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aco: better handle neg/abs of sgprs

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isel/label_instruction currently doesn't create these but we should
probably check anyway.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-By: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3081>
This commit is contained in:
Rhys Perry 2019-12-13 16:59:54 +00:00
parent f29a5a205c
commit 21eafe30df
1 changed files with 3 additions and 2 deletions
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5
src/amd/compiler/aco_optimizer.cpp
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@ -924,7 +924,8 @@ void label_instruction(opt_ctx &ctx, Block& block, aco_ptr<Instruction>& instr)
break;
}
case aco_opcode::v_and_b32: /* abs */
if (!instr->usesModifiers() && instr->operands[0].constantEquals(0x7FFFFFFF) && instr->operands[1].isTemp())
if (!instr->usesModifiers() && instr->operands[0].constantEquals(0x7FFFFFFF) &&
instr->operands[1].isTemp() && instr->operands[1].getTemp().type() == RegType::vgpr)
ctx.info[instr->definitions[0].tempId()].set_abs(instr->operands[1].getTemp());
else
ctx.info[instr->definitions[0].tempId()].set_bitwise(instr.get());
@ -933,7 +934,7 @@ void label_instruction(opt_ctx &ctx, Block& block, aco_ptr<Instruction>& instr)
if (!instr->usesModifiers() && instr->operands[0].constantEquals(0x80000000u) && instr->operands[1].isTemp()) {
if (ctx.info[instr->operands[1].tempId()].is_neg()) {
ctx.info[instr->definitions[0].tempId()].set_temp(ctx.info[instr->operands[1].tempId()].temp);
} else {
} else if (instr->operands[1].getTemp().type() == RegType::vgpr) {
if (ctx.info[instr->operands[1].tempId()].is_abs()) { /* neg(abs(x)) */
instr->operands[1].setTemp(ctx.info[instr->operands[1].tempId()].temp);
instr->opcode = aco_opcode::v_or_b32;