platform/upstream/llvm.git
5 years ago[x86] add helper for creating a half-width shuffle; NFC
Sanjay Patel [Sat, 26 Jan 2019 16:20:22 +0000 (16:20 +0000)]
[x86] add helper for creating a half-width shuffle; NFC

This reduces a bit of duplication between the combining and
lowering places that use it, but the primary motivation is
to make it easier to rearrange the lowering logic and solve
PR40434:
https://bugs.llvm.org/show_bug.cgi?id=40434

llvm-svn: 352280

5 years ago[analyzer][NFC] Supply CheckerRegistry with AnalyzerOptions
Kristof Umann [Sat, 26 Jan 2019 15:59:21 +0000 (15:59 +0000)]
[analyzer][NFC] Supply CheckerRegistry with AnalyzerOptions

Since pretty much all methods of CheckerRegistry has AnalyzerOptions as an
argument, it makes sense to just simply require it in it's constructor.

Differential Revision: https://reviews.llvm.org/D56988

llvm-svn: 352279

5 years ago[analyzer] Split unix.API up to UnixAPIMisuseChecker and UnixAPIPortabilityChecker
Kristof Umann [Sat, 26 Jan 2019 15:56:40 +0000 (15:56 +0000)]
[analyzer] Split unix.API up to UnixAPIMisuseChecker and UnixAPIPortabilityChecker

The actual implementation of unix.API features a dual-checker: two checkers in
one, even though they don't even interact at all. Split them up, as this is a
problem for establishing dependencies.

I added no new code at all, just merely moved it around.

Since the plist files change (and that's a benefit!) this patch isn't NFC.

Differential Revision: https://reviews.llvm.org/D55425

llvm-svn: 352278

5 years ago[analyzer] Supply all checkers with a shouldRegister function
Kristof Umann [Sat, 26 Jan 2019 14:23:08 +0000 (14:23 +0000)]
[analyzer] Supply all checkers with a shouldRegister function

Introduce the boolean ento::shouldRegister##CHECKERNAME(const LangOptions &LO)
function very similarly to ento::register##CHECKERNAME. This will force every
checker to implement this function, but maybe it isn't that bad: I saw a lot of
ObjC or C++ specific checkers that should probably not register themselves based
on some LangOptions (mine too), but they do anyways.

A big benefit of this is that all registry functions now register their checker,
once it is called, registration is guaranteed.

This patch is a part of a greater effort to reinvent checker registration, more
info here: D54438#1315953

Differential Revision: https://reviews.llvm.org/D55424

llvm-svn: 352277

5 years ago[AST] Pack GenericSelectionExpr
Bruno Ricci [Sat, 26 Jan 2019 14:15:10 +0000 (14:15 +0000)]
[AST] Pack GenericSelectionExpr

Store the controlling expression, the association expressions and the
corresponding TypeSourceInfos as trailing objects.

Additionally use the bit-fields of Stmt to store one SourceLocation,
saving one additional pointer. This saves 3 pointers in total per
GenericSelectionExpr.

Differential Revision: https://reviews.llvm.org/D57104

Reviewed By: aaron.ballman

Reviewers: aaron.ballman, steveire
llvm-svn: 352276

5 years ago[AST][NFC] Various cleanups to GenericSelectionExpr
Bruno Ricci [Sat, 26 Jan 2019 13:58:15 +0000 (13:58 +0000)]
[AST][NFC] Various cleanups to GenericSelectionExpr

Various cleanups to GenericSelectionExpr factored out of D57104. In particular:

1. Move the friend declaration to the top.
2. Introduce a constant ResultDependentIndex instead of the magic "-1".
3. clang-format
4. Group the member function together so that they can be removed as one block
   by D57106.

NFC.

Differential Revision: https://reviews.llvm.org/D57238

Reviewed By: aaron.ballman

llvm-svn: 352275

5 years ago[X86] Add test case from PR34292
Simon Pilgrim [Sat, 26 Jan 2019 13:56:53 +0000 (13:56 +0000)]
[X86] Add test case from PR34292

llvm-svn: 352274

5 years ago[llvm-mca][X86] Add some missing DQI tests
Simon Pilgrim [Sat, 26 Jan 2019 13:00:46 +0000 (13:00 +0000)]
[llvm-mca][X86] Add some missing DQI tests

Match more of the coverage of test\CodeGen\X86\avx512-schedule.ll as discussed on D57244

llvm-svn: 352273

5 years ago[X86] Add 'less_than_ideal' followup test case from PR24545
Simon Pilgrim [Sat, 26 Jan 2019 12:51:52 +0000 (12:51 +0000)]
[X86] Add 'less_than_ideal' followup test case from PR24545

llvm-svn: 352272

5 years ago[X86] Autoupgrade some of the intrinsics used by stack folding tests that have been...
Craig Topper [Sat, 26 Jan 2019 06:27:04 +0000 (06:27 +0000)]
[X86] Autoupgrade some of the intrinsics used by stack folding tests that have been previously removed.

llvm-svn: 352271

5 years ago[X86] Remove and autoupgrade vpconflict intrinsics that take a mask and passthru...
Craig Topper [Sat, 26 Jan 2019 06:27:01 +0000 (06:27 +0000)]
[X86] Remove and autoupgrade vpconflict intrinsics that take a mask and passthru argument.

We have unmasked versions as of r352172

llvm-svn: 352270

5 years agoRevert r352255 "[SelectionDAG][X86] Don't use SEXTLOAD for promoting masked loads...
Craig Topper [Sat, 26 Jan 2019 02:44:58 +0000 (02:44 +0000)]
Revert r352255 "[SelectionDAG][X86] Don't use SEXTLOAD for promoting masked loads in the type legalizer"

This might be breaking an lldb windows buildbot.

llvm-svn: 352268

5 years ago[X86] Custom codegen 512-bit cvt(u)qq2tops, cvt(u)qqtopd, and cvt(u)dqtops intrinsics.
Craig Topper [Sat, 26 Jan 2019 02:42:01 +0000 (02:42 +0000)]
[X86] Custom codegen 512-bit cvt(u)qq2tops, cvt(u)qqtopd, and cvt(u)dqtops intrinsics.

Summary:
The 512-bit cvt(u)qq2tops, cvt(u)qqtopd, and cvt(u)dqtops intrinsics all have the possibility of taking an explicit rounding mode argument. If the rounding mode is CUR_DIRECTION we'd like to emit a sitofp/uitofp instruction and a select like we do for 256-bit intrinsics.

For cvt(u)qqtopd and cvt(u)dqtops we do this when the form of the software intrinsics that doesn't take a rounding mode argument is used. This is done by using convertvector in the header with the select builtin. But if the explicit rounding mode form of the intrinsic is used and CUR_DIRECTION is passed, we don't do this. We shouldn't have this inconsistency.

For cvt(u)qqtops nothing is done because we can't use the select builtin in the header without avx512vl. So we need to use custom codegen for this.

Even when the rounding mode isn't CUR_DIRECTION we should also use select in IR for consistency. And it will remove another scalar integer mask from our intrinsics.

