platform/upstream/llvm.git
8 years ago[llvm-cov] Speculate fix for a Windows-only test (NFC)
Vedant Kumar [Fri, 9 Sep 2016 01:32:47 +0000 (01:32 +0000)]
[llvm-cov] Speculate fix for a Windows-only test (NFC)

This test should have broken after r280896. Fix up the test case
speculatively, since I don't have a way to test it.

I wonder why I didn't get any angry bot emails about this. Maybe none of
the win32 bots test llvm-cov? That could explain it, since the test says
it 'REQUIRES: system-windows', which is restricted to win32 hosts.

Also: why is 'system-windows' not defined for non-win32 Windows bots?
llvm-svn: 281008

8 years ago[libFuzzer] remove use_traces=1 since use_value_profile seems to be strictly better
Kostya Serebryany [Fri, 9 Sep 2016 01:17:03 +0000 (01:17 +0000)]
[libFuzzer] remove use_traces=1 since use_value_profile seems to be strictly better

llvm-svn: 281007

8 years ago[X86] Tighten up a comment which confused x64 ABI terminology.
David Majnemer [Fri, 9 Sep 2016 01:07:01 +0000 (01:07 +0000)]
[X86] Tighten up a comment which confused x64 ABI terminology.

The x64 ABI has two major function types:
 - frame functions
 - leaf functions

A frame function is one which requires a stack frame.  A leaf function
is one which does not.  A frame function may or may not have a frame
pointer.

A leaf function does not require a stack frame and may never modify SP
except via a return (RET, tail call via JMP).

A frame function which has a frame pointer is permitted to use the LEA
instruction in the epilogue, a frame function without which doesn't
establish a frame pointer must use ADD to adjust the stack pointer epilogue.

Fun fact: Leaf functions don't require a function table entry
(associated PDATA/XDATA).

llvm-svn: 281006

8 years ago[X86] Add more baseline tests for "irregular" shuffles. NFC.
Michael Kuperstein [Fri, 9 Sep 2016 00:49:29 +0000 (00:49 +0000)]
[X86] Add more baseline tests for "irregular" shuffles. NFC.

This adds more tests for shuffles where the output width does not match
the input width and/or the output is generated from more than two inputs.

llvm-svn: 281005

8 years agoFix -output option.
Rui Ueyama [Fri, 9 Sep 2016 00:25:56 +0000 (00:25 +0000)]
Fix -output option.

Usually, options that are longer than one character can be preceded
either by "-" or "--", but options starting with "o" are exceptions
because they conflict with "-o" option. They have to be preceded by
"--".

llvm-svn: 281004

8 years agoWin64: Don't use REX prefix for direct tail calls
Hans Wennborg [Thu, 8 Sep 2016 23:35:10 +0000 (23:35 +0000)]
Win64: Don't use REX prefix for direct tail calls

The REX prefix should be used on indirect jmps, but not direct ones.
For direct jumps, the unwinder looks at the offset to determine if
it's inside the current function.

Differential Revision: https://reviews.llvm.org/D24359

llvm-svn: 281003

8 years ago.clang-tidy: parameters and members should be CamelCased.
Mike Aizatsky [Thu, 8 Sep 2016 23:29:37 +0000 (23:29 +0000)]
.clang-tidy: parameters and members should be CamelCased.

Summary: Not sure why is it missing.

Differential Revision: https://reviews.llvm.org/D24364

llvm-svn: 281002

8 years agoFix bug in -nostdlib.
Rui Ueyama [Thu, 8 Sep 2016 23:26:54 +0000 (23:26 +0000)]
Fix bug in -nostdlib.

We still have to skip a token inside SEARCH_DIR() when -nostdlib is
specified. Previuosly, we didn't skip it, so it caused a parse error.

llvm-svn: 281001

8 years agollvm-objdump: add missing ) in help output, NFC
Saleem Abdulrasool [Thu, 8 Sep 2016 23:17:34 +0000 (23:17 +0000)]
llvm-objdump: add missing ) in help output, NFC

Add a missing ')' in the help output.  NFC.

llvm-svn: 281000

8 years agoC++ Modules TS: Add parsing and some semantic analysis support for
Richard Smith [Thu, 8 Sep 2016 23:14:54 +0000 (23:14 +0000)]
C++ Modules TS: Add parsing and some semantic analysis support for
export-declarations. These don't yet have an effect on name visibility;
we still export everything by default.

llvm-svn: 280999

8 years ago[Driver] Report invalid -mtune/-mcpu parameters when -arch=arm64
Vedant Kumar [Thu, 8 Sep 2016 22:53:19 +0000 (22:53 +0000)]
[Driver] Report invalid -mtune/-mcpu parameters when -arch=arm64

Differential Revision: https://reviews.llvm.org/D23643

llvm-svn: 280998

8 years agoImplement MS _rot intrinsics
Albert Gutowski [Thu, 8 Sep 2016 22:32:19 +0000 (22:32 +0000)]
Implement MS _rot intrinsics

Reviewers: thakis, Prazek, compnerd, rnk

Subscribers: majnemer, cfe-commits

Differential Revision: https://reviews.llvm.org/D24311

llvm-svn: 280997

8 years ago[libFuzzer] add missing docs
Kostya Serebryany [Thu, 8 Sep 2016 22:21:13 +0000 (22:21 +0000)]
[libFuzzer] add missing docs

llvm-svn: 280996

8 years agoRemove debug info when hoisting instruction from then/else branch.
Dehao Chen [Thu, 8 Sep 2016 21:53:33 +0000 (21:53 +0000)]
Remove debug info when hoisting instruction from then/else branch.

