platform/upstream/llvm.git
7 years ago[LSR] Call canonicalize after we generate a new Formula in GenerateTruncates. Fix...
Wei Mi [Thu, 18 May 2017 17:21:22 +0000 (17:21 +0000)]
[LSR] Call canonicalize after we generate a new Formula in GenerateTruncates. Fix PR33077.

The testcase in PR33077 generates a LSR Use Formula with two SCEVAddRecExprs for the same
loop. Such uncommon formula will become non-canonical after GenerateTruncates adds sign
extension to the ScaledReg of the Formula, and it will break the assertion that every
Formula to be inserted is canonical.

The fix is to call canonicalize for the raw Formula generated by GenerateTruncates
before inserting it.

llvm-svn: 303361

7 years ago[LegacyPassManager] Remove TargetMachine constructors
Francis Visoiu Mistrih [Thu, 18 May 2017 17:21:13 +0000 (17:21 +0000)]
[LegacyPassManager] Remove TargetMachine constructors

This provides a new way to access the TargetMachine through
TargetPassConfig, as a dependency.

The patterns replaced here are:

* Passes handling a null TargetMachine call
  `getAnalysisIfAvailable<TargetPassConfig>`.

* Passes not handling a null TargetMachine
  `addRequired<TargetPassConfig>` and call
  `getAnalysis<TargetPassConfig>`.

* MachineFunctionPasses now use MF.getTarget().

* Remove all the TargetMachine constructors.
* Remove INITIALIZE_TM_PASS.

This fixes a crash when running `llc -start-before prologepilog`.

PEI needs StackProtector, which gets constructed without a TargetMachine
by the pass manager. The StackProtector pass doesn't handle the case
where there is no TargetMachine, so it segfaults.

Related to PR30324.

Differential Revision: https://reviews.llvm.org/D33222

llvm-svn: 303360

7 years ago[git-llvm] Don't attempt to propget files that don't exist yet in SVN
Reid Kleckner [Thu, 18 May 2017 17:17:17 +0000 (17:17 +0000)]
[git-llvm] Don't attempt to propget files that don't exist yet in SVN

svn propget will fail halfway through, and the patch will fail to apply.

llvm-svn: 303359

7 years ago[CodeGen] Propagate LValueBaseInfo instead of AlignmentSource
Krzysztof Parzyszek [Thu, 18 May 2017 17:07:11 +0000 (17:07 +0000)]
[CodeGen] Propagate LValueBaseInfo instead of AlignmentSource

The functions creating LValues propagated information about alignment
source. Extend the propagated data to also include information about
possible unrestricted aliasing. A new class LValueBaseInfo will
contain both AlignmentSource and MayAlias info.

This patch should not introduce any functional changes.

Differential Revision: https://reviews.llvm.org/D33284

llvm-svn: 303358

7 years agoUse make<> everywhere in COFF to make it consistent with ELF.
Rui Ueyama [Thu, 18 May 2017 17:03:49 +0000 (17:03 +0000)]
Use make<> everywhere in COFF to make it consistent with ELF.

We've been using make<> to allocate new objects in ELF. We have
the same function in COFF, but we didn't use it widely due to
negligence. This patch uses the function in COFF to close the gap
between ELF and COFF.

llvm-svn: 303357

7 years ago[Fortran Support] Change "global" pattern match to work for params
Siddharth Bhat [Thu, 18 May 2017 16:47:13 +0000 (16:47 +0000)]
[Fortran Support] Change "global" pattern match to work for params

Summary:
- Rename global / local naming convention that did not make much sense
to Visible / Invisible, where the visible refers to whether the ALLOCATE
call to the Fortran array is present in the current module or not.

- This match now works on both cross fortran module globals and on
parameters to functions since neither of them are necessarily allocated
at the point of their usage.

- Add testcase that matches against both a load and a store against
function parameters.

Differential Revision: https://reviews.llvm.org/D33190

llvm-svn: 303356

7 years agoAlternative way to detemplate GotSection.
Rafael Espindola [Thu, 18 May 2017 16:45:36 +0000 (16:45 +0000)]
Alternative way to detemplate GotSection.

GetSection is a template because write calls relocate.

relocate has two parts. The non alloc code really has to be a
template, as it is looking a raw input file data.

The alloc part is only a template because of getSize.

This patch folds the value of getSize early, detemplates
getRelocTargetVA and splits relocate into a templated non alloc case
and a regular function for the alloc case. This has the nice advantage
of making sure we collect all the information we need for relocations
before getting to InputSection::relocateNonAlloc.

Since we know got is alloc, it can just call the function directly and
avoid the template.

llvm-svn: 303355

7 years agoFix flag to start with 1 << 0. NFC.
Rafael Espindola [Thu, 18 May 2017 16:20:12 +0000 (16:20 +0000)]
Fix flag to start with 1 << 0. NFC.

Thanks to Andrew Ng for noticing it.

llvm-svn: 303354

7 years ago[clang-format] Fix MatchingOpeningBlockLineIndex computation
Krasimir Georgiev [Thu, 18 May 2017 15:16:24 +0000 (15:16 +0000)]
[clang-format] Fix MatchingOpeningBlockLineIndex computation

Summary:
Computed line index must be relative to the current 'parent' node, and
thus use CurrentLines instead of Lines.

Without this, a child line's MatchingOpeningBlockLineIndex is out of
range of the parent's list of line, which can cause crash or unexpected
behavior if this field is used in childs.

Contributed by @Typz!

Reviewers: krasimir, djasper

Reviewed By: krasimir

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D32524

llvm-svn: 303353

7 years ago[COFF] Fix interaction between /DEBUG and /PDB
Zachary Turner [Thu, 18 May 2017 15:15:10 +0000 (15:15 +0000)]
[COFF] Fix interaction between /DEBUG and /PDB

When /DEBUG is not specified, /PDB should be ignored.  When
/DEBUG is specified, a PDB should be output regardless of
whether or not /PDB is specified.  /PDB just overrides the
default name.

This patch implements this behavior, and adds some tests, while
also removing a dead option /DEBUGPDB which was unused in any
code.

Differential Revision: https://reviews.llvm.org/D33302

llvm-svn: 303352

7 years agoFix some minor issues in PDB parsing library.
Zachary Turner [Thu, 18 May 2017 15:14:44 +0000 (15:14 +0000)]
Fix some minor issues in PDB parsing library.

1) Until now I'd never seen a valid PDB where the DBI stream and
   the PDB Stream disagreed on the "Age" field.  Because of that,
   we had code to assert that they matched.  Recently though I was
   given a PDB where they disagreed, so this assumption has proven
   to be incorrect.  Remove this check.

2) We were walking the entire list of hash values for types up front
   and then throwing away the values.  For large PDBs this was a
   significant slow down.  Remove this.

With this patch, I can dump the list of all compilands from a
1.5GB PDB file in just a few seconds.

llvm-svn: 303351

7 years ago[compiler-rt][cmake] Build unit tests conditionally with _FILE_OFFSET_BITS=64 and...
Simon Dardis [Thu, 18 May 2017 13:19:35 +0000 (13:19 +0000)]
[compiler-rt][cmake] Build unit tests conditionally with _FILE_OFFSET_BITS=64 and _LARGEFILE_SOURCE

The sanitizer library unit tests for libc can get a different definition
of 'struct stat' to what the sanitizer library is built with for certain
targets.

