Allows LLVM to optimize sequences like the following:

%add = add nsw i32 %x, 1
%cmp = icmp sgt i32 %add, %y

into:

%cmp = icmp sge i32 %x, %y

as well as:

%add1 = add nsw i32 %x, 20
%add2 = add nsw i32 %y, 57
%cmp = icmp sge i32 %add1, %add2

into:

%add = add nsw i32 %y, 37
%cmp = icmp sle i32 %cmp, %x

llvm-svn: 179316

These changes are based on commit responses for r179135.

llvm-svn: 179315

multiply instructions in MipsSEDAGToDAGISel.

This patch was supposed to be part of r178403.

llvm-svn: 179314

- Rename function.
- Pass iterator by value.
- Remove header include.

No functionality changes.

llvm-svn: 179312

llvm-svn: 179311

is unavailable for Hexagon.

llvm-svn: 179310

This new option is the default, but it is useful to have a flag to override
-mno-implicit-float by putting -mimplicit-float later on the command line.

llvm-svn: 179309

This is a better way of ensuring that we match the output of the
rewriter and not the CHECK line.

llvm-svn: 179308

llvm-svn: 179307

llvm-svn: 179306

Summary:
Handles all inheritance models for both data and function member
pointers.

Also implements isZeroInitializable() and refactors some of the null
member pointer code.

MSVC supports converting member pointers through virtual bases, which
clang does not (yet?) support.  Implementing that extension is covered
by http://llvm.org/15713

Reviewers: rjmccall

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D613

llvm-svn: 179305

parser.

<rdar://problem/13631469>

llvm-svn: 179304

llvm-svn: 179303

llvm-svn: 179301

llvm-svn: 179300

llvm-svn: 179299

llvm-svn: 179298

[libclang] Have clang_getCXXAccessSpecifier() also return the access control of a C++ declaration within its parent scope.

Suggested by Stefan Seefeld.

llvm-svn: 179297

Static variables inside classes were not being added to the RecordDecl, now they are. This gets us closer to being able to display static variables in classes.

llvm-svn: 179296

Example:
CMake Error at cmake/modules/LLVMProcessSources.cmake:89 (message):
  Found unknown source file
  /llvm-toolchain-3.3~svn179293.cmake/tools/lldb/source/Plugins/Platform/MacOSX/PlatformDarwinKernel.cpp

llvm-svn: 179295

With this patch llvm-readobj now prints if a relocation is pcrel, its length,
if it is extern and if it is scattered.

It also refactors the code a bit to use bit fields instead of shifts and
masks all over the place.

llvm-svn: 179294

Explicitly list all sanitizer headers in CMake build rules. Make sure sanitizer lit_tests depend on fresh headers.

llvm-svn: 179293

[asan] improve the UAR reporting (try harder to find the correct frame), try to make the test more stable

llvm-svn: 179292

When trying to collapse sequences of insertelement/extractelement
instructions into single shuffle instructions, there is one specific
case where the Instruction Combiner wrongly updates the resulting
Mask of shuffle indexes.

The problem is in function CollectShuffleElments.

If we have a sequence of insert/extract element instructions
like the one below:

  %tmp1 = extractelement <4 x float> %LHS, i32 0
  %tmp2 = insertelement <4 x float> %RHS, float %tmp1, i32 1
  %tmp3 = extractelement <4 x float> %RHS, i32 2
  %tmp4 = insertelement <4 x float> %tmp2, float %tmp3, i32 3

Where:
  . %RHS will have a mask of [4,5,6,7]
  . %LHS will have a mask of [0,1,2,3]

The Mask of shuffle indexes is wrongly computed to [4,1,6,7]
instead of [4,0,6,7].
When analyzing %tmp2 in order to compute the Mask for the
resulting shuffle instruction, the algorithm forgets to update
the mask index at position 1 with the index associated to the
element extracted from %LHS by instruction %tmp1.

Patch by Andrea DiBiagio!

llvm-svn: 179291

Thanks to Reid Kleckner for catching this.

llvm-svn: 179289

Pre- and post- hooks for linux syscalls. Not wired into anything, but exposed
through public interface.

llvm-svn: 179288

Function declarations are now broken with the following preferences:
1) break amongst arguments.
2) break after return type.
3) break after (.
4) break before after nested name specifiers.

Options #2 or #3 are preferred over #1 only if a substantial number of
lines can be saved by that.

llvm-svn: 179287

llvm-svn: 179286

This will be used in clang to decide if it should create an @file or not. It
will be tested on the clang side.

Patch by Nathan Froyd.

llvm-svn: 179285

The bots seem to do more line wrapping because they have longer absolute
paths.

llvm-svn: 179284

The behavior can be overridden by setting LIT_USE_INTERNAL_SHELL=0 in
the environment.

This fixes issues with /dev/null for me and brings the test suite time
down to 30s.  =D

llvm-svn: 179283

This required some tedious reordering to match clang's order.
Presumably these ObjC tests were generated based on llvm-gcc's output
ordering.

llvm-svn: 179282

llvm-svn: 179281

llvm-svn: 179280

llvm-svn: 179279

[asan] fix use-after-return functionality (PR15672) and enable the corresponding test. We still don't guarantee anything with regard to use-after-return checking

llvm-svn: 179278

llvm-svn: 179277

llvm-svn: 179276

llvm-svn: 179275

llvm-svn: 179274