llvm-svn: 26562

implement copysign as a native op if they have it.

llvm-svn: 26541

llvm-svn: 26450

llvm-svn: 26448

void foo(float a, int *b) { *b = a; }

to this:

_foo:
        fctiwz f0, f1
        stfiwx f0, 0, r4
        blr

instead of this:

_foo:
        fctiwz f0, f1
        stfd f0, -8(r1)
        lwz r2, -4(r1)
        stw r2, 0(r4)
        blr

This implements CodeGen/PowerPC/stfiwx.ll, and also incidentally does the
right thing for GCC bugzilla 26505.

llvm-svn: 26447

llvm-svn: 26445

llvm-svn: 26438

but I don't know what other PPC impls do.  If someone could update the proc
table, I would appreciate it :)

llvm-svn: 26421

llvm-svn: 26418

llvm-svn: 26405

inline asms! :)

llvm-svn: 26365

llvm-svn: 26348

llvm-svn: 26338

long long test(long long X) {
  __asm__("foo %0 %L0 %1 %L1" : "=r"(X): "r"(X));
  return X;
}

to:
        foo r2 r3 r2 r3

llvm-svn: 26333

dynamic-no-pic, and default.
PPC and x86 default is dynamic-no-pic for Darwin, pic for others.
- Removed options -enable-pic and -ppc-static.

llvm-svn: 26315

llvm-svn: 26314

llvm-svn: 26308

llvm-svn: 26305

llvm-svn: 26272

and SUBE nodes that actually expose what's going on and allow for
significant simplifications in the targets.

llvm-svn: 26255

We do not want to emit "Loop: ... brcond Out; br Loop", as it adds an extra
instruction in the loop.  Instead, invert the condition and emit
"Loop: ... br!cond Loop; br Out.

Generalize the fix by moving it from PPCDAGToDAGISel to SelectionDAGLowering.

llvm-svn: 26231

emit it (instead of .space), saving a bit of space in the .o file.

For example:
int foo[100];
int bar[100] = {};

when compiled with C++ or -fno-common results in shrinkage from 1160 to 360
bytes of space.  The X86 backend can also do this on darwin.

llvm-svn: 26185

llvm-svn: 26181

llvm-svn: 26142

PowerPC/and-imm.ll

llvm-svn: 26136

llvm-svn: 26085

SDOperand Select(SDOperand N);
to
void Select(SDOperand &Result, SDOperand N);

llvm-svn: 26067

llvm-svn: 26066

Move the methods out of line.
Remove unused Debug.h stuff.
Teach getNumBytesForInstruction to know the size of an inline asm.

llvm-svn: 26064

llvm-svn: 26053

llvm-svn: 26051

llvm-svn: 26042

llvm-svn: 26027

llvm-svn: 26022

llvm-svn: 26015

llvm-svn: 26010

llvm-svn: 25997

llvm-svn: 25984

This patch speeds up 172.mgrid from 31.81s to 11.39s on darwin/ppc.
Many many thanks to Nate for tracking down the root cause of the issue.

llvm-svn: 25979

llvm-svn: 25963