For MIPS the size element of 'struct stat' is after a macro guarded
explicit padding element.

This patch resolves any possible inconsistency by adding the same
_FILE_OFFSET_BITS=64 and _LARGE_SOURCE with the same
conditions as the sanitizer library to the build flags for the unit tests.

This resolves a recurring build failure on the MIPS buildbots due to
'struct stat' defintion differences.

Reviewers: slthakur

Differential Revision: https://reviews.llvm.org/D33131

llvm-svn: 303350

7 years ago[JumpThreading] Dont RAUW condition incorrectly
Anna Thomas [Thu, 18 May 2017 13:12:18 +0000 (13:12 +0000)]
[JumpThreading] Dont RAUW condition incorrectly

Summary:
We have a bug when RAUWing the condition if experimental.guard or assumes is a use of that
condition. This is because LazyValueInfo may have used the guards/assumes to identify the
value of the condition at the end of the block. RAUW replaces the uses
at the guard/assume as well as uses before the guard/assume. Both of
these are incorrect.
For now, disable RAUW for conditions and fix the logic as a next
step: https://reviews.llvm.org/D33257

Reviewers: sanjoy, reames, trentxintong

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D33279

llvm-svn: 303349

7 years agoAdd Status -- llvm::Error glue
Pavel Labath [Thu, 18 May 2017 12:46:50 +0000 (12:46 +0000)]
Add Status -- llvm::Error glue

Summary:
This adds functions to convert between llvm::Error and Status classes.
Posix errors in Status are represented as llvm::ECError, and the rest as
llvm::StringError.

For the conversion from Error to Status, ECError is again represented as
a posix error in Status, while other errors are stored as generic errors
and only the string value is preserved.

Reviewers: zturner, jingham

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D33241

llvm-svn: 303348

7 years ago[AMDGPU] SDWA operands should not intersect with potential MIs
Sam Kolton [Thu, 18 May 2017 12:12:03 +0000 (12:12 +0000)]
[AMDGPU] SDWA operands should not intersect with potential MIs

Summary:
There should be no intesection between SDWA operands and potential MIs. E.g.:
```
v_and_b32 v0, 0xff, v1 -> src:v1 sel:BYTE_0
v_and_b32 v2, 0xff, v0 -> src:v0 sel:BYTE_0
v_add_u32 v3, v4, v2
```
In that example it is possible that we would fold 2nd instruction into 3rd (v_add_u32_sdwa) and then try to fold 1st instruction into 2nd (that was already destroyed). So if SDWAOperand is also a potential MI then do not apply it.

Reviewers: vpykhtin, arsenm

Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye

Differential Revision: https://reviews.llvm.org/D32804

llvm-svn: 303347

7 years ago[MVT] add v1i1 MVT
Guy Blank [Thu, 18 May 2017 11:29:41 +0000 (11:29 +0000)]
[MVT] add v1i1 MVT

Adds the v1i1 MVT as a preparation for another commit (https://reviews.llvm.org/D32273)

Differential Revision: https://reviews.llvm.org/D32540

llvm-svn: 303346

7 years ago[GlobalISel][X86] G_ADD/G_SUB vector legalizer/selector support.
Igor Breger [Thu, 18 May 2017 11:10:56 +0000 (11:10 +0000)]
[GlobalISel][X86] G_ADD/G_SUB vector legalizer/selector support.

Summary: G_ADD/G_SUB vector legalizer/selector support.

Reviewers: zvi, guyblank

Reviewed By: guyblank

Subscribers: rovka, llvm-commits, kristof.beyls

Differential Revision: https://reviews.llvm.org/D33232

llvm-svn: 303345

7 years agoFix 'not all control paths return a value' warning on windows buildbots.
Simon Pilgrim [Thu, 18 May 2017 10:48:23 +0000 (10:48 +0000)]
Fix 'not all control paths return a value' warning on windows buildbots.

llvm-svn: 303344

7 years ago[index] Record references to class receivers used in property references
Alex Lorenz [Thu, 18 May 2017 10:43:11 +0000 (10:43 +0000)]
[index] Record references to class receivers used in property references

rdar://32250025

llvm-svn: 303343

7 years ago[X86][AVX512] Add 512-bit vector ctpop costs + tests
Simon Pilgrim [Thu, 18 May 2017 10:42:34 +0000 (10:42 +0000)]
[X86][AVX512] Add 512-bit vector ctpop costs + tests

llvm-svn: 303342

7 years agoRe-commit: [globalisel][tablegen] Import rules containing intrinsic_wo_chain.
Daniel Sanders [Thu, 18 May 2017 10:33:36 +0000 (10:33 +0000)]
Re-commit: [globalisel][tablegen] Import rules containing intrinsic_wo_chain.

Summary:
As of this patch, 1018 out of 3938 rules are currently imported.

Depends on D32275

Reviewers: qcolombet, kristof.beyls, rovka, t.p.northover, ab, aditya_nandakumar

Reviewed By: qcolombet

Subscribers: dberris, igorb, llvm-commits

Differential Revision: https://reviews.llvm.org/D32278

The previous commit failed on test-suite/Bitcode/simd_ops/AArch64_halide_runtime.bc
because isImmOperandEqual() assumed MO was a register operand and that's not
always true.

llvm-svn: 303341

7 years ago[X86] Add explicit triple to test invocation
Zvi Rackover [Thu, 18 May 2017 09:32:56 +0000 (09:32 +0000)]
[X86] Add explicit triple to test invocation

llvm-svn: 303340

7 years agoRevert r302781 and subsequent attempts to disable part of it.
Daniel Jasper [Thu, 18 May 2017 09:31:37 +0000 (09:31 +0000)]
Revert r302781 and subsequent attempts to disable part of it.

The Msan unit tests are still broken and by this point, I think we
should start over.

llvm-svn: 303339

7 years agoFixup r303324 - temporary disable stndup interceptor, due to r302781 being buggy
Diana Picus [Thu, 18 May 2017 09:12:27 +0000 (09:12 +0000)]
Fixup r303324 - temporary disable stndup interceptor, due to r302781 being buggy

r303324 missed one of the tests added by r302781. This commit applies
the same fix as r303324 to the missed test (strndup.cc).

llvm-svn: 303338

7 years ago[ELF] Support R_ARM_SBREL32 Relocation
Peter Smith [Thu, 18 May 2017 09:12:21 +0000 (09:12 +0000)]
[ELF] Support R_ARM_SBREL32 Relocation

This change adds support for the R_ARM_SBREL32 relocation. The relocation
is a base relative relocation that is produced by clang/llvm when -frwpi
is used. The use case for the -frwpi option is position independent data
for embedded systems that do not have a GOT. With -frwpi all data is
accessed via an offset from a base register (usually r9), where r9 is set
at run time to where the data has been loaded. The base of the data is
known as the static base.

The ARM ABI defines the static base as:
B(S) is the addressing origin of the output segment defining the symbol S.
The origin is not required to be the base address of the segment. For
simplicity we choose to use the base address of the segment.

The ARM procedure call standard only defines a read write variant using
R_ARM_SBREL32 relocations. The read-only data is accessed via pc-relative
offsets from the code, this is implemented in clang as -fropi.

