8 years agoRun interprocedural const prop before global optimizer
Gerolf Hoflehner [Thu, 3 Jul 2014 19:28:15 +0000 (19:28 +0000)]
Run interprocedural const prop before global optimizer

Exposes more constant globals that can be removed by
the global optimizer. A specific example is the removal
of the static global block address array in
clang/test/CodeGen/indirect-goto.c. This change impacts only
lower optimization levels. With LTO interprocedural
const prop runs already before global opt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212284 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agofix configure+make build
Rafael Espindola [Thu, 3 Jul 2014 19:09:53 +0000 (19:09 +0000)]
fix configure+make build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212283 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd support for inline asm symbols to IRObjectFile.
Rafael Espindola [Thu, 3 Jul 2014 18:59:23 +0000 (18:59 +0000)]
Add support for inline asm symbols to IRObjectFile.

This also enables it in llvm-nm so that it can be tested.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212282 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd the -U flag to llvm-nm as an alias to -defined-only
Kevin Enderby [Thu, 3 Jul 2014 18:18:50 +0000 (18:18 +0000)]
Add the -U flag to llvm-nm as an alias to -defined-only
as darwin’s nm(1) uses -U for this functionality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212280 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agofixed typo in comment
Sanjay Patel [Thu, 3 Jul 2014 16:17:20 +0000 (16:17 +0000)]
fixed typo in comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212279 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoIR: cleanup Module::dropReferences
David Majnemer [Thu, 3 Jul 2014 16:12:55 +0000 (16:12 +0000)]
IR: cleanup Module::dropReferences

This replaces some old-style loops with range-based for.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212278 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ARM] Implement ISB memory barrier intrinsic
Yi Kong [Thu, 3 Jul 2014 16:00:41 +0000 (16:00 +0000)]
[ARM] Implement ISB memory barrier intrinsic

Adds support for __builtin_arm_isb. Also corrects DSB and ISB instructions
modelling by adding has-side-effects property.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212276 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agobug fix for PR20020: anti-dependency-breaker causes miscompilation
Sanjay Patel [Thu, 3 Jul 2014 15:19:40 +0000 (15:19 +0000)]
bug fix for PR20020: anti-dependency-breaker causes miscompilation

This patch sets the 'KeepReg' bit for any tied and live registers during the PrescanInstruction() phase of the dependency breaking algorithm. It then checks those 'KeepReg' bits during the ScanInstruction() phase to avoid changing any tied registers. For more details, please see comments in:

I added two FIXME comments for code that I think can be removed by using register iterators that include self. I don't want to include those code changes with this patch, however, to keep things as small as possible.

The test case is larger than I'd like, but I don't know how to reduce it further and still produce the failing asm.

Differential Revision: http://reviews.llvm.org/D4351

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212275 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix ppcf128 component access on little-endian systems
Ulrich Weigand [Thu, 3 Jul 2014 15:06:47 +0000 (15:06 +0000)]
Fix ppcf128 component access on little-endian systems

The PowerPC 128-bit long double data type (ppcf128 in LLVM) is in fact a
pair of two doubles, where one is considered the "high" or
more-significant part, and the other is considered the "low" or
less-significant part.  When a ppcf128 value is stored in memory or a
register pair, the high part always comes first, i.e. at the lower
memory address or in the lower-numbered register, and the low part
always comes second.  This is true both on big-endian and little-endian
PowerPC systems.  (Similar to how with a complex number, the real part
always comes first and the imaginary part second, no matter the byte
order of the system.)

This was implemented incorrectly for little-endian systems in LLVM.
This commit fixes three related issues:

- When printing an immediate ppcf128 constant to assembler output
  in emitGlobalConstantFP, emit the high part first on both big-
  and little-endian systems.

- When lowering a ppcf128 type to a pair of f64 types in SelectionDAG
  (which is used e.g. when generating code to load an argument into a
  register pair), use correct low/high part ordering on little-endian

- In a related issue, because lowering ppcf128 into a pair of f64 must
  operate differently from lowering an int128 into a pair of i64,
  bitcasts between ppcf128 and int128 must not be optimized away by the
  DAG combiner on little-endian systems, but must effect a word-swap.

Reviewed by Hal Finkel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212274 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[msan] Stop propagating shadow in blacklisted functions.
Evgeniy Stepanov [Thu, 3 Jul 2014 11:56:30 +0000 (11:56 +0000)]
[msan] Stop propagating shadow in blacklisted functions.

With this change all values passed through blacklisted functions
become fully initialized. Previous behavior was to initialize all
loads in blacklisted functions, but apply normal shadow propagation
logic for all other operation.

This makes blacklist applicable in a wider range of situations.

