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shader: drop the duplicate-use scan from Inst::AddUse

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nmzik committed 2026-10-27 04:23:01 +01:00
1 parent 91a5ff6cb7
commit 7eb8abb279
2 files changed
+6 -5
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tests/ScalarProvenanceTests.cpp
+6 -2
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@@ -300,8 +300,12 @@ void TestOperandMutationLifecycle() {
auto *source = definition.TryInstruction();
const auto inserted = fixture.Emit(ValueOpcode::BitFieldInsert,
{definition, definition, Value(4u), Value(4u)});
Check(source->UseCount() == 2, "inline operands lost distinct reverse-use indices");
inserted.TryInstruction()->SetArg(1, Value(3u));
auto *consumer = inserted.TryInstruction();
Check(source->Uses() == std::vector<Use>({{consumer, 0}, {consumer, 1}}),
"inline operands lost distinct reverse-use indices");
consumer->SetArg(0, definition);
Check(source->UseCount() == 2, "re-setting an operand to its value duplicated its use");
consumer->SetArg(1, Value(3u));
Check(source->UseCount() == 1, "inline operand mutation did not detach its old use");
source->ReplaceUsesWith(Value(0xaau));
uint32_t result = 0;