reg-scavengebug.ll
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; RUN: llc -O3 -march=hexagon < %s | FileCheck %s
; CHECK: v{{[0-9]+}}.w = vadd
target triple = "hexagon"
; Function Attrs: nounwind readnone
declare <16 x i32> @llvm.hexagon.V6.hi(<32 x i32>) #0
; Function Attrs: nounwind readnone
declare <16 x i32> @llvm.hexagon.V6.vshuffb(<16 x i32>) #0
; Function Attrs: nounwind readnone
declare <32 x i32> @llvm.hexagon.V6.vmpyubv(<16 x i32>, <16 x i32>) #0
; Function Attrs: nounwind readnone
declare <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32>, <16 x i32>, i32) #0
; Function Attrs: nounwind readnone
declare <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32>, <16 x i32>) #0
; Function Attrs: nounwind
define void @f0(i16* noalias nocapture %a0, i32* noalias nocapture readonly %a1, i32 %a2, i8* noalias nocapture readonly %a3, i1 %cond) #1 {
b0:
%v0 = add nsw i32 %a2, 63
%v1 = ashr i32 %v0, 6
%v2 = bitcast i16* %a0 to <16 x i32>*
%v3 = bitcast i8* %a3 to <16 x i32>*
%v4 = getelementptr inbounds i32, i32* %a1, i32 32
%v5 = bitcast i32* %v4 to <16 x i32>*
%v6 = load <16 x i32>, <16 x i32>* %v5, align 64, !tbaa !0
%v7 = tail call <16 x i32> @llvm.hexagon.V6.lvsplatw(i32 32768)
%v8 = tail call <16 x i32> @llvm.hexagon.V6.lvsplatw(i32 2147450879)
%v9 = icmp sgt i32 %v1, 0
br i1 %v9, label %b1, label %b4
b1: ; preds = %b0
%v10 = bitcast i32* %a1 to <16 x i32>*
%v11 = load <16 x i32>, <16 x i32>* %v10, align 64, !tbaa !0
%v12 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v6, <16 x i32> %v11, i32 2)
%v13 = getelementptr inbounds i32, i32* %a1, i32 48
%v14 = tail call <16 x i32> @llvm.hexagon.V6.vaddh(<16 x i32> %v12, <16 x i32> undef)
%v15 = bitcast i32* %v13 to <16 x i32>*
br i1 %cond, label %b2, label %b3
b2: ; preds = %b1
%v16 = getelementptr inbounds <16 x i32>, <16 x i32>* %v15, i32 1
%v17 = load <16 x i32>, <16 x i32>* %v16, align 64, !tbaa !0
%v18 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v17, <16 x i32> %v6, i32 4)
%v19 = load <16 x i32>, <16 x i32>* %v15, align 64, !tbaa !0
%v20 = getelementptr inbounds <16 x i32>, <16 x i32>* %v15, i32 2
%v21 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v18, <16 x i32> %v19)
%v22 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v21, <16 x i32> %v14, i32 4)
%v23 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v21, <16 x i32> %v14, i32 8)
%v24 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v21, <16 x i32> %v14, i32 12)
%v25 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v14, <16 x i32> %v22)
%v26 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v25, <16 x i32> %v23)
%v27 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v26, <16 x i32> %v24)
%v28 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v19, <16 x i32> undef, i32 16)
%v29 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v27, <16 x i32> %v11)
%v30 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v27, <16 x i32> %v28)
%v31 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh.acc(<16 x i32> %v7, <16 x i32> %v29, i32 53019433)
%v32 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh.acc(<16 x i32> %v7, <16 x i32> %v30, i32 53019433)
%v33 = load <16 x i32>, <16 x i32>* %v3, align 64, !tbaa !0
%v34 = tail call <16 x i32> @llvm.hexagon.V6.vshuffb(<16 x i32> %v33)
%v35 = tail call <32 x i32> @llvm.hexagon.V6.vmpyubv(<16 x i32> %v34, <16 x i32> %v34)
%v36 = tail call <16 x i32> @llvm.hexagon.V6.vshufoh(<16 x i32> %v32, <16 x i32> %v31)
store <16 x i32> %v36, <16 x i32>* %v2, align 64, !tbaa !0
%v37 = getelementptr inbounds <16 x i32>, <16 x i32>* %v15, i32 3
%v38 = load <16 x i32>, <16 x i32>* %v37, align 64, !tbaa !0
%v39 = load <16 x i32>, <16 x i32>* %v20, align 64, !tbaa !0
%v40 = getelementptr inbounds <16 x i32>, <16 x i32>* %v15, i32 4
%v41 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> undef, <16 x i32> %v39)