To accomplish all of these goals I've taken a slightly unusual approach. I've added two new X86 specific intrinsics for sitofp/uitofp with rounding. These intrinsics are variadic on the input and output type so we only need 2 instead of 6. This avoids the need for a switch to map them in CGBuiltin.cpp. We just need to check signed vs unsigned. I believe other targets also use variadic intrinsics like this.

So if the rounding mode is CUR_DIRECTION we'll use an sitofp/uitofp instruction. Otherwise we'll use one of the new intrinsics. After that we'll emit a select instruction if needed.

Reviewers: RKSimon, spatel

Reviewed By: RKSimon

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D56998

llvm-svn: 352267

5 years ago[X86] Remove GCCBuiltins from 512-bit cvt(u)qqtops, cvt(u)qqtopd, and cvt(u)dqtops...
Craig Topper [Sat, 26 Jan 2019 02:41:54 +0000 (02:41 +0000)]
[X86] Remove GCCBuiltins from 512-bit cvt(u)qqtops, cvt(u)qqtopd, and cvt(u)dqtops intrinsics. Add new variadic uitofp/sitofp with rounding mode intrinsics.

Summary: See clang patch D56998 for a full description.

Reviewers: RKSimon, spatel

Reviewed By: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56999

llvm-svn: 352266

5 years ago[libFuzzer] add CompressedTest.cpp, a real-life-ish test for a custom mutator
Kostya Serebryany [Sat, 26 Jan 2019 02:38:56 +0000 (02:38 +0000)]
[libFuzzer] add CompressedTest.cpp, a real-life-ish test for a custom mutator

llvm-svn: 352265

5 years agoGlobalISel: Fix address space limit in LLT
Matt Arsenault [Sat, 26 Jan 2019 01:42:13 +0000 (01:42 +0000)]
GlobalISel: Fix address space limit in LLT

The IR enforced limit for the address space is 24-bits, but LLT was
only using 23-bits. Additionally, the argument to the constructor was
truncating to 16-bits.

A similar problem still exists for the number of vector elements. The
IR enforces no limit, so if you try to use a vector with > 65535
elements the IRTranslator asserts in the LLT constructor.

llvm-svn: 352264

5 years ago[libFuzzer] print uncovered functions when doing -print_coverage=1
Kostya Serebryany [Sat, 26 Jan 2019 01:33:09 +0000 (01:33 +0000)]
[libFuzzer] print uncovered functions when doing -print_coverage=1

llvm-svn: 352263

5 years ago[WebAssembly][NFC] Group SIMD-related ISel configuration
Thomas Lively [Sat, 26 Jan 2019 01:25:37 +0000 (01:25 +0000)]
[WebAssembly][NFC] Group SIMD-related ISel configuration

Reviewers: aheejin

Subscribers: dschuff, sbc100, jgravelle-google, hiraditya, sunfish

Differential Revision: https://reviews.llvm.org/D57263

llvm-svn: 352262

5 years ago[PowerPC] Update Vector Costs for P9
Nemanja Ivanovic [Sat, 26 Jan 2019 01:18:48 +0000 (01:18 +0000)]
[PowerPC] Update Vector Costs for P9

For the power9 CPU, vector operations consume a pair of execution units rather
than one execution unit like a scalar operation. Update the target transform
cost functions to reflect the higher cost of vector operations when targeting
Power9.

Patch by RolandF.

Differential revision: https://reviews.llvm.org/D55461

llvm-svn: 352261

5 years ago[X86] Add DAG combine to merge vzext_movl with the various fp<->int conversion operat...
Craig Topper [Sat, 26 Jan 2019 01:17:09 +0000 (01:17 +0000)]
[X86] Add DAG combine to merge vzext_movl with the various fp<->int conversion operations that only write the lower 64-bits of an xmm register and zero the rest.

Summary: We have isel patterns for this, but we're missing some load patterns and all broadcast patterns. A DAG combine seems like a better fit for this.

Reviewers: RKSimon, spatel

Reviewed By: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D56971

llvm-svn: 352260

5 years ago[lldb] Update shebang python2 -> python
Jonas Devlieghere [Sat, 26 Jan 2019 01:05:02 +0000 (01:05 +0000)]
[lldb] Update shebang python2 -> python

llvm-svn: 352259

5 years ago[llvm-nm] Print out N_COLD_FUNC as "cold func"
Vedant Kumar [Sat, 26 Jan 2019 00:33:15 +0000 (00:33 +0000)]
[llvm-nm] Print out N_COLD_FUNC as "cold func"

Per post-commit feedback from Mike, have llvm-nm print out this symbol
attribute as "[cold func]".

llvm-svn: 352258

5 years agoRemove dead declaration.
Rui Ueyama [Sat, 26 Jan 2019 00:31:49 +0000 (00:31 +0000)]
Remove dead declaration.

llvm-svn: 352257

5 years ago[NVPTX] Some nvvm.read.ptx.sreg intrinsics should have IntrInaccessibleMemOnly attribute.
Artem Belevich [Sat, 26 Jan 2019 00:28:32 +0000 (00:28 +0000)]
[NVPTX] Some nvvm.read.ptx.sreg intrinsics should have IntrInaccessibleMemOnly attribute.

These intrinsics may return different values every time they are called
and should not be CSE'd. IntrInaccessibleMemOnly appears to be the right
attribute to model this behavior.

Differential Revision: https://reviews.llvm.org/D57259

llvm-svn: 352256

5 years ago[SelectionDAG][X86] Don't use SEXTLOAD for promoting masked loads in the type legalizer
Craig Topper [Sat, 26 Jan 2019 00:26:37 +0000 (00:26 +0000)]
[SelectionDAG][X86] Don't use SEXTLOAD for promoting masked loads in the type legalizer

Summary:
I'm not sure why we were using SEXTLOAD. EXTLOAD seems more appropriate since we don't care about the upper bits.

This patch changes this and then modifies the X86 post legalization combine to emit a extending shuffle instead of a sign_extend_vector_inreg. Could maybe use an any_extend_vector_inreg, but I just did what we already do in LowerLoad. I think we can actually get rid of this code entirely if we switch to -x86-experimental-vector-widening-legalization.

On AVX512 targets I think we might be able to use a masked vpmovzx and not have to expand this at all.

Reviewers: RKSimon, spatel

Reviewed By: RKSimon

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D57186

llvm-svn: 352255

5 years agolld-link: Store comdat selection in SectionChunk, reject more invalid associated...
Nico Weber [Sat, 26 Jan 2019 00:14:52 +0000 (00:14 +0000)]
lld-link: Store comdat selection in SectionChunk, reject more invalid associated comdats

I need the comdat selection for PR40094. To keep the patch for that smaller,
I'm adding it here, and as a first application I'm using it to reject
associative comdats referring to earlier associative comdats. Depends on
D56929; together with that all associative comdats referring to other
associative comdats are now rejected.