Fixes PR32924

Differential Revision: https://reviews.llvm.org/D33280

llvm-svn: 303337

7 years ago[SCEV][NFC] Remove duplication of isLoopInvariant code
Max Kazantsev [Thu, 18 May 2017 08:26:41 +0000 (08:26 +0000)]
[SCEV][NFC] Remove duplication of isLoopInvariant code

Replace two places that duplicate the code of isLoopInvariant method with
the invocation of this method.

Differential Revision: https://reviews.llvm.org/D33313

llvm-svn: 303336

7 years ago[DWARF] - Simplify RelocVisitor implementation.
George Rimar [Thu, 18 May 2017 08:25:11 +0000 (08:25 +0000)]
[DWARF] - Simplify RelocVisitor implementation.

We do not need to store relocation width field.
Patch removes relative code, that simplifies implementation.

Differential revision: https://reviews.llvm.org/D33274

llvm-svn: 303335

7 years ago[lib/Object] - Fix build bot after r303331 "[lib/Object] - Minor API update for llvm...
George Rimar [Thu, 18 May 2017 08:14:43 +0000 (08:14 +0000)]
[lib/Object] - Fix build bot after r303331 "[lib/Object] - Minor API update for llvm::Decompressor".

Error was:
Decompressor.h:33:28: error: extra qualification ‘llvm::object::Decompressor::’ on member ‘resizeAndDecompress’ [-fpermissive]
   template <class T> Error Decompressor::resizeAndDecompress(T &Out) {

llvm-svn: 303334

7 years ago[X86] Replace slow LEA instructions in X86
Lama Saba [Thu, 18 May 2017 08:11:50 +0000 (08:11 +0000)]
[X86] Replace slow LEA instructions in X86

  According to Intel's Optimization Reference Manual for SNB+:
  " For LEA instructions with three source operands and some specific situations, instruction latency has increased to 3 cycles, and must
    dispatch via port 1:
  - LEA that has all three source operands: base, index, and offset
  - LEA that uses base and index registers where the base is EBP, RBP,or R13
  - LEA that uses RIP relative addressing mode
  - LEA that uses 16-bit addressing mode "
  This patch currently handles the first 2 cases only.

Differential Revision: https://reviews.llvm.org/D32277

llvm-svn: 303333

7 years ago[clang-format] Make NoLineBreakFormatter respect MustBreakBefore
Krasimir Georgiev [Thu, 18 May 2017 08:07:52 +0000 (08:07 +0000)]
[clang-format] Make NoLineBreakFormatter respect MustBreakBefore

Summary:
This patch makes NoLineBreakFormatter to insert a break before tokens where
MustBreakBefore is true.

Reviewers: djasper

Reviewed By: djasper

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D33238

llvm-svn: 303332

7 years ago[lib/Object] - Minor API update for llvm::Decompressor.
George Rimar [Thu, 18 May 2017 08:00:01 +0000 (08:00 +0000)]
[lib/Object] - Minor API update for llvm::Decompressor.

I revisited Decompressor API (issue with it was triggered during D32865 review)
and found it is probably provides more then we really need.

Issue was about next method's signature:

Error decompress(SmallString<32> &Out);
It is too strict. At first I wanted to change it to decompress(SmallVectorImpl<char> &Out),
but then found it is still not flexible because sticks to SmallVector.

During reviews was suggested to use templating to simplify code. Patch do that.

Differential revision: https://reviews.llvm.org/D33200

llvm-svn: 303331

7 years agoclang-format: fix prefix for doxygen comments after member
Krasimir Georgiev [Thu, 18 May 2017 07:36:21 +0000 (07:36 +0000)]
clang-format: fix prefix for doxygen comments after member

Summary:
Doxygen supports putting documentation blocks after member, by adding
an additional < marker in the comment block. This patch makes sure
this marker is used in lines which are introduced by breaking the
comment.

  int foo; ///< Some very long comment.

becomes:

  int foo; ///< Some very long
           ///< comment.

Contributed by @Typz!

Reviewers: krasimir

Reviewed By: krasimir

Subscribers: djasper, klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D33282

llvm-svn: 303330

7 years agoFix buildbot failure after rL303327: [BPI] Reduce the probability of unreachable...
Serguei Katkov [Thu, 18 May 2017 07:20:52 +0000 (07:20 +0000)]
Fix buildbot failure after rL303327: [BPI] Reduce the probability of unreachable edge to minimal value greater than 0.

One more test is updated to meet new branch probability for unreachable branches.

llvm-svn: 303329

7 years ago[X86] Adding tests for scalar bitcasts from vsetcc. NFC.
Zvi Rackover [Thu, 18 May 2017 07:04:48 +0000 (07:04 +0000)]
[X86] Adding tests for scalar bitcasts from vsetcc. NFC.

llvm-svn: 303328

7 years ago[BPI] Reduce the probability of unreachable edge to minimal value greater than 0
Serguei Katkov [Thu, 18 May 2017 06:11:56 +0000 (06:11 +0000)]
[BPI] Reduce the probability of unreachable edge to minimal value greater than 0

The probability of edge coming to unreachable block should be as low as possible.
The change reduces the probability to minimal value greater than zero.

The bug https://bugs.llvm.org/show_bug.cgi?id=32214 show the example when
the probability of edge coming to unreachable block is greater than for edge
coming to out of the loop and it causes incorrect loop rotation.

Please note that with this change the behavior of unreachable heuristic is a bit different
than others. Specifically, before this change the sum of probabilities
coming to unreachable blocks have the same weight for all branches
(it was just split over all edges of this block coming to unreachable blocks).
With this change it might be slightly different but not to much due to probability of
taken branch to unreachable block is really small.

Reviewers: chandlerc, sanjoy, vsk, congh, junbuml, davidxl, dexonsmith
Reviewed By: chandlerc, dexonsmith
Subscribers: reames, llvm-commits
Differential Revision: https://reviews.llvm.org/D30633

llvm-svn: 303327

7 years ago[ThinLTO] Do not assert when adding a module with a different but
Akira Hatanaka [Thu, 18 May 2017 03:52:29 +0000 (03:52 +0000)]
[ThinLTO] Do not assert when adding a module with a different but
compatible target triple

Currently, an assertion fails in ThinLTOCodeGenerator::addModule when
the target triple of the module being added doesn't match that of the
one stored in TMBuilder. This patch relaxes the constraint and makes
changes to allow target triples that only differ in their version
numbers on Apple platforms, similarly to what r228999 did.

rdar://problem/30133904

Differential Revision: https://reviews.llvm.org/D33291

llvm-svn: 303326

7 years agoFix an assertion failure in FormatASTNodeDiagnosticArgument.
Alexander Kornienko [Thu, 18 May 2017 03:02:15 +0000 (03:02 +0000)]
Fix an assertion failure in FormatASTNodeDiagnosticArgument.

