glasm: Skip phi moves on undefined instructions

2021-05-26 15:41:53 -03:00
parent b9c8814ea9
commit 586c785366
2 changed files with 16 additions and 1 deletions
--- a/src/shader_recompiler/frontend/ir/value.h
+++ b/src/shader_recompiler/frontend/ir/value.h
@@ -395,4 +395,17 @@ inline f64 Value::F64() const {
    return inst.GetOpcode() == Opcode::Phi;
 }

+[[nodiscard]] inline bool IsUndef(const Inst& inst) {
+    switch (inst.GetOpcode()) {
+    case Opcode::UndefU1:
+    case Opcode::UndefU8:
+    case Opcode::UndefU16:
+    case Opcode::UndefU32:
+    case Opcode::UndefU64:
+        return true;
+    default:
+        return false;
+    }
+}
+
 } // namespace Shader::IR