Differential Revision: https://reviews.llvm.org/D56931

llvm-svn: 352254

5 years agoAttempt to fix build on Windows with LLVM_ENABLE_PIC=OFF
Nico Weber [Fri, 25 Jan 2019 23:37:57 +0000 (23:37 +0000)]
Attempt to fix build on Windows with LLVM_ENABLE_PIC=OFF

libclang can be built in shared or static mode. On Windows, with
LLVM_ENABLE_PIC=OFF, it was built in neither mode, leading to clients of
libclang (c-index-test, c-arcmt-test) failing to link with it set.

Since PIC isn't really a thing on Windows, build libclang in shared mode when
LLVM_ENABLE_PIC=OFF there. This is also somewhat symmetric with the existing
ENABLE_STATIC a few lines down.

Differential Revision: https://reviews.llvm.org/D57258

llvm-svn: 352253

5 years agoFixed frontend clang tests in windows read-only container
Stella Stamenova [Fri, 25 Jan 2019 23:03:12 +0000 (23:03 +0000)]
Fixed frontend clang tests in windows read-only container

Summary:
When mounting LLVM source into a windows container in read-only mode, certain tests fail. Ideally, we want all these tests to pass so that developers can mount the same source folder into multiple (windows) containers simultaneously, allowing them to build/test the same source code using various different configurations simultaneously.

**Fix**: I've found that when attempting to open a file for writing on windows, if you don't have the correct permissions (trying to open a file for writing in a read-only folder), you get [Access is denied](https://support.microsoft.com/en-us/help/2623670/access-denied-or-other-errors-when-you-access-or-work-with-files-and-f). In llvm, we map this error message to a linux based error, see: https://github.com/llvm-mirror/llvm/blob/master/lib/Support/ErrorHandling.cpp

This is why we see "Permission denied" in our output as opposed to the expected "No such file or directory", thus causing the tests to fail.

I've changed the test locally to instead point to the root drive so that they can successfully bypass the Access is denied error when LLVM is mounted in as a read-only directory. This way, the test operate exactly the same, but we can get around the windows-complications of what error to expect in a read-only directory.

Patch By: justice_adams

Reviewers: rsmith, zturner, MatzeB, stella.stamenova

Reviewed By: stella.stamenova

Subscribers: ormris, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D50563

llvm-svn: 352252

5 years agoBuild LLVM-C.dll by default on windows and enable in release package
Hans Wennborg [Fri, 25 Jan 2019 22:45:17 +0000 (22:45 +0000)]
Build LLVM-C.dll by default on windows and enable in release package

With the fixes to the building of LLVM-C.dll in D56781 this should now
be safe to land. This will greatly simplify dealing with LLVM for people
that just want to use the C API on windows. This is a follow up from
D35077.

Patch by Jakob Bornecrantz!

Differential revision: https://reviews.llvm.org/D56774

llvm-svn: 352250

5 years agoSimplify LangOpts initalization in ClangExpressionParser [NFC]
Raphael Isemann [Fri, 25 Jan 2019 22:41:31 +0000 (22:41 +0000)]
Simplify LangOpts initalization in ClangExpressionParser [NFC]

Reviewers: davide

Reviewed By: davide

Subscribers: shafik, davide, lldb-commits

Differential Revision: https://reviews.llvm.org/D57222

llvm-svn: 352249

5 years ago [NFC] Test commit : fix typo.
Alexey Lapshin [Fri, 25 Jan 2019 21:59:53 +0000 (21:59 +0000)]
  [NFC] Test commit : fix typo.

llvm-svn: 352248

5 years ago[RISCV] Add target DAG combine for bitcast fabs/fneg on RV32FD
Alex Bradbury [Fri, 25 Jan 2019 21:55:48 +0000 (21:55 +0000)]
[RISCV] Add target DAG combine for bitcast fabs/fneg on RV32FD

DAGCombiner::visitBITCAST will perform:
 fold (bitconvert (fneg x)) -> (xor (bitconvert x), signbit)
 fold (bitconvert (fabs x)) -> (and (bitconvert x), (not signbit))

As shown in double-bitmanip-dagcombines.ll, this can be advantageous. But
RV32FD doesn't use bitcast directly (as i64 isn't a legal type), and instead
uses RISCVISD::SplitF64. This patch adds an equivalent DAG combine for
SplitF64.

llvm-svn: 352247

5 years ago[llvm] Opt-in flag for X86DiscriminateMemOps
Mircea Trofin [Fri, 25 Jan 2019 21:49:54 +0000 (21:49 +0000)]
[llvm] Opt-in flag for X86DiscriminateMemOps

Summary:
Currently, if an instruction with a memory operand has no debug information,
X86DiscriminateMemOps will generate one based on the first line of the
enclosing function, or the last seen debug info.

This may cause confusion in certain debugging scenarios. The long term
approach would be to use the line number '0' in such cases, however, that
brings in challenges: the base discriminator value range is limited
(4096 values).

For the short term, adding an opt-in flag for this feature.

See bug 40319 (https://bugs.llvm.org/show_bug.cgi?id=40319)

Reviewers: dblaikie, jmorse, gbedwell

Reviewed By: dblaikie

Subscribers: aprantl, eraman, hiraditya

Differential Revision: https://reviews.llvm.org/D57257

llvm-svn: 352246

5 years ago[libunwind] Use placement new to avoid dependency C++ library
Petr Hosek [Fri, 25 Jan 2019 21:39:46 +0000 (21:39 +0000)]
[libunwind] Use placement new to avoid dependency C++ library

The rest of libunwind already uses placement new, these are the only
places where non-placement new is being used introducing undesirable
C++ library dependency.

Differential Revision: https://reviews.llvm.org/D57251

llvm-svn: 352245

5 years ago[GlobalISel][AArch64][NFC] Fix incorrect comment in selectUnmergeValues
Jessica Paquette [Fri, 25 Jan 2019 21:28:27 +0000 (21:28 +0000)]
[GlobalISel][AArch64][NFC] Fix incorrect comment in selectUnmergeValues

s/scalar/vector/

llvm-svn: 352243

5 years agoSimplify. NFC.
Rui Ueyama [Fri, 25 Jan 2019 21:25:25 +0000 (21:25 +0000)]
Simplify. NFC.

llvm-svn: 352242

5 years agoRevert rL352238.
Alina Sbirlea [Fri, 25 Jan 2019 21:12:08 +0000 (21:12 +0000)]
Revert rL352238.

llvm-svn: 352241

5 years ago[RISCV] Add another potential combine to {double,float}-bitmanip-dagcombines.ll
Alex Bradbury [Fri, 25 Jan 2019 21:06:47 +0000 (21:06 +0000)]
[RISCV] Add another potential combine to {double,float}-bitmanip-dagcombines.ll

(fcopysign a, (fneg b)) will be expanded to bitwise operations by
DAGTypeLegalizer::SoftenFloatRes_FCOPYSIGN if the floating point type isn't
legal. Arguably it might be worth doing a combine even if it is legal.

llvm-svn: 352240

5 years ago[Sema] Improve a -Warray-bounds diagnostic
Erik Pilkington [Fri, 25 Jan 2019 20:52:45 +0000 (20:52 +0000)]
[Sema] Improve a -Warray-bounds diagnostic

Fix a bug where we would compare array sizes with incompatible
element types, and look through explicit casts.

rdar://44800168

Differential revision: https://reviews.llvm.org/D57064

llvm-svn: 352239

5 years ago[WarnMissedTransforms] Set default to 1.
Alina Sbirlea [Fri, 25 Jan 2019 20:51:55 +0000 (20:51 +0000)]
[WarnMissedTransforms] Set default to 1.

