 +0000)]
CodeGen: Redo analyzePhysRegs() and computeRegisterLiveness()

computeRegisterLiveness() was broken in that it reported dead for a
register even if a subregister was alive. I assume this was because the
results of analayzePhysRegs() are hard to understand with respect to
subregisters.

This commit: Changes the results of analyzePhysRegs (=struct
PhysRegInfo) to be clearly understandable, also renames the fields to
avoid silent breakage of third-party code (and improve the grammar).

Fix all (two) users of computeRegisterLiveness() in llvm: By reenabling
it and removing workarounds for the bug.

This fixes http://llvm.org/PR24535 and http://llvm.org/PR25033

Differential Revision: http://reviews.llvm.org/D15320

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255362 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoStart replacing vector_extract/vector_insert with extractelt/insertelt
Matt Arsenault [Fri, 11 Dec 2015 19:20:16 +0000 (19:20 +0000)]
Start replacing vector_extract/vector_insert with extractelt/insertelt

These are redundant pairs of nodes defined for
INSERT_VECTOR_ELEMENT/EXTRACT_VECTOR_ELEMENT.
insertelement/extractelement are slightly closer to the corresponding
C++ node name, and has stricter type checking so prefer it.

Update targets to only use these nodes where it is trivial to do so.
AArch64, ARM, and Mips all have various type errors on simple replacement,
so they will need work to fix.

Example from AArch64:

def : Pat<(sext_inreg (vector_extract (v16i8 V128:$Rn), VectorIndexB:$idx), i8),
          (i32 (SMOVvi8to32 V128:$Rn, VectorIndexB:$idx))>;

Which is trying to do sext_inreg i8, i8.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255359 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Fix ADJCALLSTACKDOWN/UP use/defs
Derek Schuff [Fri, 11 Dec 2015 18:55:34 +0000 (18:55 +0000)]
[WebAssembly] Fix ADJCALLSTACKDOWN/UP use/defs

Summary:
ADJCALLSTACK{DOWN,UP} (aka CALLSEQ_{START,END}) MIs are supposed to use
and def the stack pointer. Since they do not, all the nodes are being
eliminated by DeadMachineInstructionElim, so they aren't in the IR when
PrologEpilogInserter/eliminateCallFramePseudo needs them.

This change fixes that, but since RegStackify will not stackify across
them (and it runs early, before PEI), change LowerCall to only emit them
when the call frame size is > 0. That makes the current code work the
same way and makes code handled by D15344 also work the same way. We can
expand the condition beyond NumBytes > 0 in the future if needed.

Reviewers: sunfish, jfb

Subscribers: jfb, dschuff, llvm-commits

Differential Revision: http://reviews.llvm.org/D15459

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255356 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert r255247, r255265, and r255286 due to serious compile-time regressions.
Chad Rosier [Fri, 11 Dec 2015 18:39:41 +0000 (18:39 +0000)]
Revert r255247, r255265, and r255286 due to serious compile-time regressions.

Revert "[DSE] Disable non-local DSE to see if the bots go green."
Revert "[DeadStoreElimination] Use range-based loops. NFC."
Revert "[DeadStoreElimination] Add support for non-local DSE."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255354 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoCXX_FAST_TLS calling convention: target independent portion.
Manman Ren [Fri, 11 Dec 2015 18:24:30 +0000 (18:24 +0000)]
CXX_FAST_TLS calling convention: target independent portion.

The access function has a short entry and a short exit, the initialization
block is only run the first time. To improve the performance, we want to
have a short frame at the entry and exit.

We explicitly handle most of the CSRs via copies. Only the CSRs that are not
handled via copies will be in CSR_SaveList.

Frame lowering and prologue/epilogue insertion will generate a short frame
in the entry and exit according to CSR_SaveList. The majority of the CSRs will
be handled by register allcoator. Register allocator will try to spill and
reload them in the initialization block.

We add CSRsViaCopy, it will be explicitly handled during lowering.

