6 years agoAvoid early pipefail exits due to grep failures in stage comparisons.
Dimitry Andric [Mon, 20 Jul 2015 22:24:40 +0000 (22:24 +0000)]
Avoid early pipefail exits due to grep failures in stage comparisons.

If objects or executables did not contain any RPATH, grep would return
nonzero, and the whole stage comparison loop would unexpectedly exit.
Fix this by checking the grep result explicitly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242722 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSince BSD cmp(1) does not support the --ignore-initial option, use the
Dimitry Andric [Mon, 20 Jul 2015 22:07:27 +0000 (22:07 +0000)]
Since BSD cmp(1) does not support the --ignore-initial option, use the
more portable 3rd and 4th arguments to skip the first 16 bytes during
the comparison of Phase2 and Phase3 objects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242721 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd 'const' to a few more functions in MachineFrameInfo
Krzysztof Parzyszek [Mon, 20 Jul 2015 22:05:38 +0000 (22:05 +0000)]
Add 'const' to a few more functions in MachineFrameInfo

Reviewer: Eric Christopher

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242720 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix comment typo (test commit). NFC
Geoff Berry [Mon, 20 Jul 2015 22:03:52 +0000 (22:03 +0000)]
Fix comment typo (test commit). NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242719 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSimplify now that we can iterate backwards. NFC.
Rafael Espindola [Mon, 20 Jul 2015 21:45:56 +0000 (21:45 +0000)]
Simplify now that we can iterate backwards. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242715 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Refactor the prologue/epilogue emission to be more robust.
Quentin Colombet [Mon, 20 Jul 2015 21:42:14 +0000 (21:42 +0000)]
[ARM] Refactor the prologue/epilogue emission to be more robust.

This is the first step toward supporting shrink-wrapping for this target.

The changes could be summarized by these items:
- Expand the tail-call return as part of the expand pseudo pass.
- Get rid of the assumptions that the epilogue is the exit block:
  * Do not assume which registers are free in the epilogue. (This indirectly
    improve the lowering of the code for the segmented stacks, see the test
  * Take into account that the basic block can be empty.

Related to <rdar://problem/20821730>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242714 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[NVPTX] make load on global readonly memory to use ldg
Jingyue Wu [Mon, 20 Jul 2015 21:28:54 +0000 (21:28 +0000)]
[NVPTX] make load on global readonly memory to use ldg

[NVPTX] make load on global readonly memory to use ldg

As describe in [1], ld.global.nc may be used to load memory by nvcc when
__restrict__ is used and compiler can detect whether read-only data cache
is safe to use.

This patch will try to check whether ldg is safe to use and use them to
replace ld.global when possible. This change can improve the performance
by 18~29% on affected kernels (ratt*_kernel and rwdot*_kernel) in
S3D benchmark of shoc [2].

Patched by Xuetian Weng.

[1] http://docs.nvidia.com/cuda/kepler-tuning-guide/#read-only-data-cache
[2] https://github.com/vetter/shoc

Test Plan: test/CodeGen/NVPTX/load-with-non-coherent-cache.ll

Reviewers: jholewinski, jingyue

Subscribers: jholewinski, llvm-commits

Differential Revision: http://reviews.llvm.org/D11314

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242713 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSimplify iterating over the dynamic section and report broken ones.
Rafael Espindola [Mon, 20 Jul 2015 21:23:29 +0000 (21:23 +0000)]
Simplify iterating over the dynamic section and report broken ones.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242712 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Generate MUX from conditional transfers when dot-new not possible
Krzysztof Parzyszek [Mon, 20 Jul 2015 21:23:25 +0000 (21:23 +0000)]
[Hexagon] Generate MUX from conditional transfers when dot-new not possible

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242711 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSuppress two warnings from MSVC 2015 that are triggered under /W4. Since we turn...
Aaron Ballman [Mon, 20 Jul 2015 21:14:14 +0000 (21:14 +0000)]
Suppress two warnings from MSVC 2015 that are triggered under /W4. Since we turn off exceptions in the code base, C4577 is moot. C4091 triggers on system headers and is a benign construct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242708 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMIR Serialization: Initial serialization of machine constant pools.
Alex Lorenz [Mon, 20 Jul 2015 20:51:18 +0000 (20:51 +0000)]
MIR Serialization: Initial serialization of machine constant pools.

This commit implements the initial serialization of machine constant pools and
the constant pool index machine operands. The constant pool is serialized using
a YAML sequence of YAML mappings that represent the constant values.
The target-specific constant pool items aren't serialized by this commit.

Reviewers: Duncan P. N. Exon Smith

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242707 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agotest-release.sh: don't include /usr/local prefix in the tarball
Hans Wennborg [Mon, 20 Jul 2015 20:36:21 +0000 (20:36 +0000)]
test-release.sh: don't include /usr/local prefix in the tarball

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242706 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CMake] Cleanup tools/CMakeLists.txt to take advantage of the auto-registration that...
Chris Bieneman [Mon, 20 Jul 2015 20:36:06 +0000 (20:36 +0000)]
[CMake] Cleanup tools/CMakeLists.txt to take advantage of the auto-registration that was already partially working.

Re-landing r242059 which re-landed r241621... I'm really bad at this.

Summary (r242059):
This change re-lands r241621, with an additional fix that was required to allow tool sources to live outside the llvm checkout. It also no longer renames LLVM_EXTERNAL_*_SOURCE_DIR. This change was reverted in r241663, because it renamed several variables of the format LLVM_EXTERNAL_*_* to LLVM_TOOL_*_*.

Summary (r241621):
The tools CMakeLists file already had implicit tool registration, but there were a few things off about it that needed to be altered to make it work. This change addresses all that. The changes in this patch are:

* factored out canonicalizing tool names from paths to CMake variables * removed the LLVM_IMPLICIT_PROJECT_IGNORE mechanism in favor of LLVM_EXTERNAL_${nameUPPER}_BUILD which I renamed to LLVM_TOOL_${nameUPPER}_BUILD because it applies to internal and external tools
* removed ignore_llvm_tool_subdirectory() in favor of just setting LLVM_TOOL_${nameUPPER}_BUILD to Off
* Added create_llvm_tool_options() to resolve a bug in add_llvm_external_project() - the old LLVM_EXTERNAL_${nameUPPER}_BUILD would not work on a clean CMake directory because the option could be created after it was set in code.
* Removed all but the minimum required calls to add_llvm_external_project from tools/CMakeLists.txt

Differential Revision: http://reviews.llvm.org/D10665

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242705 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ImplicitNullChecks] Work with implicit defs.
Sanjoy Das [Mon, 20 Jul 2015 20:31:39 +0000 (20:31 +0000)]
[ImplicitNullChecks] Work with implicit defs.

This change generalizes the implicit null checks pass to work with
instructions that don't have any explicit register defs.  This lets us
use X86's `cmp` against memory as faulting load instructions.

Reviewers: reames, JosephTremoulet

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11286

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242703 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMIR Parser: Add support for quoted named global value operands.
Alex Lorenz [Mon, 20 Jul 2015 20:31:01 +0000 (20:31 +0000)]
MIR Parser: Add support for quoted named global value operands.

This commit extends the machine instruction lexer and implements support for
the quoted global value tokens. With this change the syntax for the global value
identifier tokens becomes identical to the syntax for the global identifier
tokens from the LLVM's assembly language.

Reviewers: Duncan P. N. Exon Smith

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242702 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRemove Elf_Rela_Iter and Elf_Rel_Iter.
Rafael Espindola [Mon, 20 Jul 2015 20:07:50 +0000 (20:07 +0000)]
Remove Elf_Rela_Iter and Elf_Rel_Iter.

Use just the pointers and check for invalid relocation sections.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242700 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[lit] Implement 'env' in the internal shell
Reid Kleckner [Mon, 20 Jul 2015 19:42:08 +0000 (19:42 +0000)]
[lit] Implement 'env' in the internal shell

The MSys 2 version of 'env' cannot be used to set 'TZ' in the
environment due to some portability hacks in the process spawning
compatibility layer[1]. This affects test/Object/archive-toc.test, which
tries to set TZ in the environment.

Other than that, this saves a subprocess invocation of a small unix
utility, which is makes the tests faster.

The internal shell does not support shell variable expansion, so this
idiom in the ASan tests isn't supported yet:

[1] https://github.com/Alexpux/MSYS2-packages/issues/294

Differential Revision: http://reviews.llvm.org/D11350

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242696 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] Change EON pattern to match more often.
Chad Rosier [Mon, 20 Jul 2015 18:42:27 +0000 (18:42 +0000)]
[AArch64] Change EON pattern to match more often.

Phabricator: http://reviews.llvm.org/D11359
Patch by Geoff Berry <gberry@codeaurora.org>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242694 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMiscellaneous Fixes for SparseBitVector
Daniel Berlin [Mon, 20 Jul 2015 18:26:23 +0000 (18:26 +0000)]
Miscellaneous Fixes for SparseBitVector


1. Fix return value in `SparseBitVector::operator&=`.
2. Add checks if SBV is being assigned is invoking SBV.

Reviewers: dberlin

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11342

Committed on behalf of sl@

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242693 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd missing test for r242296 (vec_sld)
Bill Schmidt [Mon, 20 Jul 2015 15:43:21 +0000 (15:43 +0000)]
Add missing test for r242296 (vec_sld)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242680 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoReport errors an invalid virtual addresses.
Rafael Espindola [Mon, 20 Jul 2015 14:45:03 +0000 (14:45 +0000)]
Report errors an invalid virtual addresses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242676 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRemove unnecessary code.
Rafael Espindola [Mon, 20 Jul 2015 14:29:00 +0000 (14:29 +0000)]
Remove unnecessary code.

We were locating the dynamic string table via both the section and segment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242674 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDGPU/SI: Add VI patterns to select FLAT instructions for global memory ops
Tom Stellard [Mon, 20 Jul 2015 14:28:41 +0000 (14:28 +0000)]
AMDGPU/SI: Add VI patterns to select FLAT instructions for global memory ops

The MUBUF addr64 bit has been removed on VI, so we must use FLAT
instructions when the pointer is stored in VGPRs.

Reviewers: arsenm

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11067

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242673 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSimplify the search for which segment has a virtual address. NFC.
Rafael Espindola [Mon, 20 Jul 2015 14:15:38 +0000 (14:15 +0000)]
Simplify the search for which segment has a virtual address. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242672 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSimplify iterating over program headers and detect corrupt ones.
Rafael Espindola [Mon, 20 Jul 2015 13:35:33 +0000 (13:35 +0000)]
Simplify iterating over program headers and detect corrupt ones.

We now use a simple pointer and have range loops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242669 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips] Added support for the ERETNC instruction.
Vasileios Kalintiris [Mon, 20 Jul 2015 12:28:56 +0000 (12:28 +0000)]
[mips] Added support for the ERETNC instruction.

Summary: This required adding the instruction predicate HasMips32r5.

Patch by Scott Egerton.

Reviewers: dsanders, vkalintiris

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11136

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242666 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agollvm-readobj: Handle invalid references to the string table.
Rafael Espindola [Mon, 20 Jul 2015 03:38:17 +0000 (03:38 +0000)]
llvm-readobj: Handle invalid references to the string table.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242658 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMove CHECKs closer to the RUN line.
Rafael Espindola [Mon, 20 Jul 2015 03:31:25 +0000 (03:31 +0000)]
Move CHECKs closer to the RUN line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242657 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agollvm-readobj: call exit(1) on error.
Rafael Espindola [Mon, 20 Jul 2015 03:23:55 +0000 (03:23 +0000)]
llvm-readobj: call exit(1) on error.

llvm-readobj exists for testing llvm. We can safely stop the program
the first time we know the input in corrupted.

This is in preparation for making it handle a few more broken files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242656 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRefactor duplicated code. NFC.
Rafael Espindola [Mon, 20 Jul 2015 03:01:49 +0000 (03:01 +0000)]
Refactor duplicated code. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242655 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "MergeFuncs: Transfer the function parameter attributes to the call site"
Arnold Schwaighofer [Sun, 19 Jul 2015 19:30:43 +0000 (19:30 +0000)]
Revert "MergeFuncs: Transfer the function parameter attributes to the call site"

It is okay to not transfer parameter attributes.

This reverts commit r242558.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242646 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Tidied up vector CTLZ/CTTZ. NFCI.
Simon Pilgrim [Sun, 19 Jul 2015 17:09:43 +0000 (17:09 +0000)]
[X86][SSE] Tidied up vector CTLZ/CTTZ. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242645 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoNarrow Callee scope, suggestion from David Blaikie.
Yaron Keren [Sun, 19 Jul 2015 15:48:07 +0000 (15:48 +0000)]
Narrow Callee scope, suggestion from David Blaikie.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242644 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Reordered cast vectorization costs. NFCI.
Simon Pilgrim [Sun, 19 Jul 2015 15:36:12 +0000 (15:36 +0000)]
[X86][SSE] Reordered cast vectorization costs. NFCI.

Reordered the data tables at the top and placed the lookups after. The first stage in the yak shaving necessary to get more accurate costs for a variety of targets given the recent improvements to SINT_TO_FP/UINT_TO_FP/SIGN_EXTEND vector lowering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242643 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDe-duplicate CS.getCalledFunction() expression.
Yaron Keren [Sun, 19 Jul 2015 11:52:02 +0000 (11:52 +0000)]
De-duplicate CS.getCalledFunction() expression.

Not sure if the optimizer will save the call as getCalledFunction()
is not a trivial access function but the code is clearer this way.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242641 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DAGCombiner] Fixed minor typo that was missed in D9097.
Simon Pilgrim [Sun, 19 Jul 2015 11:31:40 +0000 (11:31 +0000)]
[DAGCombiner] Fixed minor typo that was missed in D9097.

We don't bitcast the UNDEFs - that is done in visitVECTOR_SHUFFLE, and the getValueType should come from the operand's SDValue not the SDNode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242640 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add support for tbyte memory operand size for Intel-syntax x86 assembly
Michael Kuperstein [Sun, 19 Jul 2015 11:03:08 +0000 (11:03 +0000)]
[X86] Add support for tbyte memory operand size for Intel-syntax x86 assembly

Differential Revision: http://reviews.llvm.org/D11257
Patch by: marina.yatsina@intel.com

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242639 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRemove TargetInstrInfo::canFoldMemoryOperand
Simon Pilgrim [Sun, 19 Jul 2015 10:50:53 +0000 (10:50 +0000)]
Remove TargetInstrInfo::canFoldMemoryOperand

canFoldMemoryOperand is not actually used anywhere in the codebase - all existing users instead call foldMemoryOperand directly when they wish to fold and can correctly deduce what they need from the return value.

This patch removes the canFoldMemoryOperand base function and the target implementations; only x86 had a real (bit-rotted) implementation, although AMDGPU had a preparatory stub that had never needed to be completed.

Differential Revision: http://reviews.llvm.org/D11331

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242638 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAVX-512: Floating point conversions for SKX - DAG Lowering.
Elena Demikhovsky [Sun, 19 Jul 2015 10:17:33 +0000 (10:17 +0000)]
AVX-512: Floating point conversions for SKX - DAG Lowering.
SKX supports conversion for all FP types. Integer types include doublewords and quardwords.
I added "Legal" status for these nodes and a bunch of tests.
I added "NoVLX" for AVX DAG selection to force VLX instructions selection when VLX is supported.

Differential Revision: http://reviews.llvm.org/D11255

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242637 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse SDValue bool check. NFCI.
Simon Pilgrim [Sun, 19 Jul 2015 09:56:36 +0000 (09:56 +0000)]
Use SDValue bool check. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242636 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LIT] Allow for executeCommand to take the stdin input.
Eric Fiselier [Sun, 19 Jul 2015 00:28:14 +0000 (00:28 +0000)]
[LIT] Allow for executeCommand to take the stdin input.

Summary: This patch allows executeCommand to pass a string to the processes stdin.

Reviewers: ddunbar, jroelofs

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11332

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242631 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Updated SHL/LSHR i64 vectorization costs.
Simon Pilgrim [Sat, 18 Jul 2015 20:06:30 +0000 (20:06 +0000)]
[X86][SSE] Updated SHL/LSHR i64 vectorization costs.

This was missed in D8416.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242621 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AggressiveAntiDepBreaker] Use range loops for multimap access.
Benjamin Kramer [Sat, 18 Jul 2015 20:05:10 +0000 (20:05 +0000)]
[AggressiveAntiDepBreaker] Use range loops for multimap access.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242620 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRangify for loops in GlobalDCE, NFC.
Yaron Keren [Sat, 18 Jul 2015 19:57:34 +0000 (19:57 +0000)]
Rangify for loops in GlobalDCE, NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242619 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Use composition instead of inheritance from STL types
Benjamin Kramer [Sat, 18 Jul 2015 17:43:23 +0000 (17:43 +0000)]
[Hexagon] Use composition instead of inheritance from STL types

The standard containers are not designed to be inherited from, as
illustrated by the MSVC hacks for NodeOrdering. No functional change

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242616 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Added additional fp/int tests.
Simon Pilgrim [Sat, 18 Jul 2015 17:05:39 +0000 (17:05 +0000)]
[X86][SSE] Added additional fp/int tests.

Demonstrates some shortfalls in subvector(cvt(x)) compared to cvt(subvector(x)) patterns - especially on AVX/AVX2 targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242614 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRefreshed tests.
Simon Pilgrim [Sat, 18 Jul 2015 16:53:51 +0000 (16:53 +0000)]
Refreshed tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242613 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRefreshed tests and reordered in descending integer size.
Simon Pilgrim [Sat, 18 Jul 2015 16:14:56 +0000 (16:14 +0000)]
Refreshed tests and reordered in descending integer size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242610 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTidyup shufflevector calls - don't repeat inputs if you can avoid it.
Simon Pilgrim [Sat, 18 Jul 2015 15:56:33 +0000 (15:56 +0000)]
Tidyup shufflevector calls - don't repeat inputs if you can avoid it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242609 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PM/AA] Remove the addEscapingUse update API that won't be easy to
Chandler Carruth [Sat, 18 Jul 2015 03:26:46 +0000 (03:26 +0000)]
[PM/AA] Remove the addEscapingUse update API that won't be easy to
directly model in the new PM.

This also was an incredibly brittle and expensive update API that was
never fully utilized by all the passes that claimed to preserve AA, nor
could it reasonably have been extended to all of them. Any number of
places add uses of values. If we ever wanted to reliably instrument
this, we would want a callback hook much like we have with ValueHandles,
but doing this for every use addition seems *extremely* expensive in
terms of compile time.

The only user of this update mechanism is GlobalsModRef. The idea of
using this to keep it up to date doesn't really work anyways as its
analysis requires a symmetric analysis of two different memory
locations. It would be very hard to make updates be sufficiently
rigorous to *guarantee* symmetric analysis in this way, and it pretty
certainly isn't true today.

However, folks have been using GMR with this update for a long time and
seem to not be hitting the issues. The reported issue that the update
hook fixes isn't even a problem any more as other changes to
GetUnderlyingObject worked around it, and that issue stemmed from *many*
years ago. As a consequence, a prior patch provided a flag to control
the unsafe behavior of GMR, and this patch removes the update mechanism
that has questionable compile-time tradeoffs and is causing problems
with moving to the new pass manager. Note the lack of test updates --
not one test in tree actually requires this update, even for a contrived

All of this was extensively discussed on the dev list, this patch will
just enact what that discussion decides on. I'm sending it for review in
part to show what I'm planning, and in part to show the *amazing* amount
of work this avoids. Every call to the AA here is something like three
to six indirect function calls, which in the non-LTO pipeline never do
any work! =[

Differential Revision: http://reviews.llvm.org/D11214

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242605 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[libFuzzer] require the files and directories passed to the fuzzer to exist
Kostya Serebryany [Sat, 18 Jul 2015 00:03:37 +0000 (00:03 +0000)]
[libFuzzer] require the files and directories passed to the fuzzer to exist

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242596 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[asan] Fix shadow mapping on Android/AArch64.
Evgeniy Stepanov [Fri, 17 Jul 2015 23:51:18 +0000 (23:51 +0000)]
[asan] Fix shadow mapping on Android/AArch64.

Instrumentation and the runtime library were in disagreement about
ASan shadow offset on Android/AArch64.

This fixes a large number of existing tests on Android/AArch64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242595 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoARM: Enable MachineScheduler and disable PostRAScheduler for swift.
Matthias Braun [Fri, 17 Jul 2015 23:18:30 +0000 (23:18 +0000)]
ARM: Enable MachineScheduler and disable PostRAScheduler for swift.

Reapply r242500 now that the swift schedmodel includes LDRLIT.

This is mostly done to disable the PostRAScheduler which optimizes for
instruction latencies which isn't a good fit for out-of-order
architectures. This also allows to leave out the itinerary table in
swift in favor of the SchedModel ones.

This change leads to performance improvements/regressions by as much as
10% in some benchmarks, in fact we loose 0.4% performance over the
llvm-testsuite for reasons that appear to be unknown or out of the
compilers control. rdar://20803802 documents the investigation of
these effects.

While it is probably a good idea to perform the same switch for the
other ARM out-of-order CPUs, I limited this change to swift as I cannot
perform the benchmark verification on the other CPUs.

Differential Revision: http://reviews.llvm.org/D10513

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242588 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoARM: Add scheduling information for LDRLIT instructions to swift scheduling model
Matthias Braun [Fri, 17 Jul 2015 23:18:26 +0000 (23:18 +0000)]
ARM: Add scheduling information for LDRLIT instructions to swift scheduling model

These pseudo instructions are only lowered after register allocation and
are therefore still present when the machine scheduler runs.
Add a run: line to a testcase that uses the uncommon flags necessary to
actually produce a LDRLIT instruction on swift.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242587 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[RAGreedy] Add an experimental deferred spilling feature.
Quentin Colombet [Fri, 17 Jul 2015 23:04:06 +0000 (23:04 +0000)]
[RAGreedy] Add an experimental deferred spilling feature.

The idea of deferred spilling is to delay the insertion of spill code until the
very end of the allocation. A "candidate" to spill variable might not required
to be spilled because of other evictions that happened after this decision was
taken. The spirit is similar to the optimistic coloring strategy implemented in
Preston and Briggs graph coloring algorithm.

For now, this feature is highly experimental. Although correct, it would require
much more modification to properly model the effect of spilling.

Anyway, this early patch helps prototyping this feature.

Note: The test case cannot unfortunately be reduced and is probably fragile.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242585 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMIR Parser: Allow the dollar characters in all of the identifier tokens.
Alex Lorenz [Fri, 17 Jul 2015 22:48:04 +0000 (22:48 +0000)]
MIR Parser: Allow the dollar characters in all of the identifier tokens.

This commit modifies the machine instruction lexer so that it now accepts the
'$' characters in identifier tokens.

This change makes the syntax for unquoted global value tokens consistent with
the syntax for the global idenfitier tokens in the LLVM's assembly language.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242584 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAsmParser: Add a function to parse a standalone constant value.
Alex Lorenz [Fri, 17 Jul 2015 22:07:03 +0000 (22:07 +0000)]
AsmParser: Add a function to parse a standalone constant value.

This commit extends the interface provided by the AsmParser library by adding a
function that allows the user to parse a standalone contant value.

This change is useful for MIR serialization, as it will allow the MIR Parser to
parse the constant values in a machine constant pool.

Reviewers: Duncan P. N. Exon Smith

Differential Revision: http://reviews.llvm.org/D10280

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242579 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[asan] Add a comment explaining why non-instrumented allocas are moved.
Kuba Brecka [Fri, 17 Jul 2015 19:20:21 +0000 (19:20 +0000)]
[asan] Add a comment explaining why non-instrumented allocas are moved.

Addition to r242510.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242561 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMergeFuncs: Transfer the function parameter attributes to the call site
Arnold Schwaighofer [Fri, 17 Jul 2015 18:59:08 +0000 (18:59 +0000)]
MergeFuncs: Transfer the function parameter attributes to the call site


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242558 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoStart adding documentation for llvm-lib.
Rafael Espindola [Fri, 17 Jul 2015 18:49:26 +0000 (18:49 +0000)]
Start adding documentation for llvm-lib.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242557 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "ARM: Enable MachineScheduler and disable PostRAScheduler for swift."
Adam Nemet [Fri, 17 Jul 2015 18:14:19 +0000 (18:14 +0000)]
Revert "ARM: Enable MachineScheduler and disable PostRAScheduler for swift."

This reverts commit r242500.

It broke some internal tests and Matthias asked me to revert it while he
is investigating.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242553 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse llvm_unreachable() instead of report_fatal_error() if the machine model is incomplete
Matthias Braun [Fri, 17 Jul 2015 17:50:11 +0000 (17:50 +0000)]
Use llvm_unreachable() instead of report_fatal_error() if the machine model is incomplete

This error is for developers only so it makes sense to abort and get a

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242551 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[OCaml] Do not use -warn-error in tests.
Peter Zotov [Fri, 17 Jul 2015 17:33:23 +0000 (17:33 +0000)]
[OCaml] Do not use -warn-error in tests.

This -warn-error flag invariably gets into release tarballs
and breaks builds on distributions that run tests as a part
of release process. The OCaml binding tests are especially
critical, since they often expose lingering toolchain bugs,
and so it is replaced with -w +A (equivalent to -Wall).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242550 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Use [SU]ABSDIFF nodes instead of intrinsics for VABD/VABA
James Molloy [Fri, 17 Jul 2015 17:10:55 +0000 (17:10 +0000)]
[ARM] Use [SU]ABSDIFF nodes instead of intrinsics for VABD/VABA

No functional change, but it preps codegen for the future when SABSDIFF
will start getting generated in anger.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242546 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] Use [SU]ABSDIFF nodes instead of intrinsics for ABD/ABA
James Molloy [Fri, 17 Jul 2015 17:10:45 +0000 (17:10 +0000)]
[AArch64] Use [SU]ABSDIFF nodes instead of intrinsics for ABD/ABA

No functional change, but it preps codegen for the future when SABSDIFF
will start getting generated in anger.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242545 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd libunwind to the release scripts
Hans Wennborg [Fri, 17 Jul 2015 16:49:59 +0000 (16:49 +0000)]
Add libunwind to the release scripts

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242543 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse inbounds GEPs for memcpy and memset lowering
Eli Bendersky [Fri, 17 Jul 2015 16:42:33 +0000 (16:42 +0000)]
Use inbounds GEPs for memcpy and memset lowering

Follow-up on discussion in http://reviews.llvm.org/D11220

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242542 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd support for producing thin archives in llvm-lib.
Rafael Espindola [Fri, 17 Jul 2015 16:01:11 +0000 (16:01 +0000)]
Add support for producing thin archives in llvm-lib.

I will send an entry in docs/CommandGuide for review today.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242533 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoEdited the CPUNames table of TargetParser
Alexandros Lamprineas [Fri, 17 Jul 2015 15:49:32 +0000 (15:49 +0000)]
Edited the CPUNames table of TargetParser
- Changed the default FPU of cortex-m4.
- Removed "cortex-m4f" entry. Currently not supported.

Change-Id: I73121e358aa9e7ba68eb001c2143df390ff2352a
Phabricator: http://reviews.llvm.org/D11100

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242528 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMake global aliases have symbol size equal to their type
John Brawn [Fri, 17 Jul 2015 12:12:03 +0000 (12:12 +0000)]
Make global aliases have symbol size equal to their type

This is mainly for the benefit of GlobalMerge, so that an alias into a
MergedGlobals variable has the same size as the original non-merged

Differential Revision: http://reviews.llvm.org/D10837

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242520 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agotest-release.sh: Add ability to do a test build using the trunk or branches.
Daniel Sanders [Fri, 17 Jul 2015 10:40:40 +0000 (10:40 +0000)]
test-release.sh: Add ability to do a test build using the trunk or branches.

Adds '--svn-path BRANCH' that causes the script to export the specified path
from each project. Otherwise the tag specified by -release, -rc, etc. will be
used. The version portion of the package name will be 'test-$path' (any forward
slashes in the branch name are replaced with underscores), for example:
  -svn-path trunk => clang+llvm-test-trunk-mips-linux-gnu.tar.xz
  -svn-path branches/release_35 => clang+llvm-test-branches_release_35-mips-linux-gnu.tar.xz

This is primarily useful for bringing new release packages up to standard
without needing to create and maintain a tag for the purpose.

Reviewers: tstellarAMD, hans

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6563

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242518 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PM/AA] Disable the core unsafe aspect of GlobalsModRef in the face of
Chandler Carruth [Fri, 17 Jul 2015 06:58:24 +0000 (06:58 +0000)]
[PM/AA] Disable the core unsafe aspect of GlobalsModRef in the face of
basic changes to the IR such as folding pointers through PHIs, Selects,
integer casts, store/load pairs, or outlining.

This leaves the feature available behind a flag. This flag's default
could be flipped if necessary, but the real-world performance impact of
this particular feature of GMR may not be sufficiently significant for
many folks to want to run the risk.

Currently, the risk here is somewhat mitigated by half-hearted attempts
to update GlobalsModRef when the rest of the optimizer changes
something. However, I am currently trying to remove that update
mechanism as it makes migrating the AA infrastructure to a form that can
be readily shared between new and old pass managers very challenging.
Without this update mechanism, it is possible that this still unlikely
failure mode will start to trip people, and so I wanted to try to
proactively avoid that.

There is a lengthy discussion on the mailing list about why the core
approach here is flawed, and likely would need to look totally different
to be both reasonably effective and resilient to basic IR changes
occuring. This patch is essentially the first of two which will enact
the result of that discussion. The next patch will remove the current
update mechanism.

Thanks to lots of folks that helped look at this from different angles.
Especial thanks to Michael Zolotukhin for doing some very prelimanary
benchmarking of LTO without GlobalsModRef to get a rough idea of the
impact we could be facing here. So far, it looks very small, but there
are some concerns lingering from other benchmarking. The default here
may get flipped if performance results end up pointing at this as a more
significant issue.

Also thanks to Pete and Gerolf for reviewing!

Differential Revision: http://reviews.llvm.org/D11213

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242512 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[OCaml] Use a nicer style for documentation than OCaml default.
Peter Zotov [Fri, 17 Jul 2015 06:37:59 +0000 (06:37 +0000)]
[OCaml] Use a nicer style for documentation than OCaml default.

In particular, it's much easier to read, as it doesn't expand all
the way on wide-screen displays.

CSS committed under LLVM license with explicit permission from
Daniel B├╝nzli <daniel.buenzli@erratique.ch>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242511 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[asan] Fix invalid debug info for promotable allocas
Kuba Brecka [Fri, 17 Jul 2015 06:29:57 +0000 (06:29 +0000)]
[asan] Fix invalid debug info for promotable allocas

Since r230724 ("Skip promotable allocas to improve performance at -O0"), there is a regression in the generated debug info for those non-instrumented variables. When inspecting such a variable's value in LLDB, you often get garbage instead of the actual value. ASan instrumentation is inserted before the creation of the non-instrumented alloca. The only allocas that are considered standard stack variables are the ones declared in the first basic-block, but the initial instrumentation setup in the function breaks that invariant.

This patch makes sure uninstrumented allocas stay in the first BB.

Differential Revision: http://reviews.llvm.org/D11179

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242510 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-cxxdump] Don't rely on global state
Davide Italiano [Fri, 17 Jul 2015 06:18:36 +0000 (06:18 +0000)]
[llvm-cxxdump] Don't rely on global state

Differential Revision: http://reviews.llvm.org/D11227

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242509 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAArch64: add comment missed out from earlier patch.
Tim Northover [Fri, 17 Jul 2015 03:31:50 +0000 (03:31 +0000)]
AArch64: add comment missed out from earlier patch.

