; LLVM IR from stan-dev/math :: lib/sundials_6.1.1/src/nvector/manyvector (nvector_manyvector)

; 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._generic_N_Vector = type { ptr, ptr, ptr }
%struct._N_VectorContent_ManyVector = type { i64, i64, ptr, i32 }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local void @N_VDiv_ManyVector(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 0, ptr %7, align 8, !tbaa !9
  br label %8

8:                                                ; preds = %41, %3
  %9 = load i64, ptr %7, align 8, !tbaa !9
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = getelementptr inbounds %struct._generic_N_Vector, ptr %10, i32 0, i32 0
  %12 = load ptr, ptr %11, align 8, !tbaa !11
  %13 = getelementptr inbounds %struct._N_VectorContent_ManyVector, ptr %12, i32 0, i32 0
  %14 = load i64, ptr %13, align 8, !tbaa !13
  %15 = icmp slt i64 %9, %14
  br i1 %15, label %16, label %44

16:                                               ; preds = %8
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct._generic_N_Vector, ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !11
  %20 = getelementptr inbounds %struct._N_VectorContent_ManyVector, ptr %19, i32 0, i32 2
  %21 = load ptr, ptr %20, align 8, !tbaa !16
  %22 = load i64, ptr %7, align 8, !tbaa !9
  %23 = getelementptr inbounds ptr, ptr %21, i64 %22
  %24 = load ptr, ptr %23, align 8, !tbaa !5
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct._generic_N_Vector, ptr %25, i32 0, i32 0
  %27 = load ptr, ptr %26, align 8, !tbaa !11
  %28 = getelementptr inbounds %struct._N_VectorContent_ManyVector, ptr %27, i32 0, i32 2
  %29 = load ptr, ptr %28, align 8, !tbaa !16
  %30 = load i64, ptr %7, align 8, !tbaa !9
  %31 = getelementptr inbounds ptr, ptr %29, i64 %30
  %32 = load ptr, ptr %31, align 8, !tbaa !5
  %33 = load ptr, ptr %6, align 8, !tbaa !5
  %34 = getelementptr inbounds %struct._generic_N_Vector, ptr %33, i32 0, i32 0
  %35 = load ptr, ptr %34, align 8, !tbaa !11
  %36 = getelementptr inbounds %struct._N_VectorContent_ManyVector, ptr %35, i32 0, i32 2
  %37 = load ptr, ptr %36, align 8, !tbaa !16
  %38 = load i64, ptr %7, align 8, !tbaa !9
  %39 = getelementptr inbounds ptr, ptr %37, i64 %38
  %40 = load ptr, ptr %39, align 8, !tbaa !5
  call void @N_VDiv(ptr noundef %24, ptr noundef %32, ptr noundef %40)
  br label %41

41:                                               ; preds = %16
  %42 = load i64, ptr %7, align 8, !tbaa !9
  %43 = add nsw i64 %42, 1
  store i64 %43, ptr %7, align 8, !tbaa !9
  br label %8, !llvm.loop !17

44:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

declare void @N_VDiv(ptr noundef, ptr noundef, ptr noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { "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 #3 = { 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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"_generic_N_Vector", !6, i64 0, !6, i64 8, !6, i64 16}
!13 = !{!14, !10, i64 0}
!14 = !{!"_N_VectorContent_ManyVector", !10, i64 0, !10, i64 8, !6, i64 16, !15, i64 24}
!15 = !{!"int", !7, i64 0}
!16 = !{!14, !6, i64 16}
!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: nounwind uwtable
define dso_local void @N_VDiv_ManyVector(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef readonly %2) local_unnamed_addr #0 {
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = load i64, ptr %4, align 8, !tbaa !10
  %6 = icmp sgt i64 %5, 0
  br i1 %6, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3, %.lr.ph
  %7 = phi ptr [ %23, %.lr.ph ], [ %4, %3 ]
  %.08 = phi i64 [ %22, %.lr.ph ], [ 0, %3 ]
  %8 = getelementptr inbounds i8, ptr %7, i64 16
  %9 = load ptr, ptr %8, align 8, !tbaa !14
  %10 = getelementptr inbounds ptr, ptr %9, i64 %.08
  %11 = load ptr, ptr %10, align 8, !tbaa !15
  %12 = load ptr, ptr %1, align 8, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %12, i64 16
  %14 = load ptr, ptr %13, align 8, !tbaa !14
  %15 = getelementptr inbounds ptr, ptr %14, i64 %.08
  %16 = load ptr, ptr %15, align 8, !tbaa !15
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = getelementptr inbounds i8, ptr %17, i64 16
  %19 = load ptr, ptr %18, align 8, !tbaa !14
  %20 = getelementptr inbounds ptr, ptr %19, i64 %.08
  %21 = load ptr, ptr %20, align 8, !tbaa !15
  tail call void @N_VDiv(ptr noundef %11, ptr noundef %16, ptr noundef %21) #2
  %22 = add nuw nsw i64 %.08, 1
  %23 = load ptr, ptr %0, align 8, !tbaa !5
  %24 = load i64, ptr %23, align 8, !tbaa !10
  %25 = icmp slt i64 %22, %24
  br i1 %25, label %.lr.ph, label %._crit_edge, !llvm.loop !16

._crit_edge:                                      ; preds = %.lr.ph, %3
  ret void
}

declare void @N_VDiv(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

attributes #0 = { 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 = { "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 #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 = !{!"_generic_N_Vector", !7, i64 0, !7, i64 8, !7, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!11, !12, i64 0}
!11 = !{!"_N_VectorContent_ManyVector", !12, i64 0, !12, i64 8, !7, i64 16, !13, i64 24}
!12 = !{!"long", !8, i64 0}
!13 = !{!"int", !8, i64 0}
!14 = !{!11, !7, i64 16}
!15 = !{!7, !7, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


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