; LLVM IR from sp-nitech/SPTK :: third_party/SWIPE/vector.ll (ZN4sptk5swipe4iv2vENS0_9intvectorE)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"struct.sptk::swipe::vector" = type { i32, ptr }
%"struct.sptk::swipe::intvector" = type { i32, ptr }

; Function Attrs: mustprogress nounwind uwtable
declare dso_local { i32, ptr } @_ZN4sptk5swipe5makevEi(i32 noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local { i32, ptr } @_ZN4sptk5swipe4iv2vENS0_9intvectorE(i32 %0, ptr %1) #0 {
  %3 = alloca %"struct.sptk::swipe::vector", align 8
  %4 = alloca %"struct.sptk::swipe::intvector", align 8
  %5 = alloca i32, align 4
  %6 = getelementptr inbounds { i32, ptr }, ptr %4, i32 0, i32 0
  store i32 %0, ptr %6, align 8
  %7 = getelementptr inbounds { i32, ptr }, ptr %4, i32 0, i32 1
  store ptr %1, ptr %7, align 8
  %8 = getelementptr inbounds %"struct.sptk::swipe::intvector", ptr %4, i32 0, i32 0
  %9 = load i32, ptr %8, align 8, !tbaa !5
  %10 = call { i32, ptr } @_ZN4sptk5swipe5makevEi(i32 noundef %9)
  %11 = getelementptr inbounds { i32, ptr }, ptr %3, i32 0, i32 0
  %12 = extractvalue { i32, ptr } %10, 0
  store i32 %12, ptr %11, align 8
  %13 = getelementptr inbounds { i32, ptr }, ptr %3, i32 0, i32 1
  %14 = extractvalue { i32, ptr } %10, 1
  store ptr %14, ptr %13, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #2
  store i32 0, ptr %5, align 4, !tbaa !11
  br label %15

15:                                               ; preds = %33, %2
  %16 = load i32, ptr %5, align 4, !tbaa !11
  %17 = getelementptr inbounds %"struct.sptk::swipe::intvector", ptr %4, i32 0, i32 0
  %18 = load i32, ptr %17, align 8, !tbaa !5
  %19 = icmp slt i32 %16, %18
  br i1 %19, label %20, label %36

20:                                               ; preds = %15
  %21 = getelementptr inbounds %"struct.sptk::swipe::intvector", ptr %4, i32 0, i32 1
  %22 = load ptr, ptr %21, align 8, !tbaa !12
  %23 = load i32, ptr %5, align 4, !tbaa !11
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds i32, ptr %22, i64 %24
  %26 = load i32, ptr %25, align 4, !tbaa !11
  %27 = sitofp i32 %26 to double
  %28 = getelementptr inbounds %"struct.sptk::swipe::vector", ptr %3, i32 0, i32 1
  %29 = load ptr, ptr %28, align 8, !tbaa !13
  %30 = load i32, ptr %5, align 4, !tbaa !11
  %31 = sext i32 %30 to i64
  %32 = getelementptr inbounds double, ptr %29, i64 %31
  store double %27, ptr %32, align 8, !tbaa !15
  br label %33

33:                                               ; preds = %20
  %34 = load i32, ptr %5, align 4, !tbaa !11
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %5, align 4, !tbaa !11
  br label %15, !llvm.loop !17

36:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #2
  %37 = load { i32, ptr }, ptr %3, align 8
  ret { i32, ptr } %37
}

attributes #0 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !7, i64 0}
!6 = !{!"_ZTSN4sptk5swipe9intvectorE", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!6, !10, i64 8}
!13 = !{!14, !10, i64 8}
!14 = !{!"_ZTSN4sptk5swipe6vectorE", !7, i64 0, !10, i64 8}
!15 = !{!16, !16, i64 0}
!16 = !{!"double", !8, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: mustprogress nounwind uwtable
declare dso_local { i32, ptr } @_ZN4sptk5swipe5makevEi(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local { i32, ptr } @_ZN4sptk5swipe4iv2vENS0_9intvectorE(i32 %0, ptr nocapture readonly %1) local_unnamed_addr #0 {
  %3 = tail call { i32, ptr } @_ZN4sptk5swipe5makevEi(i32 noundef %0)
  %4 = extractvalue { i32, ptr } %3, 1
  %5 = icmp sgt i32 %0, 0
  br i1 %5, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %2
  %wide.trip.count = zext nneg i32 %0 to i64
  %min.iters.check = icmp ult i32 %0, 4
  br i1 %min.iters.check, label %.lr.ph.preheader9, label %vector.ph

vector.ph:                                        ; preds = %.lr.ph.preheader
  %n.vec = and i64 %wide.trip.count, 2147483644
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %6 = getelementptr inbounds i32, ptr %1, i64 %index
  %7 = getelementptr inbounds i8, ptr %6, i64 8
  %wide.load = load <2 x i32>, ptr %6, align 4, !tbaa !5
  %wide.load8 = load <2 x i32>, ptr %7, align 4, !tbaa !5
  %8 = sitofp <2 x i32> %wide.load to <2 x double>
  %9 = sitofp <2 x i32> %wide.load8 to <2 x double>
  %10 = getelementptr inbounds double, ptr %4, i64 %index
  %11 = getelementptr inbounds i8, ptr %10, i64 16
  store <2 x double> %8, ptr %10, align 8, !tbaa !9
  store <2 x double> %9, ptr %11, align 8, !tbaa !9
  %index.next = add nuw i64 %index, 4
  %12 = icmp eq i64 %index.next, %n.vec
  br i1 %12, label %middle.block, label %vector.body, !llvm.loop !11

middle.block:                                     ; preds = %vector.body
  %cmp.n = icmp eq i64 %n.vec, %wide.trip.count
  br i1 %cmp.n, label %._crit_edge, label %.lr.ph.preheader9

.lr.ph.preheader9:                                ; preds = %middle.block, %.lr.ph.preheader
  %indvars.iv.ph = phi i64 [ 0, %.lr.ph.preheader ], [ %n.vec, %middle.block ]
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader9, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ %indvars.iv.ph, %.lr.ph.preheader9 ]
  %13 = getelementptr inbounds i32, ptr %1, i64 %indvars.iv
  %14 = load i32, ptr %13, align 4, !tbaa !5
  %15 = sitofp i32 %14 to double
  %16 = getelementptr inbounds double, ptr %4, i64 %indvars.iv
  store double %15, ptr %16, align 8, !tbaa !9
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !15

._crit_edge:                                      ; preds = %.lr.ph, %middle.block, %2
  ret { i32, ptr } %3
}

attributes #0 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !7, i64 0}
!11 = distinct !{!11, !12, !13, !14}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!"llvm.loop.isvectorized", i32 1}
!14 = !{!"llvm.loop.unroll.runtime.disable"}
!15 = distinct !{!15, !12, !14, !13}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopLoadEliminationPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,LoopVectorizePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass