oota-llvm.git
9 years agoAVX512 : Implemented VPMADDUBSW and VPMADDWD instruction ,
Igor Breger [Tue, 21 Jul 2015 07:11:28 +0000 (07:11 +0000)]
AVX512 : Implemented VPMADDUBSW and VPMADDWD instruction ,
Added tests for intrinsics and encoding.

Differential Revision: http://reviews.llvm.org/D11351

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242761 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[LIT] Fix discovery.py test once again
Eric Fiselier [Tue, 21 Jul 2015 04:25:13 +0000 (04:25 +0000)]
[LIT] Fix discovery.py test once again

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242758 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ARM] Define subtarget feature "reserve-r9", which is used to decide
Akira Hatanaka [Tue, 21 Jul 2015 01:42:02 +0000 (01:42 +0000)]
[ARM] Define subtarget feature "reserve-r9", which is used to decide
whether register r9 should be reserved.

This recommits r242737, which broke bots because the number of subtarget
features went over the limit of 64.

This change is needed because we cannot use a backend option to set
cl::opt "arm-reserve-r9" when doing LTO.

Out-of-tree projects currently using cl::opt option "-arm-reserve-r9" to
reserve r9 should make changes to add subtarget feature "reserve-r9" to
the IR.

rdar://problem/21529937

Differential Revision: http://reviews.llvm.org/D11320

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242756 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoBump the size of FeatureBitset up to 96-bits.
Akira Hatanaka [Tue, 21 Jul 2015 01:39:22 +0000 (01:39 +0000)]
Bump the size of FeatureBitset up to 96-bits.

This should avoid exceeding the maximum size when I add another subtarget
feature to ARM's subtarget.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242754 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDon't do a walk over the dynamic table just to find DT_SONAME.
Rafael Espindola [Tue, 21 Jul 2015 01:01:29 +0000 (01:01 +0000)]
Don't do a walk over the dynamic table just to find DT_SONAME.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242752 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[RewriteStatepointsForGC] Minor code cleanup [NFC]
Philip Reames [Tue, 21 Jul 2015 00:49:55 +0000 (00:49 +0000)]
[RewriteStatepointsForGC] Minor code cleanup [NFC]

We can use builders to simplify part of the code and we only check for the existance of the metadata value; this enables us to delete some redundant code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242751 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[cmake] pass GO_EXECUTABLE to llgo-go
Andrew Wilkins [Tue, 21 Jul 2015 00:46:23 +0000 (00:46 +0000)]
[cmake] pass GO_EXECUTABLE to llgo-go

Summary:
When calling llgo-go from the llvm_add_go_executable
cmake function, specify $GO_EXECUTABLE as the go
command to call. Without this, llgo-go searches $PATH
which may be inconsistent with $GO_EXECUTABLE.

Reviewers: pcc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11290

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242749 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] Fixing inconsistency caused by copy-pasta.
Chris Bieneman [Tue, 21 Jul 2015 00:44:47 +0000 (00:44 +0000)]
[CMake] Fixing inconsistency caused by copy-pasta.

This will actually fix the PR 24194.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242748 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAMDGPU: Set isMoveImm on s_movk_i32
Matt Arsenault [Tue, 21 Jul 2015 00:40:08 +0000 (00:40 +0000)]
AMDGPU: Set isMoveImm on s_movk_i32

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242747 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[CMake] Fixing a problem with external projects that aren't getting enabled properly.
Chris Bieneman [Tue, 21 Jul 2015 00:39:53 +0000 (00:39 +0000)]
[CMake] Fixing a problem with external projects that aren't getting enabled properly.

This should address PR 24194, and some builedbot failures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242746 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoARMLoadStoreOpt: Merge subs/adds into LDRD/STRD; Factor out common code
Matthias Braun [Tue, 21 Jul 2015 00:19:01 +0000 (00:19 +0000)]
ARMLoadStoreOpt: Merge subs/adds into LDRD/STRD; Factor out common code

Re-apply of r241928 which had to be reverted because of the r241926
revert.