It also makes code for blacklisted functions a lot shorter, which
works as yet another workaround for PR17409.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212268 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[msan] Add missing attributes in MemorySanitizer tests.
Evgeniy Stepanov [Thu, 3 Jul 2014 11:49:50 +0000 (11:49 +0000)]
[msan] Add missing attributes in MemorySanitizer tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212267 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert of r212265.
Evgeniy Stepanov [Thu, 3 Jul 2014 11:35:08 +0000 (11:35 +0000)]
Revert of r212265.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212266 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[msan] Stop propagating shadow in blacklisted functions.
Evgeniy Stepanov [Thu, 3 Jul 2014 11:18:48 +0000 (11:18 +0000)]
[msan] Stop propagating shadow in blacklisted functions.

With this change all values passed through blacklisted functions
become fully initialized. Previous behavior was to initialize all
loads in blacklisted functions, but apply normal shadow propagation
logic for all other operation.

This makes blacklist applicable in a wider range of situations.

It also makes code for blacklisted functions a lot shorter, which
works as yet another workaround for PR17409.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212265 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMinor stylistic fix in SimplifyCFG (test commit)
Marcello Maggioni [Thu, 3 Jul 2014 08:29:06 +0000 (08:29 +0000)]
Minor stylistic fix in SimplifyCFG (test commit)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212259 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoLet llvm/test/CodeGen/X86/lower-bitcast.ll tolerant of win32 calling convention.
NAKAMURA Takumi [Thu, 3 Jul 2014 07:25:00 +0000 (07:25 +0000)]
Let llvm/test/CodeGen/X86/lower-bitcast.ll tolerant of win32 calling convention.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212258 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] Fix the completely broken vector widening legalization of bswap.
Chandler Carruth [Thu, 3 Jul 2014 07:04:38 +0000 (07:04 +0000)]
[x86] Fix the completely broken vector widening legalization of bswap.

This operation was classified as a binary operation in the widening
logic for some reason (clearly, untested). It is in fact a unary
operation. Add a RUN line to a test to exercise this for x86.

Note that again the vector widening strategy doesn't regress anything
and in one case removes a totally unecessary instruction that we
couldn't avoid when promoting the element type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212257 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] Fix crashes in lowering bitcast instructions with the widening
Chandler Carruth [Thu, 3 Jul 2014 03:43:47 +0000 (03:43 +0000)]
[x86] Fix crashes in lowering bitcast instructions with the widening

This also runs the test in that mode which would reproduce the crash.
What I love is that *every single FIXME* in the test is addressed by
switching to widening.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212254 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[aarch64] Add a test that should have been in r212242 but I forgot to
Chandler Carruth [Thu, 3 Jul 2014 02:12:26 +0000 (02:12 +0000)]
[aarch64] Add a test that should have been in r212242 but I forgot to
add it. Sorry about that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212251 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd new lines to debugging information.
Richard Trieu [Thu, 3 Jul 2014 02:11:49 +0000 (02:11 +0000)]
Add new lines to debugging information.

Differential Revision: http://reviews.llvm.org/D4262

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212250 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] Based on a long conversation between myself, Jim Grosbach, Hal
Chandler Carruth [Thu, 3 Jul 2014 02:11:29 +0000 (02:11 +0000)]
[x86] Based on a long conversation between myself, Jim Grosbach, Hal
Finkel, Eric Christopher, and a bunch of other people I'm probably
forgetting (sorry), add an option to the x86 backend to widen vectors
during type legalization rather than promote them.

This still would promote vNi1 vectors to get the masks right, but would
widen other vectors. A lot of experiments are piling up right now
showing that widening should probably be the default legalization
strategy outside of vNi1 cases, but it is very hard to test the
rammifications of that and fix bugs in widening-based legalization
without an option that enables it. I'll be checking in tests shortly
that use this option to exercise cases where widening doesn't work well
and hopefully we'll be able to switch fully to this soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212249 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoInvert the MC -> Object dependency.
Rafael Espindola [Thu, 3 Jul 2014 02:01:39 +0000 (02:01 +0000)]
Invert the MC -> Object dependency.

Now that we have a lib/MC/MCAnalysis, the dependency was there just because
of two helper classes. Move the two over to MC.

This will allow IRObjectFile to parse inline assembly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212248 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMake these preprocessor directives match all of the others in the port.
Eric Christopher [Thu, 3 Jul 2014 00:44:31 +0000 (00:44 +0000)]
Make these preprocessor directives match all of the others in the port.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212245 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove dead code.
Eric Christopher [Thu, 3 Jul 2014 00:44:28 +0000 (00:44 +0000)]
Remove dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212244 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[codegen,aarch64] Add a target hook to the code generator to control
Chandler Carruth [Thu, 3 Jul 2014 00:23:43 +0000 (00:23 +0000)]
[codegen,aarch64] Add a target hook to the code generator to control
vector type legalization strategies in a more fine grained manner, and
change the legalization of several v1iN types and v1f32 to be widening
rather than scalarization on AArch64.

