llvm-svn: 30483

like:
long long test(long long X, int Y) {
  return 1ULL << Y;
}
long long test2(long long X, int Y) {
  return -1LL << Y;
}

which we used to compile to:

_test:
        li r2, 1
        subfic r3, r5, 32
        li r4, 0
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r4, r5
        slw r6, r2, r6
        or r3, r4, r3
        slw r4, r2, r5
        or r3, r3, r6
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

Now we produce:

_test:
        li r2, 1
        addi r3, r5, -32
        subfic r4, r5, 32
        slw r3, r2, r3
        srw r4, r2, r4
        or r3, r4, r3
        slw r4, r2, r5
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

llvm-svn: 30479

A pass to remove the worst of the replay trap offenders, and as a bonus, align basic blocks when it is free to do so

llvm-svn: 30467

llvm-svn: 30463

llvm-svn: 30457

llvm-svn: 30451

Added X86 StdCall & FastCall calling conventions. Codegen will follow.

llvm-svn: 30446

llvm-svn: 30441

llvm-svn: 30418

llvm-svn: 30406

llvm-svn: 30399

llvm-svn: 30382

llvm-svn: 30377

DLL* linkages got full (I hope) codegeneration support in C & both x86
assembler backends.
External weak linkage added for future use, we don't provide any
codegeneration, etc. support for it.

llvm-svn: 30374

llvm-svn: 30308

llvm-svn: 30300

llvm-svn: 30294

llvm-svn: 30293

llvm-svn: 30291

We now compile CodeGen/X86/lea-2.ll into:

_test:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        leal -5(%ecx,%eax,4), %eax
        ret

instead of:

_test:
        movl 4(%esp), %eax
        leal (,%eax,4), %eax
        addl 8(%esp), %eax
        addl $4294967291, %eax
        ret

llvm-svn: 30288

llvm-svn: 30286

llvm-svn: 30285

This implements CodeGen/X86/jump_sign.ll.

llvm-svn: 30283

llvm-svn: 30279

llvm-svn: 30271

llvm-svn: 30269

llvm-svn: 30268

llvm-svn: 30262

llvm-svn: 30261

llvm-svn: 30252

llvm-svn: 30246

llvm-svn: 30245

llvm-svn: 30244

operand of a conditional branch to allow load folding into CMP / TEST
instructions.

llvm-svn: 30241

llvm-svn: 30240

llvm-svn: 30239

llvm-svn: 30226

the file now, however the relocated address is currently wrong.  Fixing
that will require some deep pondering.

llvm-svn: 30207

in addition to immediate operands.

llvm-svn: 30205

llvm-svn: 30191