| ; RUN: llc -march=hexagon -enable-pipeliner -pipeliner-max-stages=2 < %s | FileCheck %s |
| |
| ; Check that the pipelined code uses the proper address in the |
| ; prolog and the kernel. The bug occurs when the address computation |
| ; computes the same value twice. |
| |
| ; CHECK: = addasl(r{{[0-9]+}},[[REG0:(r[0-9]+)]],#1) |
| ; CHECK-NOT: = addasl(r{{[0-9]+}},[[REG0]],#1) |
| |
| ; Function Attrs: nounwind |
| define void @f0(i32 %a0, i16* nocapture %a1) #0 { |
| b0: |
| br i1 undef, label %b2, label %b1 |
| |
| b1: ; preds = %b0 |
| unreachable |
| |
| b2: ; preds = %b0 |
| br label %b3 |
| |
| b3: ; preds = %b4, %b2 |
| br i1 undef, label %b4, label %b5 |
| |
| b4: ; preds = %b3 |
| br label %b3 |
| |
| b5: ; preds = %b3 |
| br i1 undef, label %b6, label %b7 |
| |
| b6: ; preds = %b5 |
| unreachable |
| |
| b7: ; preds = %b5 |
| br i1 undef, label %b8, label %b12 |
| |
| b8: ; preds = %b7 |
| br i1 undef, label %b9, label %b11 |
| |
| b9: ; preds = %b9, %b8 |
| br i1 undef, label %b9, label %b10 |
| |
| b10: ; preds = %b9 |
| br i1 undef, label %b12, label %b11 |
| |
| b11: ; preds = %b11, %b10, %b8 |
| %v0 = phi i32 [ %v6, %b11 ], [ undef, %b8 ], [ undef, %b10 ] |
| %v1 = phi i32 [ %v0, %b11 ], [ %a0, %b8 ], [ undef, %b10 ] |
| %v2 = add nsw i32 %v1, -2 |
| %v3 = getelementptr inbounds i16, i16* %a1, i32 %v2 |
| %v4 = load i16, i16* %v3, align 2, !tbaa !0 |
| %v5 = getelementptr inbounds i16, i16* %a1, i32 %v0 |
| store i16 %v4, i16* %v5, align 2, !tbaa !0 |
| %v6 = add nsw i32 %v0, -1 |
| %v7 = icmp sgt i32 %v6, 0 |
| br i1 %v7, label %b11, label %b12 |
| |
| b12: ; preds = %b11, %b10, %b7 |
| ret void |
| } |
| |
| attributes #0 = { nounwind "target-cpu"="hexagonv55" } |
| |
| !0 = !{!1, !1, i64 0} |
| !1 = !{!"short", !2} |
| !2 = !{!"omnipotent char", !3} |
| !3 = !{!"Simple C/C++ TBAA"} |