This fixes an assertion failure caused by scalarizing nodes like "v1i32
trunc v1i64". As v1i64 is legal it will fail to scalarize v1i32.

This also provides a foundation for other targets to have more granular
control over how vector types are legalized.

Patch by Hao Liu, reviewed by Tim Northover. I'm committing it to allow
some work to start taking place on top of this patch as it adds some
really important hooks to the backend that I'd like to immediately start
using. =]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212242 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove subtarget dependent features into the subtarget from the target
Eric Christopher [Thu, 3 Jul 2014 00:10:24 +0000 (00:10 +0000)]
Move subtarget dependent features into the subtarget from the target
machine. Includes a fix for a subtarget initialization for
hard floating point on mips16.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212240 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSo that we can include frame lowering in the subtarget, remove include
Eric Christopher [Wed, 2 Jul 2014 23:29:55 +0000 (23:29 +0000)]
So that we can include frame lowering in the subtarget, remove include
circular dependency with the subtarget by inlining accessor methods and
outlining a routine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212236 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd the -reverse-sort flag (aka -r) to llvm-nm
Kevin Enderby [Wed, 2 Jul 2014 23:23:58 +0000 (23:23 +0000)]
Add the -reverse-sort flag (aka -r) to llvm-nm
which exists in other Unix nm(1)’s.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212235 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoSo that we can include target lowering in the subtarget, remove include
Eric Christopher [Wed, 2 Jul 2014 23:18:40 +0000 (23:18 +0000)]
So that we can include target lowering in the subtarget, remove include
circular dependency with the subtarget by inlining accessor methods and
outlining a routine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212234 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUpdate comment and include guard.
Rafael Espindola [Wed, 2 Jul 2014 22:31:51 +0000 (22:31 +0000)]
Update comment and include guard.

I missed these when moving the files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212231 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[OCaml] Documentation improvements.
Peter Zotov [Wed, 2 Jul 2014 22:17:20 +0000 (22:17 +0000)]
[OCaml] Documentation improvements.

Patch by Julien Sagot

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212230 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix typos.
Eric Christopher [Wed, 2 Jul 2014 22:05:40 +0000 (22:05 +0000)]
Fix typos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212228 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "DebugInfo: Ensure that all debug location scope chains from instructions...
David Blaikie [Wed, 2 Jul 2014 21:42:28 +0000 (21:42 +0000)]
Revert "DebugInfo: Ensure that all debug location scope chains from instructions within a function, lead to the function itself."

This reverts commit r212205.

Reverting this again, still seeing crashes when building compiler-rt...
Sorry for the continued noise, not sure why I'm failing to reproduce
this locally.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212226 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove the data layout and selection dag info from the mips target machine
Eric Christopher [Wed, 2 Jul 2014 21:29:23 +0000 (21:29 +0000)]
Move the data layout and selection dag info from the mips target machine
down to the subtarget.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212224 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] AVX512: Allow writemask argument in vpermt* intrinsics
Adam Nemet [Wed, 2 Jul 2014 21:26:01 +0000 (21:26 +0000)]
[X86] AVX512: Allow writemask argument in vpermt* intrinsics

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212223 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] AVX512: Generate Pat<>'s for the vpermt2* intrinsics via multiclass
Adam Nemet [Wed, 2 Jul 2014 21:25:58 +0000 (21:25 +0000)]
[X86] AVX512: Generate Pat<>'s for the vpermt2* intrinsics via multiclass

This new multiclass, avx512_perm_table_3src derives from the current one and
provides the Pat<>.  The next patch will add another Pat<> that uses the

Note that I dropped the type annotation from the intrinsic call, i.e.: (v16f32
VR512:$src1) -> R512:$src1.  I think that this should be fine (at least many
intrinsic calls don't provide them) and it greatly reduces the number of
template arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212222 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] AVX512: Add writemask variants for vperm*2*
Adam Nemet [Wed, 2 Jul 2014 21:25:54 +0000 (21:25 +0000)]
[X86] AVX512: Add writemask variants for vperm*2*

This includes assembler and codegen support (see the new tests in
avx512-encodings.s and avx512-shuffle.ll).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212221 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoR600: Add a comment that llvm.AMDGPU.trunc is a legacy intrinsic
Tom Stellard [Wed, 2 Jul 2014 20:53:57 +0000 (20:53 +0000)]
R600: Add a comment that llvm.AMDGPU.trunc is a legacy intrinsic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212218 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoR600/SI: Use a ComplexPattern for ADDR64 addressing of MUBUF loads
Tom Stellard [Wed, 2 Jul 2014 20:53:56 +0000 (20:53 +0000)]
R600/SI: Use a ComplexPattern for ADDR64 addressing of MUBUF loads

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212217 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoR600: Promote i64 loads to v2i32
Tom Stellard [Wed, 2 Jul 2014 20:53:54 +0000 (20:53 +0000)]
R600: Promote i64 loads to v2i32

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212216 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoR600/SI: Adjsut SGPR live ranges before register allocation
Tom Stellard [Wed, 2 Jul 2014 20:53:48 +0000 (20:53 +0000)]
R600/SI: Adjsut SGPR live ranges before register allocation

SGPRs are written by instructions that sometimes will ignore control flow,
which means if you have code like:

if (VGPR0) {
  SGPR0 = S_MOV_B32 0
} else {
  SGPR0 = S_MOV_B32 1

The value of SGPR0 will 1 no matter what the condition is.

