llvm-svn: 37466

Add clobbersPred - instruction that clobbers condition code / register which are used to predicate instructions.

llvm-svn: 37465

Add a machine instruction flag indicating the instruction can clobber condition code / register(s) used to predicate instructions.

llvm-svn: 37464

correct machine basic block - do not rely on the eh.exception intrinsic
being in the landing pad: the loop optimizers can move it out.

llvm-svn: 37463

llvm-svn: 37462

- Modifications from the last patch included
  (issues pointed by Evan Cheng are now fixed).
- Added more MipsI instructions.
- Added more patterns to match branch instructions.

llvm-svn: 37461

llvm-svn: 37460

llvm-svn: 37459

llvm-svn: 37458

This is the obviously correct part of the fix for PR1487.

llvm-svn: 37457

If a unconditional branch is added to branch to the false path during ifcvt, the predicated block cannot be iteratively ifcvted.

llvm-svn: 37456

llvm-svn: 37455

llvm-svn: 37454

llvm-svn: 37453

llvm-svn: 37452

llvm-svn: 37451

llvm-svn: 37450

llvm-svn: 37449

llvm-svn: 37448

llvm-svn: 37447

llvm-svn: 37446

llvm-svn: 37445

llvm-svn: 37444

and expression separately.  We can get around this, however, by only keeping
opaque values in TMP_GEN.

llvm-svn: 37443

llvm-svn: 37442

llvm-svn: 37441

llvm-svn: 37440

Use separate pass id for CFGOnlyPrinter.

llvm-svn: 37439

llvm-svn: 37438

llvm-svn: 37437

llvm-svn: 37436

by LICM.

llvm-svn: 37435

llvm-svn: 37434

llvm-svn: 37433

VMCore, BitCode, and Assembly. Documentation and test case paramattrs.ll
updated also.

llvm-svn: 37432

llvm-svn: 37431

If the predicated block requires an early exit, end the block there and add a unconditional branch to false block. AnalyzeBranch() does not understand early exits.

llvm-svn: 37430

llvm-svn: 37429

Thanks Chuck!

llvm-svn: 37428

llvm-svn: 37427