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aco: fix new_demand calculation for first instructions 

Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
This commit is contained in:
Rhys Perry 2019-10-30 18:00:36 +00:00 committed by Daniel Schürmann
parent 93b42a1907
commit e73de4e1d8
1 changed files with 7 additions and 4 deletions
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11
src/amd/compiler/aco_spill.cpp
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@ -1033,11 +1033,14 @@ void process_block(spill_ctx& ctx, unsigned block_idx, Block* block,
RegisterDemand new_demand = ctx.register_demand[block_idx][idx];
if (idx == 0) {
for (const Definition& def : instr->definitions) {
if (!def.isTemp())
continue;
new_demand += def.getTemp();
RegisterDemand demand_before = new_demand;
for (const Definition& def : instr->definitions)
demand_before -= def.getTemp();
for (const Operand& op : instr->operands) {
if (op.isFirstKill())
demand_before += op.getTemp();
}
new_demand.update(demand_before);
} else {
new_demand.update(ctx.register_demand[block_idx][idx - 1]);
}