Krzysztof Parzyszek | 046090d | 2018-03-12 14:01:28 +0000 | [diff] [blame] | 1 | ; RUN: llc -march=hexagon -enable-pipeliner < %s |
| 2 | ; REQUIRES: asserts |
| 3 | |
| 4 | ; This test check that a dependence is created between a Phi and it's uses. |
| 5 | ; An assert occurs if the Phi dependences are not correct. |
| 6 | |
| 7 | define void @f0(float* nocapture %a0, i32 %a1) #0 { |
| 8 | b0: |
| 9 | br i1 undef, label %b1, label %b2 |
| 10 | |
| 11 | b1: ; preds = %b1, %b0 |
| 12 | %v0 = phi float [ %v1, %b1 ], [ undef, %b0 ] |
| 13 | %v1 = phi float [ %v13, %b1 ], [ undef, %b0 ] |
| 14 | %v2 = phi float* [ null, %b1 ], [ %a0, %b0 ] |
| 15 | %v3 = phi i32 [ %v14, %b1 ], [ 0, %b0 ] |
| 16 | %v4 = phi float [ %v5, %b1 ], [ undef, %b0 ] |
| 17 | %v5 = load float, float* %v2, align 4 |
| 18 | %v6 = fmul float %v1, 0x3FFFA98000000000 |
| 19 | %v7 = fmul float %v0, 0xBFEF550000000000 |
| 20 | %v8 = fadd float %v6, %v7 |
| 21 | %v9 = fmul float %v5, 0x3FEFAA0000000000 |
| 22 | %v10 = fadd float %v8, %v9 |
| 23 | %v11 = fmul float %v4, 0xBFFFAA0000000000 |
| 24 | %v12 = fadd float %v11, %v10 |
| 25 | %v13 = fadd float undef, %v12 |
| 26 | store float %v13, float* %v2, align 4 |
| 27 | %v14 = add nsw i32 %v3, 1 |
| 28 | %v15 = icmp eq i32 %v14, %a1 |
| 29 | br i1 %v15, label %b2, label %b1 |
| 30 | |
| 31 | b2: ; preds = %b1, %b0 |
| 32 | ret void |
| 33 | } |
| 34 | |
| 35 | attributes #0 = { nounwind "target-cpu"="hexagonv55" } |