Summary:
Set default value for retrieved attributes to 1, since the check is against 1.
Eliminates the warning noise generated when the attributes are not present.

Reviewers: sanjoy

Subscribers: jlebar, llvm-commits

Differential Revision: https://reviews.llvm.org/D57253

llvm-svn: 352238

5 years agoReapply: [RISCV] Set isAsCheapAsAMove for ADDI, ORI, XORI, LUI
Ana Pazos [Fri, 25 Jan 2019 20:22:49 +0000 (20:22 +0000)]
Reapply: [RISCV] Set isAsCheapAsAMove for ADDI, ORI, XORI, LUI

This reapplies commit r352010 with RISC-V test fixes.

llvm-svn: 352237

5 years ago[MBP] Don't move bottom block before header if it can't reduce taken branches
Guozhi Wei [Fri, 25 Jan 2019 19:45:13 +0000 (19:45 +0000)]
[MBP] Don't move bottom block before header if it can't reduce taken branches

If bottom of block BB has only one successor OldTop, in most cases it is profitable to move it before OldTop, except the following case:

-->OldTop<-
|    .    |
|    .    |
|    .    |
---Pred   |
     |    |
    BB-----

Move BB before OldTop can't reduce the number of taken branches, this patch detects this case and prevent the moving.

Differential Revision: https://reviews.llvm.org/D57067

llvm-svn: 352236

5 years ago[CMake] Use llvm-tblgen from NATIVE LLVM build when cross-compiling
Alex Langford [Fri, 25 Jan 2019 19:38:21 +0000 (19:38 +0000)]
[CMake] Use llvm-tblgen from NATIVE LLVM build when cross-compiling

Summary:
When cross-compiling LLDB, we want to use llvm-tblgen built for the
host, not the target.

Reviewers: compnerd, sgraenitz

Subscribers: mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D57194

llvm-svn: 352235

5 years agoFix XRayTest link on FreeBSD (and likely NetBSD too)
Dimitry Andric [Fri, 25 Jan 2019 19:36:47 +0000 (19:36 +0000)]
Fix XRayTest link on FreeBSD (and likely NetBSD too)

Summary:
As reported on llvm-testers, during 8.0.0-rc1 testing I got errors while
building of `XRayTest`, during `check-all`:

```
[100%] Generating XRayTest-x86_64-Test
/home/dim/llvm/8.0.0/rc1/Phase3/Release/llvmCore-8.0.0-rc1.obj/./lib/libLLVMSupport.a(Signals.cpp.o): In function `llvm::sys::PrintStackTrace(llvm::raw_ostream&)':
Signals.cpp:(.text._ZN4llvm3sys15PrintStackTraceERNS_11raw_ostreamE+0x24): undefined reference to `backtrace'
Signals.cpp:(.text._ZN4llvm3sys15PrintStackTraceERNS_11raw_ostreamE+0x254): undefined reference to `llvm::itaniumDemangle(char const*, char*, unsigned long*, int*)'
clang-8: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[3]: *** [projects/compiler-rt/lib/xray/tests/unit/CMakeFiles/TXRayTest-x86_64-Test.dir/build.make:73: projects/compiler-rt/lib/xray/tests/unit/XRayTest-x86_64-Test] Error 1
gmake[3]: Target 'projects/compiler-rt/lib/xray/tests/unit/CMakeFiles/TXRayTest-x86_64-Test.dir/build' not remade because of errors.
gmake[2]: *** [CMakeFiles/Makefile2:33513: projects/compiler-rt/lib/xray/tests/unit/CMakeFiles/TXRayTest-x86_64-Test.dir/all] Error 2
gmake[2]: Target 'CMakeFiles/check-all.dir/all' not remade because of errors.
gmake[1]: *** [CMakeFiles/Makefile2:737: CMakeFiles/check-all.dir/rule] Error 2
gmake[1]: Target 'check-all' not remade because of errors.
gmake: *** [Makefile:277: check-all] Error 2
[Release Phase3] check-all failed
```

This is because the `backtrace` function requires `-lexecinfo` on BSD
platforms.  To fix this, detect the `execinfo` library in
`cmake/config-ix.cmake`, and add it to the unit test link flags.

Additionally, since the code in `sys::PrintStackTrace` makes use of
`itaniumDemangle`, also add `-lLLVMDemangle`.  (Note that this is more
of a general problem with libLLVMSupport, but I'm looking for a quick
fix now so it can be merged to the 8.0 branch.)

Reviewers: dberris, hans, mgorny, samsonov

Reviewed By: dberris

Subscribers: krytarowski, delcypher, erik.pilkington, #sanitizers, emaste, llvm-commits

Differential Revision: https://reviews.llvm.org/D57181

llvm-svn: 352234

5 years ago[CodeGen] Implement isTriviallyRecursive with StmtVisitor instead of RecursiveASTVisitor
Reid Kleckner [Fri, 25 Jan 2019 19:18:40 +0000 (19:18 +0000)]
[CodeGen] Implement isTriviallyRecursive with StmtVisitor instead of RecursiveASTVisitor

This code doesn't need to traverse types, lambdas, template arguments,
etc to detect trivial recursion. We can do a basic statement traversal
instead. This reduces the time spent compiling CodeGenModule.cpp, the
object file size (mostly reduced debug info), and the final executable
size by a small amount. I measured the exe mostly to check how much of
the overhead is from debug info, object file section headers, etc, vs
actual code.

metric   | before | after | diff
time (s) | 47.4   | 38.5  | -8.9
obj (kb) | 12888  | 12012 | -876
exe (kb) | 86072  | 85996 | -76

llvm-svn: 352232

5 years ago[clang-tidy] fix unit tests for dropped _Float16 support in X86
Jonas Toth [Fri, 25 Jan 2019 19:05:12 +0000 (19:05 +0000)]
[clang-tidy] fix unit tests for dropped _Float16 support in X86

Summary:
Because _Float16 was disabled for X86 targets the unit-tests started failing.
Extract the pieces for _Float16 and run theses tests under AArch64.

Reviewers: aaron.ballman, erichkeane, lebedev.ri

Reviewed By: erichkeane

Subscribers: javed.absar, xazax.hun, kristof.beyls, cfe-commits

Differential Revision: https://reviews.llvm.org/D57249

llvm-svn: 352231

5 years ago[X86] Combine masked store and truncate into masked truncating stores.
Craig Topper [Fri, 25 Jan 2019 18:37:36 +0000 (18:37 +0000)]
[X86] Combine masked store and truncate into masked truncating stores.