Summary:
The test being added in this patch used to cause an assertion failure:

/build/./bin/clang -cc1 -internal-isystem /build/lib/clang/5.0.0/include -nostdsysteminc -verify -fsyntax-only -std=c++11 -Wshadow-all /src/tools/clang/test/SemaCXX/warn-shadow.cpp
--
Exit Code: 134

Command Output (stderr):
--
clang: /src/tools/clang/lib/AST/ASTDiagnostic.cpp:424: void clang::FormatASTNodeDiagnosticArgument(DiagnosticsEngine::ArgumentKind, intptr_t, llvm::StringRef, llvm::StringRef, ArrayRef<DiagnosticsEngine::ArgumentValue>, SmallVectorImpl<char> &, void *, ArrayRef<intptr_t>): Assertion `isa<NamedDecl>(DC) && "Expected a NamedDecl"' failed.
#0 0x0000000001c7a1b4 PrintStackTraceSignalHandler(void*) (/build/./bin/clang+0x1c7a1b4)
#1 0x0000000001c7a4e6 SignalHandler(int) (/build/./bin/clang+0x1c7a4e6)
#2 0x00007f30880078d0 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0xf8d0)
#3 0x00007f3087054067 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x35067)
#4 0x00007f3087055448 abort (/lib/x86_64-linux-gnu/libc.so.6+0x36448)
#5 0x00007f308704d266 (/lib/x86_64-linux-gnu/libc.so.6+0x2e266)
#6 0x00007f308704d312 (/lib/x86_64-linux-gnu/libc.so.6+0x2e312)
#7 0x00000000035b7f22 clang::FormatASTNodeDiagnosticArgument(clang::DiagnosticsEngine::ArgumentKind, long, llvm::StringRef, llvm::StringRef, llvm::ArrayRef<std::pair<clang::DiagnosticsEngine::ArgumentKind, long> >, llvm::SmallVectorImpl<char>&, void*, llvm::ArrayRef<long>) (/build/
./bin/clang+0x35b7f22)
#8 0x0000000001ddbae4 clang::Diagnostic::FormatDiagnostic(char const*, char const*, llvm::SmallVectorImpl<char>&) const (/build/./bin/clang+0x1ddbae4)
#9 0x0000000001ddb323 clang::Diagnostic::FormatDiagnostic(char const*, char const*, llvm::SmallVectorImpl<char>&) const (/build/./bin/clang+0x1ddb323)
#10 0x00000000022878a4 clang::TextDiagnosticBuffer::HandleDiagnostic(clang::DiagnosticsEngine::Level, clang::Diagnostic const&) (/build/./bin/clang+0x22878a4)
#11 0x0000000001ddf387 clang::DiagnosticIDs::ProcessDiag(clang::DiagnosticsEngine&) const (/build/./bin/clang+0x1ddf387)
#12 0x0000000001dd9dea clang::DiagnosticsEngine::EmitCurrentDiagnostic(bool) (/build/./bin/clang+0x1dd9dea)
#13 0x0000000002cad00c clang::Sema::EmitCurrentDiagnostic(unsigned int) (/build/./bin/clang+0x2cad00c)
#14 0x0000000002d91cd2 clang::Sema::CheckShadow(clang::NamedDecl*, clang::NamedDecl*, clang::LookupResult const&) (/build/./bin/clang+0x2d91cd2)

Stack dump:
0.      Program arguments: /build/./bin/clang -cc1 -internal-isystem /build/lib/clang/5.0.0/include -nostdsysteminc -verify -fsyntax-only -std=c++11 -Wshadow-all /src/tools/clang/test/SemaCXX/warn-shadow.cpp
1.      /src/tools/clang/test/SemaCXX/warn-shadow.cpp:214:23: current parser token ';'
2.      /src/tools/clang/test/SemaCXX/warn-shadow.cpp:213:26: parsing function body 'handleLinkageSpec'
3.      /src/tools/clang/test/SemaCXX/warn-shadow.cpp:213:26: in compound statement ('{}')
/build/tools/clang/test/SemaCXX/Output/warn-shadow.cpp.script: line 1: 15595 Aborted                 (core dumped) /build/./bin/clang -cc1 -internal-isystem /build/lib/clang/5.0.0/include -nostdsysteminc -verify -fsyntax-only -std=c++11 -Wshadow-all /src/tools/clang/test/SemaCXX/warn-shadow.cpp

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: krytarowski, cfe-commits

Differential Revision: https://reviews.llvm.org/D33207

llvm-svn: 303325

7 years agotemporary disable stndup interceptor, due to r302781 being buggy
Kostya Serebryany [Thu, 18 May 2017 03:00:07 +0000 (03:00 +0000)]
temporary disable stndup interceptor, due to r302781 being buggy

llvm-svn: 303324

7 years ago[Target/X86] Remove unneeded return. NFCI.
Davide Italiano [Thu, 18 May 2017 02:36:42 +0000 (02:36 +0000)]
[Target/X86] Remove unneeded return. NFCI.

llvm-svn: 303323

7 years ago[modules] Switch from inferring owning modules based on source location to
Richard Smith [Thu, 18 May 2017 02:29:20 +0000 (02:29 +0000)]
[modules] Switch from inferring owning modules based on source location to
inferring based on the current module at the point of creation.

This should result in no functional change except when building a preprocessed
module (or more generally when using #pragma clang module begin/end to switch
module in the middle of a file), in which case it allows us to correctly track
the owning module for declarations. We can't map from FileID to module in the
preprocessed module case, since all modules would have the same FileID.

There are still a couple of remaining places that try to infer a module from a
source location; I'll clean those up in follow-up changes.

llvm-svn: 303322

7 years ago[clang-tidy] Optimize GlobList::contains
Alexander Kornienko [Thu, 18 May 2017 01:13:51 +0000 (01:13 +0000)]
[clang-tidy] Optimize GlobList::contains

With large lists of checks and large number of warnings GlobList::contains
starts being ridiculously CPU hungry, since it runs regexp match per glob.
Caching results of glob matching in a StringMap significantly speeds up check
filtering even for small GlobLists.

/tmp/q.cc:

void f() {
  int I;
  {int I;}
  {int I;}
  {int I;}
  ... // 200k times
}

Before the patch:

GlobList with 2 entries:
  $ time clang-tidy-old -checks=-*,modernize-use-override /tmp/q.cc -- -Wshadow
  200000 warnings generated.
  Suppressed 200000 warnings (200000 with check filters).

  real    0m3.826s
  user    0m3.176s
  sys     0m0.504s

GlobList with 28 entries:
  $ time clang-tidy-old -checks=-*,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,modernize-use-override /tmp/q.cc -- -Wshadow
  200000 warnings generated.
  Suppressed 200000 warnings (200000 with check filters).

  real    0m5.000s
  user    0m4.744s
  sys     0m0.060s

GlobList with 158 entries:
  $ time clang-tidy-old -checks=-*,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,modernize-use-override /tmp/q.cc -- -Wshadow
  200000 warnings generated.
  Suppressed 200000 warnings (200000 with check filters).

  real    0m13.920s
  user    0m13.636s
  sys     0m0.104s

With the patch runtime is practically independent from the length of the GlobList:
  $ time clang-tidy-new -checks=-*,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,modernize-use-override /tmp/q.cc -- -Wshadow
  200000 warnings generated.
  Suppressed 200000 warnings (200000 with check filters).

  real    0m2.300s
  user    0m2.104s
  sys     0m0.044s

llvm-svn: 303321

7 years ago[Statistics] Use the new Statistic::updateMax to atomically calculate a maximum value...
Craig Topper [Thu, 18 May 2017 01:11:52 +0000 (01:11 +0000)]
[Statistics] Use the new Statistic::updateMax to atomically calculate a maximum value statistic.

llvm-svn: 303320

7 years agoUpdate three tests I missed in r302979 and r302990
Justin Bogner [Thu, 18 May 2017 00:58:06 +0000 (00:58 +0000)]
Update three tests I missed in r302979 and r302990

llvm-svn: 303319

7 years ago[Statistics] Add a method to atomically update a statistic that contains a maximum
Craig Topper [Thu, 18 May 2017 00:51:39 +0000 (00:51 +0000)]
[Statistics] Add a method to atomically update a statistic that contains a maximum

Summary:
There are several places in the codebase that try to calculate a maximum value in a Statistic object. We currently do this in one of two ways:

  MaxNumFoo = std::max(MaxNumFoo, NumFoo);

or

  MaxNumFoo = (MaxNumFoo > NumFoo) ? MaxNumFoo : NumFoo;

The first version reads from MaxNumFoo one time and uncontionally rwrites to it. The second version possibly reads it twice depending on the result of the first compare.  But we have no way of knowing if the value was changed by another thread between the reads and the writes.

