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shader: Fix block processing order in dead code elimination pass

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This commit is contained in:
raphaelthegreat
2024-06-06 02:24:30 +03:00
parent 705d326a6d
commit 5aa3a4d4a0
10 changed files with 60 additions and 75 deletions
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6
src/shader_recompiler/ir/passes/dead_code_elimination_pass.cpp
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@@ -5,10 +5,10 @@
namespace Shader::Optimization {
void DeadCodeEliminationPass(IR::BlockList& program) {
void DeadCodeEliminationPass(IR::Program& program) {
// We iterate over the instructions in reverse order.
// This is because removing an instruction reduces the number of uses for earlier instructions.
for (IR::Block* const block : program) {
for (IR::Block* const block : program.post_order_blocks) {
auto it{block->end()};
while (it != block->begin()) {
--it;
@@ -20,4 +20,4 @@ void DeadCodeEliminationPass(IR::BlockList& program) {
}
}
} // namespace Shader::Optimization
} // namespace Shader::Optimization

2
src/shader_recompiler/ir/passes/ir_passes.h
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@@ -10,7 +10,7 @@ namespace Shader::Optimization {
void SsaRewritePass(IR::BlockList& program);
void IdentityRemovalPass(IR::BlockList& program);
void DeadCodeEliminationPass(IR::BlockList& program);
void DeadCodeEliminationPass(IR::Program& program);
void ConstantPropagationPass(IR::BlockList& program);
void ResourceTrackingPass(IR::Program& program);
void CollectShaderInfoPass(IR::Program& program);

1
src/shader_recompiler/ir/value.h
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@@ -219,7 +219,6 @@ using U64 = TypedValue<Type::U64>;
using F16 = TypedValue<Type::F16>;
using F32 = TypedValue<Type::F32>;
using F64 = TypedValue<Type::F64>;
using U1U32F32 = TypedValue<Type::U1 | Type::U32 | Type::F32>;
using U32F32 = TypedValue<Type::U32 | Type::F32>;
using U32U64 = TypedValue<Type::U32 | Type::U64>;
using F32F64 = TypedValue<Type::F32 | Type::F64>;