When you assign a shared_ptr, the deleter gets called and assigned. In this routine, the assignment happens inside a critical section, which could (potentially) lead to a deadlock, if the deleter did something wonky. Now we swap the old value with an (empty) temporary shared_ptr, and then let the temporary delete the old value when it goes out of scope (after the lock has been released).  This should fix PR#27724. Thanks to Hans Boehm for the bug report and the suggested fix.

llvm-svn: 269965

llvm-svn: 269964

llvm-svn: 269963

llvm-svn: 269962

Summary:
-fembed-bitcode was only checking for old style LTO flag (-flto) but not
considering the new -flto= style option. That makes clang output bitcode
embedded in bitcode object when using -flto= and -fembed-bitcode= together.
Now clang should output normal bitcode file when using LTO and ignores
-fembed-bitcode option.

Reviewers: joker.eph

Subscribers: joker.eph, cfe-commits

Differential Revision: http://reviews.llvm.org/D20374

llvm-svn: 269961

llvm-svn: 269957

This is used to find nested classes. For a nested name foo::bar::qux we
will first look up foo::bar::qux, then foo::bar, then foo unless we find
a result. This is used to support nested classes which are not part of
the index but can only be used if the header for the parent context is
included.

Differential Revision: http://reviews.llvm.org/D20372

llvm-svn: 269956

llvm-svn: 269955

llvm-svn: 269954

This re-applies r269845, r269846, and r269850 with an included fix for a crash reported by zturner.

llvm-svn: 269953

The result of the test was C::D(), not D::D().

Reviewers: cfe-commits, klimek

Differential Revision: http://reviews.llvm.org/D20356

llvm-svn: 269952

llvm-svn: 269951

We can chain bcnt instructions together, so
any width popcnt is pretty fast.

llvm-svn: 269950

with an additional fix to make RegAllocFast ignore undef physreg uses. It would
previously get confused about the "push %eax" instruction's use of eax. That
method for adjusting the stack pointer is used in X86FrameLowering::emitSPUpdate
as well, but since that runs after register-allocation, we didn't run into the
RegAllocFast issue before.

llvm-svn: 269949

For some reason an assert is now hit when a valid chain
is not returned, so return the entry chain.

llvm-svn: 269948

Summary:
dlopen and dlclose interception are broken when RUNPATH is used:
https://llvm.org/bugs/show_bug.cgi?id=27790

Reviewers: kutuzov.viktor.84, samsonov, dvyukov, eugenis, kcc

Subscribers: kcc, filcab, kubabrecka, compnerd, llvm-commits

Differential Revision: http://reviews.llvm.org/D20333

llvm-svn: 269947

This just clang formats and cleans comments in an area I am about to
post a patch for review.

llvm-svn: 269946

If the second pointer in a multi-pointer instruction is
a constant, we can replace the type.

llvm-svn: 269945

Fix minor bugs and uses of undef which break when
pointer related optimization passes are run.

llvm-svn: 269944

llvm-svn: 269943

llvm-svn: 269941

Differential Revision: http://reviews.llvm.org/D20101

llvm-svn: 269939

Use register class that does not include them when looking
for unallocated registers.

This is hit by the udiv v8i64 test in the opencl integer
conformance test, and takes a few seconds to compile in
a debug build so no test included.

llvm-svn: 269938

llvm-svn: 269937

Reviewers: alexfh, aaron.ballman

Subscribers: thakis, cfe-commits, klimek

Differential Revision: http://reviews.llvm.org/D20369

llvm-svn: 269936

Teach Sema::MergeFunctionDecl to properly check for an out-of-line definition of a function that is declared as =default in its class definition.

First part of PR27699.

Patch by Cristina Cristescu!

Reviewed by Richard Smith and me.

llvm-svn: 269935

Clang follow-up to r269933.

llvm-svn: 269934

llvm-svn: 269933

llvm-svn: 269932

llvm-svn: 269931

Don't expand divisions by constants if it would require multiple instructions.
The current assumption is that engines will perform the desired optimizations.

llvm-svn: 269930

llvm-svn: 269929

Reviewers: alexfh, aaron.ballman

Subscribers: aaron.ballman, cfe-commits

Differential Revision: http://reviews.llvm.org/D20367

llvm-svn: 269928

Summary: [clang-include-fixer] Added Vim integration for clang-include-fixer.

Reviewers: hokein, bkramer

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D20329

llvm-svn: 269927

llvm-svn: 269926

llvm-svn: 269925

Summary: [clang-format] Make formatReplacements() also sort #includes.

Reviewers: bkramer, djasper

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D20362

llvm-svn: 269924

This typically happens when the user didn't setup include paths correctly
and the fixer starts adding garbage includes. Avoid that. Disable the error
limit though, as we might hit that easily with missing includes and still
want to fix those cases.

llvm-svn: 269923

Summary:
The ordering of registers in BinaryRRF instructions are wrong, and
affects the copysign instruction (CPSDR). This results in the wrong
magnitude and sign being set.

Author: zhanjunl

Reviewers: kbarton, uweigand

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D20308

llvm-svn: 269922

llvm-svn: 269921