llvm-svn: 21203

have to inform the register allocator it might be stepped on.

llvm-svn: 21202

llvm-svn: 21201

llvm-svn: 21200

llvm-svn: 21199

llvm-svn: 21198

llvm-svn: 21197

the new zero extend, not the original operand.  This fixes cast bool -> long
on ppc.

Add an unrelated fixme

llvm-svn: 21196

correct.  Remove the EmitComparison retvalue, as it is always the first arg.

Fix a place where we incorrectly passed in the setcc opcode instead of the
setcc number, causing us to miscompile crafty.  Crafty now works!

llvm-svn: 21195

llvm-svn: 21193

This caused the "use before a def" assertion on some programs.

With this patch, 254.gap now passes with the PPC backend.

llvm-svn: 21191

that is not careful, so I'm checking it into the generic tests.

llvm-svn: 21190

int a(short i) {
        return i & 1;
}

as

_a:
        andi. r3, r3, 1
        blr

instead of:

_a:
        rlwinm r2, r3, 0, 16, 31
        andi. r3, r2, 1
        blr

on ppc.  It should also help the other risc targets.

llvm-svn: 21189

llvm-svn: 21188

Generate rotate left/right immediate
Generate code for brcondtwoway
Use new livein/liveout functionality

llvm-svn: 21187

llvm-svn: 21185

implicit defs on entry to the function.  yaay :)

llvm-svn: 21184

removes noop moves.

llvm-svn: 21183

llvm-svn: 21182

llvm-svn: 21181

use ugly imp_def/imp_uses for arguments and return values.

llvm-svn: 21180

llvm-svn: 21179

  * fix overallocation of integer (stacked) registers: we can't allocate
  registers for local use if they are required as output registers

this fixes 'toast' in the test suite, and all sorts of larger programs
like bzip2 etc.

llvm-svn: 21178

case so that we emit

_test_fneg_sel:
.LBB_test_fneg_sel_0:   ;
        fsel f1, f1, f3, f2
        blr

instead of:

_test_fneg_sel:
.LBB_test_fneg_sel_0:   ;
        fneg f0, f1
        fneg f0, f0
        fsel f1, f0, f3, f2
        blr

llvm-svn: 21177

to back for certain fsel instructions.

llvm-svn: 21176

llvm-svn: 21175

lets hope this doesn't break other programs with induced entropy

llvm-svn: 21174

llvm-svn: 21173

is deconstructed then reconstructed here.  This catches 19 fabs's in 177.mesa
9 in 168.wupwise, 5 in 171.swim, 3 in 172.mgrid, and 14 in 173.applu out of
specfp2000.

This allows the X86 code generator to make MUCH better code than before for
each of these and saves one instr on ppc.

This depends on the previous CFE patch to expose these correctly.

llvm-svn: 21171

llvm-svn: 21170

llvm-svn: 21169

missing some and not all of these match yet, but I'm sure that Nate will
clean up my mess :)

llvm-svn: 21168

llvm-svn: 21167

llvm-svn: 21166

llvm-svn: 21165

llvm-svn: 21164

llvm-svn: 21163

llvm-svn: 21162

32b: No longer pattern match fneg(fsub(fmul)) as fnmsub
     Pattern match fsub a, mul(b, c) as fnmsub
     Pattern match fadd a, mul(b, c) as fmadd
Those changes speed up hydro2d by 2.5%, distray by 6%, and scimark by 8%

llvm-svn: 21161

llvm-svn: 21160