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aco: check if SALU instructions are predeceeded by exec when calculating WQM needs

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Reviewed-By: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
This commit is contained in:
Daniel Schürmann
2019-11-11 16:21:51 +01:00
committed by Timur Kristóf
parent ee9811a0bb
commit 8657eede8a
3 changed files with 13 additions and 10 deletions
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5
src/amd/compiler/aco_insert_exec_mask.cpp
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@@ -95,6 +95,8 @@ struct exec_ctx {
};
bool pred_by_exec_mask(aco_ptr<Instruction>& instr) {
if (instr->isSALU())
return instr->reads_exec();
if (instr->format == Format::SMEM || instr->isSALU())
return false;
if (instr->format == Format::PSEUDO_BARRIER)
@@ -200,8 +202,7 @@ void get_block_needs(wqm_ctx &ctx, exec_ctx &exec_ctx, Block* block)
ctx.wqm = false;
}
for (int i = block->instructions.size() - 1; i >= 0; --i)
{
for (int i = block->instructions.size() - 1; i >= 0; --i) {
aco_ptr<Instruction>& instr = block->instructions[i];
WQMState needs = needs_exact(instr) ? Exact : Unspecified;