In order to deal with this situation correctly, we need to view the
program as if it were a single basic block when we calculate the
live ranges for the SGPRs.  They way we actually update the live
range is by iterating over all of the segments in each LiveRange
object and setting the end of each segment equal to the start of
the next segment.  So a live range like:

[3888r,9312r:0)[10032B,10384B:0)  0@3888r

will become:

[3888r,10032B:0)[10032B,10384B:0)  0@3888r

This change will allow us to use SALU instructions within branches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212215 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoR600/SI: Add verifier check for immediates in register operands.
Tom Stellard [Wed, 2 Jul 2014 20:53:44 +0000 (20:53 +0000)]
R600/SI: Add verifier check for immediates in register operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212214 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove non-static field initializer to appease MSVC
Alexey Samsonov [Wed, 2 Jul 2014 20:25:42 +0000 (20:25 +0000)]
Remove non-static field initializer to appease MSVC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212212 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix configure+make build.
Rafael Espindola [Wed, 2 Jul 2014 20:05:48 +0000 (20:05 +0000)]
Fix configure+make build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212210 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove CFG building code to a new lib/MC/MCAnalysis library.
Rafael Espindola [Wed, 2 Jul 2014 19:49:34 +0000 (19:49 +0000)]
Move CFG building code to a new lib/MC/MCAnalysis library.

The new library is 150KB on a Release+Asserts build, so it is quiet a bit of
code that regular users of MC don't need to link with now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212209 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDebugInfo: Ensure that all debug location scope chains from instructions within a...
David Blaikie [Wed, 2 Jul 2014 18:32:05 +0000 (18:32 +0000)]
DebugInfo: Ensure that all debug location scope chains from instructions within a function, lead to the function itself.

Originally committed in r211723, reverted in r211724 due to failure
cases found and fixed (ArgumentPromotion: r211872, Inlining: r212065),
committed again in r212085 and reverted again in r212089 after fixing
some other cases, such as debug info subprogram lists not keeping track
of the function they represent (r212128) and then short-circuiting
things like LiveDebugVariables that build LexicalScopes for functions
that might not have full debug info.

And again, I believe the invariant actually holds for some reasonable
amount of code (but I'll keep an eye on the buildbots and see what
happens... ).

Original commit message:

PR20038: DebugInfo: Inlined call sites where the caller has debug info
but the call itself has no debug location.

This situation does bad things when inlined, so I've fixed Clang not to
produce inlinable call sites without locations when the caller has debug
info (in the one case where I could find that this occurred). This
updates the PR20038 test case to be what clang now produces, and readds
the assertion that had to be removed due to this bug.

I've also beefed up the debug info verifier to help diagnose these
issues in the future, and I hope to add checks to the inliner to just
assert-fail if it encounters this situation. If, in the future, we
decide we have to cope with this situation, the right thing to do is
probably to just remove all the DebugLocs from the inlined instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212205 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[RegAllocGreedy] Provide a subtarget hook to disable the local reassignment
Quentin Colombet [Wed, 2 Jul 2014 18:32:04 +0000 (18:32 +0000)]
[RegAllocGreedy] Provide a subtarget hook to disable the local reassignment
By default, no functionality change.
This is a follow-up of r212099.

This hook provides a finer grain to control the optimization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212204 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDon't try to construct debug LexicalScopes hierarchy for functions that do not have...
David Blaikie [Wed, 2 Jul 2014 18:31:35 +0000 (18:31 +0000)]
Don't try to construct debug LexicalScopes hierarchy for functions that do not have top level debug information.

If a function isn't actually in a CU's subprogram list in the debug info
metadata, ignore all the DebugLocs and don't try to build scopes, track
variables, etc.

While this is possibly a minor optimization, it's also a correctness fix
for an incoming patch that will add assertions to LexicalScopes and the
debug info verifier to ensure that all scope chains lead to debug info
for the current function.

Fix up a few test cases that had broken/incomplete debug info that could
violate this constraint.