This patch adds a method to the Statistic object that can ensure that we only store if our value is the max and the previous max didn't change after we read it. If it changed we'll recheck if our value should still be the max or not and try again.

This spawned from an audit I'm trying to do of all places we uses the implicit conversion to unsigned on the Statistics objects. See my previous thread on llvm-dev https://groups.google.com/forum/#!topic/llvm-dev/yfvxiorKrDQ

Reviewers: dberlin, chandlerc, hfinkel, dblaikie

Reviewed By: chandlerc

Subscribers: llvm-commits, sanjoy

Differential Revision: https://reviews.llvm.org/D33301

llvm-svn: 303318

7 years agoThe constant expression evaluator should examine function arguments for non-constexpr...
Nick Lewycky [Wed, 17 May 2017 23:56:54 +0000 (23:56 +0000)]
The constant expression evaluator should examine function arguments for non-constexpr function calls unless the EvalInfo says to stop.

llvm-svn: 303317

7 years agoCodeGen: BlockPlacement: Add Message strings to asserts. NFC
Kyle Butt [Wed, 17 May 2017 23:44:41 +0000 (23:44 +0000)]
CodeGen: BlockPlacement: Add Message strings to asserts. NFC

Add message strings to all the unlabeled asserts in the file.

Differential Revision: https://reviews.llvm.org/D33078

llvm-svn: 303316

7 years ago[InstCombine] add test for xor-of-icmps; NFC
Sanjay Patel [Wed, 17 May 2017 23:22:52 +0000 (23:22 +0000)]
[InstCombine] add test for xor-of-icmps; NFC

This is another form of the problem discussed in D32143.

llvm-svn: 303315

7 years ago[Statistics] Use Statistic::operator+= instead of adding and assigning separately.
Craig Topper [Wed, 17 May 2017 23:22:10 +0000 (23:22 +0000)]
[Statistics] Use Statistic::operator+= instead of adding and assigning separately.

I believe this technically fixes a multithreaded race condition in this code. But my primary concern was as part of looking at removing the ability to treat Statistics like a plain unsigned. There are many weird operations on Statistics in the codebase.

llvm-svn: 303314

7 years agoRevert "[globalisel][tablegen] Import rules containing intrinsic_wo_chain."
Quentin Colombet [Wed, 17 May 2017 23:17:29 +0000 (23:17 +0000)]
Revert "[globalisel][tablegen] Import rules containing intrinsic_wo_chain."

This reverts commit r303259.

This breaks the GISel bot:
http://lab.llvm.org:8080/green/job/Compiler_Verifiers_GlobalISEL/5163/consoleFull#-134276167849ba4694-19c4-4d7e-bec5-911270d8a58c

llvm-svn: 303313

7 years ago[InstCombine] handle icmp i1 X, C early to avoid creating an unknown pattern
Sanjay Patel [Wed, 17 May 2017 22:29:40 +0000 (22:29 +0000)]
[InstCombine] handle icmp i1 X, C early to avoid creating an unknown pattern

The missing optimization for xor-of-icmps still needs to be added, but by
being more efficient (not generating unnecessary logic ops with constants)
we avoid the bug.

See discussion in post-commit comments:
https://reviews.llvm.org/D32143

llvm-svn: 303312

7 years agoAttempt to pacify ASan and UBSan reports in CrashRecovery tests
Reid Kleckner [Wed, 17 May 2017 22:23:20 +0000 (22:23 +0000)]
Attempt to pacify ASan and UBSan reports in CrashRecovery tests

llvm-svn: 303311

7 years ago[InstCombine] add test for missing icmp bool fold; NFC
Sanjay Patel [Wed, 17 May 2017 22:20:02 +0000 (22:20 +0000)]
[InstCombine] add test for missing icmp bool fold; NFC

llvm-svn: 303310

7 years ago[InstCombine] move icmp bool canonicalizations to helper; NFC
Sanjay Patel [Wed, 17 May 2017 22:15:07 +0000 (22:15 +0000)]
[InstCombine] move icmp bool canonicalizations to helper; NFC

As noted in the post-commit comments in D32143, we should be
catching the constant operand cases sooner to be more efficient
and less likely to expose a missing fold.

llvm-svn: 303309

7 years agoAMDGPU: Start defining a calling convention
Matt Arsenault [Wed, 17 May 2017 21:56:25 +0000 (21:56 +0000)]
AMDGPU: Start defining a calling convention

Partially implement callee-side for arguments and return values.
byval doesn't work properly, and most likely sret or other on-stack
return values most as well.

llvm-svn: 303308

7 years agoCodeGen: Power: Add lowering for shifts of v1i128.
Kyle Butt [Wed, 17 May 2017 21:54:41 +0000 (21:54 +0000)]
CodeGen: Power: Add lowering for shifts of v1i128.

When legalizing vector operations on vNi128, they will be split to v1i128
because that is a legal type on ppc64, but then the compiler will crash in
selection dag because it fails to select for these operations. This patch fixes
shift operations. Logical shift right and left shift can be performed in the
vector unit, but algebraic shift right requires being split.

Differential Revision: https://reviews.llvm.org/D32774

llvm-svn: 303307

7 years agoFix PR33028
Michael Liao [Wed, 17 May 2017 21:48:00 +0000 (21:48 +0000)]
Fix PR33028

- '-verify-mahcineinstrs' starts to complain allocatable live-in physical
  registers on non-entry or non-landing-pad basic blocks.
- Refactor the XBEGIN translation to define EAX on a dedicated fallback code
  path due to XABORT. Add a pseudo instruction to define EAX explicitly to
  avoid add physical register live-in.

Differential Revision: https://reviews.llvm.org/D33168

llvm-svn: 303306

7 years agoAMDGPU: Remove old intrinsic uses
Matt Arsenault [Wed, 17 May 2017 21:38:21 +0000 (21:38 +0000)]
AMDGPU: Remove old intrinsic uses

llvm-svn: 303305

7 years agoRe-submit r303225: Garbage collect dllimported symbols.
Rui Ueyama [Wed, 17 May 2017 21:36:08 +0000 (21:36 +0000)]
Re-submit r303225: Garbage collect dllimported symbols.

This reverts re-submits r303225 which was reverted in r303270 because it
broke the sanitizer-windows bot.

