| ; RUN: llc -march=hexagon -enable-pipeliner -fp-contract=fast < %s |
| ; REQUIRES: asserts |
| |
| ; Test that the code which reuses existing Phis works when the Phis are used |
| ; in multiple stages. In this case, one can be reused, but the other must be |
| ; generated. |
| |
| ; Function Attrs: nounwind |
| define void @f0(i32 %a0) #0 { |
| b0: |
| %v0 = icmp sgt i32 %a0, 0 |
| br i1 %v0, label %b1, label %b2 |
| |
| b1: ; preds = %b1, %b0 |
| %v1 = phi i32 [ %v11, %b1 ], [ 0, %b0 ] |
| %v2 = phi float [ %v4, %b1 ], [ undef, %b0 ] |
| %v3 = phi float [ %v2, %b1 ], [ undef, %b0 ] |
| %v4 = load float, float* undef, align 4 |
| %v5 = fmul float %v4, 0x3FEFAA0000000000 |
| %v6 = fadd float undef, %v5 |
| %v7 = fmul float %v2, 0xBFFFAA0000000000 |
| %v8 = fadd float %v7, %v6 |
| %v9 = fmul float %v3, 0x3FEFAA0000000000 |
| %v10 = fadd float %v9, %v8 |
| store float %v10, float* undef, align 4 |
| %v11 = add nsw i32 %v1, 1 |
| %v12 = icmp eq i32 %v11, %a0 |
| br i1 %v12, label %b2, label %b1 |
| |
| b2: ; preds = %b1, %b0 |
| ret void |
| } |
| |
| attributes #0 = { nounwind "target-cpu"="hexagonv55" } |