Add a test case where this occurs by design (inlining a
debug-info-having function in an attribute nodebug function - we want
this to work because /if/ the nodebug function is then inlined into a
debug-info-having function, it should be fine (and will work fine - we
just stitch the scopes up as usual), but should the inlining not happen
we need to not assert fail either).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212203 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoConstify the Function pointers in the result of makeSubprogramMap
David Blaikie [Wed, 2 Jul 2014 18:30:05 +0000 (18:30 +0000)]
Constify the Function pointers in the result of makeSubprogramMap

These don't need to be mutable and callers being added soon in CodeGen
won't have access to non-const Module&.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212202 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAArch64: Re-enable AArch64AddressTypePromotion
Duncan P. N. Exon Smith [Wed, 2 Jul 2014 18:17:40 +0000 (18:17 +0000)]
AArch64: Re-enable AArch64AddressTypePromotion

This reverts commits r212189 and r212190.

While this pass was accidentally disabled (until r212073), r205437
slipped in a use of `auto` that should have been `auto&`.

This fixes PR20188.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212201 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAArch64: Remove unnecessary parens
Duncan P. N. Exon Smith [Wed, 2 Jul 2014 18:14:03 +0000 (18:14 +0000)]
AArch64: Remove unnecessary parens

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212199 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoR600: Fix crashes when an illegal type load or store is not handled.
Matt Arsenault [Wed, 2 Jul 2014 17:44:53 +0000 (17:44 +0000)]
R600: Fix crashes when an illegal type load or store is not handled.

I don't think anything hits this now, but will be exposed in future

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212197 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoJust adding a getHalfTy method to IRBuilder for completeness.
Puyan Lotfi [Wed, 2 Jul 2014 17:33:00 +0000 (17:33 +0000)]
Just adding a getHalfTy method to IRBuilder for completeness.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212195 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAArch64: Merge isa with dyn_cast
Duncan P. N. Exon Smith [Wed, 2 Jul 2014 17:26:39 +0000 (17:26 +0000)]
AArch64: Merge isa with dyn_cast

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212194 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoXFAIL the test to go with r202189
Duncan P. N. Exon Smith [Wed, 2 Jul 2014 17:07:03 +0000 (17:07 +0000)]
XFAIL the test to go with r202189

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212190 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAArch64: Temporarily disable AArch64AddressTypePromotion
Duncan P. N. Exon Smith [Wed, 2 Jul 2014 17:03:16 +0000 (17:03 +0000)]
AArch64: Temporarily disable AArch64AddressTypePromotion

Temporarily disable AArch64AddressTypePromotion, which was effectively
re-enabled in r212073 and r212075, while I look into PR20188.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212189 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ASan] Print exact source location of global variables in error reports.
Alexey Samsonov [Wed, 2 Jul 2014 16:54:41 +0000 (16:54 +0000)]
[ASan] Print exact source location of global variables in error reports.

See https://code.google.com/p/address-sanitizer/issues/detail?id=299 for the
original feature request.

Introduce llvm.asan.globals metadata, which Clang (or any other frontend)
may use to report extra information about global variables to ASan
instrumentation pass in the backend. This metadata replaces
llvm.asan.dynamically_initialized_globals that was used to detect init-order
bugs. llvm.asan.globals contains the following data for each global:
  1) source location (file/line/column info);
  2) whether it is dynamically initialized;
  3) whether it is blacklisted (shouldn't be instrumented).

Source location data is then emitted in the binary and can be picked up
by ASan runtime in case it needs to print error report involving some global.
For example:

  0x... is located 4 bytes to the right of global variable 'C::array' defined in '/path/to/file:17:8' (0x...) of size 40

These source locations are printed even if the binary doesn't have any
debug info.

This is an ABI-breaking change. ASan initialization is renamed to
__asan_init_v4(). Pre-built libraries compiled with older Clang will not work
with the fresh runtime.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212188 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "Revert "MachineScheduler: better book-keeping for asserts.""
Chad Rosier [Wed, 2 Jul 2014 16:46:08 +0000 (16:46 +0000)]
Revert "Revert "MachineScheduler: better book-keeping for asserts.""

This reverts commit r212109, which reverted r212088.

However, disable the assert as it's not necessary for correctness.  There are
several corner cases that the assert needed to handle better for in-order
scheduling, but none of them are incorrect scheduler behavior. The assert is
mainly there to collect good unit tests like this and ensure that the
target-independent scheduler is working as expected with the various machine

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212187 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAlso document the 'arc commit' commands in the 'Committing a change' section of the...
Sylvestre Ledru [Wed, 2 Jul 2014 15:25:25 +0000 (15:25 +0000)]
Also document the 'arc commit' commands in the 'Committing a change' section of the Phabricator doc

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212184 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoX86: When combining shuffles just remove shuffles that are completely redundant.
Benjamin Kramer [Wed, 2 Jul 2014 15:09:44 +0000 (15:09 +0000)]
X86: When combining shuffles just remove shuffles that are completely redundant.

