parsing a trailing-return-type of a (function pointer) variable declaration.

llvm-svn: 324151

GNU linkers have this option.

Differential Revision: https://reviews.llvm.org/D42858

llvm-svn: 324150

Summary:
Small NFC change to change the name of the function used getting and setting
the alignment of a memset.

llvm-svn: 324148

This is running pre-legalize, we should try to use target independent nodes. This will give the best opportunity for target independent optimizations.

llvm-svn: 324147

Differential Revision: https://reviews.llvm.org/D42823

llvm-svn: 324146

Differential Revision: https://reviews.llvm.org/D42865

llvm-svn: 324145

Without extra instructions and uses, swapMayExposeCSEOpportunities() would change
the icmp (as seen in the check lines), so we were not actually testing patterns 
that should be handled by D41480.

llvm-svn: 324143

llvm-svn: 324142

Differential Revision: https://reviews.llvm.org/D42859

llvm-svn: 324141

Use NULL instead of nullptr in invalid-pointer-pairs-compare-null.cc; nullptr is not available on older Darwin systems.

llvm-svn: 324136

llvm-svn: 324135

Summary:
Clang incorrectly reports empty unions as having a unique object representation. However, this is not correct since `sizeof(EmptyUnion) == 1` AKA it has 8 bits of padding. Therefore it should be treated the same as an empty struct and report `false`.

@erichkeane also suggested this fix should be merged into the 6.0 release branch, so the initial release of `__has_unique_object_representations` is as bug-free as possible. 

Reviewers: erichkeane, rsmith, aaron.ballman, majnemer

Reviewed By: erichkeane

Subscribers: cfe-commits, erichkeane

Differential Revision: https://reviews.llvm.org/D42863

llvm-svn: 324134

llvm-svn: 324133

libprotobuf-mutator accepts protobufs with missing fields, which means
clang-proto-fuzzer does as well.  clang-proto-to-cxx should match this
behavior.

llvm-svn: 324132

Summary:
This is an alternative approach to D42014 after some
investigation by stephanemoore@ and myself.

Previously, the format parameter `BinPackParameters` controlled both
C function parameter list bin-packing and Objective-C protocol conformance
list bin-packing.

We found in the Google style, some teams were changing
`BinPackParameters` from its default (`true`) to `false` so they could
lay out Objective-C protocol conformance list items one-per-line
instead of bin-packing them into as few lines as possible.

To allow teams to use one-per-line Objective-C protocol lists without
changing bin-packing for other areas like C function parameter lists,
this diff introduces a new LibFormat parameter
`ObjCBinPackProtocolList` to control the behavior just for ObjC
protocol conformance lists.

The new parameter is an enum which defaults to `Auto` to keep the
previous behavior (delegating to `BinPackParameters`).

Depends On D42649

Test Plan: New tests added. make -j12 FormatTests && ./tools/clang/unittests/Format/FormatTests

Reviewers: jolesiak, stephanemoore, djasper

Reviewed By: stephanemoore

Subscribers: Wizard, hokein, cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D42650

llvm-svn: 324131

[X86] Add avx512 command line to ptest.ll to demonstrate that 512-bit vectors are not handled by LowerVectorAllZeroTest.

llvm-svn: 324130

Partially revert r324124 [X86] Add tests for missed opportunities to use ptest for all ones comparison.

Turns out I misunderstood the flag behavior of PTEST because I read the documentation for KORTEST which is different than PTEST/KTEST and made a bad assumption.

Keep the test rename though cause that's useful.

llvm-svn: 324129

Summary:
Previously, Clang only emitted label names in assert builds.
However there is a CC1 option -discard-value-names that should have been used to control emission instead.
    
This patch removes the NDEBUG preprocessor block and instead allows LLVM to handle removing the names in accordance with the option.


Reviewers: erichkeane, aaron.ballman, majnemer

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D42829

llvm-svn: 324127

The "sleep(5)" sometimes times out on our bots, causing the test to fail. Let's use pthread_join.

Differential Revision: https://reviews.llvm.org/D42862

llvm-svn: 324126

llvm-svn: 324125

Also rename the test from pr12312.ll to ptest.ll so its more recognizable.

llvm-svn: 324124

llvm-svn: 324123

llvm-svn: 324122

llvm-svn: 324121

Summary:
devname, devname_r - get device name

Sponsored by <The NetBSD Foundation>

Reviewers: joerg, vitalybuka

Reviewed By: vitalybuka

Subscribers: kubamracek, llvm-commits, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D42053

llvm-svn: 324120

for run_to_{source,name}_breakpoint.

llvm-svn: 324119

llvm-svn: 324118

llvm-svn: 324115

llvm-svn: 324114

Reviewers: hokein, bkramer

Reviewed By: bkramer

Subscribers: bkramer, klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D42361

llvm-svn: 324113

llvm-svn: 324112

This commit cleans up the expression parser, using a new style:
  - parse* functions now return Node pointers.
  - The mangled name is now held in Db and accessed with look() and consume()
  - LLVM coding style

This style is meant to avoid the 2 most common types of bugs in the
old demanger, namely misusing the Names stack (ie, calling back() on
empty) and going out of bounds on the mangled name. I also think it
makes the demangler a lot cleaner.

Differential revision: https://reviews.llvm.org/D41887

llvm-svn: 324111

Differential Revision: https://reviews.llvm.org/D42832

llvm-svn: 324110

llvm-svn: 324109

This reverts commit r324107.

I will have to test it on OS X.

llvm-svn: 324108

This starts adding dso_local to clang.

The hope is to eventually have TargetMachine::shouldAssumeDsoLocal go
away. My objective for now is to move enough of it to clang to remove
the need for the TargetMachine one to handle PIE copy relocations and
-fno-plt. With that it should then be easy to implement a
-fno-copy-reloc in clang.

This patch just adds the cases where we assume a symbol to be local
based on the file being compiled for an executable or a shared
library.

llvm-svn: 324107

[X86] Remove checks for FeatureAVX512 from the X86 assembly parser. Remove mcpu/mattr from assembly test command lines.

Summary:
We should always be able to accept AVX512 registers and instructions in llvm-mc. The only subtarget mode that should be checked is 16-bit vs 32-bit vs 64-bit mode.

I've also removed all the mattr/mcpu lines from test RUN lines to be consistent with this. Most were due to AVX512, but a few were for other features.

Fixes PR36202

Reviewers: RKSimon, echristo, bkramer

Reviewed By: echristo

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D42824

llvm-svn: 324106

llvm-svn: 324105

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D42674

llvm-svn: 324104

This requires corresponding llvm change.

Differential Revision: https://reviews.llvm.org/D40956

llvm-svn: 324102