llvm-svn: 30583

llvm-svn: 30581

llvm-svn: 30580

llvm-svn: 30579

llvm-svn: 30578

llvm-svn: 30577

llvm-svn: 30576

call stack depth.

llvm-svn: 30575

This shrinks X86GenDAGISel by ~330 lines.

llvm-svn: 30574

llvm-svn: 30573

llvm-svn: 30572

llvm-svn: 30570

llvm-svn: 30569

llvm-svn: 30568

llvm-svn: 30567

llvm-svn: 30566

llvm-svn: 30561

llvm-svn: 30560

llvm-svn: 30559

int %test(ulong *%tmp) {
        %tmp = load ulong* %tmp         ; <ulong> [#uses=1]
        %tmp.mask = shr ulong %tmp, ubyte 50            ; <ulong> [#uses=1]
        %tmp.mask = cast ulong %tmp.mask to ubyte
        %tmp2 = and ubyte %tmp.mask, 3          ; <ubyte> [#uses=1]
        %tmp2 = cast ubyte %tmp2 to int         ; <int> [#uses=1]
        ret int %tmp2
}

to:

_test:
        movl 4(%esp), %eax
        movl 4(%eax), %eax
        shrl $18, %eax
        andl $3, %eax
        ret

instead of:

_test:
        movl 4(%esp), %eax
        movl 4(%eax), %eax
        shrl $18, %eax
        # TRUNCATE movb %al, %al
        andb $3, %al
        movzbl %al, %eax
        ret

llvm-svn: 30558

the src/dst are not the same size.  This catches things like "truncate
32-bit X to 8 bits, then zext to 16", which happens a bit on X86.

llvm-svn: 30557

llvm-svn: 30556

llvm-svn: 30555

llvm-svn: 30554

llvm-svn: 30553

llvm-svn: 30552

with the right answer.

llvm-svn: 30550

llvm-svn: 30549

llvm-svn: 30548

should create the right asmprinter subclass.

llvm-svn: 30542

llvm-svn: 30541

Fixes infinite loop in resolve().

llvm-svn: 30540

llvm-svn: 30535

llvm-svn: 30534

llvm-svn: 30533

llvm-svn: 30531

llvm-svn: 30530

llvm-svn: 30519

llvm-svn: 30518

int test3(int a, int b) { return (a < 0) ? a : 0; }

to:

_test3:
        srawi r2, r3, 31
        and r3, r2, r3
        blr

instead of:

_test3:
        cmpwi cr0, r3, 1
        li r2, 0
        blt cr0, LBB2_2 ;entry
LBB2_1: ;entry
        mr r3, r2
LBB2_2: ;entry
        blr


This implements: PowerPC/select_lt0.ll:seli32_a_a

llvm-svn: 30517