%v42 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v41, <16 x i32> %v21, i32 4)
%v43 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v41, <16 x i32> %v21, i32 8)
%v44 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v41, <16 x i32> %v21, i32 12)
%v45 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v21, <16 x i32> %v42)
%v46 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v45, <16 x i32> %v43)
%v47 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v46, <16 x i32> %v44)
%v48 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v47, <16 x i32> %v6)
%v49 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v47, <16 x i32> undef)
%v50 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh.acc(<16 x i32> %v7, <16 x i32> %v48, i32 53019433)
%v51 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh.acc(<16 x i32> %v7, <16 x i32> %v49, i32 53019433)
%v52 = tail call <16 x i32> @llvm.hexagon.V6.vshufoh(<16 x i32> %v51, <16 x i32> %v50)
%v53 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v52, <16 x i32> undef, i32 56)
%v54 = tail call <16 x i32> @llvm.hexagon.V6.hi(<32 x i32> %v35)
%v55 = tail call <16 x i32> @llvm.hexagon.V6.vsubuhsat(<16 x i32> %v53, <16 x i32> %v54)
%v56 = tail call <16 x i32> @llvm.hexagon.V6.vminuh(<16 x i32> %v55, <16 x i32> %v8)
%v57 = getelementptr inbounds <16 x i32>, <16 x i32>* %v2, i32 undef
store <16 x i32> %v56, <16 x i32>* %v57, align 64, !tbaa !0
%v58 = getelementptr <16 x i32>, <16 x i32>* %v2, i32 2
%v59 = getelementptr inbounds <16 x i32>, <16 x i32>* %v15, i32 5
%v60 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> zeroinitializer, <16 x i32> %v38, i32 4)
%v61 = load <16 x i32>, <16 x i32>* %v40, align 64, !tbaa !0
%v62 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v60, <16 x i32> %v61)
%v63 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v62, <16 x i32> %v41, i32 4)
%v64 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v62, <16 x i32> %v41, i32 8)
%v65 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v62, <16 x i32> %v41, i32 12)
%v66 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v41, <16 x i32> %v63)
%v67 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v66, <16 x i32> %v64)
%v68 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v67, <16 x i32> %v65)
%v69 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v61, <16 x i32> %v39, i32 16)
%v70 = getelementptr inbounds <16 x i32>, <16 x i32>* %v15, i32 1
%v71 = load <16 x i32>, <16 x i32>* %v70, align 64, !tbaa !0
%v72 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v68, <16 x i32> %v71)
%v73 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v68, <16 x i32> %v69)
%v74 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh.acc(<16 x i32> %v7, <16 x i32> %v72, i32 53019433)
%v75 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh.acc(<16 x i32> %v7, <16 x i32> %v73, i32 53019433)
%v76 = tail call <16 x i32> @llvm.hexagon.V6.vshufoh(<16 x i32> %v75, <16 x i32> %v74)
store <16 x i32> %v76, <16 x i32>* %v58, align 64, !tbaa !0
%v77 = getelementptr inbounds <16 x i32>, <16 x i32>* %v15, i32 7
%v78 = load <16 x i32>, <16 x i32>* %v77, align 64, !tbaa !0
%v79 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> undef, <16 x i32> undef)
%v80 = getelementptr <16 x i32>, <16 x i32>* %v2, i32 4
%v81 = getelementptr inbounds <16 x i32>, <16 x i32>* %v15, i32 9
%v82 = load <16 x i32>, <16 x i32>* %v81, align 64, !tbaa !0
%v83 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v82, <16 x i32> %v78, i32 4)
%v84 = getelementptr inbounds <16 x i32>, <16 x i32>* %v15, i32 10
%v85 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v83, <16 x i32> undef)
%v86 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v85, <16 x i32> %v79, i32 4)
%v87 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v85, <16 x i32> %v79, i32 8)
%v88 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v85, <16 x i32> %v79, i32 12)