Summary: The hoisted instruction is executed speculatively. It could affect the debugging experience as user would see gdb go into code that may not be expected to execute. It will also affect sample profile accuracy by assigning incorrect frequency to source within then/else branch.

Reviewers: davidxl, dblaikie, chandlerc, kcc, echristo

Subscribers: mehdi_amini, probinson, eric_niebler, andreadb, llvm-commits

Differential Revision: https://reviews.llvm.org/D24164

llvm-svn: 280995

8 years agoDefine writeUint and use it. NFC.
Rui Ueyama [Thu, 8 Sep 2016 21:46:21 +0000 (21:46 +0000)]
Define writeUint and use it. NFC.

llvm-svn: 280994

8 years ago[InstCombine] regenerate checks
Sanjay Patel [Thu, 8 Sep 2016 21:40:21 +0000 (21:40 +0000)]
[InstCombine] regenerate checks

llvm-svn: 280993

8 years ago[LV] Ensure proper handling of multi-use case when collecting uniforms
Matthew Simpson [Thu, 8 Sep 2016 21:38:26 +0000 (21:38 +0000)]
[LV] Ensure proper handling of multi-use case when collecting uniforms

The test case included in r280979 wasn't checking what it was supposed to be
checking for the predicated store case. Fixing the test revealed that the
multi-use case (when a pointer is used by both vectorized and scalarized memory
accesses) wasn't being handled properly. We can't skip over
non-consecutive-like pointers since they may have looked consecutive-like with
a different memory access.

llvm-svn: 280992

8 years ago[InstCombine] regenerate checks
Sanjay Patel [Thu, 8 Sep 2016 21:32:21 +0000 (21:32 +0000)]
[InstCombine] regenerate checks

llvm-svn: 280991

8 years ago[ELF] Fix DT_NEEDED value.
Davide Italiano [Thu, 8 Sep 2016 21:18:38 +0000 (21:18 +0000)]
[ELF] Fix DT_NEEDED value.

Differential Revision: https://reviews.llvm.org/D24363

llvm-svn: 280990

8 years agoELF: clarify error when we don't know the output format
Ed Maste [Thu, 8 Sep 2016 21:06:29 +0000 (21:06 +0000)]
ELF: clarify error when we don't know the output format

lld differs from GNU ld in that it does not have a built-in default
target emulation. Emulation is always specified via the -m option, or
obtained from the object file(s) being linked. In most cases at least
one ELF object is included in the link, so the emulation is known.

When using lld's (not yet committed) -b binary support with -r, to
convert a binary file into an ELF object we do not have a known
emulation. The error message previously emitted in this case
"-m or at least a .o file required" is accurate but does not offer
much insight. Add text to the error message to give a hint why -m or an
object file is required.

Differential Revision: https://reviews.llvm.org/D24348

llvm-svn: 280989

8 years agosupport: clean up MSVC support
Saleem Abdulrasool [Thu, 8 Sep 2016 20:52:48 +0000 (20:52 +0000)]
support: clean up MSVC support

Visual Studio 2013 (CRT version 12) added support for many C99 long long and
long double functions. Visual Studio 2015 (CRT version 14) increased C99 and C11
compliance further. Since we don't support Visual Studio versions older than
2013, we can considerably clean up the support header.

Patch by Shoaib Meenai!

llvm-svn: 280988

8 years ago[RDF] Further improve handling of multiple phis reached from shadows
Krzysztof Parzyszek [Thu, 8 Sep 2016 20:48:42 +0000 (20:48 +0000)]
[RDF] Further improve handling of multiple phis reached from shadows

llvm-svn: 280987

8 years agoReduce templating. NFC.
Rafael Espindola [Thu, 8 Sep 2016 20:47:52 +0000 (20:47 +0000)]
Reduce templating. NFC.

llvm-svn: 280986

8 years agoDefine '-undefined foo' as an alias to '-undefined=foo'.
Rui Ueyama [Thu, 8 Sep 2016 20:35:29 +0000 (20:35 +0000)]
Define '-undefined foo' as an alias to '-undefined=foo'.

llvm-svn: 280985

8 years ago[modules] Apply ODR merging for function scoped tags only in C++ mode.
Vassil Vassilev [Thu, 8 Sep 2016 20:34:41 +0000 (20:34 +0000)]
[modules] Apply ODR merging for function scoped tags only in C++ mode.

In C mode, if we have a visible declaration but not a visible definition, a tag
defined in the declaration should be have a visible definition. In C++ we rely
on the ODR merging, whereas in C we cannot because each declaration of a
function gets its own set of declarations in its prototype scope.

Patch developed in collaboration with Richard Smith!

llvm-svn: 280984

8 years agoELF: Report original emulation name in "unknown emulation" error
Ed Maste [Thu, 8 Sep 2016 19:36:22 +0000 (19:36 +0000)]
ELF: Report original emulation name in "unknown emulation" error

A trailing _fbsd is stripped from emulation names, but if the result was
still not a valid emulation the error was somewhat confusing.

For example,

% ld.lld -m elf_amd64_fbsd
unknown emulation: elf_amd64

Use the original emulation name in error messages.

