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nvc0/ir: add f32 long immediate cannot saturate

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Cc: "9.2" <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Christoph Bumiller 2013-06-30 15:23:15 +02:00 • committed by Christoph Bumiller
parent 7086636358
commit 5399206056
1 changed files with 12 additions and 0 deletions
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12
src/gallium/drivers/nvc0/codegen/nv50_ir_target_nvc0.cpp
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@ -337,6 +337,11 @@ TargetNVC0::insnCanLoad(const Instruction *i, int s,
// (except if we implement more constraints)
if (ld->getSrc(0)->asImm()->reg.data.u32 & 0xfff)
return false;
} else
if (i->op == OP_ADD && i->sType == TYPE_F32) {
// add f32 LIMM cannot saturate
if (i->saturate && (reg.data.u32 & 0xfff))
return false;
}
}
@ -431,6 +436,13 @@ TargetNVC0::isSatSupported(const Instruction *insn) const
if (insn->dType == TYPE_U32)
return (insn->op == OP_ADD) || (insn->op == OP_MAD);
// add f32 LIMM cannot saturate
if (insn->op == OP_ADD && insn->sType == TYPE_F32) {
if (insn->getSrc(1)->asImm() &&
insn->getSrc(1)->reg.data.u32 & 0xfff)
return false;
}
return insn->dType == TYPE_F32;
}