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7 years agoUse range algorithms instead of unpacking begin/end
David Majnemer [Thu, 11 Aug 2016 21:15:00 +0000 (21:15 +0000)]
Use range algorithms instead of unpacking begin/end

No functionality change is intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278417 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Allow non-returning calls in hardware loops
Krzysztof Parzyszek [Thu, 11 Aug 2016 21:14:25 +0000 (21:14 +0000)]
[Hexagon] Allow non-returning calls in hardware loops

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278416 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[vim] Add more attributes to llvm.vim
David Majnemer [Thu, 11 Aug 2016 21:14:05 +0000 (21:14 +0000)]
[vim] Add more attributes to llvm.vim

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278415 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU: Remove unused tablegen utilities
Matt Arsenault [Thu, 11 Aug 2016 21:08:43 +0000 (21:08 +0000)]
AMDGPU: Remove unused tablegen utilities

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278414 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[SCEV] Update interface to handle SCEVExpander insert point motion.
Geoff Berry [Thu, 11 Aug 2016 21:05:17 +0000 (21:05 +0000)]
[SCEV] Update interface to handle SCEVExpander insert point motion.

Summary:
This is an extension of the fix in r271424.  That fix dealt with builder
insert points being moved by SCEV expansion, but only for the lifetime
of the expand call.  This change modifies the interface so that LSR can
safely call expand multiple times at the same insert point and do the
right thing if one of the expansions decides to move the original insert
point.

This is a fix for PR28719.

Reviewers: sanjoy

Subscribers: llvm-commits, mcrosier, mzolotukhin

Differential Revision: https://reviews.llvm.org/D23342

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278413 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove empty file left by partial reversion.
Tim Northover [Thu, 11 Aug 2016 21:01:15 +0000 (21:01 +0000)]
Remove empty file left by partial reversion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278411 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: add translation support for shift operations.
Tim Northover [Thu, 11 Aug 2016 21:01:13 +0000 (21:01 +0000)]
GlobalISel: add translation support for shift operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278410 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: support zext & sext during translation phase.
Tim Northover [Thu, 11 Aug 2016 21:01:10 +0000 (21:01 +0000)]
GlobalISel: support zext & sext during translation phase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278409 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix type truncation warnings
Teresa Johnson [Thu, 11 Aug 2016 20:38:39 +0000 (20:38 +0000)]
Fix type truncation warnings

Avoid type truncation warnings from a 32-bit bot due to size_t not
being unsigned long long, by converting the variables and constants to
unsigned. This was introduced by r278338 and caused warnings here:
http://bb.pgr.jp/builders/i686-mingw32-RA-on-linux/builds/15527/steps/build_llvmclang/logs/warnings%20%287%29

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278406 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMove GVNHoist tests into their own directory since it is a separate pass
Daniel Berlin [Thu, 11 Aug 2016 20:35:07 +0000 (20:35 +0000)]
Move GVNHoist tests into their own directory since it is a separate pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278404 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU : Add intrinsic for instruction v_cvt_pk_u8_f32
Wei Ding [Thu, 11 Aug 2016 20:34:48 +0000 (20:34 +0000)]
AMDGPU : Add intrinsic for instruction v_cvt_pk_u8_f32

Differential Revision: http://reviews.llvm.org/D23336

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278403 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert rL278384 which caused several buildbot failures (like check failures in CodeGe...
Wei Mi [Thu, 11 Aug 2016 20:33:37 +0000 (20:33 +0000)]
Revert rL278384 which caused several buildbot failures (like check failures in CodeGen/X86/clz.ll).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278402 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix PR 28933
Daniel Berlin [Thu, 11 Aug 2016 20:32:43 +0000 (20:32 +0000)]
Fix PR 28933

Summary:
This fixes PR 28933 by making sure GVNHoist does not try to recreate memory
accesses when it has not actually moved them.

Reviewers: sebpop

Subscribers: llvm-commits, george.burgess.iv

Differential Revision: https://reviews.llvm.org/D23411

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278401 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ADT] Add relation operators for Optional
Tim Shen [Thu, 11 Aug 2016 20:10:15 +0000 (20:10 +0000)]
[ADT] Add relation operators for Optional

Summary: Make Optional's behavior the same as the coming std::optional.

Reviewers: dblaikie

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23178

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278397 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoCodeGen: Avoid dereferencing end() in MachineScheduler
Duncan P. N. Exon Smith [Thu, 11 Aug 2016 20:03:09 +0000 (20:03 +0000)]
CodeGen: Avoid dereferencing end() in MachineScheduler

Check MachineInstr::isDebugValue for the same instruction as we're
calling isSchedBoundary, avoiding the possibility of dereferencing
end().

This is a functionality change even when I!=end().  Matthias had a look
and agrees this is the right resolution (as opposed to checking for
end()).

This is triggered by a huge number of tests, but they happen to
magically pass right now.  I found this because WIP patches for PR26753
convert them into crashes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278394 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU: Prune includes
Matt Arsenault [Thu, 11 Aug 2016 19:18:50 +0000 (19:18 +0000)]
AMDGPU: Prune includes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278391 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Standardize "select" pseudo-instructions
Krzysztof Parzyszek [Thu, 11 Aug 2016 19:12:18 +0000 (19:12 +0000)]
[Hexagon] Standardize "select" pseudo-instructions

- PS_pselect: general register pairs
- PS_vselect: vector registers (+ 128B version)
- PS_wselect: vector register pairs (+ 128B version)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278390 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoWholeProgramDevirt: generate more detailed and accurate remarks.
Ivan Krasin [Thu, 11 Aug 2016 19:09:02 +0000 (19:09 +0000)]
WholeProgramDevirt: generate more detailed and accurate remarks.

