89 lines
3.3 KiB
LLVM
89 lines
3.3 KiB
LLVM
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; RUN: llc -O2 -march=hexagon -fp-contract=fast -pipeliner-prune-loop-carried=false < %s | FileCheck %s
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; Test that there is 1 packet between the FP result and its use.
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; CHECK: loop0([[LOOP0:.LBB[0-9_]+]],
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; CHECK: [[LOOP0]]
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; CHECK: [[REG0:(r[0-9]+)]] += sfmpy(r{{[0-9]+}},r{{[0-9]+}})
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; CHECK: }
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; CHECK: }
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; CHECK: r{{[0-9]+}} = {{.*}}[[REG0]]
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; Function Attrs: nounwind readnone
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define void @f0(i32 %a0, i32 %a1) #0 {
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b0:
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%v0 = alloca [1000 x float], align 64
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%v1 = alloca [1000 x float], align 64
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%v2 = alloca [1000 x float], align 64
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%v3 = alloca [1000 x float], align 64
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%v4 = bitcast [1000 x float]* %v0 to i8*
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call void @llvm.lifetime.start.p0i8(i64 4000, i8* %v4) #2
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%v5 = bitcast [1000 x float]* %v1 to i8*
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call void @llvm.lifetime.start.p0i8(i64 4000, i8* %v5) #2
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%v6 = bitcast [1000 x float]* %v2 to i8*
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call void @llvm.lifetime.start.p0i8(i64 4000, i8* %v6) #2
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%v7 = bitcast [1000 x float]* %v3 to i8*
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call void @llvm.lifetime.start.p0i8(i64 4000, i8* %v7) #2
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%v8 = icmp sgt i32 %a1, 0
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%v9 = add i32 %a1, -1
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%v10 = getelementptr [1000 x float], [1000 x float]* %v3, i32 0, i32 0
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br label %b1
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b1: ; preds = %b3, %b0
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%v11 = phi i32 [ 0, %b0 ], [ %v34, %b3 ]
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br i1 %v8, label %b2, label %b3
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b2: ; preds = %b2, %b1
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%v12 = phi float* [ %v33, %b2 ], [ %v10, %b1 ]
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%v13 = phi i32 [ %v31, %b2 ], [ 0, %b1 ]
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%v14 = mul nsw i32 %v13, %a1
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%v15 = add nsw i32 %v14, %v11
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%v16 = getelementptr inbounds [1000 x float], [1000 x float]* %v1, i32 0, i32 %v15
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%v17 = load float, float* %v16, align 4, !tbaa !0
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%v18 = fmul float %v17, %v17
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%v19 = mul nsw i32 %v13, 25
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%v20 = add nsw i32 %v19, %v11
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%v21 = getelementptr inbounds [1000 x float], [1000 x float]* %v2, i32 0, i32 %v20
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%v22 = load float, float* %v21, align 4, !tbaa !0
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%v23 = fmul float %v22, %v22
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%v24 = fadd float %v18, %v23
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%v25 = load float, float* %v12, align 4, !tbaa !0
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%v26 = fmul float %v25, %v25
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%v27 = fadd float %v24, %v26
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%v28 = getelementptr inbounds [1000 x float], [1000 x float]* %v0, i32 0, i32 %v20
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%v29 = load float, float* %v28, align 4, !tbaa !0
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%v30 = fadd float %v29, %v27
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store float %v30, float* %v28, align 4, !tbaa !0
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%v31 = add nuw nsw i32 %v13, 1
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%v32 = icmp eq i32 %v13, %v9
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%v33 = getelementptr float, float* %v12, i32 1
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br i1 %v32, label %b3, label %b2
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b3: ; preds = %b2, %b1
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%v34 = add nuw nsw i32 %v11, 1
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%v35 = icmp eq i32 %v34, 25
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br i1 %v35, label %b4, label %b1
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b4: ; preds = %b3
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call void @llvm.lifetime.end.p0i8(i64 4000, i8* %v7) #2
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call void @llvm.lifetime.end.p0i8(i64 4000, i8* %v6) #2
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call void @llvm.lifetime.end.p0i8(i64 4000, i8* %v5) #2
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call void @llvm.lifetime.end.p0i8(i64 4000, i8* %v4) #2
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ret void
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}
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1
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; Function Attrs: argmemonly nounwind
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
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attributes #0 = { nounwind readnone "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length64b" }
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attributes #1 = { argmemonly nounwind }
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attributes #2 = { nounwind }
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!0 = !{!1, !1, i64 0}
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!1 = !{!"float", !2, i64 0}
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!2 = !{!"omnipotent char", !3, i64 0}
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!3 = !{!"Simple C/C++ TBAA"}
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