1> we first set FunctionLoweringInfo->SplitCSR if conditions are met (the target
   supports it for the given calling convention and the function has only return
   exits). We also call TLI->initializeSplitCSR to perform initialization.
2> we call TLI->insertCopiesSplitCSR to insert copies from CSRsViaCopy to
   virtual registers at beginning of the entry block and copies from virtual
   registers to CSRsViaCopy at beginning of the exit blocks.
3> we also need to make sure the explicit copies will not be eliminated.

rdar://problem/23557469

Differential Revision: http://reviews.llvm.org/D15340

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255353 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agofix typos; NFC
Sanjay Patel [Fri, 11 Dec 2015 18:12:01 +0000 (18:12 +0000)]
fix typos; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255352 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[dsymutil] Ignore absolute symbols in the debug map
Frederic Riss [Fri, 11 Dec 2015 17:50:37 +0000 (17:50 +0000)]
[dsymutil] Ignore absolute symbols in the debug map

Quoting from the comment added to the code:

    // Objective-C on i386 uses artificial absolute symbols to
    // perform some link time checks. Those symbols have a fixed 0
    // address that might conflict with real symbols in the object
    // file. As I cannot see a way for absolute symbols to find
    // their way into the debug information, let's just ignore those.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255350 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAlignmentFromAssumptions and SLPVectorizer preserves AA and GlobalsAA
Hal Finkel [Fri, 11 Dec 2015 17:46:01 +0000 (17:46 +0000)]
AlignmentFromAssumptions and SLPVectorizer preserves AA and GlobalsAA

GlobalsAA's assumptions that passes do not escape globals not previously
escaped is not violated by AlignmentFromAssumptions and SLPVectorizer. Marking
them as such allows GlobalsAA to be preserved until GVN in the LTO pipeline.

http://lists.llvm.org/pipermail/llvm-dev/2015-December/092972.html

Patch by Vaivaswatha Nagaraj!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255348 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[TableGen] Correct Namespace lookup with AltNames in AsmWriterEmitter
Hal Finkel [Fri, 11 Dec 2015 17:31:27 +0000 (17:31 +0000)]
[TableGen] Correct Namespace lookup with AltNames in AsmWriterEmitter

AsmWriterEmitter will generate a getRegisterName function with an alternate
register name index as its second argument if the target makes use of them. The
enum of these values is generated in RegisterInfoEmitter. The getRegisterName
generator would assume the namespace could always be found by reading index 1
of the list of AltNameIndices, but this will fail if this list is sorted such
that the NoRegAltName is at index 1. Because this list is sorted by record name
(in CodeGenTarget::ReadRegAltNameIndices), you only run in to problems if your
MyTargetRegisterInfo.td defines a single RegAltNameIndex that sorts lexically
before NoRegAltName.

For example, if a target has something like

  def AnAltNameIndex : RegAltNameIndex

and defines RegAltNameIndices for some registers then, prior to this change,
AsmWriterEmitter would generate references to

  ::AnAltNameIndex and ::NoRegAltName

Patch by Alex Bradbury!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255344 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoPruneEH pass incorrectly reports that a change was made
Artur Pilipenko [Fri, 11 Dec 2015 16:30:26 +0000 (16:30 +0000)]
PruneEH pass incorrectly reports that a change was made

Reviewed By: reames

Differential Revision: http://reviews.llvm.org/D14097

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255343 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Mem2Reg] Respect optnone
James Molloy [Fri, 11 Dec 2015 13:36:59 +0000 (13:36 +0000)]
[Mem2Reg] Respect optnone

Mem2Reg shouldn't be optimizing a function that is marked
optnone. There is a test checking this that fails when mem2reg is
explicitly added to the standard pass pipeline.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255336 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] Make MatchBSwap also match bit reversals
James Molloy [Fri, 11 Dec 2015 10:04:51 +0000 (10:04 +0000)]
[InstCombine] Make MatchBSwap also match bit reversals

MatchBSwap has most of the functionality to match bit reversals already. If we switch it from looking at bytes to individual bits and remove a few early exits, we can extend the main recursive function to match any sequence of ORs, ANDs and shifts that assemble a value from different parts of another, base value. Once we have this bit->bit mapping, we can very simply detect if it is appropriate for a bswap or bitreverse.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255334 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert previous test commit.
Maxim Ostapenko [Fri, 11 Dec 2015 07:40:25 +0000 (07:40 +0000)]
Revert previous test commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255331 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoThis is a test commit to check my commit access works.
Maxim Ostapenko [Fri, 11 Dec 2015 07:31:29 +0000 (07:31 +0000)]
This is a test commit to check my commit access works.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255330 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PGO] Read VP raw data without depending on the Value field
Xinliang David Li [Fri, 11 Dec 2015 06:53:53 +0000 (06:53 +0000)]
[PGO] Read VP raw data without depending on the Value field

Before this patch, each function's on-disk VP data is 'pointed'
to by the Value field of per-function ProfileData structue, and
read relies on this field (relocated with ValueDataDelta field)
to read the value data. However this means the Value field needs
to be updated during runtime before dumping, which creates undesirable
data races.

