nv50/ir: Add sat modifier for mul

Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit is contained in:
Roy Spliet 2015-01-05 00:22:17 +01:00 committed by Ilia Mirkin
parent ec3e1e6194
commit 44673512a8
2 changed files with 7 additions and 1 deletions

View file

@ -1059,16 +1059,22 @@ CodeEmitterNV50::emitFMUL(const Instruction *i)
emitForm_IMM(i);
if (neg)
code[0] |= 0x8000;
if (i->saturate)
code[0] |= 1 << 8;
} else
if (i->encSize == 8) {
code[1] = i->rnd == ROUND_Z ? 0x0000c000 : 0;
if (neg)
code[1] |= 0x08000000;
if (i->saturate)
code[1] |= 1 << 20;
emitForm_MAD(i);
} else {
emitForm_MUL(i);
if (neg)
code[0] |= 0x8000;
if (i->saturate)
code[0] |= 1 << 8;
}
}

View file

@ -84,7 +84,7 @@ static const struct opProperties _initProps[] =
// neg abs not sat c[] s[], a[], imm
{ OP_ADD, 0x3, 0x0, 0x0, 0x8, 0x2, 0x1, 0x1, 0x2 },
{ OP_SUB, 0x3, 0x0, 0x0, 0x0, 0x2, 0x1, 0x1, 0x2 },
{ OP_MUL, 0x3, 0x0, 0x0, 0x0, 0x2, 0x1, 0x1, 0x2 },
{ OP_MUL, 0x3, 0x0, 0x0, 0x8, 0x2, 0x1, 0x1, 0x2 },
{ OP_MAX, 0x3, 0x3, 0x0, 0x0, 0x2, 0x1, 0x1, 0x0 },
{ OP_MIN, 0x3, 0x3, 0x0, 0x0, 0x2, 0x1, 0x1, 0x0 },
{ OP_MAD, 0x7, 0x0, 0x0, 0x8, 0x6, 0x1, 0x1, 0x0 }, // special constraint