We also need to combine to masked truncating with saturation stores, but I'm leaving that for a future patch.

This does regress some tests that used truncate wtih saturation followed by a masked store. Those now use a truncating store and use min/max to saturate.

Differential Revision: https://reviews.llvm.org/D57218

llvm-svn: 352230

5 years agoRemove F16 literal support based on Float16 support.
Erich Keane [Fri, 25 Jan 2019 18:36:20 +0000 (18:36 +0000)]
Remove F16 literal support based on Float16 support.

Float16 support was disabled recently on many platforms, however that
commit still allowed literals of Float16 type to work.  This commit
removes those based on the same logic as Float16 disable.

Change-Id: I72243048ae2db3dc47bd3d699843e3edf9c395ea
llvm-svn: 352229

5 years ago[HotColdSplit] Introduce a cost model to control splitting behavior
Vedant Kumar [Fri, 25 Jan 2019 18:30:37 +0000 (18:30 +0000)]
[HotColdSplit] Introduce a cost model to control splitting behavior

The main goal of the model is to avoid *increasing* function size, as
that would eradicate any memory locality benefits from splitting. This
happens when:

  - There are too many inputs or outputs to the cold region. Argument
    materialization and reloads of outputs have a cost.

  - The cold region has too many distinct exit blocks, causing a large
    switch to be formed in the caller.

  - The code size cost of the split code is less than the cost of a
    set-up call.

A secondary goal is to prevent excessive overall binary size growth.

With the cost model in place, I experimented to find a splitting
threshold that works well in practice. To make warm & cold code easily
separable for analysis purposes, I moved split functions to a "cold"
section. I experimented with thresholds between [0, 4] and set the
default to the threshold which minimized geomean __text size.

Experiment data from building LNT+externals for X86 (N = 639 programs,
all sizes in bytes):

| Configuration | __text geom size | __cold geom size | TEXT geom size |
| **-Os**       | 1736.3           | 0, n=0           | 10961.6        |
| -Os, thresh=0 | 1740.53          | 124.482, n=134   | 11014          |
| -Os, thresh=1 | 1734.79          | 57.8781, n=90    | 10978.6        |
| -Os, thresh=2 | ** 1733.85 **    | 65.6604, n=61    | 10977.6        |
| -Os, thresh=3 | 1733.85          | 65.3071, n=61    | 10977.6        |
| -Os, thresh=4 | 1735.08          | 67.5156, n=54    | 10965.7        |
| **-Oz**       | 1554.4           | 0, n=0           | 10153          |
| -Oz, thresh=2 | ** 1552.2 **     | 65.633, n=61     | 10176          |
| **-O3**       | 2563.37          | 0, n=0           | 13105.4        |
| -O3, thresh=2 | ** 2559.49 **    | 71.1072, n=61    | 13162.4        |

Picking thresh=2 reduces the geomean __text section size by 0.14% at
-Os, -Oz, and -O3 and causes ~0.2% growth in the TEXT segment. Note that
TEXT size is page-aligned, whereas section sizes are byte-aligned.

Experiment data from building LNT+externals for ARM64 (N = 558 programs,
all sizes in bytes):

| Configuration | __text geom size | __cold geom size | TEXT geom size |
| **-Os**       | 1763.96          | 0, n=0           | 42934.9        |
| -Os, thresh=2 | ** 1760.9 **     | 76.6755, n=61    | 42934.9        |

Picking thresh=2 reduces the geomean __text section size by 0.17% at
-Os and causes no growth in the TEXT segment.

Measurements were done with D57082 (r352080) applied.

Differential Revision: https://reviews.llvm.org/D57125

llvm-svn: 352228

5 years ago[MC] Teach the MachO object writer about N_FUNC_COLD
Vedant Kumar [Fri, 25 Jan 2019 18:30:22 +0000 (18:30 +0000)]
[MC] Teach the MachO object writer about N_FUNC_COLD

N_FUNC_COLD is a new MachO symbol attribute. It's a hint to the linker
to order a symbol towards the end of its section, to improve locality.

Example:

```
void a1() {}
__attribute__((cold)) void a2() {}
void a3() {}
int main() {
  a1();
  a2();
  a3();
  return 0;
}
```

A linker that supports N_FUNC_COLD will order _a2 to the end of the text
section. From `nm -njU` output, we see:

```
_a1
_a3
_main
_a2
```

Differential Revision: https://reviews.llvm.org/D57190

llvm-svn: 352227

5 years agoResolveBreakpointSite: fix outdated warning message
Tatyana Krasnukha [Fri, 25 Jan 2019 18:27:09 +0000 (18:27 +0000)]
ResolveBreakpointSite: fix outdated warning message

Currently if a breakpoint site is already present, its ID will be returned, not the LLDB_INVALID_BREAK_ID.
On the other hand, Process::CreateBreakpointSite may have another reasons to return LLDB_INVALID_BREAK_ID.

llvm-svn: 352226

5 years agoTemporairly disable readability-uppercase-literal-suffix tests that depend on _Float1...
Roman Lebedev [Fri, 25 Jan 2019 18:05:43 +0000 (18:05 +0000)]
Temporairly disable readability-uppercase-literal-suffix tests that depend on _Float16, to get bots back to green

llvm-svn: 352224

5 years ago[opt-viewer] Add javascript to expand/hide full message for multiline remarks.
Florian Hahn [Fri, 25 Jan 2019 17:48:31 +0000 (17:48 +0000)]
[opt-viewer] Add javascript to expand/hide full message for multiline remarks.

This patch adds support for displaying remarks with multiple
lines. For such remarks, it creates a hidden div
containing the message's lines except the first one in a <pre>
tag. It also prepends a link (with '+' as text) to the regular remark
line. This link can be used to show/hide the div containing the
full remark.

In combination with D57159, this allows for better displaying of
multiline remarks in the html pages generated by opt-viewer.

The Javascript is very simple and should be supported by any recent
major browser.

Reviewers: hfinkel, anemet, thegameg, serge-sans-paille

Reviewed By: anemet

Differential Revision: https://reviews.llvm.org/D57167

llvm-svn: 352223

5 years agoFix incorrect indent from r352221
Erich Keane [Fri, 25 Jan 2019 17:39:57 +0000 (17:39 +0000)]
Fix incorrect indent from r352221

Change-Id: I0a7b1443eb6912ef7bea1a4cf2f696fc01726557
llvm-svn: 352222

5 years agoDisable _Float16 for non ARM/SPIR Targets
Erich Keane [Fri, 25 Jan 2019 17:27:57 +0000 (17:27 +0000)]
Disable _Float16 for non ARM/SPIR Targets

As Discussed here:
http://lists.llvm.org/pipermail/llvm-dev/2019-January/129543.html

There are problems exposing the _Float16 type on architectures that
haven't defined the ABI/ISel for the type yet, so we're temporarily
disabling the type and making it opt-in.