%v89 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v79, <16 x i32> %v86)
%v90 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v89, <16 x i32> %v87)
%v91 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v90, <16 x i32> %v88)
%v92 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> undef, <16 x i32> undef, i32 16)
%v93 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v91, <16 x i32> zeroinitializer)
%v94 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v91, <16 x i32> %v92)
%v95 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh.acc(<16 x i32> %v7, <16 x i32> %v93, i32 53019433)
%v96 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh.acc(<16 x i32> %v7, <16 x i32> %v94, i32 53019433)
%v97 = tail call <32 x i32> @llvm.hexagon.V6.vmpyubv(<16 x i32> undef, <16 x i32> undef)
%v98 = tail call <16 x i32> @llvm.hexagon.V6.vshufoh(<16 x i32> %v96, <16 x i32> %v95)
store <16 x i32> %v98, <16 x i32>* %v80, align 64, !tbaa !0
%v99 = getelementptr inbounds <16 x i32>, <16 x i32>* %v15, i32 11
%v100 = load <16 x i32>, <16 x i32>* %v99, align 64, !tbaa !0
%v101 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v100, <16 x i32> %v82, i32 4)
%v102 = load <16 x i32>, <16 x i32>* %v84, align 64, !tbaa !0
%v103 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v101, <16 x i32> %v102)
%v104 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v103, <16 x i32> %v85, i32 4)
%v105 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v103, <16 x i32> %v85, i32 8)
%v106 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v85, <16 x i32> %v104)
%v107 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v106, <16 x i32> %v105)
%v108 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v107, <16 x i32> undef)
%v109 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v102, <16 x i32> undef, i32 16)
%v110 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v108, <16 x i32> %v78)
%v111 = tail call <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32> %v108, <16 x i32> %v109)
%v112 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh.acc(<16 x i32> %v7, <16 x i32> %v110, i32 53019433)
%v113 = tail call <16 x i32> @llvm.hexagon.V6.vmpyiwh.acc(<16 x i32> %v7, <16 x i32> %v111, i32 53019433)
%v114 = tail call <16 x i32> @llvm.hexagon.V6.vshufoh(<16 x i32> %v113, <16 x i32> %v112)
%v115 = tail call <16 x i32> @llvm.hexagon.V6.valignb(<16 x i32> %v114, <16 x i32> undef, i32 56)
%v116 = tail call <16 x i32> @llvm.hexagon.V6.hi(<32 x i32> %v97)
%v117 = tail call <16 x i32> @llvm.hexagon.V6.vsubuhsat(<16 x i32> %v115, <16 x i32> %v116)
%v118 = tail call <16 x i32> @llvm.hexagon.V6.vminuh(<16 x i32> %v117, <16 x i32> %v8)
%v119 = getelementptr inbounds <16 x i32>, <16 x i32>* %v2, i32 undef
store <16 x i32> %v118, <16 x i32>* %v119, align 64, !tbaa !0
%v120 = getelementptr <16 x i32>, <16 x i32>* %v2, i32 6
%v121 = tail call <16 x i32> @llvm.hexagon.V6.vshufoh(<16 x i32> undef, <16 x i32> undef)
store <16 x i32> %v121, <16 x i32>* %v120, align 64, !tbaa !0
unreachable
b3: ; preds = %b1
unreachable
b4: ; preds = %b0
ret void
}
; Function Attrs: nounwind readnone
declare <16 x i32> @llvm.hexagon.V6.lvsplatw(i32) #0
; Function Attrs: nounwind readnone
declare <16 x i32> @llvm.hexagon.V6.vaddw(<16 x i32>, <16 x i32>) #0
; Function Attrs: nounwind readnone
declare <16 x i32> @llvm.hexagon.V6.vmpyiwh.acc(<16 x i32>, <16 x i32>, i32) #0
; Function Attrs: nounwind readnone
declare <16 x i32> @llvm.hexagon.V6.vshufoh(<16 x i32>, <16 x i32>) #0
; Function Attrs: nounwind readnone
declare <16 x i32> @llvm.hexagon.V6.vsubuhsat(<16 x i32>, <16 x i32>) #0
; Function Attrs: nounwind readnone
declare <16 x i32> @llvm.hexagon.V6.vminuh(<16 x i32>, <16 x i32>) #0
attributes #0 = { nounwind readnone }
attributes #1 = { nounwind "target-cpu"="hexagonv60" "target-features"="+hvxv60,+hvx-length64b" }
!0 = !{!1, !1, i64 0}
!1 = !{!"omnipotent char", !2, i64 0}
!2 = !{!"Simple C/C++ TBAA"}