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glsl: Rework var alloc to not assign unused results

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This commit is contained in:
ameerj 2021-05-30 19:13:22 -04:00
parent 1269a0cf8b
commit 9f3ffb996b
9 changed files with 91 additions and 49 deletions
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8
src/shader_recompiler/backend/glsl/emit_context.h
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@ -37,7 +37,13 @@ public:
template <GlslVarType type, typename... Args>
void Add(const char* format_str, IR::Inst& inst, Args&&... args) {
code += fmt::format(format_str, var_alloc.Define(inst, type), std::forward<Args>(args)...);
const auto var_def{var_alloc.AddDefine(inst, type)};
if (var_def.empty()) {
// skip assigment.
code += fmt::format(&format_str[3], std::forward<Args>(args)...);
} else {
code += fmt::format(format_str, var_def, std::forward<Args>(args)...);
}
// TODO: Remove this
code += '\n';
}