Differential Revision: https://reviews.llvm.org/D57188

Change-Id: I5db7366dedf1deb9485adb8948b1deb7e612a736
llvm-svn: 352221

5 years ago[scudo] Delay allocations in the RSS check test
Kostya Kortchinsky [Fri, 25 Jan 2019 17:23:29 +0000 (17:23 +0000)]
[scudo] Delay allocations in the RSS check test

Summary:
D57116 fails on the armv7 bots, which is I assume due to the timing of
the RSS check on the platform. While I don't have a platform to test
that change on, I assume this would do.

The test could be made more reliable by either delaying more the
allocations, or allocating more large-chunks, but both those options
have a somewhat non negligible impact (more memory used, longer test).

Hence me trying to keep the additional sleeping/allocating to a
minimum.

Reviewers: eugenis, yroux

Reviewed By: yroux

Subscribers: javed.absar, kristof.beyls, delcypher, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D57241

llvm-svn: 352220

5 years agoAllow 'static' storage specifier on an out-of-line member function template
Erich Keane [Fri, 25 Jan 2019 17:01:42 +0000 (17:01 +0000)]
Allow 'static' storage specifier on an out-of-line member function template
declaration in MSVCCompat mode

Microsoft compiler permits the use of 'static' storage specifier outside
of a class definition if it's on an out-of-line member function template
declaration.

This patch allows 'static' storage specifier on an out-of-line member
function template declaration with a warning in Clang (To be compatible
with Microsoft).

Intel C/C++ compiler allows the 'static' keyword with a warning in
Microsoft mode. GCC allows this with -fpermissive.

Patch By: Manna

Differential Revision: https://reviews.llvm.org/D56473

Change-Id: I97b2d9e9d57cecbcd545d17e2523142a85ca2702
llvm-svn: 352219

5 years ago[x86] simplify logic in lowerShuffleWithUndefHalf(); NFCI
Sanjay Patel [Fri, 25 Jan 2019 17:00:41 +0000 (17:00 +0000)]
[x86] simplify logic in lowerShuffleWithUndefHalf(); NFCI

This seems unnecessarily complicated because we gave names to
opposite polarity bools and have code comments that don't really
line up with the logic.

Step 1: remove UndefUpper and assert that it is the opposite of
UndefLower after the initial early exit.

llvm-svn: 352217

5 years ago[DiagnosticInfo] Add support for preserving newlines in remark arguments.
Florian Hahn [Fri, 25 Jan 2019 16:59:06 +0000 (16:59 +0000)]
[DiagnosticInfo] Add support for preserving newlines in remark arguments.

This patch adds a new type StringBlockVal which can be used to emit a
YAML block scalar, which preserves newlines in a multiline string. It
also updates  MappingTraits<DiagnosticInfoOptimizationBase::Argument> to
use it for argument values with more than a single newline.

This is helpful for remarks that want to display more in-depth
information in a more structured way.

Reviewers: thegameg, anemet

Reviewed By: anemet

Subscribers: hfinkel, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D57159

llvm-svn: 352216

5 years ago[TEST][COMMIT] - fix comment typo in AsmPrinter/DwarfDebug.cpp - NFC
Tom Weaver [Fri, 25 Jan 2019 16:29:35 +0000 (16:29 +0000)]
[TEST][COMMIT] - fix comment typo in AsmPrinter/DwarfDebug.cpp - NFC

llvm-svn: 352214

5 years ago[TblGen][NFC] Fix documentation formatting
Javed Absar [Fri, 25 Jan 2019 16:17:57 +0000 (16:17 +0000)]
[TblGen][NFC] Fix documentation formatting

llvm-svn: 352212

5 years ago[RISCV][NFC] s/f32/f64 in double-arith.ll
Alex Bradbury [Fri, 25 Jan 2019 16:04:04 +0000 (16:04 +0000)]
[RISCV][NFC] s/f32/f64 in double-arith.ll

The intrinsic names erroneously used the .f32 variant. As the return and
argument types were still double the intrinsics calls worked properly.

llvm-svn: 352211

5 years ago[X86] Simplify X86ISD::ADD/SUB if we don't use the result flag
Simon Pilgrim [Fri, 25 Jan 2019 15:58:28 +0000 (15:58 +0000)]
[X86] Simplify X86ISD::ADD/SUB if we don't use the result flag

Simplify to the generic ISD::ADD/SUB if we don't make use of the result flag.

This mainly helps with ADDCARRY/SUBBORROW intrinsics which get expanded to X86ISD::ADD/SUB but could be simplified further.

Noticed in some of the test cases in PR31754

Differential Revision: https://reviews.llvm.org/D57234

llvm-svn: 352210

5 years ago[x86] narrow a shuffle that doesn't use or set any high elements
Sanjay Patel [Fri, 25 Jan 2019 15:37:42 +0000 (15:37 +0000)]
[x86] narrow a shuffle that doesn't use or set any high elements

This isn't the final fix for our reduction/horizontal codegen, but it takes care
of a lot of the problems. After we narrow the shuffle, existing combines for
insert/extract and binops kick in, and we end up with cheaper 128-bit ops.

The avg and mul reduction tests show an existing shuffle lowering hole for
AVX2/AVX512. I think in its most minimal form this is:
https://bugs.llvm.org/show_bug.cgi?id=40434
...but we might need multiple fixes to get it right.

Differential Revision: https://reviews.llvm.org/D57156

llvm-svn: 352209

5 years agoRevert r351954 "Add a value_type to ArrayRef."
Clement Courbet [Fri, 25 Jan 2019 15:25:52 +0000 (15:25 +0000)]
Revert r351954 "Add a value_type to ArrayRef."

This breaks arm self-hosted buildbots.

llvm-svn: 352206

5 years ago[clangd] NFC: fix clang-tidy warnings.
Haojian Wu [Fri, 25 Jan 2019 15:14:03 +0000 (15:14 +0000)]
[clangd] NFC: fix clang-tidy warnings.

Most are about llvm code style violation (found via
readability-identifier-naming check).

llvm-svn: 352205

5 years ago[JSON] Work around excess-precision issue when comparing T_Integer numbers.
Sam McCall [Fri, 25 Jan 2019 15:05:33 +0000 (15:05 +0000)]
[JSON] Work around excess-precision issue when comparing T_Integer numbers.

Reviewers: bkramer

Subscribers: kristina, llvm-commits

Differential Revision: https://reviews.llvm.org/D57237

llvm-svn: 352204

5 years ago[NFC][Clang] Add driver tests for sb and predres
Diogo N. Sampaio [Fri, 25 Jan 2019 14:57:22 +0000 (14:57 +0000)]
[NFC][Clang] Add driver tests for sb and predres

Add tests that arguments for enabling/disabling
sb and predres are correctly being or not passed
by the driver.

