vectors of all one bits to be printed more cleverly in the AsmPrinter.
Unfortunately, the byte value for all one bits is the same with
-fsigned-char as the error return of '-1'. Force this to be the unsigned
byte value when returning it to avoid this problem, and update the test
case for the shiny new behavior.

Yay for building LLVM and Clang with -funsigned-char.

Chris, please review, and let me know if there is any reason to not
desire this change. It seems good on the surface, and certainly intended
based on the code written.

llvm-svn: 149299

llvm-svn: 149294

llvm-svn: 149293

Intel syntax. Adjust special code, used to recognize cmp<comparison code>{ss,sd,ps,pd}, for intel syntax.

llvm-svn: 149291

llvm-svn: 149289

llvm-svn: 149275

Allow casts from integer to string.

llvm-svn: 149273

llvm-svn: 149270

llvm-svn: 149269

*function*. Wrap the function in #ifndef NDEBUG.

llvm-svn: 149259

llvm-svn: 149255

llvm-svn: 149254

llvm-svn: 149248

Fix compilation of ASan tests on OS X Lion (see http://code.google.com/p/address-sanitizer/issues/detail?id=32)
The redzones emitted by AddressSanitizer for CFString instances confuse the linker and are of little use, so we shouldn't add them. 

llvm-svn: 149243

Add GCCBuiltin declarations for cmpsd/cmpss/cmppd/cmpps to allow custom code to be removed from clang.

llvm-svn: 149234

Fix pattern for memory form of PSHUFD for use with FP vectors to remove bitcast to an integer vector that normal code wouldn't have. Also remove bitcasts from code that turns splat vector loads into a shuffle as it was making the broken pattern necessary.

llvm-svn: 149232

llvm-svn: 149230

llvm-svn: 149229

to be formed whenever ConstantVector::get is used.

llvm-svn: 149226

like normal integers.

llvm-svn: 149223

llvm-svn: 149222

when the result type has a different # elements than the input vectors.

llvm-svn: 149221

llvm-svn: 149220

llvm-svn: 149219

llvm-svn: 149217

Move some XOP patterns into instruction definition. Replae VPCMOV intrinsic patterns with custom lowering to a target specific nodes.

llvm-svn: 149216

should be feature complete now.  Lets see if it works.

llvm-svn: 149215

a better doxyment group for convenience predicates.

llvm-svn: 149211

library, since it doesn't really have anything to do with Clang.

llvm-svn: 149203

llvm-svn: 149195

llvm-svn: 149194

- Don't call malloc+free in the very hot forward().
- Don't call isTiedToDefOperand().
- Don't create BitVector temporaries.
- Merge DeadRegs into KillRegs.
- Eliminate the early clobber checks, they were irrelevant to scavenging.
- Remove unnecessary code from -Asserts builds.

This speeds up ARM PEI by 3.4x and overall llc -O0 codegen time by 11%.

llvm-svn: 149189

llvm-svn: 149188

The alternative LHS &= ~RHS is way too slow because it creates a
temporary that calls malloc/free.

llvm-svn: 149187

llvm-svn: 149185

(and other targets).

llvm-svn: 149182

Fixes PR11877

llvm-svn: 149180

llvm-svn: 149179

llvm-svn: 149175

messages and allows us to fix PR11865.

llvm-svn: 149174