1. Use expects a chain output.
2. Node is expanded into multiple target ops.
3. One of the inner node produces a chain, the outer most one doesn't.

llvm-svn: 28209

def : Pat<> pattern.

llvm-svn: 28208

llvm-svn: 28207

llvm-svn: 28206

ppc

llvm-svn: 28205

llvm-svn: 28204

llvm-svn: 28203

the distance between the def and another use is much longer). This is under
option control for now "-sched-lower-defnuse".

llvm-svn: 28201

llvm-svn: 28200

llvm-svn: 28199

llvm-svn: 28198

llvm-svn: 28197

llvm-svn: 28196

llvm-svn: 28195

Implement MASM sections correctly, without a "has masm sections flag" and a bunch of special case code.

llvm-svn: 28194

bunch of special case code.

llvm-svn: 28193

llvm-svn: 28192

of code to be unified.

llvm-svn: 28191

llvm-svn: 28190

Don't prefix section directives with a tab.  Doing so causes blank lines to
be emitted to the .s file.

llvm-svn: 28189

llvm-svn: 28188

llvm-svn: 28187

llvm-svn: 28186

it wants it emitted to _text/_data.

llvm-svn: 28185

llvm-svn: 28184

support assemblers that distinguish the two.

llvm-svn: 28183

llvm-svn: 28182

Domagoj Babic!

llvm-svn: 28181

and is unlikely to change in future releases. This also simplifies the
parsing of the full and major llvm-gcc version numbers in the script.

llvm-svn: 28180

llvm-svn: 28179

llvm-svn: 28178

llvm-svn: 28177

llvm-svn: 28176

short test2(short X, short x) {
  int Y = (short)(X+x);
  return Y >> 1;
}

to:

_test2:
        add r2, r3, r4
        extsh r2, r2
        srawi r3, r2, 1
        blr

instead of:

_test2:
        add r2, r3, r4
        extsh r2, r2
        srwi r2, r2, 1
        extsh r3, r2
        blr

llvm-svn: 28175

_test4:
        srawi r3, r3, 16
        blr

instead of:

_test4:
        srwi r2, r3, 16
        extsh r3, r2
        blr

for:

short test4(unsigned X) {
  return (X >> 16);
}

llvm-svn: 28174

llvm-svn: 28173

llvm-svn: 28172

short test4(unsigned X) {
  return (X >> 16);
}

to:

_test4:
        movl 4(%esp), %eax
        sarl $16, %eax
        ret

instead of:

_test4:
        movl $-65536, %eax
        andl 4(%esp), %eax
        sarl $16, %eax
        ret

llvm-svn: 28171

llvm-svn: 28170

llvm-svn: 28169