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-rw-r--r--src/ir.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/ir.cpp b/src/ir.cpp
index 99af2e7861..d50229925c 100644
--- a/src/ir.cpp
+++ b/src/ir.cpp
@@ -17695,6 +17695,8 @@ static IrInstruction *ir_analyze_instruction_phi(IrAnalyze *ira, IrInstructionPh
peer_parent->resolved_type = ir_resolve_peer_types(ira,
peer_parent->base.source_instruction->source_node, expected_type, instructions,
peer_parent->peers.length);
+ if (type_is_invalid(peer_parent->resolved_type))
+ return ira->codegen->invalid_instruction;
// the logic below assumes there are no instructions in the new current basic block yet
ir_assert(ira->new_irb.current_basic_block->instruction_list.length == 0, &phi_instruction->base);