Differential Revision: https://reviews.llvm.org/D24357

llvm-svn: 280983

8 years agoELF: accept -m elf_amd64 as an alias for -m elf_x86_64
Ed Maste [Thu, 8 Sep 2016 19:30:47 +0000 (19:30 +0000)]
ELF: accept -m elf_amd64 as an alias for -m elf_x86_64

In the FreeBSD world x86_64 still has its original name, amd64. Accept
it as an alias.

Differential Revision: https://reviews.llvm.org/D24356

llvm-svn: 280982

8 years ago[llvm-cov] Fix issues with segment highlighting in the html view
Vedant Kumar [Thu, 8 Sep 2016 19:18:23 +0000 (19:18 +0000)]
[llvm-cov] Fix issues with segment highlighting in the html view

The text and html coverage views take different approaches to emitting
highlighted regions. That's because this problem is easier in the text
view: there's no need to worry about escaping text or adding tooltip
content to a highlighted snippet.

Unfortunately, the html view didn't get region highlighting quite right.

This patch fixes the situation, bringing parity between the two views.

llvm-svn: 280981

8 years agoFix tsan-go build.
Evgeniy Stepanov [Thu, 8 Sep 2016 19:16:01 +0000 (19:16 +0000)]
Fix tsan-go build.

Disable the new abort-in-SIGABRT code under SANITIZER_GO.

llvm-svn: 280980

8 years ago[LV] Don't mark pointers used by scalarized memory accesses uniform
Matthew Simpson [Thu, 8 Sep 2016 19:11:07 +0000 (19:11 +0000)]
[LV] Don't mark pointers used by scalarized memory accesses uniform

Previously, all consecutive pointers were marked uniform after vectorization.
However, if a consecutive pointer is used by a memory access that is eventually
scalarized, the pointer won't remain uniform after all. An example is
predicated stores. Even though a predicated store may be consecutive, it will
still be scalarized, making it's pointer operand non-uniform.

This patch updates the logic in collectLoopUniforms to consider the cases where
a memory access may be scalarized. If a memory access may be scalarized, its
pointer operand is not marked uniform. The determination of whether a given
memory instruction will be scalarized or not has been moved into a common
function that is used by the vectorizer, cost model, and legality analysis.

Differential Revision: https://reviews.llvm.org/D24271

llvm-svn: 280979

8 years ago[pdb] Make YamlTypeDumperCallbacks reuse *this.
Zachary Turner [Thu, 8 Sep 2016 18:36:55 +0000 (18:36 +0000)]
[pdb] Make YamlTypeDumperCallbacks reuse *this.

Previously we were making new instances of YamlTypeDumperCallbacks
in order to recurse down and serialize / deserialize nested
records such as field lists.  This meant you could not pass
context from a higher operation to a lower operation because
it would be using a new instance of the visitor callback
delegate.

YAMLIO library was updated to support context-sensitive mappings,
so now we can reuse the same instance of the visitor callback
delegate even for nested operations.

llvm-svn: 280978

8 years ago[YAMLIO] Add the ability to map with context.
Zachary Turner [Thu, 8 Sep 2016 18:22:44 +0000 (18:22 +0000)]
[YAMLIO] Add the ability to map with context.

mapping a yaml field to an object in code has always been
a stateless operation.  You could still pass state by using the
`setContext` function of the YAMLIO object, but this represented
global state for the entire yaml input.  In order to have
context-sensitive state, it is necessary to pass this state in
at the granularity of an individual mapping.

This patch adds support for this type of context-sensitive state.
You simply pass an additional argument of type T to the
`mapRequired` or `mapOptional` functions, and provided you have
specialized a `MappingContextTraits<U, T>` class with the
appropriate mapping function, you can pass this context into
the mapping function.

Reviewed By: chandlerc
Differential Revision: https://reviews.llvm.org/D24162

llvm-svn: 280977

8 years ago[powerpc] Move #if to appease warnings-as-errors tests
Bill Seurer [Thu, 8 Sep 2016 18:09:47 +0000 (18:09 +0000)]
[powerpc] Move #if to appease warnings-as-errors tests

Previous patch added a #if which causes some unused identifier warnings.

llvm-svn: 280976

8 years agoRevert "Resubmit "Add a test for clang-tidy using the clang-cl driver.""
Ahmed Bougacha [Thu, 8 Sep 2016 18:02:14 +0000 (18:02 +0000)]
Revert "Resubmit "Add a test for clang-tidy using the clang-cl driver.""

This reverts commit r280839.
It's problematic on OS X, where the '/Users/...' paths are interpreted
as '/U' options.

Investigation ongoing in http://llvm.org/PR30328.

llvm-svn: 280975

8 years agoAMDGPU: Sign extend constants when splitting them
Matt Arsenault [Thu, 8 Sep 2016 17:44:36 +0000 (17:44 +0000)]
AMDGPU: Sign extend constants when splitting them

This will confuse later passes which try to look at the
immediate value and don't truncate first.

llvm-svn: 280974

8 years ago[Hexagon] Expand sext- and zextloads of vector types, not just extloads
Krzysztof Parzyszek [Thu, 8 Sep 2016 17:42:14 +0000 (17:42 +0000)]
[Hexagon] Expand sext- and zextloads of vector types, not just extloads

Recent change exposed this issue, breaking the Hexagon buildbots.

llvm-svn: 280973

8 years agoAMDGPU: Try to commute when selecting s_addk_i32/s_mulk_i32
Matt Arsenault [Thu, 8 Sep 2016 17:35:41 +0000 (17:35 +0000)]
AMDGPU: Try to commute when selecting s_addk_i32/s_mulk_i32

llvm-svn: 280972

8 years agoAArch64 .arch directive - Include default arch attributes with extensions.
Eric Christopher [Thu, 8 Sep 2016 17:27:03 +0000 (17:27 +0000)]
AArch64 .arch directive - Include default arch attributes with extensions.