The reason of the failure is that we were writing dead symbols to the
symbol table. I fixed the issue.

llvm-svn: 303304

7 years agoAMDGPU: Expand frame indexes to be relative to scratch wave offset
Matt Arsenault [Wed, 17 May 2017 21:23:14 +0000 (21:23 +0000)]
AMDGPU: Expand frame indexes to be relative to scratch wave offset

In order for an arbitrary callee to access an object
in a caller's stack frame, the 32-bit offset used as
the private pointer needs to be relative to the kernel's
scratch wave offset register.

Convert to this by finding the difference from the current
stack frame and scaling by the wavefront size.

llvm-svn: 303303

7 years ago[XRay] Fix __xray_function_address on PPC reguarding local entry points.
Tim Shen [Wed, 17 May 2017 21:20:00 +0000 (21:20 +0000)]
[XRay] Fix __xray_function_address on PPC reguarding local entry points.

Reviewers: echristo, dberris

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D33266

llvm-svn: 303302

7 years agoAMDGPU: Change mubuf soffset register when SP relative
Matt Arsenault [Wed, 17 May 2017 21:02:58 +0000 (21:02 +0000)]
AMDGPU: Change mubuf soffset register when SP relative

Check the MachinePointerInfo for whether the access is
supposed to be relative to the stack pointer.

No tests because this is used in later commits implementing
calls.

llvm-svn: 303301

7 years ago[X86][AVX512] Add 512-bit vector ctlz costs + tests
Simon Pilgrim [Wed, 17 May 2017 21:02:18 +0000 (21:02 +0000)]
[X86][AVX512] Add 512-bit vector ctlz costs + tests

llvm-svn: 303300

7 years ago[llvm-pdbdump] in yaml2pdb, generate default output filename if none given
Bob Haarman [Wed, 17 May 2017 20:46:48 +0000 (20:46 +0000)]
[llvm-pdbdump] in yaml2pdb, generate default output filename if none given

Summary:
llvm-pdbdump yaml2pdb used to fail with a misleading error
message ("An I/O error occurred on the file system") if no output file
was specified. This change adds an assert to PDBFileBuilder to check
that an output file name is specified, and makes llvm-pdbdump generate
an output file name based on the input file name if no output file
name is explicitly specified.

Reviewers: amccarth, zturner

Reviewed By: zturner

Subscribers: fhahn, llvm-commits

Differential Revision: https://reviews.llvm.org/D33296

llvm-svn: 303299

7 years agoupdate the test that should have been updated in r303292. (NFC)
Dehao Chen [Wed, 17 May 2017 20:44:08 +0000 (20:44 +0000)]
update the test that should have been updated in r303292. (NFC)

llvm-svn: 303298

7 years agoAdd some helpers for manipulating BinaryStreamRefs.
Zachary Turner [Wed, 17 May 2017 20:42:52 +0000 (20:42 +0000)]
Add some helpers for manipulating BinaryStreamRefs.

llvm-svn: 303297

7 years agoAMDGPU: Make better use of op_sel with high components
Matt Arsenault [Wed, 17 May 2017 20:30:58 +0000 (20:30 +0000)]
AMDGPU: Make better use of op_sel with high components

Handle more general swizzles.

llvm-svn: 303296

7 years ago[InstSimplify] handle all icmp i1 X, C in one place; NFCI
Sanjay Patel [Wed, 17 May 2017 20:27:55 +0000 (20:27 +0000)]
[InstSimplify] handle all icmp i1 X, C in one place; NFCI

We already handled all of the new tests identically, but several
of those went through a lot of unnecessary processing before
getting folded.

Another motivation for grouping these cases together is that
InstCombine needs a similar fold. Currently, it handles the
'not' cases inefficiently which can lead to bugs as described
in the post-commit comments of:
https://reviews.llvm.org/D32143

llvm-svn: 303295

7 years ago[BinaryStream] Reduce the amount of boiler plate needed to use.
Zachary Turner [Wed, 17 May 2017 20:23:31 +0000 (20:23 +0000)]
[BinaryStream] Reduce the amount of boiler plate needed to use.

Often you have an array and you just want to use it.  With the current
design, you have to first construct a `BinaryByteStream`, and then create
a `BinaryStreamRef` from it.  Worse, the `BinaryStreamRef` holds a pointer
to the `BinaryByteStream`, so you can't just create a temporary one to
appease the compiler, you have to actually hold onto both the `ArrayRef`
as well as the `BinaryByteStream` *AND* the `BinaryStreamReader` on top of
that.  This makes for very cumbersome code, often requiring one to store a
`BinaryByteStream` in a class just to circumvent this.

At the cost of some added complexity (not exposed to users, but internal
to the library), we can do better than this.  This patch allows us to
construct `BinaryStreamReaders` and `BinaryStreamWriters` directly from
source data (e.g. `StringRef`, `MutableArrayRef<uint8_t>`, etc).  Not only
does this reduce the amount of code you have to type and make it more
obvious how to use it, but it solves real lifetime issues when it's
inconvenient to hold onto a `BinaryByteStream` for a long time.

The additional complexity is in the form of an added layer of indirection.
Whereas before we simply stored a `BinaryStream*` in the ref, we now store
both a `BinaryStream*` **and** a `std::shared_ptr<BinaryStream>`.  When
the user wants to construct a `BinaryStreamRef` directly from an
`ArrayRef` etc, we allocate an internal object that holds ownership over a
`BinaryByteStream` and forwards all calls, and store this in the
`shared_ptr<>`.  This also maintains the ref semantics, as you can copy it
by value and references refer to the same underlying stream -- the one
being held in the object stored in the `shared_ptr`.

Differential Revision: https://reviews.llvm.org/D33293

llvm-svn: 303294

7 years ago[X86][AVX512] Add 512-bit vector cttz costs + tests
Simon Pilgrim [Wed, 17 May 2017 20:22:54 +0000 (20:22 +0000)]
[X86][AVX512] Add 512-bit vector cttz costs + tests

llvm-svn: 303293

7 years agoOnly enable LiveRangeShrink for x86.
Dehao Chen [Wed, 17 May 2017 20:18:13 +0000 (20:18 +0000)]
Only enable LiveRangeShrink for x86.

Summary: Moving LiveRangeShrink to x86 as this pass is mostly useful for archtectures with great register pressure.

Reviewers: MatzeB, qcolombet

Reviewed By: qcolombet

Subscribers: jholewinski, jyknight, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D33294

llvm-svn: 303292

7 years agoAMDGPU: Try to use op_sel when selecting packed instructions
Matt Arsenault [Wed, 17 May 2017 20:00:00 +0000 (20:00 +0000)]
AMDGPU: Try to use op_sel when selecting packed instructions

Avoids instructions to pack a vector when the source is really
a scalar being broadcast.

Also be smarter and look for per-component fneg.