With this patch, the reading of VP data no longer depends on Value
field. There is no format change. ValueDataDelta header field becomes
obsolute but will be kept for compatibility reason (will be removed
next time the raw format change is needed).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255329 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix build after r255319.
Hans Wennborg [Fri, 11 Dec 2015 00:58:32 +0000 (00:58 +0000)]
Fix build after r255319.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255322 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix a spurious if.
Eric Christopher [Fri, 11 Dec 2015 00:51:59 +0000 (00:51 +0000)]
Fix a spurious if.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255321 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[LazyValueInfo] Stop inserting overdefined values into ValueCache to
Akira Hatanaka [Fri, 11 Dec 2015 00:49:47 +0000 (00:49 +0000)]
[LazyValueInfo] Stop inserting overdefined values into ValueCache to
reduce memory usage.

Previously, LazyValueInfoCache inserted overdefined lattice values into
both ValueCache and OverDefinedCache. This wasn't necessary and was
causing LazyValueInfo to use an excessive amount of memory in some cases.

This patch changes LazyValueInfoCache to insert overdefined values only
into OverDefinedCache. The memory usage decreases by 70 to 75% when one
of the files in llvm is compiled.

rdar://problem/11388615

Differential revision: http://reviews.llvm.org/D15391

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255320 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PPC]: Peephole optimize small accesss to aligned globals.
Kyle Butt [Fri, 11 Dec 2015 00:47:36 +0000 (00:47 +0000)]
[PPC]: Peephole optimize small accesss to aligned globals.

Access to aligned globals gives us a chance to peephole optimize nonzero
offsets. If a struct is 4 byte aligned, then accesses to bytes 0-3 won't
overflow the available displacement. For example:
        addis 3, 2, b4v@toc@ha
        addi 4, 3, b4v@toc@l
        lbz 5, b4v@toc@l(3) ; This is the result of the current peephole
        lbz 6, 1(4)         ; optimizer
        lbz 7, 2(4)
        lbz 8, 3(4)
If b4v is 4-byte aligned, we can skip using register 4 because we know
that b4v@toc@l+{1,2,3} won't overflow 32K, and instead generate:
        addis 3, 2, b4v@toc@ha
        lbz 4, b4v@toc@l(3)
        lbz 5, b4v@toc@l+1(3)
        lbz 6, b4v@toc@l+2(3)
        lbz 7, b4v@toc@l+3(3)
Saving a register and an addition.
Larger alignments allow larger structures/arrays to be optimized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255319 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoCheck in the script for building Win snapshots
Hans Wennborg [Fri, 11 Dec 2015 00:43:42 +0000 (00:43 +0000)]
Check in the script for building Win snapshots

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255318 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ProfileData] clang-format TextInstrProfReader::hasFormat. NFC.
Vedant Kumar [Fri, 11 Dec 2015 00:40:05 +0000 (00:40 +0000)]
[ProfileData] clang-format TextInstrProfReader::hasFormat. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255317 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][SSE] Update the cost table for integer-integer conversions on SSE2/SSE4.1.
Cong Hou [Fri, 11 Dec 2015 00:31:39 +0000 (00:31 +0000)]
[X86][SSE] Update the cost table for integer-integer conversions on SSE2/SSE4.1.

Previously in the conversion cost table there are no entries for integer-integer
conversions on SSE2. This will result in imprecise costs for certain vectorized
operations. This patch adds those entries for SSE2 and SSE4.1. The cost numbers
are counted from the result of running llc on the new test case in this patch.

Differential revision: http://reviews.llvm.org/D15132

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255315 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFormat fix (NFC)
Xinliang David Li [Thu, 10 Dec 2015 23:48:05 +0000 (23:48 +0000)]
Format fix (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255313 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agos/need/needs
Eric Christopher [Thu, 10 Dec 2015 22:29:26 +0000 (22:29 +0000)]
s/need/needs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255306 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix (bitcast (fabs x)), (bitcast (fneg x)) and (bitcast (fcopysign cst,
Eric Christopher [Thu, 10 Dec 2015 22:09:06 +0000 (22:09 +0000)]
Fix (bitcast (fabs x)), (bitcast (fneg x)) and (bitcast (fcopysign cst,
x)) combines for ppc_fp128, since signbit computation is more
complicated.