This commit factors out common code from MergeBaseUpdateLoadStore() and
MergeBaseUpdateLSMultiple() and introduces a new function
MergeBaseUpdateLSDouble() which merges adds/subs preceding/following a
strd/ldrd instruction into an strd/ldrd instruction with writeback where
possible.

Differential Revision: http://reviews.llvm.org/D10676

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242743 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoARMLoadStoreOptimizer: Create LDRD/STRD on thumb2
Matthias Braun [Tue, 21 Jul 2015 00:18:59 +0000 (00:18 +0000)]
ARMLoadStoreOptimizer: Create LDRD/STRD on thumb2

Re-apply r241926 with an additional check that r13 and r15 are not used
for LDRD/STRD. See http://llvm.org/PR24190. This also already includes
the fix from r241951.

Differential Revision: http://reviews.llvm.org/D10623

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242742 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert r242737.
Akira Hatanaka [Mon, 20 Jul 2015 23:51:12 +0000 (23:51 +0000)]
Revert r242737.

This caused builds to fail with the following error message:

error:Too many subtarget features! Bump MAX_SUBTARGET_FEATURES.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242740 91177308-0d34-0410-b5e6-96231b3b80d8

9 years ago[ARM] Define subtarget feature "reserve-r9", which is used to decide
Akira Hatanaka [Mon, 20 Jul 2015 23:21:30 +0000 (23:21 +0000)]
[ARM] Define subtarget feature "reserve-r9", which is used to decide
whether register r9 should be reserved.

This change is needed because we cannot use a backend option to set
cl::opt "arm-reserve-r9" when doing LTO.

Out-of-tree projects currently using cl::opt option "-arm-reserve-r9" to
reserve r9 should make changes to add subtarget feature "reserve-r9" to
the IR.

rdar://problem/21529937

Differential Revision: http://reviews.llvm.org/D11320

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242737 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert "ARMLoadStoreOptimizer: Create LDRD/STRD on thumb2"
Matthias Braun [Mon, 20 Jul 2015 23:17:20 +0000 (23:17 +0000)]
Revert "ARMLoadStoreOptimizer: Create LDRD/STRD on thumb2"

This reverts commit r241926. This caused http://llvm.org/PR24190

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242735 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert "ARMLoadStoreOpt: Merge subs/adds into LDRD/STRD; Factor out common code"
Matthias Braun [Mon, 20 Jul 2015 23:17:16 +0000 (23:17 +0000)]
Revert "ARMLoadStoreOpt: Merge subs/adds into LDRD/STRD; Factor out common code"

This reverts commit r241928. This caused http://llvm.org/PR24190

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242734 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRevert "ARM: Use SpecificBumpPtrAllocator to fix leak introduced in r241920"
Matthias Braun [Mon, 20 Jul 2015 23:17:14 +0000 (23:17 +0000)]
Revert "ARM: Use SpecificBumpPtrAllocator to fix leak introduced in r241920"

This reverts commit r241951. It caused http://llvm.org/PR24190

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242733 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAArch64: Restrict macroop fusion heuristics to cyclone.
Matthias Braun [Mon, 20 Jul 2015 23:11:42 +0000 (23:11 +0000)]
AArch64: Restrict macroop fusion heuristics to cyclone.

Even though this is just some hinting for the scheduler it doesn't make
sense to do that unless you know the target can perform the fusion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242732 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoTargets: commonize some stack realignment code
JF Bastien [Mon, 20 Jul 2015 22:51:32 +0000 (22:51 +0000)]
Targets: commonize some stack realignment code

This patch does the following:
* Fix FIXME on `needsStackRealignment`: it is now shared between multiple targets, implemented in `TargetRegisterInfo`, and isn't `virtual` anymore. This will break out-of-tree targets, silently if they used `virtual` and with a build error if they used `override`.
* Factor out `canRealignStack` as a `virtual` function on `TargetRegisterInfo`, by default only looks for the `no-realign-stack` function attribute.