Summary:
Keep track of all methods for which we have devirtualized at least
one call and then print them sorted alphabetically. That allows to
avoid duplicates and also makes the order deterministic.

Add optimization names into the remarks, so that it's easier to
understand how has each method been devirtualized.

Fix a bug when wrong methods could have been reported for
tryVirtualConstProp.

Reviewers: kcc, mehdi_amini

Differential Revision: https://reviews.llvm.org/D23297

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278389 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove the restriction that MachineSinking is now stopped by "insert_subreg,
Wei Mi [Thu, 11 Aug 2016 18:42:56 +0000 (18:42 +0000)]
Remove the restriction that MachineSinking is now stopped by "insert_subreg,
subreg_to_reg, and reg_sequence" instructions.

This is to solve PR28852. The restriction was added at 2010 to make better register
coalescing. We assumed that it was not necessary any more. Testing results on x86
supported the assumption.

We will look closely to any performance impact it will bring and will be prepared
to help analyzing performance problem found on other architectures.

Differential Revision: https://reviews.llvm.org/D23210

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278384 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIf-conversion incorrectly calculates liveness of redefined registers
Krzysztof Parzyszek [Thu, 11 Aug 2016 18:42:06 +0000 (18:42 +0000)]
If-conversion incorrectly calculates liveness of redefined registers

Differential Revision: https://reviews.llvm.org/D23207

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278383 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoTest commit
Barnabas Bittner [Thu, 11 Aug 2016 18:34:29 +0000 (18:34 +0000)]
Test commit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278380 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoTarget independent codesize heuristics for Loop Idiom Recognition
Andrew Kaylor [Thu, 11 Aug 2016 18:28:33 +0000 (18:28 +0000)]
Target independent codesize heuristics for Loop Idiom Recognition

Patch by Sunita Marathe

Differential Revision: https://reviews.llvm.org/D21449

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278378 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd a new method to create SimpleInliner instance and make pre-inliner use this.
Easwaran Raman [Thu, 11 Aug 2016 18:24:08 +0000 (18:24 +0000)]
Add a new method to create SimpleInliner instance and make pre-inliner use this.

This adds a createFunctionInliningPass pass that takes an InlineParams object and use this to create the pre-inliner pass. This prevents the regular inliner's threshold flag from influencing the preinliner.

Differential revision: https://reviews.llvm.org/D23377

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278377 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Skip byval arguments when checking parameter attributes
Krzysztof Parzyszek [Thu, 11 Aug 2016 18:15:16 +0000 (18:15 +0000)]
[Hexagon] Skip byval arguments when checking parameter attributes

From the point of view of register assignment, byval parameters are
ignored: a byval parameter is not going to be assigned to a register,
and it will not affect the assignments of subsequent parameters.
When matching registers with parameters in the bit tracker, make sure
to skip byval parameters before advancing the registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278375 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoImprove virtual register handling when computing debug information
Dominic Chen [Thu, 11 Aug 2016 17:52:40 +0000 (17:52 +0000)]
Improve virtual register handling when computing debug information

Summary: Some backends, like WebAssembly, use virtual registers instead of physical registers. This crashes the DbgValueHistoryCalculator pass, which assumes that all registers are physical. Instead, skip virtual registers when iterating aliases, and assume that they are clobbered.

Reviewers: dexonsmith, dschuff, aprantl

Subscribers: yurydelendik, llvm-commits, jfb, sunfish

Differential Revision: https://reviews.llvm.org/D22590

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278371 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMake TwoAddressInstructionPass::rescheduleMIBelowKill subreg-aware
Michael Kuperstein [Thu, 11 Aug 2016 17:38:33 +0000 (17:38 +0000)]
Make TwoAddressInstructionPass::rescheduleMIBelowKill subreg-aware

This fixes PR28824.

Differential Revision: https://reviews.llvm.org/D23220

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278370 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU: Fix crashes on memory functions
Matt Arsenault [Thu, 11 Aug 2016 17:31:42 +0000 (17:31 +0000)]
AMDGPU: Fix crashes on memory functions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278369 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAArch64: Assert on analyzeBranch failing
Matt Arsenault [Thu, 11 Aug 2016 17:22:59 +0000 (17:22 +0000)]
AArch64: Assert on analyzeBranch failing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278366 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AliasSetTracker] Delete dead code
Michael Kuperstein [Thu, 11 Aug 2016 17:20:20 +0000 (17:20 +0000)]
[AliasSetTracker] Delete dead code

Deletes unused remove() and containsPointer() interfaces. NFC.

Differential Revision: https://reviews.llvm.org/D23360

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278365 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix some Clang-tidy modernize and Include What You Use warnings.
Eugene Zelenko [Thu, 11 Aug 2016 17:20:18 +0000 (17:20 +0000)]
Fix some Clang-tidy modernize and Include What You Use warnings.

Differential revision: https://reviews.llvm.org/D23291

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278364 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd move ops to satisfy MSVC.
Teresa Johnson [Thu, 11 Aug 2016 17:19:53 +0000 (17:19 +0000)]
Add move ops to satisfy MSVC.

