1 ; RUN: llvm-as %s -o /dev/null 2 ; RUN: verify-uselistorder %s 3 4 ; Dominance relationships is not calculated correctly for unreachable blocks, 5 ; which causes the verifier to barf on this input. 6 7 define i32 @test(i1 %b) { 8 BB0: 9 ret i32 7 ; Loop is unreachable 10 11 Loop: ; preds = %L2, %Loop 12 %B = phi i32 [ %B, %L2 ], [ %B, %Loop ] ;PHI has same value always. 13 br i1 %b, label %L2, label %Loop 14 15 L2: ; preds = %Loop 16 br label %Loop 17 } 18 19