llvm-svn: 106750

as many tests as possible.

llvm-svn: 106749

when the condition is constant. This optimization shouldn't be
necessary, because codegen shouldn't be able to find dead control
paths that the IR-level optimizer can't find. And it's undesirable,
because it encourages bugpoint to leave "br i1 false" branches
in its output. And it wasn't updating the CFG.

I updated all the tests I could, but some tests are too reduced
and I wasn't able to meaningfully preserve them.

llvm-svn: 106748

llvm-svn: 106747

llvm-svn: 106746

llvm-svn: 106745

llvm-svn: 106744

llvm-svn: 106743

llvm-svn: 106742

llvm-svn: 106741

llvm-svn: 106740

llvm-svn: 106738

llvm-svn: 106737

llvm-svn: 106736

llvm-svn: 106734

The constant was copied from clang's limits.h.

llvm-svn: 106732

llvm-svn: 106731

llvm-svn: 106730

llvm-svn: 106729

llvm-svn: 106728

llvm-svn: 106727

llvm-svn: 106726

rdar://8013734

llvm-svn: 106725

llvm-svn: 106724

llvm-svn: 106723

Patch by Ben Ransford!

llvm-svn: 106722

bt instruction, which was exposed by r106263.

llvm-svn: 106718

llvm-svn: 106717

case where the bit mask has exactly one bit.

llvm-svn: 106716

target specific preprocessor define as well.

llvm-svn: 106715

Whiny buildbots.

llvm-svn: 106710

llvm-svn: 106709

complete instructions rather than simply their
opcodes.

llvm-svn: 106708

llvm-svn: 106707

The ValueMapper used by various cloning utility maps MDNodes also.

llvm-svn: 106706

llvm-svn: 106705

- Rationalized EvaluateExpression to remove a lot
  of nesting; also added comments to make it easy
  to find what's happening where
- Made ExecuteRawCommandString subcontract out to
  EvaluateExpression
- Minor logging improvements

llvm-svn: 106703

llvm-svn: 106702

CoalescerPair can determine if a copy can be coalesced, and which register gets
merged away. The old logic in SimpleRegisterCoalescing had evolved into
something a bit too convoluted.

llvm-svn: 106701

when block literal is declared inside a ctor/dtor.
Fixes radr 8096995.

llvm-svn: 106700