or other uses hanging off of them.

llvm-svn: 22219

Do not perform undefined out of range shifts.

llvm-svn: 22217

allows test programs to succeed. Actual fix for this is forthcoming.

llvm-svn: 22213

avoids dereferencing the end() iterator when selecting the fallthrough
block.  This requires an ilist change.

llvm-svn: 22212

not generate unnecessary register copies.  This improves compile time by
2-5% depending on the test.

llvm-svn: 22210

fix the bzip2 test. A better hack is needed.

llvm-svn: 22209

and the target independant register allocator were both using a class named
'LiveRange'.  This lead to the target independant code calling code in the
SparcV9 backend, which crashed.  Fixed by renaming SparcV9's LiveRange to
V9LiveRange.

llvm-svn: 22208

incorrectly using an iterator after it was invalid.

llvm-svn: 22207

llvm-svn: 22206

(void*)0.

llvm-svn: 22205

llvm-svn: 22203

Undefine the PPC symbol which is defined by Linux/PPC (erroneously) so it
doesn't pollute the user namespace and clash with our namespace declarations.

llvm-svn: 22202

regularly in "normal" code, but for things like software graphics, they
make a big difference.

For the following code:
unsigned short Trans16Bit(unsigned srcA,unsigned srcB,unsigned alpha)
{
	unsigned tmpA,tmpB,mixed;
	tmpA = ((srcA & 0x03E0) << 15) | (srcA & 0x7C1F);
	tmpB = ((srcB & 0x03E0) << 15) | (srcB & 0x7C1F);
	mixed = (tmpA * alpha) + (tmpB * (32 - alpha));
	return ((mixed >> 5) & 0x7C1F) | ((mixed >> 20) & 0x03E0);
}

We now generate:
_Trans16Bit:
.LBB_Trans16Bit_0:      ; entry
        andi. r2, r4, 31775
        rlwimi r2, r4, 15, 7, 11
        subfic r4, r5, 32
        mullw r2, r2, r4
        andi. r4, r3, 31775
        rlwimi r4, r3, 15, 7, 11
        mullw r3, r4, r5
        add r2, r2, r3
        srwi r3, r2, 5
        andi. r3, r3, 31775
        rlwimi r3, r2, 12, 22, 26
        blr

Instead of:
_Trans16Bit:
.LBB_Trans16Bit_0:      ; entry
        slwi r2, r4, 15
        rlwinm r2, r2, 0, 7, 11
        andi. r4, r4, 31775
        or r2, r2, r4
        subfic r4, r5, 32
        mullw r2, r2, r4
        slwi r4, r3, 15
        rlwinm r4, r4, 0, 7, 11
        andi. r3, r3, 31775
        or r3, r4, r3
        mullw r3, r3, r5
        add r2, r2, r3
        srwi r3, r2, 5
        andi. r3, r3, 31775
        srwi r2, r2, 20
        rlwimi r3, r2, 0, 22, 26
        blr

llvm-svn: 22201

llvm-svn: 22200

returning to the old style :)

llvm-svn: 22199

llvm-svn: 22196

allow marking of loads and stores in the instruction stream with enough information to reconstruct the Value* if it existed

llvm-svn: 22195

llvm-svn: 22194

* Remove warning "control reaches end of non-void function"

llvm-svn: 22193

llvm-svn: 22192

llvm-svn: 22190

configure seems to find it on Cygwin but linking against it fails.

llvm-svn: 22189

llvm-svn: 22188

llvm-svn: 22187

llvm-svn: 22186

llvm-svn: 22185

llvm-svn: 22179

The issue is there is no unsigned -> double conversion, only signed.  So I
need to test the sign and do a different thing depending on it.  Ideally
this should be in a different BB, but in the mean time, I use a branch
free method.

llvm-svn: 22177

document what its for a little better.

llvm-svn: 22164

llvm-svn: 22163

llvm-svn: 22162

llvm-svn: 22161

  sprintf(P, "%s", X);

Where X is not an sbyte*.  This fixes the bug JohnMC reported on llvm-bugs.

llvm-svn: 22159

llvm-svn: 22158

so that the shiny new use of std::cerr is defined.

llvm-svn: 22156

* Change assert() to std::cerr printout, as it will not appear in opt builds
* Add comments to clarify what #ifdef/#else/#endif match what condition(s)

llvm-svn: 22154

llvm-svn: 22151

llvm-svn: 22150

llvm-svn: 22148

llvm-svn: 22147