Discussion thread:
http://lists.llvm.org/pipermail/llvm-dev/2015-November/092863.html

Patch by Tim Shen!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255305 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAttempt to fix the ReST compilation to html of the C API docs.
Eric Christopher [Thu, 10 Dec 2015 22:04:11 +0000 (22:04 +0000)]
Attempt to fix the ReST compilation to html of the C API docs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255304 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMore non-ascii quote characters.
Eric Christopher [Thu, 10 Dec 2015 21:47:38 +0000 (21:47 +0000)]
More non-ascii quote characters.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255303 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoClarify some of the wording on adding a new subcomponent to the
Eric Christopher [Thu, 10 Dec 2015 21:46:24 +0000 (21:46 +0000)]
Clarify some of the wording on adding a new subcomponent to the
C API.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255302 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix non-ascii quotes.
Eric Christopher [Thu, 10 Dec 2015 21:38:56 +0000 (21:38 +0000)]
Fix non-ascii quotes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255301 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd C API guidelines to the developer policy to match discussions
Eric Christopher [Thu, 10 Dec 2015 21:33:53 +0000 (21:33 +0000)]
Add C API guidelines to the developer policy to match discussions
on the llvm mailing lists.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255300 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoPPC: Teach FMA mutate to respect register classes.
Kyle Butt [Thu, 10 Dec 2015 21:28:40 +0000 (21:28 +0000)]
PPC: Teach FMA mutate to respect register classes.

This was causing bad code gen and assembly that won't assemble, as
mixed altivec and vsx code would end up with a vsx high register
assigned to an altivec instruction, which won't work. Constraining the
classes allows the optimization to proceed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255299 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[CMake] Add LLVM_BUILD_INSTRUMENTED option to enable building with -fprofile-instr...
Chris Bieneman [Thu, 10 Dec 2015 21:19:07 +0000 (21:19 +0000)]
[CMake] Add LLVM_BUILD_INSTRUMENTED option to enable building with -fprofile-instr-generate

This is the first step in supporting PGO data generation via CMake. I've marked the option as advanced and experimental until it is fleshed out further.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255298 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[LibFuzzer] Introducing FUZZER_FLAG_UNSIGNED and using it for seeding.
Mike Aizatsky [Thu, 10 Dec 2015 20:41:53 +0000 (20:41 +0000)]
[LibFuzzer] Introducing FUZZER_FLAG_UNSIGNED and using it for seeding.

Differential Revision: http://reviews.llvm.org/D15339

done

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255296 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoEarlyCSE: add tests
JF Bastien [Thu, 10 Dec 2015 20:24:34 +0000 (20:24 +0000)]
EarlyCSE: add tests

Summary: As a follow-up to rL255054 I wasn't able to convince myself that the code did what I thought, so I wrote more tests.

Reviewers: reames

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D15371

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255295 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd a forward declaration (NFC)
Xinliang David Li [Thu, 10 Dec 2015 20:13:41 +0000 (20:13 +0000)]
Add a forward declaration (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255292 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDelete a duplicate branch in IfConversion.cpp. NFC.
Cong Hou [Thu, 10 Dec 2015 19:57:22 +0000 (19:57 +0000)]
Delete a duplicate branch in IfConversion.cpp. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255291 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[DAGCombiner] Fix PR25763 - vector comparison constant folding + sign-extension
Simon Pilgrim [Thu, 10 Dec 2015 19:47:06 +0000 (19:47 +0000)]
[DAGCombiner] Fix PR25763 - vector comparison constant folding + sign-extension

PR25763 demonstrated an issue with D14683 - vector comparison constant folding only works for i1 results, so we need to split off the sign-extension of the result to the required type. Luckily this can be done with the existing type legalization code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255289 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[DSE] Disable non-local DSE to see if the bots go green.
Chad Rosier [Thu, 10 Dec 2015 19:23:02 +0000 (19:23 +0000)]
[DSE] Disable non-local DSE to see if the bots go green.