CombineTo doesn't allow replacing a node with itself so this would crash if the
combined shuffle is the same as the input shuffle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212181 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUndefine R2, R4, R6 after use.
Axel Naumann [Wed, 2 Jul 2014 14:40:35 +0000 (14:40 +0000)]
Undefine R2, R4, R6 after use.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212179 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAVX-512: dec/inc instructions are slow on KNL
Elena Demikhovsky [Wed, 2 Jul 2014 14:11:05 +0000 (14:11 +0000)]
AVX-512: dec/inc instructions are slow on KNL
After Alexey Volkov, I'm adding the same property for KNL, that prefers ADD/SUB instead of INC/DEC.
Added a test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212178 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove operator[] to DomTreeNodeBase
Matt Arsenault [Wed, 2 Jul 2014 06:50:48 +0000 (06:50 +0000)]
Move operator[] to DomTreeNodeBase

The comment in base even refers to it, but it was only defined
in the subclass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212169 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix missing const
Matt Arsenault [Wed, 2 Jul 2014 06:45:26 +0000 (06:45 +0000)]
Fix missing const

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212168 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoInstCombine: Optimize x/INT_MIN to x==INT_MIN
David Majnemer [Wed, 2 Jul 2014 06:42:13 +0000 (06:42 +0000)]
InstCombine: Optimize x/INT_MIN to x==INT_MIN

The result of x/INT_MIN is either 0 or 1, we can just use an icmp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212167 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[cleanup] Hoist an if-else chain on ISD opcodes (really designed for
Chandler Carruth [Wed, 2 Jul 2014 06:23:34 +0000 (06:23 +0000)]
[cleanup] Hoist an if-else chain on ISD opcodes (really designed for
switches) into a switch, and sink them into a dispatch function that can
return the result rather than awkward variable setting with breaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212166 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoInstCombine: Add a vector variant test for PR20186
David Majnemer [Wed, 2 Jul 2014 06:14:13 +0000 (06:14 +0000)]
InstCombine: Add a vector variant test for PR20186

No functional change, just adding more test coverage that was meant to
go in with r212164.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212165 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoInstCombine: Don't turn -(x/INT_MIN) -> x/INT_MIN
David Majnemer [Wed, 2 Jul 2014 06:07:09 +0000 (06:07 +0000)]
InstCombine: Don't turn -(x/INT_MIN) -> x/INT_MIN

It is not safe to negate the smallest signed integer, doing so yields
the same number back.

This fixes PR20186.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212164 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd range for-loop iterator adapter for cases in SwitchInst.
Owen Anderson [Wed, 2 Jul 2014 05:32:13 +0000 (05:32 +0000)]
Add range for-loop iterator adapter for cases in SwitchInst.

Patch by Marcello Maggioni, reviewed by Reid Kleckner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212163 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoaarch64: support target-specific .req assembler directive
Saleem Abdulrasool [Wed, 2 Jul 2014 04:50:23 +0000 (04:50 +0000)]
aarch64: support target-specific .req assembler directive

Based on the support for .req on ARM. The aarch64 variant has to keep track if
the alias register was a vector register (v0-31) or a general purpose or
VFP/Advanced SIMD ([bhsdq]0-31) register.

Patch by Janne Grunau!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212161 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[cleanup] Remove dead 'break;' statements that I meant to nuke in
Chandler Carruth [Wed, 2 Jul 2014 04:39:34 +0000 (04:39 +0000)]
[cleanup] Remove dead 'break;' statements that I meant to nuke in
r212158 but missed.

Thanks to Craig for spotting the goof!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212159 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[cleanup] Hoist the promotion dispatch logic into the promote function
Chandler Carruth [Wed, 2 Jul 2014 03:07:15 +0000 (03:07 +0000)]
[cleanup] Hoist the promotion dispatch logic into the promote function
so that we can use return to express it more cleanly and avoid so many
nested switch statements.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212158 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[cleanup] Nuke the 'VectorOp' bit of the promote method names.
Chandler Carruth [Wed, 2 Jul 2014 03:07:11 +0000 (03:07 +0000)]
[cleanup] Nuke the 'VectorOp' bit of the promote method names.

This doesn't add any information for methods in the VectorLegalizer
class that clearly take SDAG operations to legalize.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212157 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] Clean up and modernize the doxygen and API comments for the vector
Chandler Carruth [Wed, 2 Jul 2014 02:16:57 +0000 (02:16 +0000)]
[x86] Clean up and modernize the doxygen and API comments for the vector
operation legalization code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212155 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoBreak out subtarget initialization that dependent variables need into
Eric Christopher [Wed, 2 Jul 2014 01:14:43 +0000 (01:14 +0000)]
Break out subtarget initialization that dependent variables need into
a separate function and clean up calling convention for helper function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212153 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUnify these two lines.
Eric Christopher [Wed, 2 Jul 2014 01:02:28 +0000 (01:02 +0000)]
Unify these two lines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212152 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove MipsJITInfo to the subtarget rather than the target machine.
Eric Christopher [Wed, 2 Jul 2014 00:54:12 +0000 (00:54 +0000)]
Move MipsJITInfo to the subtarget rather than the target machine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212151 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove unnecessary include.
Eric Christopher [Wed, 2 Jul 2014 00:54:10 +0000 (00:54 +0000)]
Remove unnecessary include.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212150 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove the cached InstrItineraryData on the TargetMachine, it's unnecessary.
Eric Christopher [Wed, 2 Jul 2014 00:54:07 +0000 (00:54 +0000)]
Remove the cached InstrItineraryData on the TargetMachine, it's unnecessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212149 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove the recommendation against using std::function
Reid Kleckner [Wed, 2 Jul 2014 00:42:07 +0000 (00:42 +0000)]
Remove the recommendation against using std::function