Helps explain some of the background behind this bit of code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242503 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoARM: Enable MachineScheduler and disable PostRAScheduler for swift.
Matthias Braun [Fri, 17 Jul 2015 01:44:31 +0000 (01:44 +0000)]
ARM: Enable MachineScheduler and disable PostRAScheduler for swift.

This is mostly done to disable the PostRAScheduler which optimizes for
instruction latencies which isn't a good fit for out-of-order
architectures. This also allows to leave out the itinerary table in
swift in favor of the SchedModel ones.

This change leads to performance improvements/regressions by as much as
10% in some benchmarks, in fact we loose 0.4% performance over the
llvm-testsuite for reasons that appear to be unknown or out of the
compilers control. rdar://20803802 documents the investigation of
these effects.

While it is probably a good idea to perform the same switch for the
other ARM out-of-order CPUs, I limited this change to swift as I cannot
perform the benchmark verification on the other CPUs.

Differential Revision: http://reviews.llvm.org/D10513

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242500 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoOnly do fmul (fadd x, x), c combine if the fadd only has one use
Matt Arsenault [Fri, 17 Jul 2015 01:14:35 +0000 (01:14 +0000)]
Only do fmul (fadd x, x), c combine if the fadd only has one use

This was increasing the instruction count if the fadd has multiple uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242498 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoUse small encodings for constants when possible.
Rafael Espindola [Fri, 17 Jul 2015 00:57:52 +0000 (00:57 +0000)]
Use small encodings for constants when possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242493 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMIR Serialization: Serialize the frame setup machine instruction flag.
Alex Lorenz [Fri, 17 Jul 2015 00:24:15 +0000 (00:24 +0000)]
MIR Serialization: Serialize the frame setup machine instruction flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242491 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMIR Serialization: Serialize the frame index machine operands.
Alex Lorenz [Thu, 16 Jul 2015 23:37:45 +0000 (23:37 +0000)]
MIR Serialization: Serialize the frame index machine operands.

Reviewers: Duncan P. N. Exon Smith

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242487 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd new constructors for LoopInfo/DominatorTree/BFI/BPI
Cong Hou [Thu, 16 Jul 2015 23:23:35 +0000 (23:23 +0000)]
Add new constructors for LoopInfo/DominatorTree/BFI/BPI

Those new constructors make it more natural to construct an object for a function. For example, previously to build a LoopInfo for a function, we need four statements:

DominatorTree DT;
LoopInfo LI;

Now we only need one statement:

LoopInfo LI(DominatorTree(F));


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242486 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoArm: Don't define a label twice with two setjmps in a function.
Matthias Braun [Thu, 16 Jul 2015 22:34:20 +0000 (22:34 +0000)]
Arm: Don't define a label twice with two setjmps in a function.

Constructing a name based on the function name didn't give us a unique
symbol if we had more than one setjmp in a function. Using
MCContext::createTempSymbol() always gives us a unique name.

Differential Revision: http://reviews.llvm.org/D9314

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242482 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix __builtin_setjmp in combination with sjlj exception handling.
Matthias Braun [Thu, 16 Jul 2015 22:34:16 +0000 (22:34 +0000)]
Fix __builtin_setjmp in combination with sjlj exception handling.

llvm.eh.sjlj.setjmp was used as part of the SjLj exception handling
style but is also used in clang to implement __builtin_setjmp.  The ARM
backend needs to output additional dispatch tables for the SjLj
exception handling style, these tables however can't be emitted if
llvm.eh.sjlj.setjmp is simply used for __builtin_setjmp and no actual
landing pad blocks exist.

To solve this issue a new llvm.eh.sjlj.setup_dispatch intrinsic is
introduced which is used instead of llvm.eh.sjlj.setjmp in the SjLj
exception handling lowering, so we can differentiate between the case
where we actually need to setup a dispatch table and the case where we
just need the __builtin_setjmp semantic.

Differential Revision: http://reviews.llvm.org/D9313

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242481 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix ffiInvoke() use of DataLayout, broken in 242414
Mehdi Amini [Thu, 16 Jul 2015 22:23:09 +0000 (22:23 +0000)]
Fix ffiInvoke() use of DataLayout, broken in 242414

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242456 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SCEV][NFC] Use triple-slash (///) for comment.
Sanjoy Das [Thu, 16 Jul 2015 22:08:37 +0000 (22:08 +0000)]
[SCEV][NFC] Use triple-slash (///) for comment.

Makes the comments for proveNoWrapByVaryingStart consistent with the
rest of ScalarEvolution.h

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242451 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix spelling. NFCI.
Simon Pilgrim [Thu, 16 Jul 2015 21:44:53 +0000 (21:44 +0000)]
Fix spelling. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242448 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAArch64: make inexact signalling on round Darwin-specific
Tim Northover [Thu, 16 Jul 2015 21:30:21 +0000 (21:30 +0000)]
AArch64: make inexact signalling on round Darwin-specific

C11 leaves the choice on whether round-to-integer operations set the inexact
flag implementation-defined. Darwin does expect it to be set, but this seems to
be against the intent of the IEEE document and slower to implement anyway. So
it should be opt-in.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242446 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Added nounwind attribute to vector shift tests.
Simon Pilgrim [Thu, 16 Jul 2015 21:14:26 +0000 (21:14 +0000)]
[X86][SSE] Added nounwind attribute to vector shift tests.