I see a few bots timing out, so I'm speculatively disabling r255247.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255286 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix another case where the linkage was not set.
Rafael Espindola [Thu, 10 Dec 2015 18:44:26 +0000 (18:44 +0000)]
Fix another case where the linkage was not set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255272 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PGO] Use %t as the temporary profdata filename in the test cases.
Rong Xu [Thu, 10 Dec 2015 18:24:44 +0000 (18:24 +0000)]
[PGO] Use %t as the temporary profdata filename in the test cases.

Using %t rather %T/<specific_name> as the temporary profdata filename.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255271 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoVerifier: Avoid quadratic checking of aggregates for bad bitcasts
Duncan P. N. Exon Smith [Thu, 10 Dec 2015 17:56:06 +0000 (17:56 +0000)]
Verifier: Avoid quadratic checking of aggregates for bad bitcasts

Avoid O(N^2) behaviour when checking for bad bitcasts in `ConstantExpr`s
buried inside of aggregate initializers to `GlobalVariable`s.  I've:
- centralized the "visited" set for recursing through `ConstantExpr`s so
  that expressions are only visited once per Verifier run,
- removed the duplicate logic for the stack visit, and
- avoided recursing into other `GlobalValue`s.

This recovers roughly a 100x time difference in clang compiles of a
particular input file (filled with large cross-referencing tables) that
depends on whether `-disable-llvm-verifier` is on.  This slowdown was
caused by r187506, which introduced these checks.

Now, avoiding `-disable-llvm-verifier` only causes a 2x slowdown for
this case.

(Interestingly, dumping the textual IR for this file starts at least
50GB of global variable initializers (I don't know the total, since I
killed the dump)...)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255269 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[DeadStoreElimination] Use range-based loops. NFC.
Chad Rosier [Thu, 10 Dec 2015 17:27:18 +0000 (17:27 +0000)]
[DeadStoreElimination] Use range-based loops. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255265 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ProfileData] Add unit test infrastructure for sample profile reader/writer
Nathan Slingerland [Thu, 10 Dec 2015 17:21:42 +0000 (17:21 +0000)]
[ProfileData] Add unit test infrastructure for sample profile reader/writer

Summary:
Adds support for in-memory round-trip of sample profile data along with basic
round trip unit tests. This will also make it easier to include unit tests for
future changes to sample profiling.

Reviewers: davidxl, dnovillo, silvas

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D15211

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255264 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix fptosi, fptoui from f16 vectors to i8, i16 vectors
Pirama Arumuga Nainar [Thu, 10 Dec 2015 17:16:49 +0000 (17:16 +0000)]
Fix fptosi, fptoui from f16 vectors to i8, i16 vectors

Summary:
Convert f16 vectors to corresponding f32 vectors before doing the
conversion to int.

Add tests for v4f16, v8f16.

Reviewers: ab, jmolloy

Subscribers: llvm-commits, srhines

Differential Revision: http://reviews.llvm.org/D14936

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255263 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstCombine] fold bitcasts around an extractelement (3rd try)
Sanjay Patel [Thu, 10 Dec 2015 17:09:28 +0000 (17:09 +0000)]
[InstCombine] fold bitcasts around an extractelement (3rd try)

This is a redo of r255137 (reverted at r255227) which was a redo of
r255124 (reverted at r255126) with a fixed check for a scalar source
type and an added test for the failure that caused the revert.

Original commit message:

Example:
  bitcast (extractelement (bitcast <2 x float> %X to <2 x i32>), 1) to float
    --->
  extractelement <2 x float> %X, i32 1

This is part of fixing PR25543:
https://llvm.org/bugs/show_bug.cgi?id=25543

The next step will be to generalize this fold:
trunc ( lshr ( bitcast X) ) -> extractelement (X)

Ie, I'm hoping to replace the existing transform of:
bitcast ( trunc ( lshr ( bitcast X)))
added by:
http://reviews.llvm.org/rL112232

with 2 less specific transforms to catch the case in the bug report.

Differential Revision: http://reviews.llvm.org/D14879

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255261 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ThinLTO] Debug message cleanup (NFC)
Teresa Johnson [Thu, 10 Dec 2015 16:39:07 +0000 (16:39 +0000)]
[ThinLTO] Debug message cleanup (NFC)

Added some missing spaces between the module identifier and the start of
the debug message. Also added a ":" after the module identifier to make
this look a little nicer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255259 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAvoid undefined behavior when vector is empty.
Rafael Espindola [Thu, 10 Dec 2015 16:35:06 +0000 (16:35 +0000)]
Avoid undefined behavior when vector is empty.