Fix the .arch asm parser to use the full set of features for the architecture
and any extensions on the command line. Add and update testcases accordingly
as well as add an extension that was used but not supported.

llvm-svn: 280971

8 years agoAMDGPU: Support commuting with immediate in src0
Matt Arsenault [Thu, 8 Sep 2016 17:19:29 +0000 (17:19 +0000)]
AMDGPU: Support commuting with immediate in src0

llvm-svn: 280970

8 years agoRevert "[XRay] ARM 32-bit no-Thumb support in compiler-rt"
Renato Golin [Thu, 8 Sep 2016 17:13:15 +0000 (17:13 +0000)]
Revert "[XRay] ARM 32-bit no-Thumb support in compiler-rt"

This reverts commit r280890, as the related LLVM commit broke the thumb bots.

llvm-svn: 280969

8 years agoRevert "[XRay] ARM 32-bit no-Thumb support in Clang"
Renato Golin [Thu, 8 Sep 2016 17:12:32 +0000 (17:12 +0000)]
Revert "[XRay] ARM 32-bit no-Thumb support in Clang"

This reverts commit r280889, as the original LLVM commits broke the thumb
buildbots.

llvm-svn: 280968

8 years agoRevert "[XRay] ARM 32-bit no-Thumb support in LLVM"
Renato Golin [Thu, 8 Sep 2016 17:10:39 +0000 (17:10 +0000)]
Revert "[XRay] ARM 32-bit no-Thumb support in LLVM"

And associated commits, as they broke the Thumb bots.

This reverts commit r280935.
This reverts commit r280891.
This reverts commit r280888.

llvm-svn: 280967

8 years ago[LoopDataPrefetch] Use range based for loop; NFCI
Balaram Makam [Thu, 8 Sep 2016 17:08:20 +0000 (17:08 +0000)]
[LoopDataPrefetch] Use range based for loop; NFCI

Switch to range based for loop.
No functional change, but more readable code.

llvm-svn: 280966

8 years agoFix MSVC error from r280919
Pavel Labath [Thu, 8 Sep 2016 16:58:30 +0000 (16:58 +0000)]
Fix MSVC error from r280919

MSVC did not understand my brace-initializer syntax. :/

llvm-svn: 280965

8 years ago[InstCombine] return a vector-safe true/false constant
Sanjay Patel [Thu, 8 Sep 2016 16:54:02 +0000 (16:54 +0000)]
[InstCombine] return a vector-safe true/false constant

I introduced this potential bug by missing this diff in:
https://reviews.llvm.org/rL280873

...however, I'm not sure how to reach this code path with a regression test.
We may be able to remove this code and assume that the transform to a constant
is always handled by InstSimplify?

llvm-svn: 280964

8 years agoAdd unittest for r280760
Dehao Chen [Thu, 8 Sep 2016 16:53:40 +0000 (16:53 +0000)]
Add unittest for r280760

llvm-svn: 280963

8 years agoFix linker warning about sanitizer_common_nolibc functions on Windows
Reid Kleckner [Thu, 8 Sep 2016 16:46:06 +0000 (16:46 +0000)]
Fix linker warning about sanitizer_common_nolibc functions on Windows

llvm-svn: 280962

8 years agoReplace nextafter implementation
Matt Arsenault [Thu, 8 Sep 2016 16:37:56 +0000 (16:37 +0000)]
Replace nextafter implementation

This one passes conformance.

llvm-svn: 280961

8 years ago[InstCombine][X86] Regenerate masked memory op combine tests
Simon Pilgrim [Thu, 8 Sep 2016 16:32:37 +0000 (16:32 +0000)]
[InstCombine][X86] Regenerate masked memory op combine tests

llvm-svn: 280960

8 years ago[InstCombine][X86] Regenerate vperm2f128/vperm2i128 combine tests
Simon Pilgrim [Thu, 8 Sep 2016 16:30:46 +0000 (16:30 +0000)]
[InstCombine][X86] Regenerate vperm2f128/vperm2i128 combine tests

llvm-svn: 280959

8 years agoReally fix warnings about passing -std=gnu99 to MSVC
Reid Kleckner [Thu, 8 Sep 2016 16:25:34 +0000 (16:25 +0000)]
Really fix warnings about passing -std=gnu99 to MSVC

llvm-svn: 280958

8 years ago[InstCombine][X86] Regenerate insertps combine tests
Simon Pilgrim [Thu, 8 Sep 2016 16:15:21 +0000 (16:15 +0000)]
[InstCombine][X86] Regenerate insertps combine tests

llvm-svn: 280957

8 years ago[Coverage] Delete some dead code (NFC)
Vedant Kumar [Thu, 8 Sep 2016 16:14:14 +0000 (16:14 +0000)]
[Coverage] Delete some dead code (NFC)

llvm-svn: 280956

8 years agoAdd streamexecutor-config
Jason Henline [Thu, 8 Sep 2016 16:12:33 +0000 (16:12 +0000)]
Add streamexecutor-config

Summary:
Similar to llvm-config, gets command-line flags that are needed to build
applications linking against StreamExecutor.