Clang-cl supports MSVC-style RTTI now, and we can even compile
typeid(...) with /GR-.  Just don't instantiate std::function with a
polymorphic type, or bad things will happen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212148 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove the subtarget dependent features from XCoreTargetMachine
Eric Christopher [Wed, 2 Jul 2014 00:10:09 +0000 (00:10 +0000)]
Move the subtarget dependent features from XCoreTargetMachine
down to the subtarget.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212147 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMake XCoreSelectionDAGInfo take a DataLayout since it only needs
Eric Christopher [Wed, 2 Jul 2014 00:10:05 +0000 (00:10 +0000)]
Make XCoreSelectionDAGInfo take a DataLayout since it only needs
that information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212146 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAlso run clang-format on llvm-nm.cpp to tidy things up. No functional changes.
Kevin Enderby [Tue, 1 Jul 2014 22:44:51 +0000 (22:44 +0000)]
Also run clang-format on llvm-nm.cpp to tidy things up. No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212143 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRun clang-format on llvm-size.cpp to tidy things up. No functional changes.
Kevin Enderby [Tue, 1 Jul 2014 22:26:31 +0000 (22:26 +0000)]
Run clang-format on llvm-size.cpp to tidy things up. No functional changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212141 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[FastISel] Factor out stackmap intrinsic selection code into a dedicated helper metho...
Juergen Ributzka [Tue, 1 Jul 2014 22:25:49 +0000 (22:25 +0000)]
[FastISel] Factor out stackmap intrinsic selection code into a dedicated helper method. NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212140 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoX86: remove atomic instructions *after* we've iterated through them.
Tim Northover [Tue, 1 Jul 2014 22:10:30 +0000 (22:10 +0000)]
X86: remove atomic instructions *after* we've iterated through them.

Otherwise they get freed and the implicit "isa<XYZ>" tests following
turn out badly (at least under sanitizers).

Also corrects the ordering of unordered atomic stores.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212136 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[DAG] Pass the argument list to the CallLoweringInfo via move semantics. NFCI.
Juergen Ributzka [Tue, 1 Jul 2014 22:01:54 +0000 (22:01 +0000)]
[DAG] Pass the argument list to the CallLoweringInfo via move semantics. NFCI.

The argument list vector is never used after it has been passed to the
CallLoweringInfo and moving it to the CallLoweringInfo is cleaner and
pretty much as cheap as keeping a pointer to it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212135 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoX86: delegate expanding atomic libcalls to generic code.
Tim Northover [Tue, 1 Jul 2014 21:44:59 +0000 (21:44 +0000)]
X86: delegate expanding atomic libcalls to generic code.

On targets without cmpxchg16b or cmpxchg8b, the borderline atomic
operations were slipping through the gaps.

X86AtomicExpand.cpp was delegating to ISelLowering. Generic
ISelLowering was delegating to X86ISelLowering and X86ISelLowering was
asserting. The correct behaviour is to expand to a libcall, preferably
in generic ISelLowering.

This can be achieved by X86ISelLowering deciding it doesn't want the
faff after all.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212134 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoOptimize InstCombine stack memory consumption
Reid Kleckner [Tue, 1 Jul 2014 21:36:20 +0000 (21:36 +0000)]
Optimize InstCombine stack memory consumption

This patch reduces the stack memory consumption of the InstCombine
function "isOnlyCopiedFromConstantGlobal() ", that in certain conditions
could overflow the stack because of excessive recursiveness.

For example, in a case like this:

%0 = alloca [50025 x i32], align 4
%1 = getelementptr inbounds [50025 x i32]* %0, i64 0, i64 0
store i32 0,                         i32* %1
%2 = getelementptr inbounds          i32* %1, i64 1
store i32 1,                         i32* %2
%3 = getelementptr inbounds          i32* %2, i64 1
store i32 2,                         i32* %3
%4 = getelementptr inbounds          i32* %3, i64 1
store i32 3,                         i32* %4
%5 = getelementptr inbounds          i32* %4, i64 1
store i32 4,                         i32* %5
%6 = getelementptr inbounds          i32* %5, i64 1
store i32 5,                         i32* %6

This piece of code crashes llvm when trying to apply instcombine on
desktop. On embedded devices this could happen with a much lower limit
of recursiveness.  Some instructions (getelementptr and bitcasts) make
the function recursively call itself on their uses, which is what makes
the example above consume so much stack (it becomes a recursive
depth-first tree visit with a very big depth).