Found by ubsan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255258 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoremove duplicated comments and don't repeat function names in comments; NFC
Sanjay Patel [Thu, 10 Dec 2015 16:34:21 +0000 (16:34 +0000)]
remove duplicated comments and don't repeat function names in comments; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255257 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ThinLTO] Release files in gold plugin during combined index (take 2)
Teresa Johnson [Thu, 10 Dec 2015 16:11:23 +0000 (16:11 +0000)]
[ThinLTO] Release files in gold plugin during combined index (take 2)

Ensure we release the files even when they don't hold a function index
summary section, by restructuring the control flow a little bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255256 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Tighten up several CHECK tests.
Dan Gohman [Thu, 10 Dec 2015 14:52:34 +0000 (14:52 +0000)]
[WebAssembly] Tighten up several CHECK tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255255 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSlit lib/Linker in two.
Rafael Espindola [Thu, 10 Dec 2015 14:19:35 +0000 (14:19 +0000)]
Slit lib/Linker in two.

A linker normally has two stages: symbol resolution and "moving stuff".

In lib/Linker there is the complication of lazy linking some globals,
but it was still far more mixed than it needed to.

This splits the linker into a lower level IRMover and the linker proper.
The IRMover just takes a list of globals to move and a callback that
lets the user control what is lazy linked.

The main motivation is that now tools/gold (and soon lld) can use their
own symbol resolution to instruct IRMover what to do.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255254 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Make WebAssemblyStoreResults only return true when it has a change.
Dan Gohman [Thu, 10 Dec 2015 14:17:36 +0000 (14:17 +0000)]
[WebAssembly] Make WebAssemblyStoreResults only return true when it has a change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255253 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Fix WebAssemblyPeephole to set Changed to true when making changes.
Dan Gohman [Thu, 10 Dec 2015 14:16:34 +0000 (14:16 +0000)]
[WebAssembly] Fix WebAssemblyPeephole to set Changed to true when making changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255252 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Declare that WebAssemblyPeephole does not modify the CFG.
Dan Gohman [Thu, 10 Dec 2015 14:12:04 +0000 (14:12 +0000)]
[WebAssembly] Declare that WebAssemblyPeephole does not modify the CFG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255251 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Remove an unneeded getAnalysisUsage override.
Dan Gohman [Thu, 10 Dec 2015 14:10:04 +0000 (14:10 +0000)]
[WebAssembly] Remove an unneeded getAnalysisUsage override.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255250 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[DeadStoreElimination] Add support for non-local DSE.
Chad Rosier [Thu, 10 Dec 2015 13:51:43 +0000 (13:51 +0000)]
[DeadStoreElimination] Add support for non-local DSE.

We extend the search for redundant stores to predecessor blocks that
unconditionally lead to the block BB with the current store instruction.  That
also includes single-block loops that unconditionally lead to BB, and
if-then-else blocks where then- and else-blocks unconditionally lead to BB.

http://reviews.llvm.org/D13363
Patch by Ivan Baev <ibaev@codeaurora.org>!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255247 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoBitcasts between FP and INT values using direct moves
Nemanja Ivanovic [Thu, 10 Dec 2015 13:35:28 +0000 (13:35 +0000)]
Bitcasts between FP and INT values using direct moves

This patch corresponds to review:
http://reviews.llvm.org/D15286

LLVM IR frequently contains bitcast operations between floating point and
integer values of the same width. Doing this through memory operations is
quite expensive on PPC. This patch allows the use of direct register moves
between FPRs and GPRs for lowering bitcasts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255246 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMacro debug info support in LLVM IR
Amjad Aboud [Thu, 10 Dec 2015 12:56:35 +0000 (12:56 +0000)]
Macro debug info support in LLVM IR
Introduced DIMacro and DIMacroFile debug info metadata in the LLVM IR to support macros.

Differential Revision: http://reviews.llvm.org/D14687

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255245 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[LLE] Use the PredicatedScalarEvolution interface to query SCEVs for dependences
Silviu Baranga [Thu, 10 Dec 2015 11:07:18 +0000 (11:07 +0000)]
[LLE] Use the PredicatedScalarEvolution interface to query SCEVs for dependences

Summary:
LAA uses the PredicatedScalarEvolution interface, so it can produce
forward/backward dependences having SCEVs that are AddRecExprs only after being
transformed by PredicatedScalarEvolution.

