Summary:
Sometimes, bitsets could get really large (>300k entries) and
we might want to drop a check, as it would have a too much cost.

Adding a flag to control how much penalty are we willing to pay
for bitsets.

Reviewers: kcc

Differential Revision: https://reviews.llvm.org/D23088

llvm-svn: 277556

llvm-svn: 277555

[sanitizer] refactor TransferBatch to hide the implementation. NFC expected. Second attempt after failed r276383 which was reverted.

llvm-svn: 277554

Summary: Depends on D23072

Reviewers: george.burgess.iv

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23076

llvm-svn: 277553

Fixes test failures after r277542 on systems that don't have
CUDA installed.

llvm-svn: 277552

Move those two options to llc:

The options in CommandFlags.h are shared by dsymutil, gold, llc,
llvm-dwp, llvm-lto, llvm-mc, lto, opt.

-stop-after/-start-after only affect codegen passes however only gold and llc
actually create codegen passes and I believe these flags to be only
useful for users of llc. For the other tools they are just highly
confusing: -stop-after claims to "Stop compilation after a specific
pass" which is not true in the context of the "opt" tool.

Differential Revision: https://reviews.llvm.org/D23050

llvm-svn: 277551

As suggested by Matt Arsenault in post-commit review.

llvm-svn: 277550

Leftover from D22686; the passes can handle all the instructions
unconditionally; only isel needs to care whether to generate them.

llvm-svn: 277549

This change should have been submitted with that commit.

llvm-svn: 277548

Correct two comments that do not match the current behavior of the checker.

A patch by Alexander Droste!

Differential Revision: https://reviews.llvm.org/D22670

llvm-svn: 277547

[scudo] add NORETURN to the declaration of dieWithMessage; this should fix a warning in lib/scudo/scudo_termination.cpp

llvm-svn: 277546

I examined a few PDBs and all of them treated pages for stream 0
are unused, thus they were unmarked in their free page bitmap.
I think we should do the same thing for compatibility.

Differential Revision: https://reviews.llvm.org/D23047

llvm-svn: 277545

llvm-svn: 277544

Kicks off the implementation of wasm SIMD128 support (spec:
https://github.com/stoklund/portable-simd/blob/master/portable-simd.md),
adding support for add, sub, mul for i8x16, i16x8, i32x4, and f32x4.

The spec is WIP, and might change in the near future.

Patch by João Porto

Differential Revision: https://reviews.llvm.org/D22686

llvm-svn: 277543

This makes clang's libdevice selection match that of NVCC as described in
http://docs.nvidia.com/cuda/libdevice-users-guide/basic-usage.html#version-selection

If required libdevice variant is not found, driver now fails with an error.

Differential Revision: https://reviews.llvm.org/D23037

llvm-svn: 277542

In this particular example we wouldn't want the smmls anyway (the value is
actually unused), but in general smmls does not provide the required flags
register so if that SUBE result is used we can't replace it.

llvm-svn: 277541

Fixed the last incorrect uses of llvm_unreachable() in the code
which were actually just cases of errors in the input Archives.

llvm-svn: 277540

Summary:
This patch is fixing the build bot broken for a missing dependency.

The missing dependency is breaking "shared" build.

```
./mpi/TypeMismatchCheck.cpp:
  #include "clang/StaticAnalyzer/Checkers/MPIFunctionClassifier.h"
```

I'm not a fan of that fix. It's brining a strange dependency.

Reviewers: alexfh

Subscribers: llvm-commits, chrisha

Differential Revision: https://reviews.llvm.org/D23093

llvm-svn: 277539

Clean-up before changing this to allow folds for vectors.

llvm-svn: 277538

Differential Revision: https://reviews.llvm.org/D23042

llvm-svn: 277537

Summary:
Currently, the Scudo Hardened Allocator only gets its flags via the SCUDO_OPTIONS environment variable.
With this patch, we offer the opportunity for programs to define their own options via __scudo_default_options() which behaves like __asan_default_options() (weak symbol).
A relevant test has been added as well, and the documentation updated accordingly.
I also used this patch as an opportunity to rename a few variables to comply with the LLVM naming scheme, and replaced a use of Report with dieWithMessage for consistency (and to avoid a callback).