Differential Revision: https://reviews.llvm.org/D57060

llvm-svn: 352203

5 years agogn build: Merge r352149
Nico Weber [Fri, 25 Jan 2019 14:53:30 +0000 (14:53 +0000)]
gn build: Merge r352149

llvm-svn: 352202

5 years agogn build: Revert r352200, commit message was wrong
Nico Weber [Fri, 25 Jan 2019 14:52:50 +0000 (14:52 +0000)]
gn build: Revert r352200, commit message was wrong

llvm-svn: 352201

5 years agogn build: Merge r352148
Nico Weber [Fri, 25 Jan 2019 14:50:14 +0000 (14:50 +0000)]
gn build: Merge r352148

llvm-svn: 352200

5 years ago[RISCV] Add tests to demonstrate bitcasted fneg/fabs dagcombines
Alex Bradbury [Fri, 25 Jan 2019 14:33:08 +0000 (14:33 +0000)]
[RISCV] Add tests to demonstrate bitcasted fneg/fabs dagcombines

This target-independent code won't trigger for cases such as RV32FD where
custom SelectionDAG nodes are generated. These new tests demonstrate such
cases. Additionally, float-arith.ll was updated so that fneg.s, fsgnjn.s, and
fabs.s selection patterns are actually exercised.

llvm-svn: 352199

5 years agoFix line endings and trim trailing whitespace. NFCI.
Simon Pilgrim [Fri, 25 Jan 2019 14:29:57 +0000 (14:29 +0000)]
Fix line endings and trim trailing whitespace. NFCI.

llvm-svn: 352198

5 years agogitignore: ignore clangd index files.
Haojian Wu [Fri, 25 Jan 2019 14:05:18 +0000 (14:05 +0000)]
gitignore: ignore clangd index files.

Reviewers: kadircet

Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, llvm-commits

Differential Revision: https://reviews.llvm.org/D57227

llvm-svn: 352197

5 years ago[X86] Add addcarry/subborrow combine tests
Simon Pilgrim [Fri, 25 Jan 2019 12:26:27 +0000 (12:26 +0000)]
[X86] Add addcarry/subborrow combine tests

Show failure to simplify cases with zero op/flags

llvm-svn: 352196

5 years ago[llvm-symbolizer] Add switch to adjust addresses by fixed offset
James Henderson [Fri, 25 Jan 2019 11:49:21 +0000 (11:49 +0000)]
[llvm-symbolizer] Add switch to adjust addresses by fixed offset

If a stack trace or similar has a list of addresses from an executable
or DSO loaded at a variable address (e.g. due to ASLR), the addresses
will not directly correspond to the addresses stored in the object file.
If a user wishes to use llvm-symbolizer, they have to subtract the load
address from every address. This is somewhat inconvenient, especially as
the output of --print-address will result in the adjusted address being
listed, rather than the address coming from the stack trace, making it
harder to map results between the two.

This change adds a new switch to llvm-symbolizer --adjust-vma which
takes an offset, which is then used to automatically do this
calculation. The printed address remains the input address (allowing for
easy mapping), whilst the specified offset is applied to the addresses
when performing the lookup.

The switch is conceptually similar to llvm-objdump's new switch of the
same name (see D57051), which in turn mirrors a GNU switch. There is no
equivalent switch in addr2line.

Reviewed by: grimar

Differential Revision: https://reviews.llvm.org/D57151

llvm-svn: 352195

5 years ago[NFC] One more crashing test on LoopSimplifyCFG
Max Kazantsev [Fri, 25 Jan 2019 11:47:16 +0000 (11:47 +0000)]
[NFC] One more crashing test on LoopSimplifyCFG

llvm-svn: 352194

5 years agoFix gcc -Wparentheses warning. NFCI.
Simon Pilgrim [Fri, 25 Jan 2019 11:38:40 +0000 (11:38 +0000)]
Fix gcc -Wparentheses warning. NFCI.

llvm-svn: 352193

5 years agoFix "control reaches end of non-void function" warning. NFCI.
Simon Pilgrim [Fri, 25 Jan 2019 11:36:51 +0000 (11:36 +0000)]
Fix "control reaches end of non-void function" warning. NFCI.

llvm-svn: 352192

5 years agoFix gcc -Wparentheses warning. NFCI.
Simon Pilgrim [Fri, 25 Jan 2019 11:34:58 +0000 (11:34 +0000)]
Fix gcc -Wparentheses warning. NFCI.

llvm-svn: 352191

5 years ago[NFC] Add failing test on LCSSA forming
Max Kazantsev [Fri, 25 Jan 2019 11:32:21 +0000 (11:32 +0000)]
[NFC] Add failing test on LCSSA forming

llvm-svn: 352190

5 years ago[ARM GlobalISel] Support shifts for Thumb2
Diana Picus [Fri, 25 Jan 2019 10:48:42 +0000 (10:48 +0000)]
[ARM GlobalISel] Support shifts for Thumb2

Same as ARM.

On this occasion we split some of the instruction select tests for more
complicated instructions into their own files, so we can reuse them for
ARM and Thumb mode. Likewise for the legalizer tests.

llvm-svn: 352188

5 years ago[ARM GlobalISel] Remove rebase artifact from r351882. NFC
Diana Picus [Fri, 25 Jan 2019 10:48:35 +0000 (10:48 +0000)]
[ARM GlobalISel] Remove rebase artifact from r351882. NFC

r351882 introduced some superfluous calls to mark G_INTTOPTR and
G_PTRTOINT as legal (looks like a rebase mishap). Remove them.

llvm-svn: 352187

5 years agoRevert r352181 as it's breaking the bots
Anton Korobeynikov [Fri, 25 Jan 2019 10:35:35 +0000 (10:35 +0000)]
Revert r352181 as it's breaking the bots

llvm-svn: 352186

5 years ago[TblGen] Extend !if semantics through new feature !cond
Javed Absar [Fri, 25 Jan 2019 10:25:25 +0000 (10:25 +0000)]
[TblGen] Extend !if semantics through new feature !cond

This patch extends TableGen language with !cond operator.
Instead of embedding !if inside !if which can get cumbersome,
one can now use !cond.
Below is an example to convert an integer 'x' into a string:

    !cond(!lt(x,0) : "Negative",
          !eq(x,0) : "Zero",
          !eq(x,1) : "One,
          1        : "MoreThanOne")

Reviewed By: hfinkel, simon_tatham, greened
Differential Revision: https://reviews.llvm.org/D55758

llvm-svn: 352185

5 years ago[clangd] Log clang-tidy configuration, NFC
Haojian Wu [Fri, 25 Jan 2019 10:14:27 +0000 (10:14 +0000)]
[clangd] Log clang-tidy configuration, NFC

Summary: This is used for debugging purpose.

Reviewers: sammccall

Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D57057

llvm-svn: 352184

5 years ago[clang-tidy] Add check for underscores in googletest names.
Haojian Wu [Fri, 25 Jan 2019 10:03:49 +0000 (10:03 +0000)]
[clang-tidy] Add check for underscores in googletest names.

Summary: Adds a clang-tidy warning for underscores in googletest names.

Patch by Kar Epker!