Use PredicatedScalarEvolution to get the expected expressions.

Reviewers: anemet

Subscribers: llvm-commits, sanjoy

Differential Revision: http://reviews.llvm.org/D15382

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255241 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PostRA scheduling] Allow a target to do scheduling when it wants post RA.
Jonas Paulsson [Thu, 10 Dec 2015 09:10:07 +0000 (09:10 +0000)]
[PostRA scheduling] Allow a target to do scheduling when it wants post RA.

SystemZ needs to do its scheduling after branch relaxation, which can
only happen after block placement, and therefore the standard
PostRAScheduler point in the pass sequence is too early.

TargetMachine::targetSchedulesPostRAScheduling() is a new method that
signals on returning true that target will insert the final scheduling
pass on its own.

Reviewed by Hal Finkel

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255234 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert r255137.
Akira Hatanaka [Thu, 10 Dec 2015 08:00:52 +0000 (08:00 +0000)]
Revert r255137.

This commit broke apple's internal bot.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255227 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd arg_begin() and arg_end() to CallInst and InvokeInst; NFCI
Sanjoy Das [Thu, 10 Dec 2015 06:39:02 +0000 (06:39 +0000)]
Add arg_begin() and arg_end() to CallInst and InvokeInst; NFCI

 - This simplifies the CallSite class, arg_begin / arg_end are now
   simple wrapper getters.

 - In several places, we were creating CallSite instances solely to call
   arg_begin and arg_end.  With this change, that's no longer required.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255226 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] Fix a couple cases were bitwise and logical operations were being mixed. NFC
Craig Topper [Thu, 10 Dec 2015 06:09:41 +0000 (06:09 +0000)]
[X86] Fix a couple cases were bitwise and logical operations were being mixed. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255224 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[OPENMP] Make -fopenmp to turn on OpenMP support by default.
Alexey Bataev [Thu, 10 Dec 2015 05:45:58 +0000 (05:45 +0000)]
[OPENMP] Make -fopenmp to turn on OpenMP support by default.
Patch turns on OpenMP support in clang by default after fixing OpenMP buildbots.
Differential Revision: http://reviews.llvm.org/D13802

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255222 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Implement mixed-type ISD::FCOPYSIGN.
Dan Gohman [Thu, 10 Dec 2015 04:55:31 +0000 (04:55 +0000)]
[WebAssembly] Implement mixed-type ISD::FCOPYSIGN.

ISD::FCOPYSIGN permits its operands to have differing types, and DAGCombiner
uses this. Add some def : Pat rules to expand this out into an explicit
conversion and a normal copysign operation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255220 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Implement fma.
Dan Gohman [Thu, 10 Dec 2015 04:52:33 +0000 (04:52 +0000)]
[WebAssembly] Implement fma.

It is lowered to a libcall for now, but this is expected to change in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255219 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAMDGPU/SI: Fix warning introduced by r255204
Tom Stellard [Thu, 10 Dec 2015 03:10:46 +0000 (03:10 +0000)]
AMDGPU/SI: Fix warning introduced by r255204

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255205 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAMDGPU/SI: Emit constant arrays in the .text section
Tom Stellard [Thu, 10 Dec 2015 02:13:01 +0000 (02:13 +0000)]
AMDGPU/SI: Emit constant arrays in the .text section

Summary:
This allows us to remove the END_OF_TEXT_LABEL hack we had been using
and simplifies the fixups used to compute the address of constant
arrays.

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D15257

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255204 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAMDGPU/SI: Add support for sgpr and vgpr inline assembly constraints
Tom Stellard [Thu, 10 Dec 2015 02:12:53 +0000 (02:12 +0000)]
AMDGPU/SI: Add support for sgpr and vgpr inline assembly constraints

Summary: The 's' constraint represents sgprs and the 'v' constraint represents vgprs.