Try to appease MSVC bot:
http://lab.llvm.org:8011/builders/sanitizer-windows/builds/27164/steps/run%20tests/logs/stdio

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278363 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU: Remove custom getSubReg
Matt Arsenault [Thu, 11 Aug 2016 17:15:32 +0000 (17:15 +0000)]
AMDGPU: Remove custom getSubReg

This was kind of confusing, the subregister
class shouldn't really be necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278362 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU: Remove unused tracking of flat instructions
Matt Arsenault [Thu, 11 Aug 2016 17:15:28 +0000 (17:15 +0000)]
AMDGPU: Remove unused tracking of flat instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278361 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU : Fix SAD related instruction LIT tests function atttibute issues.
Wei Ding [Thu, 11 Aug 2016 17:14:17 +0000 (17:14 +0000)]
AMDGPU : Fix SAD related instruction LIT tests function atttibute issues.

Differential Revision: http://reviews.llvm.org/D23133

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278360 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoHexagon: Avoid dereferencing end() in HexagonCopyToCombine::findPairable
Duncan P. N. Exon Smith [Thu, 11 Aug 2016 16:40:03 +0000 (16:40 +0000)]
Hexagon: Avoid dereferencing end() in HexagonCopyToCombine::findPairable

Check for end() before skipping through debug values.  This avoids
dereferencing end() when the instruction is the final one in the basic
block.  (It still assumes that a debug value will not be the final
instruction in the basic block.  No tests seemed to violate that.)

Many Hexagon tests trigger this, but they happen to magically pass right
now.  I found this because WIP patches for PR26753 convert them into
crashes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278355 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU : Add LLVM intrinsics for SAD related instructions.
Wei Ding [Thu, 11 Aug 2016 16:33:53 +0000 (16:33 +0000)]
AMDGPU : Add LLVM intrinsics for SAD related instructions.

Differential Revision: http://reviews.llvm.org/D23133

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278354 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAdd (hopefully last) remaining missing dependences to llvm-lto2
Teresa Johnson [Thu, 11 Aug 2016 16:29:47 +0000 (16:29 +0000)]
Add (hopefully last) remaining missing dependences to llvm-lto2

There are still a few missing symbols reported by:
http://bb.pgr.jp/builders/i686-mingw32-RA-on-linux/builds/15535/steps/build_llvmclang/logs/stdio
http://bb.pgr.jp/builders/i686-mingw32-RA-on-linux/builds/15535/steps/build_llvmclang/logs/stdio

This should hopefully take care of them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278353 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: clear vreg mapping after translating each function
Tim Northover [Thu, 11 Aug 2016 16:21:29 +0000 (16:21 +0000)]
GlobalISel: clear vreg mapping after translating each function

Otherwise we only materialize (shared) constants in the first function they
appear in. This doesn't go well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278351 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove FIXME about asserting on the end iterator
Reid Kleckner [Thu, 11 Aug 2016 16:00:43 +0000 (16:00 +0000)]
Remove FIXME about asserting on the end iterator

After machine block placement, MBBs may not have terminators, and it is
appropriate to check for the end iterator here. We can fold the check
into the next if, as well. This look is really just looking for BBs that
end in CATCHRET.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278350 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMore missing llvm-lto2 dependencies
Teresa Johnson [Thu, 11 Aug 2016 15:58:49 +0000 (15:58 +0000)]
More missing llvm-lto2 dependencies

Follow-on to r278341: Update CMakeLists.txt to match LLVMBuild.txt

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278349 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[MCJIT] Improve documentation and error handling for MCJIT::runFunction.
Lang Hames [Thu, 11 Aug 2016 15:56:23 +0000 (15:56 +0000)]
[MCJIT] Improve documentation and error handling for MCJIT::runFunction.

ExecutionEngine::runFunction is supposed to allow execution of arbitrary
function types, but MCJIT can only reasonably support a limited subset of
main-linke function types. This patch documents this limitation, and fixes
MCJIT::runFunction to abort with a meaningful error at runtime if called with
an unsupported function type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278348 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoX86: Use operator lookup for operator==, NFC
Duncan P. N. Exon Smith [Thu, 11 Aug 2016 15:51:29 +0000 (15:51 +0000)]
X86: Use operator lookup for operator==, NFC

Avoid relying on the MachineInstrBundleIterator operator== being
implemented as a member function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278347 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIR: Don't cast the end iterator to Instruction*
Duncan P. N. Exon Smith [Thu, 11 Aug 2016 15:45:04 +0000 (15:45 +0000)]
IR: Don't cast the end iterator to Instruction*

End iterators are usually sentinels, not actually Instruction* at all.
Stop casting to it just to get an iterator back.

There is likely no observable functionality change here right now
(although this is relying on UB, I doubt it was triggering anything),
but I'll be removing the cast soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278346 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoCodeGen: Check for a terminator in llvm::getFuncletMembership
Duncan P. N. Exon Smith [Thu, 11 Aug 2016 15:29:02 +0000 (15:29 +0000)]
CodeGen: Check for a terminator in llvm::getFuncletMembership

Check for an end iterator from MachineBasicBlock::getFirstTerminator in
llvm::getFuncletMembership.  If this is turned into an assertion, it
fires in 48 X86 testcases (for example,
CodeGen/X86/regalloc-spill-at-ehpad.ll).

