llvm-svn: 267016

These ensure that operand array has at least one element and it is the
self-reference.

llvm-svn: 267015

The decl is in LoopUtils.h.  I think that this was added to
LoopVersioningLICM.cpp by mistake.

llvm-svn: 267014

"Into" was misleading.  I am also planning to use this helper to look
for loop metadata and return the argument, so find seems like a better
name.

llvm-svn: 267013

It can be made redundant with getRelExpr.

llvm-svn: 267012

Summary:
Checker to validate string constructor parameters.

A common mistake is to swap parameter for the fill-constructor.
```
  std::string str('x', 4);
  std::string str('4', x);
```

Reviewers: alexfh

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19146

llvm-svn: 267011

llvm-svn: 267010

Summary:
This checker is validating suspicious usage of string compare functions.

Example:
```
  if (strcmp(...))       // Implicitly compare to zero
  if (!strcmp(...))      // Won't warn
  if (strcmp(...) != 0)  // Won't warn
```

This patch was checked over large amount of code.
There is three checks:
  [*] Implicit comparator to zero (coding-style, many warnings found),
  [*] Suspicious implicit cast to non-integral (bugs!?, almost none found),
  [*] Comparison to suspicious constant (bugs!?, found two cases),

Example:
[[https://github.com/kylepjohnson/sigma/blob/master/sigma/native-installers/debian/dependencies/files/opt/sigma/E/HEURISTICS/che_to_precgen.c |
https://github.com/kylepjohnson/sigma/blob/master/sigma/native-installers/debian/dependencies/files/opt/sigma/E/HEURISTICS/che_to_precgen.c]]

```
      else if(strcmp(id, "select") == 0)
      {
         array->array[i].key1 = 25;
      }
      else if(strcmp(id, "sk") == 28)      // BUG!?
      {
         array->array[i].key1 = 20;
      }
```

Reviewers: alexfh

Subscribers: Eugene.Zelenko, cfe-commits

Differential Revision: http://reviews.llvm.org/D18703

llvm-svn: 267009

Differential revision: http://reviews.llvm.org/D19348

llvm-svn: 267008

The gold plugin logic for common symbols is a little bit convoluted
as the plugin API has not an explicit way to update the alignment.
In gold, then, we need to keep the bitcode symbol @a around because
that's the only way to get the alignment right in the final object.

In lld, this is not true. We already have all the informations we
need about common symbols (size/alignment) so we don't have to
keep the existing symbol and pass it to the mover.

llvm-svn: 267007

This builds on 266999 which made FindAvailableValue do the right thing.  Tests included show the newly enabled transforms and those which disabled either due to conservatism or correctness requirements.

llvm-svn: 267006

llvm-svn: 267005

Before this fix, DILexicalBlockFile entries were skipped only in some cases and were not in other cases.

Differential Revision: http://reviews.llvm.org/D18724

llvm-svn: 267004

Summary:
Little cleanup to lift-out and to remove some frequently used
ast-matchers.

Some of theses matchers are candidates to be lifted to ASTMatchers.h.

Reviewers: alexfh

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D19200

llvm-svn: 267003

It was only used there.

llvm-svn: 267002

expr_log is only conditionally used via preprocessing.  Ensure that we guard the
definition accordingly.  NFC.

llvm-svn: 267001

Add explicit casts for function pointer to void * for %p conversion.  NFC.

llvm-svn: 267000

This change adds a couple of test cases to make sure FindAvailableLoadedValue does the right thing.  At the moment, the code added is dead, but separating it makes follow on changes far more obvious.

llvm-svn: 266999

llvm-svn: 266998

llvm-svn: 266997

Because of X86 instead of x86 is was masked as unsupported everywhere.

llvm-svn: 266996

We were assuming that only linkonce_odr GVs were lazy linked.

llvm-svn: 266995

The field "pid" in ReportThread is used to store the OS-provided thread ID (pthread_self or gettid). The name "pid" suggests it's a process ID, which it isn't. Let's rename it.

Differential Revision: http://reviews.llvm.org/D19365

llvm-svn: 266994

llvm-svn: 266993

Summary:
Clang-tidy modernize-raw-string-literal check crashes on run-time assert while it is evaluating compiler predefined identifiers such as
- __FUNCTION__
- __func__
- __PRETTY_FUNCTION__

Check is asserting because it cannot find opening quote for such string literal. It occurs only on debug build config.
I think that it would be good to prune such cases by crossing off predefined expressions - there is no need to evaluate such matches.

Reviewers: LegalizeAdulthood, alexfh

Subscribers: cfe-commits

Patch by Marek Jenda!

Differential Revision: http://reviews.llvm.org/D19331

llvm-svn: 266992

Let's use pthread_threadid_np which returns a more reasonable ID than pthread_self (which is actually a stack pointer). The numbers from pthread_threadid_np are already used in other tools, e.g. in LLDB, and often appear in logs, so it's much more useful than pthread_self.

Differential Revision: http://reviews.llvm.org/D18951

llvm-svn: 266991

Differential Revision: http://reviews.llvm.org/D15009

llvm-svn: 266990

llvm-svn: 266989

Differential Revision: http://reviews.llvm.org/D14915

llvm-svn: 266988

Differential Revision: http://reviews.llvm.org/D19330

llvm-svn: 266987

Patch by Clement Courbet

llvm-svn: 266986

Differential Revision: http://reviews.llvm.org/D14822

llvm-svn: 266985

Reviewers: nhaustov, tstellarAMD

Subscribers: arsenm

Differential Revision: http://reviews.llvm.org/D19317

llvm-svn: 266984

[Clang][AVX512][BuiltIn] Adding intrinsics of VGATHER{DPS|DPD} , VPGATHER{QD|QQ|DD|DQ} and VGATHERPF{0|1}{DPS|QPS|DPD|QPD} instruction set .

Differential Revision: http://reviews.llvm.org/D19224

llvm-svn: 266983

llvm-svn: 266982

A DenseMap doesn't store the hashes, so it needs to recompute them when
the table is resized.

In some applications the hashing cost is noticeable. That is the case
for example in lld for symbol names (StringRef).

This patch adds a templated structure that can wraps any value that can
go in a DenseMap and caches the hash.

llvm-svn: 266981

Differential Revision: http://reviews.llvm.org/D18855

llvm-svn: 266980

llvm-svn: 266979

llvm-svn: 266978

[mips][microMIPS] Implement LL, SC, MOVEP, ROTR, ROTRV and SYSCALL instructions and add tests for LWM32 and SWM32
Differential Revision: http://reviews.llvm.org/D19150

llvm-svn: 266977