Reviewers: arsenm, echristo

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D15342

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255203 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Fix legalization of f32->f64 EXTLOAD.
Dan Gohman [Thu, 10 Dec 2015 02:07:53 +0000 (02:07 +0000)]
[WebAssembly] Fix legalization of f32->f64 EXTLOAD.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255202 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Update known test failures
Derek Schuff [Thu, 10 Dec 2015 01:09:40 +0000 (01:09 +0000)]
[WebAssembly] Update known test failures

We can now select sign_extend_inreg

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255197 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRegisterPressure: Factor out liveness dead-def detection logic; NFCI
Matthias Braun [Thu, 10 Dec 2015 01:04:15 +0000 (01:04 +0000)]
RegisterPressure: Factor out liveness dead-def detection logic; NFCI

Detecting additional dead-defs without a dead flag that are only visible
through liveness information should be part of the register operand
collection not intertwined with the register pressure update logic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255192 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Also legalize sign_extend_inreg of i32->i64.
Dan Gohman [Thu, 10 Dec 2015 01:00:19 +0000 (01:00 +0000)]
[WebAssembly] Also legalize sign_extend_inreg of i32->i64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255191 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Update test failure expectations
Derek Schuff [Thu, 10 Dec 2015 00:56:18 +0000 (00:56 +0000)]
[WebAssembly] Update test failure expectations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255190 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoPeepholeOptimizer: Ignore dead implicit defs
Dan Gohman [Thu, 10 Dec 2015 00:37:51 +0000 (00:37 +0000)]
PeepholeOptimizer: Ignore dead implicit defs

Target-specific instructions may have uninteresting physreg clobbers,
for target-specific reasons. The peephole pass doesn't need to concern
itself with such defs, as long as they're implicit and marked as dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255182 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Fix legalization of shift operators with illegal types.
Dan Gohman [Thu, 10 Dec 2015 00:26:26 +0000 (00:26 +0000)]
[WebAssembly] Fix legalization of shift operators with illegal types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255181 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Fix copy+pastos.
Dan Gohman [Thu, 10 Dec 2015 00:22:40 +0000 (00:22 +0000)]
[WebAssembly] Fix copy+pastos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255180 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WebAssembly] Implement anyext.
Dan Gohman [Thu, 10 Dec 2015 00:17:35 +0000 (00:17 +0000)]
[WebAssembly] Implement anyext.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255179 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] Enable shrink-wrapping by default, but keep it disabled for stack frames
Quentin Colombet [Wed, 9 Dec 2015 23:08:18 +0000 (23:08 +0000)]
[X86] Enable shrink-wrapping by default, but keep it disabled for stack frames
without a frame pointer when unwind may happen.
This is a workaround for a bug in the way we emit the CFI directives for
frameless unwind information. See PR25614.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255175 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agouse range-based for loops; NFCI
Sanjay Patel [Wed, 9 Dec 2015 22:45:45 +0000 (22:45 +0000)]
use range-based for loops; NFCI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255171 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSynchronize the logic for deciding to link a gv.
Rafael Espindola [Wed, 9 Dec 2015 22:44:00 +0000 (22:44 +0000)]
Synchronize the logic for deciding to link a gv.

We were deciding to not link an available_externally gv over a
declaration, but then copying over the body anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255169 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[PGO] Rename the profdata filename to avoid the conflict b/w tests.
Rong Xu [Wed, 9 Dec 2015 21:27:59 +0000 (21:27 +0000)]
[PGO] Rename the profdata filename to avoid the conflict b/w tests.

Two tests diag_mismatch.ll and diag_no_funcprofdata.ll generates the same
profdata filename which can conflict in current test runs. This patch
renames them to have different names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255158 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoIR: Make ConstantDataArray::getFP actually return a ConstantDataArray
Justin Bogner [Wed, 9 Dec 2015 21:21:07 +0000 (21:21 +0000)]
IR: Make ConstantDataArray::getFP actually return a ConstantDataArray

The ConstantDataArray::getFP(LLVMContext &, ArrayRef<uint16_t>)
overload has had a typo in it since it was written, where it will
create a Vector instead of an Array. This obviously doesn't work at
all, but it turns out that until r254991 there weren't actually any
callers of this overload. Fix the typo and add some test coverage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255157 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ThinLTO] Release files read when creating combined index in gold plugin
Teresa Johnson [Wed, 9 Dec 2015 21:11:42 +0000 (21:11 +0000)]
[ThinLTO] Release files read when creating combined index in gold plugin

This wasn't causing an issue since at HEAD we exit the linker completely
after creating the combined index.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255156 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Float2Int] Don't operate on vector instructions
Reid Kleckner [Wed, 9 Dec 2015 21:08:18 +0000 (21:08 +0000)]
[Float2Int] Don't operate on vector instructions

This fixes a crash bug. It's also not clear if we'd want to do this
transform for vectors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@255155 91177308-0d34-0410-b5e6-96231b3b80d8