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111 lines
3.9 KiB
LLVM
111 lines
3.9 KiB
LLVM
; RUN: llc -march=hexagon -enable-pipeliner -hexagon-expand-condsets=0 < %s
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; REQUIRES: asserts
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; Disable expand-condsets because it will assert on undefined registers.
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; Another test that the pipeliner doesn't ICE when reusing a
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; PHI in the epilog code.
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@g0 = external global [18 x i16], align 8
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; Function Attrs: nounwind readnone
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declare i32 @llvm.hexagon.S2.asl.r.r.sat(i32, i32) #0
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; Function Attrs: nounwind readnone
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declare i32 @llvm.hexagon.A2.sxth(i32) #0
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; Function Attrs: nounwind
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define void @f0() #1 {
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b0:
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%v0 = alloca [166 x i32], align 8
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br label %b1
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b1: ; preds = %b1, %b0
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%v1 = icmp eq i16 undef, 0
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br i1 %v1, label %b2, label %b1
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b2: ; preds = %b1
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br i1 undef, label %b3, label %b4
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b3: ; preds = %b3, %b2
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%v2 = add i32 0, 2
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br i1 undef, label %b3, label %b4
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b4: ; preds = %b3, %b2
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%v3 = phi i32* [ undef, %b2 ], [ undef, %b3 ]
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%v4 = phi i32 [ 0, %b2 ], [ %v2, %b3 ]
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%v5 = getelementptr [18 x i16], [18 x i16]* @g0, i32 0, i32 undef
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br label %b5
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b5: ; preds = %b5, %b4
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%v6 = phi i16 [ 0, %b4 ], [ %v17, %b5 ]
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%v7 = phi i16 [ undef, %b4 ], [ %v6, %b5 ]
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%v8 = phi i32 [ %v4, %b4 ], [ %v35, %b5 ]
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%v9 = phi i32* [ %v3, %b4 ], [ undef, %b5 ]
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%v10 = phi i16* [ undef, %b4 ], [ %v12, %b5 ]
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%v11 = add i32 %v8, 0
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%v12 = getelementptr inbounds i16, i16* %v10, i32 1
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%v13 = sext i16 %v7 to i32
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%v14 = call i32 @llvm.hexagon.M2.mpy.acc.sat.ll.s1(i32 0, i32 %v13, i32 undef)
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%v15 = getelementptr inbounds i16, i16* %v10, i32 2
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%v16 = call i32 @llvm.hexagon.M2.mpy.acc.sat.ll.s1(i32 %v14, i32 undef, i32 undef)
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%v17 = load i16, i16* %v15, align 2, !tbaa !0
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%v18 = sext i16 %v17 to i32
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%v19 = call i32 @llvm.hexagon.M2.mpy.acc.sat.ll.s1(i32 %v16, i32 %v18, i32 undef)
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%v20 = call i32 @llvm.hexagon.S2.asr.r.r.sat(i32 %v19, i32 undef)
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%v21 = getelementptr [166 x i32], [166 x i32]* %v0, i32 0, i32 %v11
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%v22 = load i32, i32* %v21, align 4
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%v23 = call i64 @llvm.hexagon.M2.dpmpyss.s0(i32 %v22, i32 undef)
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%v24 = call i64 @llvm.hexagon.S2.asr.i.p(i64 %v23, i32 15)
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%v25 = call i32 @llvm.hexagon.A2.sat(i64 %v24)
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%v26 = call i32 @llvm.hexagon.A2.subsat(i32 %v20, i32 %v25)
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%v27 = load i16, i16* %v5, align 4
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%v28 = sext i16 %v27 to i32
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%v29 = call i32 @llvm.hexagon.A2.sxth(i32 %v28)
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%v30 = call i64 @llvm.hexagon.M2.dpmpyss.s0(i32 undef, i32 %v29)
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%v31 = call i64 @llvm.hexagon.S2.asr.i.p(i64 %v30, i32 15)
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%v32 = call i32 @llvm.hexagon.A2.sat(i64 %v31)
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%v33 = call i32 @llvm.hexagon.A2.subsat(i32 %v26, i32 %v32)
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%v34 = call i32 @llvm.hexagon.S2.asl.r.r.sat(i32 %v33, i32 undef)
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store i32 %v34, i32* %v9, align 4, !tbaa !4
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%v35 = add i32 %v8, 1
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%v36 = icmp eq i32 %v35, 164
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br i1 %v36, label %b6, label %b5
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b6: ; preds = %b5
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call void @llvm.trap()
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unreachable
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}
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; Function Attrs: nounwind readnone
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declare i32 @llvm.hexagon.M2.mpy.acc.sat.ll.s1(i32, i32, i32) #0
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; Function Attrs: nounwind readnone
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declare i32 @llvm.hexagon.S2.asr.r.r.sat(i32, i32) #0
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; Function Attrs: nounwind readnone
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declare i32 @llvm.hexagon.A2.sat(i64) #0
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; Function Attrs: nounwind readnone
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declare i64 @llvm.hexagon.S2.asr.i.p(i64, i32) #0
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; Function Attrs: nounwind readnone
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declare i64 @llvm.hexagon.M2.dpmpyss.s0(i32, i32) #0
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; Function Attrs: nounwind readnone
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declare i32 @llvm.hexagon.A2.subsat(i32, i32) #0
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; Function Attrs: noreturn nounwind
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declare void @llvm.trap() #2
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attributes #0 = { nounwind readnone }
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attributes #1 = { nounwind "target-cpu"="hexagonv55" }
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attributes #2 = { noreturn nounwind }
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!0 = !{!1, !1, i64 0}
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!1 = !{!"short", !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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!4 = !{!5, !5, i64 0}
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!5 = !{!"long", !2, i64 0}
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