llvm-svn: 48797

llvm-svn: 48794

llvm-svn: 48793

Handle a special case xor undef, undef -> 0. Technically this should be transformed to undef. But this is such a common idiom (misuse) we are going to handle it.

llvm-svn: 48792

Handle a special case xor undef, undef -> 0. Technically this should be transformed to undef. But this is such a common idiom (misuse) we are going to handle it.

llvm-svn: 48791

llvm-svn: 48786

the future, RecordTypes.

llvm-svn: 48784

llvm-svn: 48783

Patch by dekruijf@cs.wisc.edu!

llvm-svn: 48782

llvm-svn: 48779

other things, this allows the scheduler to unfold a load operand
in the 2008-01-08-SchedulerCrash.ll testcase, so it now successfully
clones the comparison to avoid a pushf+popf.

llvm-svn: 48777

passing an uninitialized value to a message expresion.

llvm-svn: 48776

llvm-svn: 48775

This adds support for instruction iterators, as well as rewriting the
builder code to use these new functions. This lets us eliminate the C
bindings for moving around the builder.

Patch by Erick Tryzelaar!

llvm-svn: 48774

and message expressions with a specified receiver.

llvm-svn: 48773

object directory.

llvm-svn: 48766

llvm-svn: 48764

OwningPtr<> class.

llvm-svn: 48763

llvm-svn: 48762

and uninitialized values passed-by-value as arguments to message expressions.

llvm-svn: 48760

llvm-svn: 48759

llvm-svn: 48758

llvm-svn: 48757

llvm-svn: 48756

llvm-svn: 48755

for message bubbles.

llvm-svn: 48754

llvm-svn: 48753

If the coalescer commuted a def MI to allow coalescing, it can changed a previously coalesced copy into an non-identity copy.

llvm-svn: 48752

llvm-svn: 48751

mask.

llvm-svn: 48750

llvm-svn: 48749

llvm-svn: 48748

llvm-svn: 48747

- SSE4.1 extractfps extracts a f32 into a gr32 register. Very useful! Not. Fix the instruction specification and teaches lowering code to use it only when the only use is a store instruction.

llvm-svn: 48746

llvm-svn: 48745

llvm-svn: 48744

llvm-svn: 48743

llvm-svn: 48742

llvm-svn: 48741

llvm-svn: 48740