Reviewers: jprice, jlebar

Subscribers: beanz, parallel_libs-commits

Differential Revision: https://reviews.llvm.org/D24302

llvm-svn: 280955

8 years agoRevert "[ESan][MIPS] Adds support for MIPS64"
Qin Zhao [Thu, 8 Sep 2016 16:09:46 +0000 (16:09 +0000)]
Revert "[ESan][MIPS] Adds support for MIPS64"

Summary:
This reverts commit 62b3eecdbe72af0255f0639b0446087a47efbf48. (D23799)

The CL cause 13 ESan test failure on x86_64:
Failing Tests (13):
    EfficiencySanitizer-x86_64 :: TestCases/large-stack-linux.c
    EfficiencySanitizer-x86_64 :: TestCases/libc-intercept.c
    EfficiencySanitizer-x86_64 :: TestCases/mmap-shadow-conflict.c
    EfficiencySanitizer-x86_64 :: TestCases/struct-simple.cpp
    EfficiencySanitizer-x86_64 :: TestCases/verbose-simple.c
    EfficiencySanitizer-x86_64 :: TestCases/workingset-early-fault.c
    EfficiencySanitizer-x86_64 :: TestCases/workingset-memset.cpp
    EfficiencySanitizer-x86_64 :: TestCases/workingset-midreport.cpp
    EfficiencySanitizer-x86_64 :: TestCases/workingset-samples.cpp
    EfficiencySanitizer-x86_64 :: TestCases/workingset-signal-posix.cpp
    EfficiencySanitizer-x86_64 :: TestCases/workingset-simple.cpp
    EfficiencySanitizer-x86_64 :: Unit/circular_buffer.cpp
    EfficiencySanitizer-x86_64 :: Unit/hashtable.cpp

  Unexpected Failures: 13

Reviewers: bruening, slthakur

Subscribers: sdardis, kubabrecka, beanz

Differential Revision: https://reviews.llvm.org/D24350

llvm-svn: 280954

8 years ago[compiler-rt] Don't use -fPIC when building for Windows
Francis Ricci [Thu, 8 Sep 2016 15:57:22 +0000 (15:57 +0000)]
[compiler-rt] Don't use -fPIC when building for Windows

Summary: This flag doesn't make sense on Windows systems.

Reviewers: beanz, kubabrecka, compnerd

Subscribers: dberris, llvm-commits, beanz

Differential Revision: https://reviews.llvm.org/D24320

llvm-svn: 280953

8 years ago[TableGen] AsmMatcher: Add AsmVariantName to Instruction class.
Sam Kolton [Thu, 8 Sep 2016 15:50:52 +0000 (15:50 +0000)]
[TableGen] AsmMatcher: Add AsmVariantName to Instruction class.

Summary:
This allows specifying instructions that are available only in specific assembler variant. If AsmVariantName is specified then instruction will be presented only in MatchTable for this variant. If not specified then assembler variants will be determined based on AsmString.
Also this allows splitting assembler match tables in same way as it is done in dissasembler.

Reviewers: ab, tstellarAMD, craig.topper, vpykhtin

Subscribers: wdng

Differential Revision: https://reviews.llvm.org/D24249

llvm-svn: 280952

8 years agoRemove restriction that 'sret' must be on the first parameter
Reid Kleckner [Thu, 8 Sep 2016 15:45:27 +0000 (15:45 +0000)]
Remove restriction that 'sret' must be on the first parameter

On Windows, it is often applied to the second parameter, and the x86
backend is prepared to deal with sret appearing on any parameter.

Other backends assume it only appears on parameter zero, but those are
target-specific requirements, and not an IR-level rule.

llvm-svn: 280951

8 years agoGive an x86 assembler test a triple
Reid Kleckner [Thu, 8 Sep 2016 15:40:43 +0000 (15:40 +0000)]
Give an x86 assembler test a triple

llvm-svn: 280950

8 years agorevert r280427
Dehao Chen [Thu, 8 Sep 2016 15:25:12 +0000 (15:25 +0000)]
revert r280427

Refactor replaceDominatedUsesWith to have a flag to control whether to replace uses in BB itself.

Summary: This is in preparation for LoopSink pass which calls replaceDominatedUsesWith to update after sinking.
llvm-svn: 280949

8 years agoAdd -polly-flatten-schedule pass.
Michael Kruse [Thu, 8 Sep 2016 15:02:36 +0000 (15:02 +0000)]
Add -polly-flatten-schedule pass.

The -polly-flatten-schedule pass reduces the number of scattering
dimensions in its isl_union_map form to make them easier to understand.
It is not meant to be used in production, only for debugging and
regression tests.

To illustrate, how it can make sets simpler, here is a lifetime set
used computed by the porposed DeLICM pass without flattening:

    { Stmt_reduction_for[0, 4] -> [0, 2, o2, o3] : o2 < 0;
      Stmt_reduction_for[0, 4] -> [0, 1, o2, o3] : o2 >= 5;
      Stmt_reduction_for[0, 4] -> [0, 1, 4, o3] : o3 > 0;
      Stmt_reduction_for[0, i1] -> [0, 1, i1, 1] : 0 <= i1 <= 3;
      Stmt_reduction_for[0, 4] -> [0, 2, 0, o3] : o3 <= 0 }

And here the same lifetime for a semantically identical one-dimensional
schedule:

    { Stmt_reduction_for[0, i1] -> [2 + 3i1] : 0 <= i1 <= 4 }

Differential Revision: https://reviews.llvm.org/D24310

llvm-svn: 280948

8 years agoHandle globs in global symbol names.
Rafael Espindola [Thu, 8 Sep 2016 14:50:55 +0000 (14:50 +0000)]
Handle globs in global symbol names.

