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-rw-r--r--src/shader_recompiler/ir_opt/ssa_rewrite_pass.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/shader_recompiler/ir_opt/ssa_rewrite_pass.cpp b/src/shader_recompiler/ir_opt/ssa_rewrite_pass.cpp
index 346fcc377..ddd679e39 100644
--- a/src/shader_recompiler/ir_opt/ssa_rewrite_pass.cpp
+++ b/src/shader_recompiler/ir_opt/ssa_rewrite_pass.cpp
@@ -176,6 +176,8 @@ public:
} else if (!sealed_blocks.contains(block)) {
// Incomplete CFG
IR::Inst* phi{&*block->PrependNewInst(block->begin(), IR::Opcode::Phi)};
+ phi->SetFlags(IR::TypeOf(UndefOpcode(variable)));
+
incomplete_phis[block].insert_or_assign(variable, phi);
stack.back().result = IR::Value{&*phi};
} else if (const std::span imm_preds{block->ImmediatePredecessors()};
@@ -187,6 +189,8 @@ public:
} else {
// Break potential cycles with operandless phi
IR::Inst* const phi{&*block->PrependNewInst(block->begin(), IR::Opcode::Phi)};
+ phi->SetFlags(IR::TypeOf(UndefOpcode(variable)));
+
WriteVariable(variable, block, IR::Value{phi});
stack.back().phi = phi;