llvm-svn: 42573

seem significant as well.

llvm-svn: 42564

llvm-svn: 42554

llvm-svn: 42552

llvm-svn: 42549

llvm-svn: 42548

llvm-svn: 42547

llvm-svn: 42546

llvm-svn: 42542

llvm-svn: 42537

instructions reverse map.

llvm-svn: 42509

llvm-svn: 42492

llvm-svn: 42488

And not super's super, either.

llvm-svn: 42482

llvm-svn: 42459

The only generated code difference is that now we call memcpy when
the size of the array is unknown. This matches GCC behavior and is
better since the run time value can be arbitrarily large.

llvm-svn: 42433

llvm-svn: 42429

llvm-svn: 42426

other than PPC64. Instead of fixing it, just remove it and fix all the
places that use it to use TargetData::getPointerSize() instead, as there
aren't very many. Most of the references were in DwarfWriter.cpp.

llvm-svn: 42419

llvm-svn: 42417

llvm-svn: 42413

destruction of compiler-created ones.

llvm-svn: 42383

- Added ability to emit cross class register copies to the BBRU scheduler.
- More aggressive backtracking.

llvm-svn: 42375

- Added MRegisterInfo::getCrossCopyRegClass() hook. For register classes where reg to reg copies are not possible, this returns another register class which registers in the specified register class can be copied to (and copy back from).
- X86 copyRegToReg() now supports copying between EFLAGS and GR32 / GR64 registers.

llvm-svn: 42372

Some assemblers do not recognize aliases pushfd, pushfq, popfd, and popfq. Just emit them as pushf and popf.

llvm-svn: 42371

llvm-svn: 42368

llvm-svn: 42348

llvm-svn: 42347

Tested with "make check"!

llvm-svn: 42346

llvm-svn: 42345

llvm-svn: 42335

llvm-svn: 42333

llvm-svn: 42332

llvm-svn: 42323

llvm-svn: 42322

llvm-svn: 42316

llvm-svn: 42313

llvm-svn: 42312

both results with a single div or idiv instruction. This uses new X86ISD
nodes for DIV and IDIV which are introduced during the legalize phase
so that the SelectionDAG's CSE can automatically eliminate redundant
computations.

llvm-svn: 42308

the check to see if the assembler supports .loc from X86TargetLowering
into the superclass TargetLowering.

llvm-svn: 42297