Fixes PR4314.

llvm-svn: 73007

sometimes it can find simplifications that won't be found otherwise.

llvm-svn: 73006

insert/extract; the relevant instructions are defined to take only an 
i32.

llvm-svn: 73005

llvm-svn: 73004

llvm-svn: 73003

Instructions.

llvm-svn: 73002

llvm-svn: 73001

llvm-svn: 73000

SCEVCouldNotCompute, and not SCEVUnknown.

llvm-svn: 72999

zero/sign extension logic (consider, e.g. target has only 64 bit registers and thus
i32's should be extended as well).

llvm-svn: 72998

llvm-svn: 72996

llvm-svn: 72995

llvm-svn: 72994

types.

llvm-svn: 72993

llvm-svn: 72992

llvm-svn: 72991

llvm-svn: 72990

Also, there were a bunch of flags with no text in --help because the square
brackets were in the wrong place. I've fixed those too.

llvm-svn: 72989

nodes for vectors with an i16 element type.  Add an optimization for 
building a vector which is all zeros/undef except for the bottom 
element, where the bottom element is an i8 or i16.

llvm-svn: 72988

llvm-svn: 72987

llvm-svn: 72986

llvm-svn: 72985

Make ParmVarDecl::getDefaultArg() more robust, it now asserts that the argument is not unparsed. Add a new hasDefaultArg() and use it in places where getDefaultArg() was called when the argument was unparsed.

llvm-svn: 72984

conversions for x86, like <2 x i32> -> <2 x float> and <4 x i16> -> 
<4 x float>.

llvm-svn: 72983

llvm-svn: 72982

llvm-svn: 72981

integer type to be consistent with normal operation legalization.  No visible
change because nothing is actually using this at the moment.

llvm-svn: 72980

of calls to builtins for constructs which can be expressed directly.

llvm-svn: 72979

without a relevant source location anyway.  Fixes the issue with weird 
warnings when including objc/Object.h on OS X.

llvm-svn: 72978

llvm-svn: 72977

llvm-svn: 72976

llvm-svn: 72975

___Block_byref_id_object_dispose and ___Block_byref_id_object_copy
functions so that we can simply reuse instead of creating a new one.
Additionally, add an assert to ensure no one yet tries to align a
__block variable beyond the alignment of a pointer as the codegen is
incomplete.

llvm-svn: 72974

<rdar://problem/6948053> False positive: object substitution during -init* methods warns about returning +0 when using -fobjc-gc-only

llvm-svn: 72971

llvm-svn: 72970

llvm-svn: 72969

for non-Objctive-C pointer types.  This implicitly documents that the
return type is a CF object reference.

llvm-svn: 72968

 - <rdar://problem/6948703> clang treats weak_import like weak

llvm-svn: 72967

llvm-svn: 72965

llvm-svn: 72963