| Krzysztof Parzyszek | 046090d | 2018-03-12 14:01:28 +0000 | [diff] [blame^] | 1 | ; RUN: llc -march=hexagon -enable-pipeliner -pipeliner-max-stages=2 < %s | FileCheck %s |
| 2 | |
| 3 | ; Check that the pipelined code uses the proper address in the |
| 4 | ; prolog and the kernel. The bug occurs when the address computation |
| 5 | ; computes the same value twice. |
| 6 | |
| 7 | ; CHECK: = addasl(r{{[0-9]+}},[[REG0:(r[0-9]+)]],#1) |
| 8 | ; CHECK-NOT: = addasl(r{{[0-9]+}},[[REG0]],#1) |
| 9 | |
| 10 | ; Function Attrs: nounwind |
| 11 | define void @f0(i32 %a0, i16* nocapture %a1) #0 { |
| 12 | b0: |
| 13 | br i1 undef, label %b2, label %b1 |
| 14 | |
| 15 | b1: ; preds = %b0 |
| 16 | unreachable |
| 17 | |
| 18 | b2: ; preds = %b0 |
| 19 | br label %b3 |
| 20 | |
| 21 | b3: ; preds = %b4, %b2 |
| 22 | br i1 undef, label %b4, label %b5 |
| 23 | |
| 24 | b4: ; preds = %b3 |
| 25 | br label %b3 |
| 26 | |
| 27 | b5: ; preds = %b3 |
| 28 | br i1 undef, label %b6, label %b7 |
| 29 | |
| 30 | b6: ; preds = %b5 |
| 31 | unreachable |
| 32 | |
| 33 | b7: ; preds = %b5 |
| 34 | br i1 undef, label %b8, label %b12 |
| 35 | |
| 36 | b8: ; preds = %b7 |
| 37 | br i1 undef, label %b9, label %b11 |
| 38 | |
| 39 | b9: ; preds = %b9, %b8 |
| 40 | br i1 undef, label %b9, label %b10 |
| 41 | |
| 42 | b10: ; preds = %b9 |
| 43 | br i1 undef, label %b12, label %b11 |
| 44 | |
| 45 | b11: ; preds = %b11, %b10, %b8 |
| 46 | %v0 = phi i32 [ %v6, %b11 ], [ undef, %b8 ], [ undef, %b10 ] |
| 47 | %v1 = phi i32 [ %v0, %b11 ], [ %a0, %b8 ], [ undef, %b10 ] |
| 48 | %v2 = add nsw i32 %v1, -2 |
| 49 | %v3 = getelementptr inbounds i16, i16* %a1, i32 %v2 |
| 50 | %v4 = load i16, i16* %v3, align 2, !tbaa !0 |
| 51 | %v5 = getelementptr inbounds i16, i16* %a1, i32 %v0 |
| 52 | store i16 %v4, i16* %v5, align 2, !tbaa !0 |
| 53 | %v6 = add nsw i32 %v0, -1 |
| 54 | %v7 = icmp sgt i32 %v6, 0 |
| 55 | br i1 %v7, label %b11, label %b12 |
| 56 | |
| 57 | b12: ; preds = %b11, %b10, %b7 |
| 58 | ret void |
| 59 | } |
| 60 | |
| 61 | attributes #0 = { nounwind "target-cpu"="hexagonv55" } |
| 62 | |
| 63 | !0 = !{!1, !1, i64 0} |
| 64 | !1 = !{!"short", !2} |
| 65 | !2 = !{!"omnipotent char", !3} |
| 66 | !3 = !{!"Simple C/C++ TBAA"} |