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aco: consider loop_exit blocks like merge blocks, even if they have only one predecessor

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Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
This commit is contained in:
Daniel Schürmann 2019-10-30 12:04:22 +01:00
parent d48d72e98a
commit fdf8ad0256
1 changed files with 2 additions and 2 deletions
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4
src/amd/compiler/aco_spill.cpp
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@ -467,7 +467,7 @@ RegisterDemand init_live_in_vars(spill_ctx& ctx, Block* block, unsigned block_id
}
/* branch block */
if (block->linear_preds.size() == 1) {
if (block->linear_preds.size() == 1 && !(block->kind & block_kind_loop_exit)) {
/* keep variables spilled if they are alive and not used in the current block */
unsigned pred_idx = block->linear_preds[0];
for (std::pair<Temp, uint32_t> pair : ctx.spills_exit[pred_idx]) {
@ -654,7 +654,7 @@ void add_coupling_code(spill_ctx& ctx, Block* block, unsigned block_idx)
std::vector<aco_ptr<Instruction>> instructions;
/* branch block: TODO take other branch into consideration */
if (block->linear_preds.size() == 1) {
if (block->linear_preds.size() == 1 && !(block->kind & block_kind_loop_exit)) {
assert(ctx.processed[block->linear_preds[0]]);
if (block->logical_preds.size() == 1) {