Since this is likely a latent bug (shouldn't all basic blocks end with a
terminator?) I've filed PR28938.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278344 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[SLP] Make RecursionMaxDepth a command line option (NFC)
Matthew Simpson [Thu, 11 Aug 2016 15:28:45 +0000 (15:28 +0000)]
[SLP] Make RecursionMaxDepth a command line option (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278343 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agofix comment; NFC
Sanjay Patel [Thu, 11 Aug 2016 15:23:56 +0000 (15:23 +0000)]
fix comment; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278342 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix bot failure from r278338 due to missing dependences
Teresa Johnson [Thu, 11 Aug 2016 15:23:05 +0000 (15:23 +0000)]
Fix bot failure from r278338 due to missing dependences

Add some missing dependences to the llvm-lto2 tool to attempt to appease
missing symbols in link from bot:
http://bb.pgr.jp/builders/i686-mingw32-RA-on-linux/builds/15527

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278341 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agouse auto* with dyn_cast ; NFC
Sanjay Patel [Thu, 11 Aug 2016 15:21:21 +0000 (15:21 +0000)]
use auto* with dyn_cast ; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278340 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agogetParent()->getParent() == getFunction() ; NFC
Sanjay Patel [Thu, 11 Aug 2016 15:16:06 +0000 (15:16 +0000)]
getParent()->getParent() == getFunction() ; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278339 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRestore "Resolution-based LTO API."
Teresa Johnson [Thu, 11 Aug 2016 14:58:12 +0000 (14:58 +0000)]
Restore "Resolution-based LTO API."

This restores commit r278330, with fixes for a few bot failures:
- Fix a late change I had made to the save temps output file that I
  missed due to existing files sitting on my disk
- Fix a bunch of Windows bot failures with "ambiguous call to overloaded
  function" due to confusion between llvm::make_unique vs
  std::make_unique (preface the new make_unique calls with "llvm::")
- Attempt to fix a modules bot failure by adding a missing include
  to LTO/Config.h.

Original change:

Resolution-based LTO API.

Summary:
This introduces a resolution-based LTO API. The main advantage of this API over
existing APIs is that it allows the linker to supply a resolution for each
symbol in each object, rather than the combined object as a whole. This will
become increasingly important for use cases such as ThinLTO which require us
to process symbol resolutions in a more complicated way than just adjusting
linkage.

Patch by Peter Collingbourne.

Reviewers: rafael, tejohnson, mehdi_amini

Subscribers: lhames, tejohnson, mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D20268

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278338 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agorevert 278334
Ehsan Amiri [Thu, 11 Aug 2016 14:51:14 +0000 (14:51 +0000)]
revert 278334

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278337 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "[AMDGPU] fix failure on printing of non-existing instruction operands."
Valery Pykhtin [Thu, 11 Aug 2016 14:22:05 +0000 (14:22 +0000)]
Revert "[AMDGPU] fix failure on printing of non-existing instruction operands."

This reverts revision 278333, newly added test failed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278336 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoExtend trip count instead of truncating IV in LFTR, when legal
Ehsan Amiri [Thu, 11 Aug 2016 13:51:20 +0000 (13:51 +0000)]
Extend trip count instead of truncating IV in LFTR, when legal

When legal, extending trip count in the loop control logic generates better code compared to truncating IV. This is because

(1) extending trip count is a loop invariant operation (see genLoopLimit where we prove trip count is loop invariant).
(2) Scalar Evolution seems to have problems understanding trunc when computing loop trip count. So removing them allows better analysis performed in Scalar Evolution. (In particular this fixes PR 28363 which is the motivation for this change).

I am not going to perform any performance test. Any degradation caused by this should be an indication of a bug elsewhere.

To prove legality, we rely on SCEV to prove zext(trunc(IV)) == IV (or similarly for sext). If this holds, we can prove equivalence of trunc(IV)==ExitCnt (1) and IV == zext(ExitCnt). Simply take zext of boths sides of (1) and apply the proven equivalence.

https://reviews.llvm.org/D23075

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278334 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AMDGPU] fix failure on printing of non-existing instruction operands.
Valery Pykhtin [Thu, 11 Aug 2016 13:49:46 +0000 (13:49 +0000)]
[AMDGPU] fix failure on printing of non-existing instruction operands.

Differential revision: https://reviews.llvm.org/D23323

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278333 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert "Resolution-based LTO API."
Teresa Johnson [Thu, 11 Aug 2016 13:03:56 +0000 (13:03 +0000)]
Revert "Resolution-based LTO API."

This reverts commit r278330.

I made a change to the save temps output that is causing issues with the
bots. Didn't realize this because I had older output files sitting on
disk in my test output directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278331 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoResolution-based LTO API.
Teresa Johnson [Thu, 11 Aug 2016 12:56:40 +0000 (12:56 +0000)]
Resolution-based LTO API.

Summary:
This introduces a resolution-based LTO API. The main advantage of this API over
existing APIs is that it allows the linker to supply a resolution for each
symbol in each object, rather than the combined object as a whole. This will
become increasingly important for use cases such as ThinLTO which require us
to process symbol resolutions in a more complicated way than just adjusting
linkage.

Patch by Peter Collingbourne.