Reviewers: hokein, alexfh, aaron.ballman

Reviewed By: hokein

Subscribers: Eugene.Zelenko, JonasToth, MyDeveloperDay, lebedev.ri, xazax.hun, mgorny, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D56424

llvm-svn: 352183

5 years ago[llvm-objcopy] Add support for -g as an alias for --strip-debug
Douglas Yung [Fri, 25 Jan 2019 09:57:20 +0000 (09:57 +0000)]
[llvm-objcopy] Add support for -g as an alias for --strip-debug

This change adds an option -g to llvm-objcopy which is an alias for the existing option --strip-debug.

This fixes PR40003.

Reviewed by: alexshap

Differential Revision: https://reviews.llvm.org/D57217

llvm-svn: 352182

5 years agoDisable PIC/PIE for MSP430 target by default.
Anton Korobeynikov [Fri, 25 Jan 2019 09:41:20 +0000 (09:41 +0000)]
Disable PIC/PIE for MSP430 target by default.

Relocatable code generation is meaningless on MSP430, as the platform is too small to use shared libraries.

Patch by Dmitry Mikushev!

Differential Revision: https://reviews.llvm.org/D56927

llvm-svn: 352181

5 years agoFix typo in ClangModulesDeclVendor [NFC]
Raphael Isemann [Fri, 25 Jan 2019 09:28:48 +0000 (09:28 +0000)]
Fix typo in ClangModulesDeclVendor [NFC]

llvm-svn: 352180

5 years ago[llvm-mca][X86] Add missing shuffle tests
Simon Pilgrim [Fri, 25 Jan 2019 09:17:30 +0000 (09:17 +0000)]
[llvm-mca][X86] Add missing shuffle tests

Match the coverage of test\CodeGen\X86\avx512-shuffle-schedule.ll so we can get rid of -print-schedule (and fix PR37160) without losing schedule tests

llvm-svn: 352179

5 years ago[MSP430] Fix absolute addressing mode printing in AsmPrinter
Anton Korobeynikov [Fri, 25 Jan 2019 09:14:05 +0000 (09:14 +0000)]
[MSP430] Fix absolute addressing mode printing in AsmPrinter

Align checks for absolute addressing mode with its current
implementation (SR is used as a base register).

This fixes https://bugs.llvm.org/show_bug.cgi?id=39993

Patch by Kristina Bessonova!

Differential Revision: https://reviews.llvm.org/D56785

llvm-svn: 352178

5 years ago[MSP430] Ajust f32/f64 alignment according to MSP430 EABI
Anton Korobeynikov [Fri, 25 Jan 2019 08:51:53 +0000 (08:51 +0000)]
[MSP430] Ajust f32/f64 alignment according to MSP430 EABI

Patch by Kristina Bessonova!

Differential Revision: https://reviews.llvm.org/D57015

llvm-svn: 352177

5 years ago[NFC] Add test with multiple loops
Max Kazantsev [Fri, 25 Jan 2019 08:46:00 +0000 (08:46 +0000)]
[NFC] Add test with multiple loops

llvm-svn: 352176

5 years agoRefactor HAVE_LIBCOMPRESSION and related code in GDBRemoteCommunication
Raphael Isemann [Fri, 25 Jan 2019 08:21:47 +0000 (08:21 +0000)]
Refactor HAVE_LIBCOMPRESSION and related code in GDBRemoteCommunication

Summary:
The field `m_decompression_scratch_type` is only used when `HAVE_LIBCOMPRESSION` is
defined, which caused a warning which I fixed in rLLDB350675 by just marking the variable as always used.

This patch fixes this in a better way by only defining the variable (and the related `m_decompression_scratch`
variable) when `HAVE_LIBCOMPRESSION` is defined. This also required changing the way we handle
`HAVE_LIBCOMPRESSION` works, as this was previously always defined on macOS within the source file
but not in the header. Now it's always defined from within our config header when CMake defines it or when
we are on macOS.

The field initialization was moved to the header to prevent that we have `#ifdef` within our initializer list.

Reviewers: #lldb, jasonmolenda, sgraenitz, labath

Reviewed By: labath

Subscribers: labath, beanz, mgorny, lldb-commits, dblaikie

Differential Revision: https://reviews.llvm.org/D57011

llvm-svn: 352175

5 years ago[PowerPC] Enhance the fast selection of cmp instruction and clean up related asserts
Zi Xuan Wu [Fri, 25 Jan 2019 07:24:59 +0000 (07:24 +0000)]
[PowerPC] Enhance the fast selection of cmp instruction and clean up related asserts

Fast selection of llvm icmp and fcmp instructions is not handled well about VSX instruction support.

We'd use VSX float comparison instruction instead of non-vsx float comparison instruction
if the operand register class is VSSRC or VSFRC because i32 and i64 are mapped to VSSRC and
VSFRC correspondingly if VSX feature is opened.

If the target does not have corresponding VSX instruction comparison for some type,
just copy VSX-related register to common float register class and use non-vsx comparison instruction.

Differential Revision: https://reviews.llvm.org/D57078

llvm-svn: 352174

5 years ago[X86] Remove mask and passthru arguments from vpconflict builtins. Use select in...
Craig Topper [Fri, 25 Jan 2019 07:08:22 +0000 (07:08 +0000)]
[X86] Remove mask and passthru arguments from vpconflict builtins. Use select in IR instead.

llvm-svn: 352173

5 years ago[X86] Add non-masked versions of vpconflict intrinsics so we can use a select in...
Craig Topper [Fri, 25 Jan 2019 07:08:07 +0000 (07:08 +0000)]
[X86] Add non-masked versions of vpconflict intrinsics so we can use a select in the header file in clang.

I'll remove and autoupgrade the old intrinsics in a future commit.

llvm-svn: 352172

5 years ago[RISCV] Custom-legalise i32 SDIV/UDIV/UREM on RV64M
Alex Bradbury [Fri, 25 Jan 2019 05:11:34 +0000 (05:11 +0000)]
[RISCV] Custom-legalise i32 SDIV/UDIV/UREM on RV64M

Follow the same custom legalisation strategy as used in D57085 for
variable-length shifts (see that patch summary for more discussion). Although
we may lose out on some late-stage DAG combines, I think this custom
legalisation strategy is ultimately easier to reason about.

There are some codegen changes in rv64m-exhaustive-w-insts.ll but they are all
neutral in terms of the number of instructions.

Differential Revision: https://reviews.llvm.org/D57096

llvm-svn: 352171

5 years ago[LoopSimplifyCFG] Fix inconsistency in blocks in loop markup
Max Kazantsev [Fri, 25 Jan 2019 05:05:02 +0000 (05:05 +0000)]
[LoopSimplifyCFG] Fix inconsistency in blocks in loop markup

2nd part of D57095 with the same reason, just in another place. We never
fold branches that are not immediately in the current loop, but this check
is missing in `IsEdgeLive` As result, it may think that the edge in subloop is
dead while it's live. It's a pessimization in the current stance.

Differential Revision: https://reviews.llvm.org/D57147
Reviewed By: rupprecht

llvm-svn: 352170