llvm-svn: 53192

llvm-svn: 53190

llvm-svn: 53189

llvm-svn: 53188

llvm-svn: 53187

simple const SDOperand*, which is what's usually needed.

For AddNodeIDOperands, which is small, just duplicate the function to
accept an SDUse*.

For SelectionDAG::getNode - Add an overload that accepts SDUse* that
copies the operands into a temporary SDOperand array, but also has
special-case checks for 0 through 3 operands to avoid the copy in
the common cases.

llvm-svn: 53183

all happened be unnecessary.

llvm-svn: 53182

llvm-svn: 53181

llvm-svn: 53180

llvm-svn: 53179

llvm-svn: 53178

llvm-svn: 53177

Removed ImmutableMap::SlimFind and replaced it with ImmutableMap::lookup.  The new method does the same thing, except that it returns a pointer to the mapped data type, and not to an internal tree node.

llvm-svn: 53171

llvm-svn: 53169

Comment the xor %x, -1 case.

llvm-svn: 53167

llvm-svn: 53166

float value.

llvm-svn: 53165

having weak or linkonce or common or extweak LLVM linkage.

llvm-svn: 53158

llvm-svn: 53157

llvm-svn: 53156

llvm-svn: 53155

llvm-svn: 53154

llvm-svn: 53153

llvm-svn: 53151

that fixed problems in EmitStackConvert where the source and target type
have different alignment by creating a stack slot with the max
alignment of source and target type.

llvm-svn: 53150

important.
- Cleanup in the Subtarget info with addition of new features, not all support
  yet, but they allow the future inclusion of features easier. Among new features,
  we have : Arch family info (mips1, mips2, ...), ABI info (o32, eabi), 64-bit
  integer
  and float registers, allegrex vector FPU (VFPU), single float only support.
- TargetMachine now detects allegrex core.
- Added allegrex (Mips32r2) sext_inreg instructions.
- *Added Float Point Instructions*, handling single float only, and
  aliased accesses for 32-bit FPUs.
- Some cleanup in FP instruction formats and FP register classes.
- Calling conventions improved to support mips 32-bit EABI.
- Added Asm Printer support for fp cond codes.
- Added support for sret copy to a return register.
- EABI support added into LowerCALL and FORMAL_ARGS.
- MipsFunctionInfo now keeps a virtual register per function to track the
  sret on function entry until function ret.
- MipsInstrInfo FP support into methods (isMoveInstr, isLoadFromStackSlot, ...),
  FP cond codes mapping and initial FP Branch Analysis.
- Two new Mips SDNode to handle fp branch and compare instructions : FPBrcond,
  FPCmp
- MipsTargetLowering : handling different FP classes, Allegrex support, sret
  return copy, no homing location within EABI, non 32-bit stack objects
  arguments, and asm constraint for float.

llvm-svn: 53146

hook for each way in which a result type can be
legalized (promotion, expansion, softening etc),
just use one: ReplaceNodeResults, which returns
a node with exactly the same result types as the
node passed to it, but presumably with a bunch of
custom code behind the scenes.  No change if the
new LegalizeTypes infrastructure is not turned on.

llvm-svn: 53137

moves in order to get correct debug info.  Since
I can't imagine how any target could possibly
be any different, I've just stripped out the
option: now all the world's like Darwin!

llvm-svn: 53134

llvm-svn: 53123

slow the compiler down at -O0 some 30% or more. Ooops.

llvm-svn: 53120

llvm-svn: 53119

llvm-svn: 53110

llvm-svn: 53109

Use information already present in the ValueTable to fast-fail when we know there won't be a value number match.  This speeds up GVN on a case where there are very few redundancies by ~25%.

llvm-svn: 53108

Do not try to update dominator info while manipulating CFG.  This code does not handle all cases and keeps invalid dom info around some cases, which misleads other passes down stream.

Right now, dom info is recaluclated in the end if the loop is switched.

llvm-svn: 53106

Remove the ability for ADCE to remove unreachable blocks in loop nests, because, as Eli pointed out, SimplifyCFG already does this.

llvm-svn: 53104

- Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc.
- Also remove LiveVariables::instructionChanged, etc. Replace all calls with cheaper calls which update VarInfo kill list.

llvm-svn: 53097

llvm-svn: 53096

llvm-svn: 53092

processed separately. Honour such situation and emit PIC relocations properly
in such case.

llvm-svn: 53091