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authorReinUsesLisp <reinuseslisp@airmail.cc>2021-04-01 06:07:51 +0200
committerameerj <52414509+ameerj@users.noreply.github.com>2021-07-23 03:51:25 +0200
commitf1dd743731bd0e7b7f1ef172882971bcd15eb5bc (patch)
treebd3cf90bce9b0b4ecafb12bd269a250c000336d4 /src/shader_recompiler/backend/spirv/emit_spirv.cpp
parentshader: Fix constant propagation to use reverse post order (diff)
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Diffstat (limited to '')
-rw-r--r--src/shader_recompiler/backend/spirv/emit_spirv.cpp9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv.cpp b/src/shader_recompiler/backend/spirv/emit_spirv.cpp
index 6389d80bf..9dc769307 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv.cpp
@@ -250,7 +250,7 @@ Id PhiArgDef(EmitContext& ctx, IR::Inst* inst, size_t index) {
// Let the context handle immediate definitions, as it already knows how
return ctx.Def(arg);
}
- IR::Inst* const arg_inst{arg.Inst()};
+ IR::Inst* const arg_inst{arg.InstRecursive()};
if (const Id def{arg_inst->Definition<Id>()}; Sirit::ValidId(def)) {
// Return the current definition if it exists
return def;
@@ -296,7 +296,12 @@ Id EmitPhi(EmitContext& ctx, IR::Inst* inst) {
void EmitVoid(EmitContext&) {}
Id EmitIdentity(EmitContext& ctx, const IR::Value& value) {
- return ctx.Def(value);
+ if (const Id id = ctx.Def(value); Sirit::ValidId(id)) {
+ return id;
+ }
+ const Id def{ctx.ForwardDeclarationId()};
+ value.InstRecursive()->SetDefinition<Id>(def);
+ return def;
}
void EmitGetZeroFromOp(EmitContext&) {