Reviewers: rafael, tejohnson, mehdi_amini

Subscribers: lhames, tejohnson, mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D20268

Address review comments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278330 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFixed VS2015 (Update 3) warning - differing const/volatile qualifiers for overridden...
Simon Pilgrim [Thu, 11 Aug 2016 12:19:43 +0000 (12:19 +0000)]
Fixed VS2015 (Update 3) warning - differing const/volatile qualifiers for overridden function

Dropped the const qualifier to match llvm::CallLowering::lowerCall

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278329 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AVX512] Fix extractelement i1 lowering.
Igor Breger [Thu, 11 Aug 2016 12:13:46 +0000 (12:13 +0000)]
[AVX512] Fix extractelement i1 lowering.
The previous implementation (not custom) doesn't enforce zeroing off upper bits. The assumption is that i1 PRODUCER (truncate and extractelement) must zero all upper bits, so i1 CONSUMER instructions ( test, zext, save, etc) can be done without additional zeroing.
Make extractelement i1 lowering custom for all vector i1.

Differential Revision: http://reviews.llvm.org/D23246

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278328 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAvoid false dependencies of undef machine operands
Marina Yatsina [Thu, 11 Aug 2016 07:32:08 +0000 (07:32 +0000)]
Avoid false dependencies of undef machine operands

This patch helps avoid false dependencies on undef registers by updating the machine instructions' undef operand to use a register that the instruction is truly dependent on, or use a register with clearance higher than Pref.

Pseudo example:

loop:
xmm0 = ...
xmm1 = vcvtsi2sdl eax, xmm0<undef>
... = inst xmm0
jmp loop

In this example, selecting xmm0 as the undef register creates false dependency between loop iterations.
This false dependency cannot be solved by inserting an xor before vcvtsi2sdl because xmm0 is alive at the point of the vcvtsi2sdl instruction.
Selecting a different register instead of xmm0, especially a register that is not used in the loop, will eliminate this problem.

Differential Revision: https://reviews.llvm.org/D22466

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278321 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Debug Info] Added a LIT test that covers the fix committed in rL277290.
Amjad Aboud [Thu, 11 Aug 2016 07:22:53 +0000 (07:22 +0000)]
[Debug Info] Added a LIT test that covers the fix committed in rL277290.

Differential Revision: http://reviews.llvm.org/D23056

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278320 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AVX-512] Promote 512-bit integer loads to v8i64 similar to what is done for 128...
Craig Topper [Thu, 11 Aug 2016 06:04:07 +0000 (06:04 +0000)]
[AVX-512] Promote 512-bit integer loads to v8i64 similar to what is done for 128/256-bit vectors for overall consistency.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278318 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AVX-512] Add patterns to allow EVEX encoded stores of v16i16/v8i16/v16i8/v32i8 even...
Craig Topper [Thu, 11 Aug 2016 06:04:04 +0000 (06:04 +0000)]
[AVX-512] Add patterns to allow EVEX encoded stores of v16i16/v8i16/v16i8/v32i8 even when BWI is not supported.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278317 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AVX-512] Fix the 128-bit and 256-bit nontemporal load patterns with elements type...
Craig Topper [Thu, 11 Aug 2016 06:04:00 +0000 (06:04 +0000)]
[AVX-512] Fix the 128-bit and 256-bit nontemporal load patterns with elements type other than i64. These loads have all been promoted to v2i64/v4i64 loads so we need bitcasts or we end up selecting VMOVDQA32/VMOVDQU32 instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278316 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Profile] improve warning control option
Xinliang David Li [Thu, 11 Aug 2016 05:09:30 +0000 (05:09 +0000)]
[Profile] improve warning control option

Change --no-pgo-warn-missing to -pgo-warn-missing-function
and negate the default. /NFC

Add more test to make sure the warning is off by default

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278314 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[WebAssembly] Cleanup trailing whitespace
Dominic Chen [Thu, 11 Aug 2016 04:10:56 +0000 (04:10 +0000)]
[WebAssembly] Cleanup trailing whitespace

Summary: Test for commit access.

Subscribers: jfb, dschuff

Differential Revision: https://reviews.llvm.org/D23392

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278313 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMake more fields of InlineParams Optional.
Easwaran Raman [Thu, 11 Aug 2016 03:58:05 +0000 (03:58 +0000)]
Make more fields of InlineParams Optional.

Differential revision: https://reviews.llvm.org/D23386

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278312 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Statepoints] Minor cosmetic change; NFC
Sanjoy Das [Thu, 11 Aug 2016 00:56:46 +0000 (00:56 +0000)]
[Statepoints] Minor cosmetic change; NFC

The verification failure message was missing a space.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278309 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[MachOYAML] Don't output empty ExportTrie
Chris Bieneman [Thu, 11 Aug 2016 00:20:03 +0000 (00:20 +0000)]
[MachOYAML] Don't output empty ExportTrie

The YAML representation was always outputting the root node of an export trie even if the trie was empty. While this doesn't really have any functional impact, it does add visual clutter to the yaml file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278307 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: support same ConstantExprs as Instructions.
Tim Northover [Wed, 10 Aug 2016 23:02:41 +0000 (23:02 +0000)]
GlobalISel: support same ConstantExprs as Instructions.

It's more than just inttoptr, but the others can't be tested until we have
support for non-trivial constants (they currently get unavoidably folded to a
ConstantInt).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278303 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ADT] Move LLVM_ATTRIBUTE_UNUSED_RESULT to the function, otherwise gcc 4.8 complains...
Tim Shen [Wed, 10 Aug 2016 22:35:38 +0000 (22:35 +0000)]
[ADT] Move LLVM_ATTRIBUTE_UNUSED_RESULT to the function, otherwise gcc 4.8 complains about it.