Fixes pr28775.

llvm-svn: 280947

8 years agoGICHelper: Correctly assign return value
Tobias Grosser [Thu, 8 Sep 2016 14:34:54 +0000 (14:34 +0000)]
GICHelper: Correctly assign return value

... to preserve reference counting logic.

In practice the missing assignment would not have caused any issues. We still
fix it as the code is wrong and it also causes noise in the clang static
analysis runs.

llvm-svn: 280946

8 years ago[asan] Fix handle_abort_on_error.cc test on Darwin
Kuba Brecka [Thu, 8 Sep 2016 14:32:11 +0000 (14:32 +0000)]
[asan] Fix handle_abort_on_error.cc test on Darwin

r280885 added a testcase for handle_abort, which is broken on macOS, let’s add this support into sanitizer_mac.cc.

Differential Revision: https://reviews.llvm.org/D24344

llvm-svn: 280945

8 years agoAdded 'inline' attribute to basic_string's destructor
Aditya Kumar [Thu, 8 Sep 2016 14:31:44 +0000 (14:31 +0000)]
Added 'inline' attribute to basic_string's destructor

Author: laxmansole

Reviewers: howard.hinnant
           mclow.lists
Subscribers: EricWF, flyingforyou, evandro

Differential Revision: https://reviews.llvm.org/D22834

Currently basic_string's destructor is not getting inlined. So adding 'inline' attribute to ~basic_string().
Worked in collaboration with Aditya Kumar.

llvm-svn: 280944

8 years agoSCEVAffinator: Add missing __isl_take annotations
Tobias Grosser [Thu, 8 Sep 2016 14:31:31 +0000 (14:31 +0000)]
SCEVAffinator: Add missing __isl_take annotations

llvm-svn: 280943

8 years agoFix for rL280668, Intel(R) Memory Protection Extensions (Intel(R) MPX) support.
Valentina Giusti [Thu, 8 Sep 2016 14:16:45 +0000 (14:16 +0000)]
Fix for rL280668, Intel(R) Memory Protection Extensions (Intel(R) MPX) support.

Summary: Signed-off-by: Valentina Giusti <valentina.giusti@intel.com>

Reviewers: dvlahovski, granata.enrico, clayborg, labath

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D24255

llvm-svn: 280942

8 years agoUse a protected destructor instead of a virtual one.
Rafael Espindola [Thu, 8 Sep 2016 14:11:08 +0000 (14:11 +0000)]
Use a protected destructor instead of a virtual one.

llvm-svn: 280941

8 years agoScopInfo: Make clear that no double-free problem exists
Tobias Grosser [Thu, 8 Sep 2016 14:08:07 +0000 (14:08 +0000)]
ScopInfo: Make clear that no double-free problem exists

When running the clang static analyser to check for memory issues, this code
originally showed a double free, as the analyser was unable to understand that
isl_set_free always returns NULL and consequently later uses of the isl object
we just freed will never be reached. Without this knowledge, the analyser has
to issue a warning.

We refactor the code to make it clear that for empty maps the current loop
iteration is aborted.

llvm-svn: 280940

8 years agoScopDetection: Make sure we do not accidentally divide by zero
Tobias Grosser [Thu, 8 Sep 2016 14:08:05 +0000 (14:08 +0000)]
ScopDetection: Make sure we do not accidentally divide by zero

This code path is likely never triggered, but by still handling this case
locally we avoid warnings in clangs static analyzer.

llvm-svn: 280939

8 years agoDependenceInfo: Make clear that no double-free problem exists
Tobias Grosser [Thu, 8 Sep 2016 14:08:01 +0000 (14:08 +0000)]
DependenceInfo: Make clear that no double-free problem exists

When running the clang static analyser to check for memory issues, this code
originally showed a double free, as the analyser was unable to understand that
isl_union_map_free always returns NULL and consequently later uses of the isl
object we just freed will never be reached. Without this knowledge, the analyser
has to issue a warning.

We refactor the code to make it clear that for empty maps the current loop
iteration is aborted.

llvm-svn: 280938

8 years agoCompute section names only once.
Rafael Espindola [Thu, 8 Sep 2016 14:06:08 +0000 (14:06 +0000)]
Compute section names only once.

This simplifies error handling as there is now only one place in the
code that needs to consider the possibility that the name is
corrupted. Before we would do it in every access.

llvm-svn: 280937

8 years agoIslNodeBuilder: Add missing __isl_take annotations
Tobias Grosser [Thu, 8 Sep 2016 13:48:55 +0000 (13:48 +0000)]
IslNodeBuilder: Add missing __isl_take annotations

llvm-svn: 280936

8 years ago[ARM XRay] Try to fix Thumb-only failure
Renato Golin [Thu, 8 Sep 2016 13:45:10 +0000 (13:45 +0000)]
[ARM XRay] Try to fix Thumb-only failure

I mised the check that it had to support ARM to work. This commit tries
to fix that, to make sure we don't emit ARM code in Thumb-only mode.