Stop i686 codegen from generating cfi directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242443 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PowerPC] v4i32 is a VSRCRegClass
Bill Schmidt [Thu, 16 Jul 2015 21:14:07 +0000 (21:14 +0000)]
[PowerPC] v4i32 is a VSRCRegClass

I was looking at some vector code generation and kept seeing
unnecessary vector copies into the Altivec half of the VSX registers.
I discovered that we overlooked v4i32 when adding the register classes
for VSX; we only added v4f32 and v2f64.  This means that anything that
canonicalizes into v4i32 (which is a LOT of stuff) ends up being
forced into VRRC on its way to VSRC.

The fix is one line.  The rest of the patch is fixing up some test
cases whose code generation has changed as a result.

This seems like it would be a good candidate for backport to 3.7.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242442 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoList supported architectures for StackMap section and related intrinsics
Philip Reames [Thu, 16 Jul 2015 21:10:46 +0000 (21:10 +0000)]
List supported architectures for StackMap section and related intrinsics

Not having this documented led to some confusion in a recent review thread.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242441 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Updated vector conversion test names.
Simon Pilgrim [Thu, 16 Jul 2015 21:00:57 +0000 (21:00 +0000)]
[X86][SSE] Updated vector conversion test names.

I'll be adding further tests shortly so need a more thorough naming convention.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242440 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoStreamline the coding style in NVPTXLowerAggrCopies
Eli Bendersky [Thu, 16 Jul 2015 20:42:38 +0000 (20:42 +0000)]
Streamline the coding style in NVPTXLowerAggrCopies

Make the style consistent with LLVM style throughout and clang-format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242439 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoMachineInstr: Explain the subtle semantics of uses()/defs()
Matthias Braun [Thu, 16 Jul 2015 20:27:01 +0000 (20:27 +0000)]
MachineInstr: Explain the subtle semantics of uses()/defs()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242438 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[NVPTX] enable SpeculativeExecution in NVPTX
Jingyue Wu [Thu, 16 Jul 2015 20:13:48 +0000 (20:13 +0000)]
[NVPTX] enable SpeculativeExecution in NVPTX

SpeculativeExecution enables a series straight line optimizations (such
as SLSR and NaryReassociate) on conditional code. For example,

  if (...)
    ... b * s ...
  if (...)
    ... (b + 1) * s ...

speculative execution can hoist b * s and (b + 1) * s from then-blocks,
so that we have

  ... b * s ...
  if (...)
  ... (b + 1) * s ...
  if (...)

Then, SLSR can rewrite (b + 1) * s to (b * s + s) because after
speculative execution b * s dominates (b + 1) * s.

The performance impact of this change is significant. It speeds up the
benchmarks running EigenFloatContractionKernelInternal16x16
by roughly 2%. Some internal benchmarks that have the above code pattern
are improved by up to 40%. No significant slowdowns are observed on
Eigen CUDA microbenchmarks.

Reviewers: jholewinski, broune, eliben

Subscribers: llvm-commits, jholewinski

Differential Revision: http://reviews.llvm.org/D11201

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242437 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAArch64: Implement conditional compare sequence matching.
Matthias Braun [Thu, 16 Jul 2015 20:02:37 +0000 (20:02 +0000)]
AArch64: Implement conditional compare sequence matching.

This is a new iteration of the reverted r238793 /
http://reviews.llvm.org/D8232 which wrongly assumed that any and/or
trees can be represented by conditional compare sequences, however there
are some restrictions to that. This version fixes this and adds comments
that explain exactly what types of and/or trees can actually be
implemented as conditional compare sequences.

Related to http://llvm.org/PR20927, rdar://18326194

Differential Revision: http://reviews.llvm.org/D10579

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242436 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDPGU/SI: Negative offsets aren't allowed in MUBUF's vaddr operand
Tom Stellard [Thu, 16 Jul 2015 19:40:09 +0000 (19:40 +0000)]
AMDPGU/SI: Negative offsets aren't allowed in MUBUF's vaddr operand

Reviewers: arsenm

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11226

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242434 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAMDPGU/SI: Use AssertZext node to mask high bit for scratch offsets
Tom Stellard [Thu, 16 Jul 2015 19:40:07 +0000 (19:40 +0000)]
AMDPGU/SI: Use AssertZext node to mask high bit for scratch offsets

We can safely assume that the high bit of scratch offsets will never
be set, because this would require at least 128 GB of GPU memory.

Reviewers: arsenm

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11225

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242433 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoLiveInterval: Document and enforce rules about empty subranges.
Matthias Braun [Thu, 16 Jul 2015 18:55:35 +0000 (18:55 +0000)]
LiveInterval: Document and enforce rules about empty subranges.

Empty subranges are not allowed in a LiveInterval and must be removed
instead: Check this in the verifiers, put a reminder for this in the
comment of the shrinkToUses variant for a single lane and make it
automatic for the shrinkToUses variant for a LiveInterval.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242431 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDo not duplicate method name in comment, remove duplicate comment
Matthias Braun [Thu, 16 Jul 2015 18:55:32 +0000 (18:55 +0000)]
Do not duplicate method name in comment, remove duplicate comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242430 91177308-0d34-0410-b5e6-96231b3b80d8