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shader: preserve folded native constants for descriptor provenance

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This commit is contained in:
nmzik
2026-10-15 23:17:01 +02:00
parent e4019af522
commit c8caa27936
11 changed files with 111 additions and 43 deletions
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tests/ScalarProvenanceTests.cpp
+3 -4
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@@ -718,7 +718,7 @@ void TestCompleteUMinReduction() {
Check(reduction->GetOpcode() == ValueOpcode::SubgroupUMinU32 &&
reduction->Arg(0).Resolve() == seed.Resolve(),
"UMin reduction changed the neutral-masked input");
RemoveIdentities(fixture.program.blocks);
RemoveIdentities(fixture.program);
EliminateDeadCode(fixture.program.blocks);
uint32_t updates = 0;
for (const auto &inst : fixture.BlockAt()) {
@@ -745,7 +745,7 @@ void TestOptimizationPipeline() {
fixture.Emit(ValueOpcode::IMul32, {Value(6u), Value(7u)});
ConstantPropagationPass(fixture.program.blocks);
RemoveIdentities(fixture.program.blocks);
RemoveIdentities(fixture.program);
EliminateDeadCode(fixture.program.blocks);
const auto &instructions = fixture.BlockAt().Instructions();
@@ -785,8 +785,7 @@ void TestControlFlowValueSurvivesReadLaneFolding() {
Check(EliminateReadLane(fixture.program, 64).rewritten_reads == 1,
"control-flow fixture did not eliminate its fixed-lane read");
ConstantPropagationPass(fixture.program.blocks);
ResolveControlFlowIdentities(fixture.program);
RemoveIdentities(fixture.program.blocks);
RemoveIdentities(fixture.program);
EliminateDeadCode(fixture.program.blocks);
Check(entry_info.condition == Value(true),