It's a fix for the original patch r278251.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278298 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: add tests forgotten in r278293.
Tim Northover [Wed, 10 Aug 2016 22:13:48 +0000 (22:13 +0000)]
GlobalISel: add tests forgotten in r278293.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278296 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LangRef] Fix formatting (no semantic change)
Sanjoy Das [Wed, 10 Aug 2016 21:48:24 +0000 (21:48 +0000)]
[LangRef] Fix formatting (no semantic change)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278294 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGlobalISel: implement simple function calls on AArch64.
Tim Northover [Wed, 10 Aug 2016 21:44:01 +0000 (21:44 +0000)]
GlobalISel: implement simple function calls on AArch64.

We're still limited in the arguments we support, but this at least handles the
basic cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278293 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU/SI: Implement amdgcn image intrinsics with sampler
Changpeng Fang [Wed, 10 Aug 2016 21:15:30 +0000 (21:15 +0000)]
AMDGPU/SI: Implement amdgcn image intrinsics with sampler

Summary:
  This patch define and implement amdgcn image intrinsics with sampler.

    1. define vdata type to be llvm_anyfloat_ty, address type to be llvm_anyfloat_ty,
       and rsrc type to be llvm_anyint_ty. As a result, we expect the intrinsics name
       to have three suffixes to overload each of these three types;

    2. D128 as well as two other flags are implied in the three types, for example,
       if you use v8i32 as resource type, then r128 is 0!

    3. don't expose TFE flag, and other flags are exposed in the instruction order:
       unrm, glc, slc, lwe and da.

Differential Revision: http://reviews.llvm.org/D22838

Reviewed by:
  arsenm and tstellarAMD

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278291 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoChanged sign of LastCallToStaticBouns
Piotr Padlewski [Wed, 10 Aug 2016 21:15:22 +0000 (21:15 +0000)]
Changed sign of LastCallToStaticBouns

Summary:
I think it is much better this way.
When I firstly saw line:
  Cost += InlineConstants::LastCallToStaticBonus;
I though that this is a bug, because everywhere where the cost is being reduced
it is usuing -=.

Reviewers: eraman, tejohnson, mehdi_amini

Subscribers: llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D23222

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278290 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoCodegen: Don't tail-duplicate blocks with un-analyzable fallthrough.
Kyle Butt [Wed, 10 Aug 2016 21:03:27 +0000 (21:03 +0000)]
Codegen: Don't tail-duplicate blocks with un-analyzable fallthrough.

If AnalyzeBranch can't analyze a block and it is possible to
fallthrough, then duplicating the block doesn't make sense, as only one
block can be the layout predecessor for the un-analyzable fallthrough.

Submitted wit a test case, but NOTE: the test case doesn't currently
fail. However, the test case fails with D20505 and would have saved me
some time debugging.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278288 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoCodeGen: If Convert blocks that would form a diamond when tail-merged.
Kyle Butt [Wed, 10 Aug 2016 20:45:56 +0000 (20:45 +0000)]
CodeGen: If Convert blocks that would form a diamond when tail-merged.

The following function currently relies on tail-merging for if
conversion to succeed. The common tail of cond_true and cond_false is
extracted, and this then forms a diamond pattern that can be
successfully if converted.

If this block does not get extracted, either because tail-merging is
disabled or the threshold is higher, we should still recognize this
pattern and if-convert it.

Fixed a regression in the original commit. Need to un-reverse branches after
reversing them, or other conversions go awry.

define i32 @t2(i32 %a, i32 %b) nounwind {
entry:
        %tmp1434 = icmp eq i32 %a, %b           ; <i1> [#uses=1]
        br i1 %tmp1434, label %bb17, label %bb.outer

bb.outer:               ; preds = %cond_false, %entry
        %b_addr.021.0.ph = phi i32 [ %b, %entry ], [ %tmp10, %cond_false ]
        %a_addr.026.0.ph = phi i32 [ %a, %entry ], [ %a_addr.026.0, %cond_false ]
        br label %bb

bb:             ; preds = %cond_true, %bb.outer
        %indvar = phi i32 [ 0, %bb.outer ], [ %indvar.next, %cond_true ]
        %tmp. = sub i32 0, %b_addr.021.0.ph
        %tmp.40 = mul i32 %indvar, %tmp.
        %a_addr.026.0 = add i32 %tmp.40, %a_addr.026.0.ph
        %tmp3 = icmp sgt i32 %a_addr.026.0, %b_addr.021.0.ph
        br i1 %tmp3, label %cond_true, label %cond_false

cond_true:              ; preds = %bb
        %tmp7 = sub i32 %a_addr.026.0, %b_addr.021.0.ph
        %tmp1437 = icmp eq i32 %tmp7, %b_addr.021.0.ph
        %indvar.next = add i32 %indvar, 1
        br i1 %tmp1437, label %bb17, label %bb

cond_false:             ; preds = %bb
        %tmp10 = sub i32 %b_addr.021.0.ph, %a_addr.026.0
        %tmp14 = icmp eq i32 %a_addr.026.0, %tmp10
        br i1 %tmp14, label %bb17, label %bb.outer

bb17:           ; preds = %cond_false, %cond_true, %entry
        %a_addr.026.1 = phi i32 [ %a, %entry ], [ %tmp7, %cond_true ], [ %a_addr.026.0, %cond_false ]
        ret i32 %a_addr.026.1
}

