sdisel changes, this eliminates a ton of copies around common inline asms.
For example:

int test2(int Y, int X) {
  asm("foo %0, %1" : "=r"(X): "r"(X));
  return X;
}

now compiles to:

_test2:
        foo r3, r4
        blr

instead of:

_test2:
        mr r2, r4
        foo r2, r2
        mr r3, r2
        blr

GCC produces:

_test2:
        foo r4, r4
        mr r3,r4
        blr

llvm-svn: 31367

llvm-svn: 31318

2. Added partial debug support for mingw\cygwin targets (the same as
   Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format
   for storing debug info by default, thus many (runtime) libraries has
   this information included. These formats shouldn't be mixed in one binary
   ('stabs' & 'DWARF'), otherwise binutils tools will be confused.

llvm-svn: 31311

condition.  This fixes miscompilation of Olden/bh and many others.

llvm-svn: 31301

llvm-svn: 31294

llvm-svn: 31264

llvm-svn: 31253

llvm-svn: 31246

llvm-svn: 31236

        cmpw cr0, r7, r3
        ble cr0, LBB1_5 ;bb25
LBB1_8: ;bb17
        cmpw cr0, r8, r5
        bgt cr0, LBB1_2 ;bb

which is just as good as crnand.

llvm-svn: 31235

llvm-svn: 31207

llvm-svn: 31171

llvm-svn: 31148

This provides stuff like:

        cmpw cr0, r15, r29
        mr r14, r15
-       bge cr0, LBB3_111       ;bb656
-       b LBB3_90       ;bb501
+       blt cr0, LBB3_90        ;bb501
 LBB3_111:      ;bb656
        lwz r18, 68(r1)

which is particularly good for dispatch group formation.

llvm-svn: 31101

llvm-svn: 31097

llvm-svn: 31096

llvm-svn: 31028

llvm-svn: 31027

llvm-svn: 31024

llvm-svn: 31003

llvm-svn: 30994

llvm-svn: 30946

llvm-svn: 30945

llvm-svn: 30937

llvm-svn: 30936

llvm-svn: 30935

llvm-svn: 30908

llvm-svn: 30891

llvm-svn: 30844

llvm-svn: 30759

llvm-svn: 30745

llvm-svn: 30742

llvm-svn: 30735

function bodies

llvm-svn: 30733

llvm-svn: 30731

as the function body.

llvm-svn: 30730

extra operand to LOADX to specify the exact value extension type.

llvm-svn: 30714

llvm-svn: 30662

CodeGen/PowerPC/2006-09-28-shift_64.ll

llvm-svn: 30652

llvm-svn: 30621