Doesn't yet handle scalar from upper half of register
or other swizzles.

llvm-svn: 303291

7 years ago[X86] Split ctpop/ctlz/cttz cost tests
Simon Pilgrim [Wed, 17 May 2017 19:57:20 +0000 (19:57 +0000)]
[X86] Split ctpop/ctlz/cttz cost tests

This will make things a lot easier to test all the permutations of avx512

llvm-svn: 303290

7 years agoReapply part of rL303015, fixing just the DynamicLibaryTest. Add
Dimitry Andric [Wed, 17 May 2017 19:46:49 +0000 (19:46 +0000)]
Reapply part of rL303015, fixing just the DynamicLibaryTest.  Add
retrieval of the original argv[0] from the GoogleTest framework, so it
is more likely the correct main executable path is found.

llvm-svn: 303289

7 years ago[WebAssembly][NFC] Update expected testsuite failures for newly passing tests
Jacob Gravelle [Wed, 17 May 2017 19:45:22 +0000 (19:45 +0000)]
[WebAssembly][NFC] Update expected testsuite failures for newly passing tests

Summary: r303050 fixes crashes when calling scalarizeMaskedMemIntrin pass from WebAssembly backend. This updates expected test failures for that.

Reviewers: sbc100

Subscribers: jfb, llvm-commits, dschuff

Differential Revision: https://reviews.llvm.org/D33295

llvm-svn: 303288

7 years agoAMDGPU: Use appropriate soffset for spilling
Matt Arsenault [Wed, 17 May 2017 19:37:57 +0000 (19:37 +0000)]
AMDGPU: Use appropriate soffset for spilling

This needs to be the frame offset register, and not the global
scratch wave offset register. For kernels, these are the same.

llvm-svn: 303287

7 years ago[Ubsan]Remove unused link libraries.
Leo Li [Wed, 17 May 2017 19:37:27 +0000 (19:37 +0000)]
[Ubsan]Remove unused link libraries.

Summary: Remove unused link libraries metioned in D33216.

Reviewers: llvm-commits, vsk

Reviewed By: vsk

Subscribers: vsk, kubamracek, mgorny, filcab

Differential Revision: https://reviews.llvm.org/D33292

llvm-svn: 303286

7 years agoRevert r303015, because it has the unintended side effect of breaking
Dimitry Andric [Wed, 17 May 2017 19:33:10 +0000 (19:33 +0000)]
Revert r303015, because it has the unintended side effect of breaking
driver-mode recognition in clang (this is because the sysctl method
always returns one and only one executable path, even for an executable
with multiple links):

Fix DynamicLibraryTest.cpp on FreeBSD and NetBSD

Summary:

After rL301562, on FreeBSD the DynamicLibrary unittests fail, because
the test uses getMainExecutable("DynamicLibraryTests", Ptr), and since
the path does not contain any slashes, retrieving the main executable
will not work.

Reimplement getMainExecutable() for FreeBSD and NetBSD using sysctl(3),
which is more reliable than fiddling with relative or absolute paths.

Also add retrieval of the original argv[] from the GoogleTest framework,
to use as a fallback for other OSes.

Reviewers: emaste, marsupial, hans, krytarowski

Reviewed By: krytarowski

Subscribers: krytarowski, llvm-commits

Differential Revision: https://reviews.llvm.org/D33171

llvm-svn: 303285

7 years agoAMDGPU: Fix min3/max3 combines for f16/i16
Matt Arsenault [Wed, 17 May 2017 19:25:06 +0000 (19:25 +0000)]
AMDGPU: Fix min3/max3 combines for f16/i16

Fix missing instruction definitions for min3/max3.

llvm-svn: 303284

7 years ago[X86][AVX512] Add 512-bit vector bitreverse costs + tests
Simon Pilgrim [Wed, 17 May 2017 19:20:20 +0000 (19:20 +0000)]
[X86][AVX512] Add 512-bit vector bitreverse costs + tests

llvm-svn: 303283

7 years agoAdd back a dummy --use-processes.
Rafael Espindola [Wed, 17 May 2017 18:55:01 +0000 (18:55 +0000)]
Add back a dummy --use-processes.

Some bots are using it.

llvm-svn: 303282

7 years agoMake next/prev/advance/distance operations on iterators be constexpr. I missed this...
Marshall Clow [Wed, 17 May 2017 18:51:36 +0000 (18:51 +0000)]
Make next/prev/advance/distance operations on iterators be constexpr. I missed this when I implemented the rest of P0031R0

llvm-svn: 303281

7 years agoAlways use the multiprocess module.
Rafael Espindola [Wed, 17 May 2017 18:20:01 +0000 (18:20 +0000)]
Always use the multiprocess module.

This seems to work on freebsd and openbsd these days.

llvm-svn: 303280

7 years agoRe-land r303274: "[CrashRecovery] Use SEH __try instead of VEH when available"
Reid Kleckner [Wed, 17 May 2017 18:16:17 +0000 (18:16 +0000)]
Re-land r303274: "[CrashRecovery] Use SEH __try instead of VEH when available"

We have to check gCrashRecoveryEnabled before using __try.

In other words, SEH works too well and we ended up recovering from
crashes in implicit module builds that we weren't supposed to. Only
libclang is supposed to enable CrashRecoveryContext to allow implicit
module builds to crash.

llvm-svn: 303279

7 years agoFix error string set in AddName to take a StringRef.
Ted Woodward [Wed, 17 May 2017 17:48:55 +0000 (17:48 +0000)]
Fix error string set in AddName to take a StringRef.

llvm-svn: 303278

7 years ago[GISel]: Fix undefined behavior in IRTranslator
Aditya Nandakumar [Wed, 17 May 2017 17:41:55 +0000 (17:41 +0000)]
[GISel]: Fix undefined behavior in IRTranslator

Make sure IRTranslator->MachineIRBuilder->DebugLoc doesn't
outlive the DILocation. Clear it at the end of
IRTranslator::runOnMachineFunction

llvm-svn: 303277

7 years agoGenerate ubsan shared libraries.
Leo Li [Wed, 17 May 2017 17:17:41 +0000 (17:17 +0000)]
Generate ubsan shared libraries.

Summary: Those libraries are required by aosp (https://android.googlesource.com/platform/prebuilts/clang/host/linux-x86/+/master/Android.mk). Currenly the shared libraries are generated by aosp Makefile system. We are looking forward to using cmake to generate them.

Reviewers: llvm-commits, vsk

Reviewed By: vsk

Subscribers: filcab, vsk, srhines, kubamracek, mgorny, krytarowski

Differential Revision: https://reviews.llvm.org/D33216

llvm-svn: 303276

7 years agoRevert "[CrashRecovery] Use SEH __try instead of VEH when available"
Reid Kleckner [Wed, 17 May 2017 17:15:00 +0000 (17:15 +0000)]
Revert "[CrashRecovery] Use SEH __try instead of VEH when available"

This reverts commit r303274, it appears to break some clang tests.

llvm-svn: 303275

7 years ago[CrashRecovery] Use SEH __try instead of VEH when available
Reid Kleckner [Wed, 17 May 2017 17:02:16 +0000 (17:02 +0000)]
[CrashRecovery] Use SEH __try instead of VEH when available

Summary:
It avoids problems when other libraries raise exceptions. In particular,
OutputDebugString raises an exception that the debugger is supposed to
catch and suppress. VEH kicks in first right now, and that is entirely
incorrect.

Unfortunately, GCC does not support SEH, so I've kept the old buggy VEH
codepath around. We could fix it with SetUnhandledExceptionFilter, but
that is not per-thread, so a well-behaved library shouldn't set it.