Without tail-merging or diamond-tail if conversion:
LBB1_1:                                 @ %bb
                                        @ =>This Inner Loop Header: Depth=1
        cmp     r0, r1
        ble     LBB1_3
@ BB#2:                                 @ %cond_true
                                        @   in Loop: Header=BB1_1 Depth=1
        subs    r0, r0, r1
        cmp     r1, r0
        it      ne
        cmpne   r0, r1
        bgt     LBB1_4
LBB1_3:                                 @ %cond_false
                                        @   in Loop: Header=BB1_1 Depth=1
        subs    r1, r1, r0
        cmp     r1, r0
        bne     LBB1_1
LBB1_4:                                 @ %bb17
        bx      lr

With diamond-tail if conversion, but without tail-merging:
@ BB#0:                                 @ %entry
        cmp     r0, r1
        it      eq
        bxeq    lr
LBB1_1:                                 @ %bb
                                        @ =>This Inner Loop Header: Depth=1
        cmp     r0, r1
        ite     le
        suble   r1, r1, r0
        subgt   r0, r0, r1
        cmp     r1, r0
        bne     LBB1_1
@ BB#2:                                 @ %bb17
        bx      lr

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278287 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoDisable sancov tests failing due to apparent endianness issues
Reid Kleckner [Wed, 10 Aug 2016 20:11:35 +0000 (20:11 +0000)]
Disable sancov tests failing due to apparent endianness issues

Undoes some of the effect of r278271

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278285 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[sancov] Port sancov -print-coverage-pcs to COFF
Reid Kleckner [Wed, 10 Aug 2016 20:08:19 +0000 (20:08 +0000)]
[sancov] Port sancov -print-coverage-pcs to COFF

The export table is not considered part of the object file symbol table,
so we have to look through it separately.

Reviewers: kcc

Differential Revision: https://reviews.llvm.org/D23321

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278284 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix UB in APInt::ashr
Jonathan Roelofs [Wed, 10 Aug 2016 19:50:14 +0000 (19:50 +0000)]
Fix UB in APInt::ashr

i64 -1, whose sign bit is the 0th one, can't be left shifted without invoking UB.

https://reviews.llvm.org/D23362

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278280 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU: s_setpc_b64 should be an indirect branch
Matt Arsenault [Wed, 10 Aug 2016 19:20:02 +0000 (19:20 +0000)]
AMDGPU: s_setpc_b64 should be an indirect branch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278278 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU: Set sizes on control flow pseudos
Matt Arsenault [Wed, 10 Aug 2016 19:11:51 +0000 (19:11 +0000)]
AMDGPU: Set sizes on control flow pseudos

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278276 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU: Remove empty file comment
Matt Arsenault [Wed, 10 Aug 2016 19:11:48 +0000 (19:11 +0000)]
AMDGPU: Remove empty file comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278275 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU: Remove unnecessary cast
Matt Arsenault [Wed, 10 Aug 2016 19:11:45 +0000 (19:11 +0000)]
AMDGPU: Remove unnecessary cast

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278274 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU: Change insertion point of si_mask_branch
Matt Arsenault [Wed, 10 Aug 2016 19:11:42 +0000 (19:11 +0000)]
AMDGPU: Change insertion point of si_mask_branch

Insert before the skip branch if one is created.
This is a somewhat more natural placement relative
to the skip branches, and makes it possible to implement
analyzeBranch for skip blocks.

The test changes are mostly due to a quirk where
the block label is not emitted if there is a terminator
that is not also a branch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278273 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoAMDGPU: Use CreateStackObject instead of CreateSpillStackObject
Matt Arsenault [Wed, 10 Aug 2016 19:11:36 +0000 (19:11 +0000)]
AMDGPU: Use CreateStackObject instead of CreateSpillStackObject

I'm not sure what the difference is, but no other target
uses this for emergency spill slots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278272 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[sancov] Run more sancov tests on non-x86-Linux machines
Reid Kleckner [Wed, 10 Aug 2016 19:03:18 +0000 (19:03 +0000)]
[sancov] Run more sancov tests on non-x86-Linux machines

Add the $arch-registered-target features that clang uses to disable
tests that require a registered backend, so that we can run the sancov
tests on Windows. LLVM's lit suite did not appear to have a per-test way
to do this, and I would rather not split up the sancov tests into
architecture directories.

Split out of https://reviews.llvm.org/D23321

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278271 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[x86, AVX] allow FP vector select folding to bitwise logic ops (PR28895)
Sanjay Patel [Wed, 10 Aug 2016 19:00:11 +0000 (19:00 +0000)]
[x86, AVX] allow FP vector select folding to bitwise logic ops (PR28895)

This handles the case in:
https://llvm.org/bugs/show_bug.cgi?id=28895

...but we are not getting all of the possibilities yet.
Eg, we use 'X86::FANDN' for scalar FP select combines.

