llvm-svn: 106395

llvm-svn: 106390

assuming that loops are in canonical form, as ScalarEvolution doesn't
depend on LoopSimplify itself. Also, with indirectbr not all loops can
be simplified. This fixes PR7416.

llvm-svn: 106389

a helper function.

llvm-svn: 106388

llvm-svn: 106383

llvm-svn: 106382

llvm-svn: 106381

llvm-svn: 106375

AVX AND,OR,XOR,NAND{P}{S,D}{rr,rm} instructions.

llvm-svn: 106374

llvm-svn: 106373

llvm-svn: 106372

llvm-svn: 106371

llvm-svn: 106370

Disable sibcall optimization for Thumb1 for now since Thumb1RegisterInfo::emitEpilogue is not expecting them.

llvm-svn: 106368

and operand renaming to help.

The giant turn the constraints on and selectively turn it off
should probably be inverted at some point since it's just largely
50/50.

llvm-svn: 106367

llvm-svn: 106366

llvm-svn: 106365

segment prefixes.  Daniel wrote most of this patch.

llvm-svn: 106364

llvm-svn: 106362

llvm-svn: 106361

llvm-svn: 106360

llvm-svn: 106359

llvm-svn: 106358

llvm-svn: 106357

llvm-svn: 106356

llvm-svn: 106355

on calls and similar instructions.

llvm-svn: 106353

llvm-svn: 106349

llvm-svn: 106348

llvm-svn: 106347

the inserted INSERT_SUBREGs after us.

llvm-svn: 106345

- This fixed a number of bugs in if-converter, tail merging, and post-allocation
  scheduler. If-converter now runs branch folding / tail merging first to
  maximize if-conversion opportunities.
- Also changed the t2IT instruction slightly. It now defines the ITSTATE
  register which is read by instructions in the IT block.
- Added Thumb2 specific hazard recognizer to ensure the scheduler doesn't
  change the instruction ordering in the IT block (since IT mask has been
  finalized). It also ensures no other instructions can be scheduled between
  instructions in the IT block.

This is not yet enabled.

llvm-svn: 106344

llvm-svn: 106342

llvm-svn: 106340

llvm-svn: 106336

llvm-svn: 106335

instructions, but it doesn't really understand live ranges, so the first
INSERT_SUBREG uses an implicitly defined register.

Fix it in LiveVariableAnalysis by adding the <undef> flag.

llvm-svn: 106333

llvm-svn: 106330

llvm-svn: 106327

llvm-svn: 106324