| Krzysztof Parzyszek | 046090d | 2018-03-12 14:01:28 +0000 | [diff] [blame] | 1 | ; RUN: llc -fp-contract=fast -O3 -march=hexagon < %s |
| 2 | ; REQUIRES: asserts |
| 3 | |
| 4 | ; Test that the pipeliner doesn't ICE due because the PHI generation |
| 5 | ; code in the epilog does not attempt to reuse an existing PHI. |
| 6 | ; Similar test case as swp-epilog-reuse.ll but with a couple of |
| 7 | ; differences. |
| 8 | |
| 9 | ; Function Attrs: nounwind |
| 10 | define void @f0(float* noalias %a0, float* noalias %a1) #0 { |
| 11 | b0: |
| 12 | %v0 = getelementptr inbounds float, float* %a1, i32 2 |
| 13 | br i1 undef, label %b1, label %b6 |
| 14 | |
| 15 | b1: ; preds = %b5, %b0 |
| 16 | %v1 = phi float* [ undef, %b5 ], [ %v0, %b0 ] |
| 17 | %v2 = phi float* [ %v32, %b5 ], [ undef, %b0 ] |
| 18 | %v3 = getelementptr inbounds float, float* %a0, i32 undef |
| 19 | %v4 = getelementptr inbounds float, float* %v1, i32 1 |
| 20 | br i1 undef, label %b2, label %b5 |
| 21 | |
| 22 | b2: ; preds = %b1 |
| 23 | %v5 = getelementptr float, float* %v3, i32 1 |
| 24 | br label %b3 |
| 25 | |
| 26 | b3: ; preds = %b3, %b2 |
| 27 | %v6 = phi float* [ %v5, %b2 ], [ %v20, %b3 ] |
| 28 | %v7 = phi float [ %v19, %b3 ], [ undef, %b2 ] |
| 29 | %v8 = phi float [ %v7, %b3 ], [ undef, %b2 ] |
| 30 | %v9 = phi float* [ %v15, %b3 ], [ %v4, %b2 ] |
| 31 | %v10 = bitcast float* %v6 to i8* |
| 32 | %v11 = fadd float undef, 0.000000e+00 |
| 33 | %v12 = fadd float undef, %v11 |
| 34 | %v13 = fadd float %v7, %v12 |
| 35 | %v14 = fmul float %v13, 3.906250e-03 |
| 36 | %v15 = getelementptr inbounds float, float* %v9, i32 1 |
| 37 | store float %v14, float* %v9, align 4, !tbaa !0 |
| 38 | %v16 = getelementptr i8, i8* %v10, i32 undef |
| 39 | %v17 = bitcast i8* %v16 to float* |
| 40 | %v18 = load float, float* %v17, align 4, !tbaa !0 |
| 41 | %v19 = fadd float %v18, undef |
| 42 | %v20 = getelementptr float, float* %v6, i32 2 |
| 43 | %v21 = icmp ult float* %v15, %v2 |
| 44 | br i1 %v21, label %b3, label %b4 |
| 45 | |
| 46 | b4: ; preds = %b3 |
| 47 | %v22 = getelementptr float, float* %v4, i32 undef |
| 48 | br label %b5 |
| 49 | |
| 50 | b5: ; preds = %b4, %b1 |
| 51 | %v23 = phi float* [ %v4, %b1 ], [ %v22, %b4 ] |
| 52 | %v24 = phi float [ undef, %b1 ], [ %v8, %b4 ] |
| 53 | %v25 = fadd float %v24, undef |
| 54 | %v26 = fadd float %v25, undef |
| 55 | %v27 = fadd float undef, %v26 |
| 56 | %v28 = fadd float undef, %v27 |
| 57 | %v29 = fpext float %v28 to double |
| 58 | %v30 = fmul double %v29, 0x3F7111112119E8FB |
| 59 | %v31 = fptrunc double %v30 to float |
| 60 | store float %v31, float* %v23, align 4, !tbaa !0 |
| 61 | %v32 = getelementptr inbounds float, float* %v2, i32 undef |
| 62 | br i1 undef, label %b1, label %b6 |
| 63 | |
| 64 | b6: ; preds = %b5, %b0 |
| 65 | ret void |
| 66 | } |
| 67 | |
| 68 | attributes #0 = { nounwind "target-cpu"="hexagonv55" } |
| 69 | |
| 70 | !0 = !{!1, !1, i64 0} |
| 71 | !1 = !{!"omnipotent char", !2, i64 0} |
| 72 | !2 = !{!"Simple C/C++ TBAA"} |