This patch will optimize the following cases on X86
(a > b) ? (a-b) : 0
(a >= b) ? (a-b) : 0
(b < a) ? (a-b) : 0
(b <= a) ? (a-b) : 0

FROM
movl    %edi, %ecx
subl    %esi, %ecx
cmpl    %edi, %esi
movl    $0, %eax
cmovll  %ecx, %eax
TO
xorl    %eax, %eax
subl    %esi, %edi
cmovll  %eax, %edi
movl    %edi, %eax

rdar: 10734411
llvm-svn: 155919

Greatly scale back ambitions of emulating move semantics in C++03 mode.  It was causing more problems than it solved.  This fixes http://llvm.org/bugs/show_bug.cgi?id=12704.

llvm-svn: 155918

X86: Use StackRegister instead of FrameRegister in getFrameIndexReference (to generate debug info for local variables) if stack needs realignment

llvm-svn: 155917

Unify Options.td and CC1Options.td, in a first step towards unifying the serialization logic in Frontend and Driver.

Reviewed by Eric, Doug and Chandler, and here: http://llvm.org/reviews/r/7/

llvm-svn: 155916

llvm-svn: 155915

llvm-svn: 155914

clang/test/CodeGenCXX: Fix two tests, destructors.cpp and microsoft-abi-array-cookies.cpp, for -Asserts.

llvm-svn: 155913

llvm-svn: 155912

clang/test/Rewriter: Remove XFAIL and add -U__declspec to other 9 tests. mingw32 tends to define built-in __declspec.

llvm-svn: 155911

clang/test/Rewriter/rewrite-modern-extern-c-func-decl.mm: Remove XFAIL and add -U__declspec. mingw32 tends to define built-in __declspec.

llvm-svn: 155910

llvm-svn: 155909

- Improved parameter names for clarity
- Added comments
- emitCommonSymbols should return void because its return value is not being
  used anywhere
- Attempt to reduce the usage of the RelocationValueRef type. Restricts it 
  for a single goal and may serve as a step for eventual removal.

llvm-svn: 155908

llvm-svn: 155907

to force the emission of vtordisps.

llvm-svn: 155906

working knowledge of the Microsoft ABI.  Based on a patch by
Dmitry Sokolov.

llvm-svn: 155905

llvm-svn: 155904

The TargetPassManager's default constructor wants to initialize the PassManager
to 'null'. But it's illegal to bind a null reference to a null l-value. Make the
ivar a pointer instead.
PR12468

llvm-svn: 155902

llvm-svn: 155900

llvm-svn: 155899

- There's no point having a different type for the local and global symbol
  tables.
- Renamed SymbolTable to GlobalSymbolTable to clarify the intention
- Improved const correctness where relevant

llvm-svn: 155898

llvm-svn: 155897

llvm-svn: 155896

Added an example of MCJIT-based debugging.

llvm-svn: 155895

and only consider using __cxa_atexit in the Itanium logic.  The
default logic is to use atexit().

Emit "guarded" initializers in Microsoft mode unconditionally.
This is definitely not correct, but it's closer to correct than
just not emitting the initializer.

Based on a patch by Timur Iskhodzhanov!

llvm-svn: 155894

I broke this in r155838 by not actually instantiating non-dependent default arg
expressions. The motivation for that change was to avoid producing duplicate
conversion warnings for such default args (we produce them once when we parse
the template - there's no need to produce them at each instantiation) but
without actually instantiating the default arg, things break in weird ways.

Technically, I think we could still get the right diagnostic experience without
the bugs if we instantiated the non-dependent args (for non-dependent params
only) immediately, rather than lazily. But I'm not sure if such a refactoring/
change would be desirable so here's the conservative fix for now.

llvm-svn: 155893

Place several uncovered warnings under warning flags, and tweak diagnostic output including the term "gc" (in lowercase).

llvm-svn: 155892

llvm-svn: 155891

Remove HasSSE2 from AES and CLMUL predicates. It's now implied by the HasAES and HasCLMUL predicates.

llvm-svn: 155890

llvm-svn: 155889

llvm-svn: 155888

Teach RetainCountchecker about IORegistryEntrySearchCFProperty returning retained objects.  I know there is an SDK enhancement request for this to have the cf_returns_retained annotation, so this is just a stop gap.

llvm-svn: 155887

what I'm going to treat as basically universal properties of
array-cookie code.  Implement MS array cookies on top of that.
Based on a patch by Timur Iskhodzhanov!

llvm-svn: 155886

llvm-svn: 155885

has no exit blocks. Fixes PR12706!

llvm-svn: 155884

Review by Doug Gregor.

llvm-svn: 155880

type-source information for its parameters.  Don't crash when
mangling them in the MS C++ ABI.  Patch by Timur Iskhodzhanov!

llvm-svn: 155879

llvm-svn: 155878

llvm-svn: 155877

diagnostic, from Eitan Adler!

llvm-svn: 155876

llvm-svn: 155875