glasm: Skip phi moves on undefined instructions

2021-05-26 15:41:53 -03:00 · 2021-05-26 15:41:53 -03:00 · 586c785366
commit 586c785366
parent b9c8814ea9
2 changed files with 16 additions and 1 deletions
--- a/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp
+++ b/src/shader_recompiler/backend/glasm/emit_glasm_not_implemented.cpp
@ -58,7 +58,9 @@ void EmitPhiMove(EmitContext& ctx, const IR::Value& phi_value, const IR::Value&
    }
    const Register phi_reg{ctx.reg_alloc.Consume(IR::Value{&phi})};
    const Value eval_value{ctx.reg_alloc.Consume(value)};
-
+    if (!value.IsImmediate() && IR::IsUndef(RegAlloc::AliasInst(*value.Inst()))) {
+        return;
+    }
    if (phi_reg == eval_value) {
        return;
    }