llvm-svn: 280935

8 years ago[asan] Handle SIGBART signal description. (found by buildbot)
Filipe Cabecinhas [Thu, 8 Sep 2016 13:28:26 +0000 (13:28 +0000)]
[asan] Handle SIGBART signal description. (found by buildbot)

llvm-svn: 280934

8 years agoFix -Wcovered-switch-default warning in AppleObjCRuntimeV2.cpp
Ed Maste [Thu, 8 Sep 2016 13:17:42 +0000 (13:17 +0000)]
Fix -Wcovered-switch-default warning in AppleObjCRuntimeV2.cpp

The switch coveres all possible values. If a new one is added in the
future the compiler will start warning, providing a notification that
the switch needs updating.

llvm-svn: 280933

8 years ago[SDAGBuilder] Don't create a binary tree for switches in minsize mode
James Molloy [Thu, 8 Sep 2016 13:12:22 +0000 (13:12 +0000)]
[SDAGBuilder] Don't create a binary tree for switches in minsize mode

This bloats codesize - all of the non-leaf nodes are extra code.

llvm-svn: 280932

8 years agoFix unused variable and integer sign warnings from r280906
Ed Maste [Thu, 8 Sep 2016 13:11:31 +0000 (13:11 +0000)]
Fix unused variable and integer sign warnings from r280906

llvm-svn: 280931

8 years ago[asan] Reify ErrorDeadlySignal
Filipe Cabecinhas [Thu, 8 Sep 2016 12:58:15 +0000 (12:58 +0000)]
[asan] Reify ErrorDeadlySignal

Summary: Keep reifying other errors.

Reviewers: kcc, samsonov

Subscribers: llvm-commits, kubabrecka

Differential Revision: https://reviews.llvm.org/D23873

llvm-svn: 280930

8 years ago[Thumb1] AND with a constant operand can be converted into BIC
James Molloy [Thu, 8 Sep 2016 12:58:12 +0000 (12:58 +0000)]
[Thumb1] AND with a constant operand can be converted into BIC

So model the cost of materializing the constant operand C as the minimum of
C and ~C.

llvm-svn: 280929

8 years ago[Thumb1] Fix cost calculation for complemented immediates
James Molloy [Thu, 8 Sep 2016 12:58:04 +0000 (12:58 +0000)]
[Thumb1] Fix cost calculation for complemented immediates

Materializing something like "-3" can be done as 2 instructions:
  MOV r0, #3
  MVN r0, r0

This has a cost of 2, not 3. It looks like we were already trying to detect this pattern in TII::getIntImmCost(), but were taking the complement of the zero-extended value instead of the sign-extended value which is unlikely to ever produce a number < 256.

There were no tests failing after changing this... :/

llvm-svn: 280928

8 years ago[SelectionDAG] Add BUILD_VECTOR support to computeKnownBits and SimplifyDemandedBits
Simon Pilgrim [Thu, 8 Sep 2016 12:57:51 +0000 (12:57 +0000)]
[SelectionDAG] Add BUILD_VECTOR support to computeKnownBits and SimplifyDemandedBits

Add the ability to computeKnownBits and SimplifyDemandedBits to extract the known zero/one bits from BUILD_VECTOR, returning the known bits that are shared by every vector element.

This is an initial step towards determining the sign bits of a vector (PR29079).

Differential Revision: https://reviews.llvm.org/D24253

llvm-svn: 280927

8 years ago[DAGCombiner] Enable AND combines of splatted constant vectors
Simon Pilgrim [Thu, 8 Sep 2016 12:36:39 +0000 (12:36 +0000)]
[DAGCombiner] Enable AND combines of splatted constant vectors

Allow AND combines to use a vector splatted constant as well as a constant scalar.

Preliminary part of D24253.

llvm-svn: 280926

8 years agoPack InputSectionData from 72 to 64 bytes. NFC.
Rafael Espindola [Thu, 8 Sep 2016 12:33:41 +0000 (12:33 +0000)]
Pack InputSectionData from 72 to 64 bytes. NFC.

llvm-svn: 280925

8 years agoLLDB: API for iPermission of object file's sections
Abhishek Aggarwal [Thu, 8 Sep 2016 12:22:56 +0000 (12:22 +0000)]
LLDB: API for iPermission of object file's sections

 Summary:
 - Added an API to public interface that provides permissions (RWX) of
   individual sections of an object file

 - Earlier, there was no way to find out this information through SB
   APIs

 - A possible use case of this API is:
   when a user wants to know the sections that have executable machine
   instructions and want to write a tool on top of LLDB based on this
   information

 - Differential Revision: https://reviews.llvm.org/D24251

llvm-svn: 280924

8 years agoScopInfo: Add missing __isl_take annotation
Tobias Grosser [Thu, 8 Sep 2016 11:18:56 +0000 (11:18 +0000)]
ScopInfo: Add missing __isl_take annotation

llvm-svn: 280923

8 years agoFix test breakage in r280919
Pavel Labath [Thu, 8 Sep 2016 11:09:14 +0000 (11:09 +0000)]
Fix test breakage in r280919

It turns out that self.dbg.GetSelectedPlatform().GetTriple() is not a good way
to get the triple of the process, as it returns the incorrect triple in case of a
32-bit process running on a 64-bit platform.