Reviewers: zturner

Subscribers: llvm-commits, mgorny

Differential Revision: https://reviews.llvm.org/D33261

llvm-svn: 303274

7 years agoInclude setjmp.h unconditionally in asan_test_utils.h
Hans Wennborg [Wed, 17 May 2017 16:44:08 +0000 (16:44 +0000)]
Include setjmp.h unconditionally in asan_test_utils.h

It's used in asan_test.cc also on Windows, and my build was failing
with:

C:/src/llvm/projects/compiler-rt/lib/asan/tests/asan_test.cc:549:28: error: unknown type name 'jmp_buf'
NOINLINE void LongJmpFunc1(jmp_buf buf) {
                           ^
C:/src/llvm/projects/compiler-rt/lib/asan/tests/asan_test.cc:569:10: error: unknown type name 'jmp_buf'
  static jmp_buf buf;
         ^

I couldn't find what changed to make this not work anymore, but this should fix
it.

llvm-svn: 303273

7 years agoWorkaround for incorrect Win32 header on GCC.
Zachary Turner [Wed, 17 May 2017 16:39:33 +0000 (16:39 +0000)]
Workaround for incorrect Win32 header on GCC.

llvm-svn: 303272

7 years ago[CodeView] Simplify the use of visiting type records & streams.
Zachary Turner [Wed, 17 May 2017 16:39:06 +0000 (16:39 +0000)]
[CodeView] Simplify the use of visiting type records & streams.

There is often a lot of boilerplate code required to visit a type
record or type stream.  The #1 use case is that you have a sequence
of bytes that represent one or more records, and you want to
deserialize each one, switch on it, and call a callback with the
deserialized record that the user can examine.  Currently this
requires at least 6 lines of code:

  codeview::TypeVisitorCallbackPipeline Pipeline;
  Pipeline.addCallbackToPipeline(Deserializer);
  Pipeline.addCallbackToPipeline(MyCallbacks);

  codeview::CVTypeVisitor Visitor(Pipeline);
  consumeError(Visitor.visitTypeRecord(Record));

With this patch, it becomes one line of code:

  consumeError(codeview::visitTypeRecord(Record, MyCallbacks));

This is done by having the deserialization happen internally inside
of the visitTypeRecord function.  Since this is occasionally not
desirable, the function provides a 3rd parameter that can be used
to change this behavior.

Hopefully this can significantly reduce the barrier to entry
to using the visitation infrastructure.

Differential Revision: https://reviews.llvm.org/D33245

llvm-svn: 303271

7 years agoRevert r303225 "Garbage collect dllimported symbols."
Hans Wennborg [Wed, 17 May 2017 16:22:03 +0000 (16:22 +0000)]
Revert r303225 "Garbage collect dllimported symbols."

and follow-up r303226 "Fix Windows buildbots."

This broke the sanitizer-windows buildbot.

> Previously, the garbage collector (enabled by default or by explicitly
> passing /opt:ref) did not kill dllimported symbols. As a result,
> dllimported symbols could be added to resulting executables' dllimport
> list even if no one was actually using them.
>
> This patch implements dllexported symbol garbage collection. Just like
> COMDAT sections, dllimported symbols now have Live bits to manage their
> liveness, and MarkLive marks reachable dllimported symbols.
>
> Fixes https://bugs.llvm.org/show_bug.cgi?id=32950
>
> Reviewers: pcc
>
> Subscribers: llvm-commits
>
> Differential Revision: https://reviews.llvm.org/D33264

llvm-svn: 303270

7 years ago[BitVector] Add find_[first,last]_[set,unset]_in.
Zachary Turner [Wed, 17 May 2017 15:49:45 +0000 (15:49 +0000)]
[BitVector] Add find_[first,last]_[set,unset]_in.

A lot of code is duplicated between the first_last and the
next / prev methods.  All of this code can be shared if they
are implemented in terms of find_first_in(Begin, End) etc,
in which case find_first = find_first_in(0, Size) and find_next
is find_first_in(Prev+1, Size), with similar reductions for
the other methods.

Differential Revision: https://reviews.llvm.org/D33104

llvm-svn: 303269

7 years agoMark the copy constructor and move
Marshall Clow [Wed, 17 May 2017 15:30:01 +0000 (15:30 +0000)]
Mark the copy constructor and move
constructor to be constexpr. This only works when the contained type has a constexpr copy/move ctor.

llvm-svn: 303268

7 years agoclang-cl: Fix path-based MSVC version detection
Hans Wennborg [Wed, 17 May 2017 15:27:44 +0000 (15:27 +0000)]
clang-cl: Fix path-based MSVC version detection

The code wasn't taking the architecture-specific subdirectory into
account.

Differential Revision: https://reviews.llvm.org/D33258

llvm-svn: 303267

7 years agoRevert "Implement tls scanning for darwin LSan"
Francis Ricci [Wed, 17 May 2017 15:25:41 +0000 (15:25 +0000)]
Revert "Implement tls scanning for darwin LSan"

This reverts r303262, due to TSan buildbot breakages.

llvm-svn: 303266

7 years ago[Frontend] Remove unused TemporaryFiles
Krasimir Georgiev [Wed, 17 May 2017 14:51:44 +0000 (14:51 +0000)]
[Frontend] Remove unused TemporaryFiles

Summary:
OnDiskData.TemporaryFiles is filled only by ASTUnit::addTemporaryFile, which is
dead. Also these files are used nowhere in the frontend nor in libclang.

Reviewers: bkramer, ilya-biryukov

Reviewed By: bkramer, ilya-biryukov

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D33270

llvm-svn: 303265

7 years agoChange getChecksFilter() interface to hide implementation details.
Alexander Kornienko [Wed, 17 May 2017 14:39:47 +0000 (14:39 +0000)]
Change getChecksFilter() interface to hide implementation details.

llvm-svn: 303264

7 years ago[clang-tidy] Replace matchesName with hasName where no regex is needed
Alexander Kornienko [Wed, 17 May 2017 14:39:39 +0000 (14:39 +0000)]
[clang-tidy] Replace matchesName with hasName where no regex is needed

llvm-svn: 303263

7 years agoImplement tls scanning for darwin LSan
Francis Ricci [Wed, 17 May 2017 14:35:17 +0000 (14:35 +0000)]
Implement tls scanning for darwin LSan

Summary:
This required for any users who call exit() after creating
thread-specific data, as tls destructors are only called when
pthread_exit() or pthread_cancel() are used. This should also
match tls behavior on linux.

Getting the base address of the tls section is straightforward,
as it's stored as a section offset in %gs. The size is a bit trickier
to work out, as there doesn't appear to be any official documentation
or source code referring to it. The size used in this patch was determined
by taking the difference between the base address and the address of the
subsequent memory region returned by vm_region_recurse_64, which was
1024 * sizeof(uptr) on all threads except the main thread, where it was
larger. Since the section must be the same size on all of the threads,
1024 * sizeof(uptr) seemed to be a reasonable size to use, barring
a more programtic way to get the size.

1024 seems like a reasonable number, given that PTHREAD_KEYS_MAX
is 512 on darwin, so pthread keys will fit inside the region while
leaving space for other tls data. A larger size would overflow the
memory region returned by vm_region_recurse_64, and a smaller size
wouldn't leave room for all the pthread keys. In addition, the
stress test added here passes, which means that we are scanning at
least the full set of possible pthread keys, and probably
the full tls section.

Reviewers: alekseyshl, kubamracek

Subscribers: krytarowski, llvm-commits

Differential Revision: https://reviews.llvm.org/D33215

llvm-svn: 303262