The patch changes the algorithm to be semantically equivalent, but
iterative instead of recursive and the visiting order to be from a
depth-first visit to a breadth-first visit (visit all the instructions
of the current level before the ones of the next one).

Now if a lot of memory is required a heap allocation is done instead of
the the stack allocation, avoiding the possible crash.

Reviewed By: rnk

Differential Revision: http://reviews.llvm.org/D4355

Patch by Marcello Maggioni!  We don't generally commit large stress test
that look for out of memory conditions, so I didn't request that one be
added to the patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212133 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove remaining LLVM_ENABLE_DUMP conditionals out of the headers
Alp Toker [Tue, 1 Jul 2014 21:19:13 +0000 (21:19 +0000)]
Move remaining LLVM_ENABLE_DUMP conditionals out of the headers

This macro is sometimes defined manually but isn't (and doesn't need to be) in
llvm-config.h so shouldn't appear in the headers, likewise NDEBUG.

Instead switch them over to LLVM_DUMP_METHOD on the definitions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212130 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDebugInfo: Keep track of subprograms who's arguments have been promoted.
David Blaikie [Tue, 1 Jul 2014 21:13:37 +0000 (21:13 +0000)]
DebugInfo: Keep track of subprograms who's arguments have been promoted.

Matching behavior with DeadArgumentElimination (and leveraging some
now-common infrastructure), keep track of the function from debug info
metadata if arguments are promoted.

This may produce interesting debug info - since the arguments may be
missing or of different types... but at least backtraces, inlining, etc,
will be correct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212128 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove the subtarget dependent features from SystemZTargetMachine
Eric Christopher [Tue, 1 Jul 2014 20:19:02 +0000 (20:19 +0000)]
Move the subtarget dependent features from SystemZTargetMachine
down to the subtarget. Add an initialization routine to assist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212124 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove the use and initialization of the target machine and subtarget
Eric Christopher [Tue, 1 Jul 2014 20:18:59 +0000 (20:18 +0000)]
Remove the use and initialization of the target machine and subtarget
from SystemZFrameLowering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212123 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDebugInfo: Provide a utility for building a mapping from llvm::Function*s to llvm...
David Blaikie [Tue, 1 Jul 2014 20:05:26 +0000 (20:05 +0000)]
DebugInfo: Provide a utility for building a mapping from llvm::Function*s to llvm::DISubprograms

Update DeadArgumentElimintation to use this, with the intent of reusing
the functionality for ArgumentPromotion as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212122 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAArch64: fix comment typo
Tim Northover [Tue, 1 Jul 2014 19:47:09 +0000 (19:47 +0000)]
AArch64: fix comment typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212120 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoX86: expand atomics in IR instead of as MachineInstrs.
Tim Northover [Tue, 1 Jul 2014 18:53:31 +0000 (18:53 +0000)]
X86: expand atomics in IR instead of as MachineInstrs.

The logic for expanding atomics that aren't natively supported in
terms of cmpxchg loops is much simpler to express at the IR level. It
also allows the normal optimisations and CodeGen improvements to help
out with atomics, instead of using a limited set of possible


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212119 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[docs] Fix a mangled sentence.
Sean Silva [Tue, 1 Jul 2014 18:22:32 +0000 (18:22 +0000)]
[docs] Fix a mangled sentence.

Fixes PR20169

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212116 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[docs] Remove stray HTML tag.
Sean Silva [Tue, 1 Jul 2014 18:15:00 +0000 (18:15 +0000)]
[docs] Remove stray HTML tag.

Fixes PR20167

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212115 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] AVX512: Allow writemasks with vpcmp
Adam Nemet [Tue, 1 Jul 2014 18:03:45 +0000 (18:03 +0000)]
[X86] AVX512: Allow writemasks with vpcmp

For now I only updated the _alt variants.  The main variants are used by
codegen and that will need a bit more work to trigger.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212114 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86] AVX512: Factor generating the AsmString into avx512_icmp_cc
Adam Nemet [Tue, 1 Jul 2014 18:03:43 +0000 (18:03 +0000)]
[X86] AVX512: Factor generating the AsmString into avx512_icmp_cc

Adding a writemask variant would require a third asm string to be passed to
the template.  Generate the AsmString in the template instead.

No change in X86.td.expanded.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212113 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "MachineScheduler: better book-keeping for asserts."
Chad Rosier [Tue, 1 Jul 2014 17:23:11 +0000 (17:23 +0000)]
Revert "MachineScheduler: better book-keeping for asserts."

This reverts commit r212088, which is causing a number of spec
failures.  Will provide reduced test cases shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212109 91177308-0d34-0410-b5e6-96231b3b80d8