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add andn/orn/xorn patterns. This allows us to compile this: 

long %test(ubyte, short, long %X, long %Y) {
  %A = xor long %X, -1
  %B = and long %Y, %A
  ret long %B
}

to this:

test:
        save -96, %sp, %sp
        andn %i4, %i2, %i0
        andn %i5, %i3, %i1
        restore %g0, %g0, %g0
        retl
        nop

instead of this:

test:
        save -96, %sp, %sp
        xor %i2, -1, %l0
        xor %i3, -1, %l1
        and %i4, %l0, %i0
        and %i5, %l1, %i1
        restore %g0, %g0, %g0
        retl
        nop

The simpleisel emits:  :(

test:
        save -96, %sp, %sp
        or %g0, -1, %l0
        or %g0, -1, %l0
        or %g0, -1, %l0
        or %g0, -1, %l1
        xor %i2, %l0, %l0
        xor %i3, %l1, %l1
        and %i4, %l0, %i0
        and %i5, %l1, %i1
        restore %g0, %g0, %g0
        retl
        nop

llvm-svn: 24793
This commit is contained in:
Chris Lattner 2005-12-17 21:05:49 +00:00
parent ea752cc50a
commit e39ab718c0
1 changed files with 6 additions and 3 deletions
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9
llvm/lib/Target/SparcV8/SparcV8InstrInfo.td
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@ -250,7 +250,8 @@ def ANDCCri : F3_2<2, 0b010001,
"andcc $b, $c, $dst", []>;
def ANDNrr : F3_1<2, 0b000101,
(ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
"andn $b, $c, $dst", []>;
"andn $b, $c, $dst",
[(set IntRegs:$dst, (and IntRegs:$b, (not IntRegs:$c)))]>;
def ANDNri : F3_2<2, 0b000101,
(ops IntRegs:$dst, IntRegs:$b, i32imm:$c),
"andn $b, $c, $dst", []>;
@ -276,7 +277,8 @@ def ORCCri : F3_2<2, 0b010010,
"orcc $b, $c, $dst", []>;
def ORNrr : F3_1<2, 0b000110,
(ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
"orn $b, $c, $dst", []>;
"orn $b, $c, $dst",
[(set IntRegs:$dst, (or IntRegs:$b, (not IntRegs:$c)))]>;
def ORNri : F3_2<2, 0b000110,
(ops IntRegs:$dst, IntRegs:$b, i32imm:$c),
"orn $b, $c, $dst", []>;
@ -302,7 +304,8 @@ def XORCCri : F3_2<2, 0b010011,
"xorcc $b, $c, $dst", []>;
def XNORrr : F3_1<2, 0b000111,
(ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
"xnor $b, $c, $dst", []>;
"xnor $b, $c, $dst",
[(set IntRegs:$dst, (xor IntRegs:$b, (not IntRegs:$c)))]>;
def XNORri : F3_2<2, 0b000111,
(ops IntRegs:$dst, IntRegs:$b, i32imm:$c),
"xnor $b, $c, $dst", []>;