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aco: don't propagate SGPRs into subdword PSEUDO instructions

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Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-By: Timur Kristóf <timur.kristof@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4002>
This commit is contained in:
Daniel Schürmann
2020-02-21 17:06:32 +01:00
parent 8f1712ba2f
commit c436743b0c
1 changed files with 6 additions and 2 deletions
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src/amd/compiler/aco_optimizer.cpp
+6 -2
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@@ -698,8 +698,12 @@ void label_instruction(opt_ctx &ctx, Block& block, aco_ptr<Instruction>& instr)
/* SALU / PSEUDO: propagate inline constants */
if (instr->isSALU() || instr->format == Format::PSEUDO) {
if (info.is_temp() && info.temp.type() == RegType::sgpr) {
instr->operands[i].setTemp(info.temp);
info = ctx.info[info.temp.id()];
const bool is_subdword = std::any_of(instr->definitions.begin(), instr->definitions.end(),
[] (const Definition& def) { return def.regClass().is_subdword();});
if (instr->isSALU() || !is_subdword) {
instr->operands[i].setTemp(info.temp);
info = ctx.info[info.temp.id()];
}
} else if (info.is_temp() && info.temp.type() == RegType::vgpr) {
/* propagate vgpr if it can take it */
switch (instr->opcode) {