That enhancement is filed as:
https://llvm.org/bugs/show_bug.cgi?id=28925

Differential Revision: https://reviews.llvm.org/D23337

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278270 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[IndVarSimplify] Eliminate zext of a signed IV when the IV is known to be non-negative
Andrew Kaylor [Wed, 10 Aug 2016 18:56:35 +0000 (18:56 +0000)]
[IndVarSimplify] Eliminate zext of a signed IV when the IV is known to be non-negative

Patch by Li Huang

Differential Revision: https://reviews.llvm.org/D18867

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278269 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoLiveIntervalAnalysis: fix a crash in repairOldRegInRange
Nicolai Haehnle [Wed, 10 Aug 2016 18:51:14 +0000 (18:51 +0000)]
LiveIntervalAnalysis: fix a crash in repairOldRegInRange

Summary:
See the new test case for one that was (non-deterministically) crashing
on trunk and deterministically hit the assertion that I added in D23302.
Basically, the machine function contains a sequence

     DS_WRITE_B32 %vreg4, %vreg14:sub0, ...
     DS_WRITE_B32 %vreg4, %vreg14:sub0, ...
     %vreg14:sub1<def> = COPY %vreg14:sub0

and SILoadStoreOptimizer::mergeWrite2Pair merges the two DS_WRITE_B32
instructions into one before calling repairIntervalsInRange.

Now repairIntervalsInRange wants to repair %vreg14, in particular, and
ends up trying to repair %vreg14:sub1 as well, but that only becomes
active _after_ the range that is to be repaired, hence the crash due
to LR.find(...) == LR.begin() at the start of repairOldRegInRange.

I believe that just skipping those subrange is fine, but again, not too
familiar with that code.

Reviewers: MatzeB, kparzysz, tstellarAMD

Subscribers: llvm-commits, MatzeB

Differential Revision: https://reviews.llvm.org/D23303

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278268 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ValueTracking] An improvement to IR ValueTracking on Non-negative Integers
Andrew Kaylor [Wed, 10 Aug 2016 18:47:19 +0000 (18:47 +0000)]
[ValueTracking] An improvement to IR ValueTracking on Non-negative Integers

Patch by Li Huang

Differential Revision: https://reviews.llvm.org/D18777

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278267 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Remove unused variants of LO/HI instructions
Krzysztof Parzyszek [Wed, 10 Aug 2016 18:40:36 +0000 (18:40 +0000)]
[Hexagon] Remove unused variants of LO/HI instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278266 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoCodegen: Tail Merge: Be less aggressive with special cases.
Kyle Butt [Wed, 10 Aug 2016 18:36:18 +0000 (18:36 +0000)]
Codegen: Tail Merge: Be less aggressive with special cases.

This change makes it possible for tail-duplication and tail-merging to
be disjoint. By being less aggressive when merging during layout, there are no
overlapping cases between tail-duplication and tail-merging, provided the
thresholds are disjoint.

There is a remaining TODO to benchmark the succ_size() test for non-layout tail
merging.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278265 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][SSE] Dropped blend(insertps(x,y),zero) combine - this is now handled by target...
Simon Pilgrim [Wed, 10 Aug 2016 18:10:29 +0000 (18:10 +0000)]
[X86][SSE] Dropped blend(insertps(x,y),zero) combine - this is now handled by target shuffle chain combining

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278260 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ADT] Removed synthesized constructor introduced in r278251, since MSVC doesn't suppo...
Tim Shen [Wed, 10 Aug 2016 18:08:38 +0000 (18:08 +0000)]
[ADT] Removed synthesized constructor introduced in r278251, since MSVC doesn't support them

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278259 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoTargetOpcodes: Rewrite the documentation for SUBREG_TO_REG
Matthias Braun [Wed, 10 Aug 2016 18:05:50 +0000 (18:05 +0000)]
TargetOpcodes: Rewrite the documentation for SUBREG_TO_REG

Differential Revision: https://reviews.llvm.org/D22708

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278258 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Simplify the SplitConst32/64 pass
Krzysztof Parzyszek [Wed, 10 Aug 2016 18:05:47 +0000 (18:05 +0000)]
[Hexagon] Simplify the SplitConst32/64 pass

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278256 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Hexagon] Add extra patterns for single-precision min/max instructions
Krzysztof Parzyszek [Wed, 10 Aug 2016 17:56:24 +0000 (17:56 +0000)]
[Hexagon] Add extra patterns for single-precision min/max instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278252 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[ADT] Add make_scope_exit().
Tim Shen [Wed, 10 Aug 2016 17:52:09 +0000 (17:52 +0000)]
[ADT] Add make_scope_exit().

Summary: make_scope_exit() is described in C++ proposal p0052r2, which uses RAII to do cleanup works at scope exit.

Reviewers: chandlerc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D22796

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278251 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix LCSSA increased compile time
Rong Xu [Wed, 10 Aug 2016 17:49:11 +0000 (17:49 +0000)]
Fix LCSSA increased compile time

We are seeing r276077 drastically increasing compiler time for our larger
benchmarks in PGO profile generation build (both clang based and IR based
mode) -- it can be 20x slower than without the patch (like from 30 secs to
780 secs)

The increased time are all in pass LCSSA. The problematic code is about
PostProcessPHIs after use-rewrite. Note that the InsertedPhis from ssa_updater
is accumulating (never been cleared). Since the inserted PHIs are added to the
candidate for each rewrite, The earlier ones will be repeatedly added. Later
when adding the new PHIs to the work-list, we don't check the duplication
either. This can result in extremely long work-list that containing tons of
duplicated PHIs.

This patch fixes the issue by hoisting the code out of the loop.

Differential Revision: http://reviews.llvm.org/D23344

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278250 91177308-0d34-0410-b5e6-96231b3b80d8