|  | ; RUN: llc -O2 -march=hexagon -hexagon-expand-condsets=0 < %s | 
|  | ; REQUIRES: asserts | 
|  | ; Disable expand-condsets because it will assert on undefined registers. | 
|  |  | 
|  | target triple = "hexagon-unknown--elf" | 
|  |  | 
|  | %s.0 = type { %s.0*, %s.0* } | 
|  | %s.1 = type { %s.1*, %s.1** } | 
|  |  | 
|  | @g0 = external global %s.0, align 4 | 
|  |  | 
|  | ; Function Attrs: nounwind | 
|  | define void @f0() #0 { | 
|  | b0: | 
|  | br i1 undef, label %b2, label %b1 | 
|  |  | 
|  | b1:                                               ; preds = %b0 | 
|  | unreachable | 
|  |  | 
|  | b2:                                               ; preds = %b0 | 
|  | br i1 undef, label %b26, label %b3 | 
|  |  | 
|  | b3:                                               ; preds = %b2 | 
|  | br i1 undef, label %b6, label %b4 | 
|  |  | 
|  | b4:                                               ; preds = %b3 | 
|  | br i1 undef, label %b5, label %b26 | 
|  |  | 
|  | b5:                                               ; preds = %b4 | 
|  | br i1 undef, label %b7, label %b26 | 
|  |  | 
|  | b6:                                               ; preds = %b3 | 
|  | br label %b7 | 
|  |  | 
|  | b7:                                               ; preds = %b6, %b5 | 
|  | br i1 undef, label %b11, label %b8 | 
|  |  | 
|  | b8:                                               ; preds = %b7 | 
|  | br i1 undef, label %b10, label %b9 | 
|  |  | 
|  | b9:                                               ; preds = %b8 | 
|  | unreachable | 
|  |  | 
|  | b10:                                              ; preds = %b8 | 
|  | unreachable | 
|  |  | 
|  | b11:                                              ; preds = %b7 | 
|  | br i1 undef, label %b25, label %b12 | 
|  |  | 
|  | b12:                                              ; preds = %b11 | 
|  | br i1 undef, label %b14, label %b13 | 
|  |  | 
|  | b13:                                              ; preds = %b12 | 
|  | br label %b14 | 
|  |  | 
|  | b14:                                              ; preds = %b13, %b12 | 
|  | br i1 undef, label %b15, label %b16 | 
|  |  | 
|  | b15:                                              ; preds = %b14 | 
|  | br label %b16 | 
|  |  | 
|  | b16:                                              ; preds = %b15, %b14 | 
|  | br i1 undef, label %b18, label %b17 | 
|  |  | 
|  | b17:                                              ; preds = %b16 | 
|  | unreachable | 
|  |  | 
|  | b18:                                              ; preds = %b16 | 
|  | %v0 = load %s.0*, %s.0** getelementptr inbounds (%s.0, %s.0* @g0, i32 0, i32 1), align 4 | 
|  | %v1 = load %s.0*, %s.0** getelementptr inbounds (%s.0, %s.0* @g0, i32 0, i32 0), align 4 | 
|  | %v2 = select i1 undef, %s.0* %v0, %s.0* %v1 | 
|  | br i1 undef, label %b22, label %b19 | 
|  |  | 
|  | b19:                                              ; preds = %b18 | 
|  | %v3 = load %s.1*, %s.1** undef, align 4 | 
|  | %v4 = icmp eq %s.1* %v3, null | 
|  | br i1 %v4, label %b21, label %b20 | 
|  |  | 
|  | b20:                                              ; preds = %b19 | 
|  | store %s.1** undef, %s.1*** undef, align 4 | 
|  | br label %b21 | 
|  |  | 
|  | b21:                                              ; preds = %b20, %b19 | 
|  | br label %b22 | 
|  |  | 
|  | b22:                                              ; preds = %b21, %b18 | 
|  | br i1 undef, label %b24, label %b23 | 
|  |  | 
|  | b23:                                              ; preds = %b22 | 
|  | store %s.0* %v2, %s.0** undef, align 4 | 
|  | br label %b24 | 
|  |  | 
|  | b24:                                              ; preds = %b23, %b22 | 
|  | unreachable | 
|  |  | 
|  | b25:                                              ; preds = %b11 | 
|  | unreachable | 
|  |  | 
|  | b26:                                              ; preds = %b5, %b4, %b2 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | attributes #0 = { nounwind "target-cpu"="hexagonv55" } |