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aco/optimizer_postRA: Delete dead instructions more efficiently.

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Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18103>
This commit is contained in:
Timur Kristóf 2022-08-17 10:05:51 +02:00 • committed by Marge Bot
parent 7263a29794
commit 36bc3afb8b
1 changed files with 11 additions and 4 deletions
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15
src/amd/compiler/aco_optimizer_postRA.cpp
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@ -581,10 +581,17 @@ optimize_postRA(Program* program)
* no longer have any uses.
*/
for (auto& block : program->blocks) {
auto new_end = std::remove_if(block.instructions.begin(), block.instructions.end(),
[&ctx](const aco_ptr<Instruction>& instr)
{ return !instr || is_dead(ctx.uses, instr.get()); });
block.instructions.resize(new_end - block.instructions.begin());
std::vector<aco_ptr<Instruction>> instructions;
instructions.reserve(block.instructions.size());
for (aco_ptr<Instruction>& instr : block.instructions) {
if (!instr || is_dead(ctx.uses, instr.get()))
continue;
instructions.emplace_back(std::move(instr));
}
block.instructions = std::move(instructions);
}
}