Multiple targets duplicated the same `needsStackRealignment` code:
 - Aarch64.
 - ARM.
 - Mips almost: had extra `DEBUG` diagnostic, which the default implementation now has.
 - PowerPC.
 - WebAssembly.
 - x86 almost: has an extra `-force-align-stack` option, which the default implementation now has.

The default implementation of `needsStackRealignment` used to just return `false`. My current patch changes the behavior by simply using the above shared behavior. This affects:
 - AMDGPU
 - BPF
 - CppBackend
 - MSP430
 - NVPTX
 - Sparc
 - SystemZ
 - XCore
 - Out-of-tree targets
This is a breaking change! `make check` passes.

The only implementation of the `virtual` function (besides the slight different in x86) was Hexagon (which did `MF.getFrameInfo()->getMaxAlignment() > 8`), and potentially some out-of-tree targets. Hexagon now uses the default implementation.

`needsStackRealignment` was being overwritten in `<Target>GenRegisterInfo.inc`, to return `false` as the default also did. That was odd and is now gone.

Reviewers: sunfish

Subscribers: aemerson, llvm-commits, jfb

Differential Revision: http://reviews.llvm.org/D11160

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242727 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoDon't try to instrument allocas used by outlined SEH funclets
Reid Kleckner [Mon, 20 Jul 2015 22:49:44 +0000 (22:49 +0000)]
Don't try to instrument allocas used by outlined SEH funclets

Summary:
Arguments to llvm.localescape must be static allocas. They must be at
some statically known offset from the frame or stack pointer so that
other functions can access them with localrecover.

If we ever want to instrument these, we can use more indirection to
recover the addresses of these local variables. We can do it during
clang irgen or with the asan module pass.

Reviewers: eugenis

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11307

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242726 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoRemove duplicated code.
Rafael Espindola [Mon, 20 Jul 2015 22:41:44 +0000 (22:41 +0000)]
Remove duplicated code.

Both ELFObjectFile and ELFFile had an implementation of getLoadName.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242725 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoAArch64: Add aditional Cyclone macroop fusion opportunities
Matthias Braun [Mon, 20 Jul 2015 22:34:47 +0000 (22:34 +0000)]
AArch64: Add aditional Cyclone macroop fusion opportunities

Related to rdar://19205407

Differential Revision: http://reviews.llvm.org/D10746

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242724 91177308-0d34-0410-b5e6-96231b3b80d8

9 years agoMachineScheduler: Restrict macroop fusion to data-dependent instructions.
Matthias Braun [Mon, 20 Jul 2015 22:34:44 +0000 (22:34 +0000)]
MachineScheduler: Restrict macroop fusion to data-dependent instructions.

Before creating a schedule edge to encourage MacroOpFusion check that:
- The predecessor actually writes a register that the branch reads.
- The predecessor has no successors in the ScheduleDAG so we can
  schedule it in front of the branch.

This avoids skewing the scheduling heuristic in cases where macroop
fusion cannot happen.

Differential Revision: http://reviews.llvm.org/D10745

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242723 91177308-0d34-0410-b5e6-96231b3b80d8

9 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

9 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

9 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
http://reviews.llvm.org/D11372

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

9 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

9 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

9 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
    cases.)
  * 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

9 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

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

Summary:
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

9 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

9 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

9 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

9 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

9 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

9 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

9 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.

Summary:
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

9 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

9 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

9 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:
  RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:opt=1 ...

[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

9 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

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

Summary:

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

9 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

9 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

9 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
headers.

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

9 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

Summary:
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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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
intended.

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

9 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

9 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

9 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

9 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

9 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
case.

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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

rdar://21516488

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

9 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

9 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

9 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
backtrace.

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

9 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

9 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

9 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

9 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

9 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

9 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

9 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

9 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
variable.

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

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

9 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.

Summary:
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

9 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

9 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 Bünzli <daniel.buenzli@erratique.ch>.

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

9 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

9 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

9 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

9 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