Instead, go the long way round and ask the stub for the process triple. This
fixes the test for i386.

llvm-svn: 280922

8 years agoMoved unreachable to appease msvc, gcc and clang
Simon Pilgrim [Thu, 8 Sep 2016 11:03:41 +0000 (11:03 +0000)]
Moved unreachable to appease msvc, gcc and clang

llvm-svn: 280921

8 years ago[tsan] Support C++11 call_once in TSan on Darwin
Kuba Brecka [Thu, 8 Sep 2016 10:15:20 +0000 (10:15 +0000)]
[tsan] Support C++11 call_once in TSan on Darwin

This patch adds a wrapper for call_once, which uses an already-compiled helper __call_once with an atomic release which is invisible to TSan. To avoid false positives, the interceptor performs an explicit atomic release in the callback wrapper.

Differential Revision: https://reviews.llvm.org/D24188

llvm-svn: 280920

8 years agogdb-remote: Add jModulesInfo packet
Pavel Labath [Thu, 8 Sep 2016 10:07:04 +0000 (10:07 +0000)]
gdb-remote: Add jModulesInfo packet

Summary:
This adds the jModulesInfo packet, which is the equivalent of qModulesInfo, but it enables us to
query multiple modules at once. This makes a significant speed improvement in case the
application has many (over a hundred) modules, and the communication link has a non-negligible
latency. This functionality is accessed by ProcessGdbRemote::PrefetchModuleSpecs(), which does
the caching. GetModuleSpecs() is modified to first consult the cache before asking the remote
stub. PrefetchModuleSpecs is currently only called from POSIX-DYLD dynamic loader plugin, after
it reads the list of modules from the inferior memory, but other uses are possible.

This decreases the attach time to an android application by about 40%.

Reviewers: clayborg

Subscribers: tberghammer, lldb-commits, danalbert

Differential Revision: https://reviews.llvm.org/D24236

llvm-svn: 280919

8 years agoRevert "[ARM] Lower UDIV+UREM to UDIV+MLS (and the same for SREM)"
Pablo Barrio [Thu, 8 Sep 2016 10:05:57 +0000 (10:05 +0000)]
Revert "[ARM] Lower UDIV+UREM to UDIV+MLS (and the same for SREM)"

This reverts commit r280808.

It is possible that this change results in an infinite loop. This
is causing timeouts in some tests on ARM, and a Chromebook bot is
failing.

llvm-svn: 280918

8 years agoFixed a 'not all control paths return a value' warning on MSVC builds
Simon Pilgrim [Thu, 8 Sep 2016 09:59:58 +0000 (09:59 +0000)]
Fixed a 'not all control paths return a value' warning on MSVC builds

llvm-svn: 280917

8 years ago[ELF] - Add virtual destructor to LinkerScriptBase class. NFC.
George Rimar [Thu, 8 Sep 2016 09:59:13 +0000 (09:59 +0000)]
[ELF] - Add virtual destructor to LinkerScriptBase class. NFC.

Absence of it caused a clang warning:
warning: 'lld::elf::LinkerScriptBase' has virtual functions but non-virtual destructor [-Wnon-virtual-dtor]

At fact we don't need it here because do not destroy this object by
base pointer.

llvm-svn: 280916

8 years agoLinker script: implement ALIGNOF
Eugene Leviant [Thu, 8 Sep 2016 09:08:30 +0000 (09:08 +0000)]
Linker script: implement ALIGNOF

Differential revision: https://reviews.llvm.org/D24141

llvm-svn: 280915

8 years ago[ELF][MIPS] Fix initialization of TLS-related GOT entries
Simon Atanasyan [Thu, 8 Sep 2016 09:07:19 +0000 (09:07 +0000)]
[ELF][MIPS] Fix initialization of TLS-related GOT entries

This patch allows static linking of TLS code. To do that it fixes
GOT entries initialization.

If TLS-related GOT entry created for a preemptible symbol i.e. has
a corresponding dynamic relocation, leave the entry initialized by zero.
Write down adjusted TLS symbol's values otherwise. For the adjustments
calculation use offsets for thread-local storage.

https://www.linux-mips.org/wiki/NPTL

llvm-svn: 280914

8 years ago[ELF][MIPS] Update the comment
Simon Atanasyan [Thu, 8 Sep 2016 09:07:12 +0000 (09:07 +0000)]
[ELF][MIPS] Update the comment

llvm-svn: 280913

8 years agoSet entry address to 0x0 if no _start symbol
Eugene Leviant [Thu, 8 Sep 2016 08:57:51 +0000 (08:57 +0000)]
Set entry address to 0x0 if no _start symbol

Differential revision: https://reviews.llvm.org/D23925

llvm-svn: 280912

8 years ago[ELF] - Apply clang-format to LinkerScript.cpp, NFC.
George Rimar [Thu, 8 Sep 2016 08:20:30 +0000 (08:20 +0000)]
[ELF] - Apply clang-format to LinkerScript.cpp, NFC.

llvm-svn: 280911

8 years ago[ELF] - Linkerscript: simplify access to templated methods from parser.
George Rimar [Thu, 8 Sep 2016 08:19:13 +0000 (08:19 +0000)]
[ELF] - Linkerscript: simplify access to templated methods from parser.

Previous way of accessing templated methods was a bit bulky,
Patch introduces small interface based solution.

Differential revision: https://reviews.llvm.org/D23872

llvm-svn: 280910

8 years ago[mips][microMIPS] Implement DBITSWAP, DLSA and LWUPC and add tests for AUI instructions
Hrvoje Varga [Thu, 8 Sep 2016 07:41:43 +0000 (07:41 +0000)]
[mips][microMIPS] Implement DBITSWAP, DLSA and LWUPC and add tests for AUI instructions
Differential Revision: https://reviews.llvm.org/D16452

llvm-svn: 280909