Reviewers: llvm-commits, kcc

Differential Revision: https://reviews.llvm.org/D23018

llvm-svn: 277536

llvm-svn: 277535

Reviewers: tejohnson, eraman

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D22980

llvm-svn: 277534

There were issues with simply reporting AttrUnknown on
previously-unknown values in CFLAnders. So, we now act *entirely*
conservatively for values we haven't seen before. As in the prior patch
(r277362), writing a lit test for this isn't exactly trivial. If someone
wants a test badly, I'm willing to try to write one.

Patch by Jia Chen.

Differential Revision: https://reviews.llvm.org/D23077

llvm-svn: 277533

This is an undocumented bfd feature. It is reasonable for making the
scripts a bit more readable.

llvm-svn: 277532

Also ld.bfd and ld.gold ignore this options. I hit this one in
the wild, and just ignoring it's trivial, so, let's do it.

llvm-svn: 277531

Summary: We really want to move towards MemoryLocOrCall (or fix AA) everywhere, but for now, this lets us have a single instructionClobbersQuery.

Reviewers: george.burgess.iv

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D23072

llvm-svn: 277530

BitVector::extend initializes extended bits as true by default.
That is not desirable because new pages should be initially free.

Differential Revision: https://reviews.llvm.org/D23048

llvm-svn: 277529

llvm-svn: 277528

llvm-svn: 277527

Summary:
In the synopsis in C++11 subclause 28.8 [re.regex], `basic_regex` is
specified to have member typedefs `traits_type` and `string_type`. This
change adds them to libc++.

Reviewers: mclow.lists, rsmith, hubert.reinterpretcast

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D22698

Patch by Jason Liu!

llvm-svn: 277526

As agreed in post-commit review of r265388, I'm switching the flag to
its original value until the 90% runtime performance regression on
SingleSource/Benchmarks/Stanford/Bubblesort is addressed.

llvm-svn: 277524

Summary:
Use a set rather than a vector of defined special member functions so
that multiple declarations of the same function are only counted once.

Move some private static member functions into the cpp file.

Run clang-format on header.

Reviewers: ericLemanissier, Prazek, aaron.ballman

Subscribers: Prazek, cfe-commits, nemanjai

Projects: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D23008

llvm-svn: 277523

Fix a crash under -Wthread-safety when finding the destructor for a
lifetime-extending reference.

A patch by Nandor Licker!

Differential Revision: https://reviews.llvm.org/D22419

llvm-svn: 277522

LLI already supported passing multiple input modules to MCJIT via the
-extra-module option. This patch adds the plumbing to pass these modules to
the OrcLazy JIT too.

This functionality will be used in an upcoming test case for weak symbol
handling.

llvm-svn: 277521

Also added test case to verify IR changes done by NVPTXGenericToNVVM pass.

Differential Revision: https://reviews.llvm.org/D22837

llvm-svn: 277520

Summary:
These instructions where not supported on my win7 computer.
They were happening on strstr when building chrome unittests with asan.

Reviewers: rnk

Subscribers: llvm-commits, chrisha

Differential Revision: https://reviews.llvm.org/D23081

llvm-svn: 277519

Summary:
On my install of Windows 10, RaiseException is a tail call to
kernelbase!RaiseException. Obviously, we fail to intercept that.
Instead, try hooking at the ntdll!RtlRaiseException layer. It is
unlikely that this layer will contain control flow.

Intercepting at this level requires adding a decoding for
'LEA ESP, [ESP + 0xXXXXXXXX]', which is a really obscure way to write
'SUB ESP, 0xXXXXXXXX' that avoids clobbering EFLAGS.

Reviewers: etienneb

Subscribers: llvm-commits, kubabrecka

Differential Revision: https://reviews.llvm.org/D23046

llvm-svn: 277518

llvm-svn: 277517

This check verifies if buffer type and MPI (Message Passing Interface)
datatype pairs match. All MPI datatypes defined by the MPI standard (3.1)
are verified by this check. User defined typedefs, custom MPI datatypes and
null pointer constants are skipped, in the course of verification.

Instructions on how to apply the check can be found at:
https://github.com/0ax1/MPI-Checker/tree/master/examples

Patch by Alexander Droste!

Differential revision: https://reviews.llvm.org/D21962

llvm-svn: 277516