; 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 double @N_VL1NormLocal_ManyVector(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i64, align 8
  %4 = alloca double, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store double 0.000000e+00, ptr %4, align 8, !tbaa !9
  store i64 0, ptr %3, align 8, !tbaa !11
  br label %5

5:                                                ; preds = %25, %1
  %6 = load i64, ptr %3, align 8, !tbaa !11
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct._generic_N_Vector, ptr %7, i32 0, i32 0
  %9 = load ptr, ptr %8, align 8, !tbaa !13
  %10 = getelementptr inbounds %struct._N_VectorContent_ManyVector, ptr %9, i32 0, i32 0
  %11 = load i64, ptr %10, align 8, !tbaa !15
  %12 = icmp slt i64 %6, %11
  br i1 %12, label %13, label %28

13:                                               ; preds = %5
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct._generic_N_Vector, ptr %14, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8, !tbaa !13
  %17 = getelementptr inbounds %struct._N_VectorContent_ManyVector, ptr %16, i32 0, i32 2
  %18 = load ptr, ptr %17, align 8, !tbaa !18
  %19 = load i64, ptr %3, align 8, !tbaa !11
  %20 = getelementptr inbounds ptr, ptr %18, i64 %19
  %21 = load ptr, ptr %20, align 8, !tbaa !5
  %22 = call double @N_VL1Norm(ptr noundef %21)
  %23 = load double, ptr %4, align 8, !tbaa !9
  %24 = fadd double %23, %22
  store double %24, ptr %4, align 8, !tbaa !9
  br label %25

25:                                               ; preds = %13
  %26 = load i64, ptr %3, align 8, !tbaa !11
  %27 = add nsw i64 %26, 1
  store i64 %27, ptr %3, align 8, !tbaa !11
  br label %5, !llvm.loop !19

28:                                               ; preds = %5
  %29 = load double, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret double %29
}

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

declare double @N_VL1Norm(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 = !{!"double", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!14, !6, i64 0}
!14 = !{!"_generic_N_Vector", !6, i64 0, !6, i64 8, !6, i64 16}
!15 = !{!16, !12, i64 0}
!16 = !{!"_N_VectorContent_ManyVector", !12, i64 0, !12, i64 8, !6, i64 16, !17, i64 24}
!17 = !{!"int", !7, i64 0}
!18 = !{!16, !6, i64 16}
!19 = distinct !{!19, !20}
!20 = !{!"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 double @N_VL1NormLocal_ManyVector(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %3 = load i64, ptr %2, align 8, !tbaa !10
  %4 = icmp sgt i64 %3, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %1, %.lr.ph
  %5 = phi ptr [ %13, %.lr.ph ], [ %2, %1 ]
  %.08 = phi double [ %11, %.lr.ph ], [ 0.000000e+00, %1 ]
  %.067 = phi i64 [ %12, %.lr.ph ], [ 0, %1 ]
  %6 = getelementptr inbounds i8, ptr %5, i64 16
  %7 = load ptr, ptr %6, align 8, !tbaa !14
  %8 = getelementptr inbounds ptr, ptr %7, i64 %.067
  %9 = load ptr, ptr %8, align 8, !tbaa !15
  %10 = tail call double @N_VL1Norm(ptr noundef %9) #2
  %11 = fadd double %.08, %10
  %12 = add nuw nsw i64 %.067, 1
  %13 = load ptr, ptr %0, align 8, !tbaa !5
  %14 = load i64, ptr %13, align 8, !tbaa !10
  %15 = icmp slt i64 %12, %14
  br i1 %15, label %.lr.ph, label %._crit_edge, !llvm.loop !16

._crit_edge:                                      ; preds = %.lr.ph, %1
  %.0.lcssa = phi double [ 0.000000e+00, %1 ], [ %11, %.lr.ph ]
  ret double %.0.lcssa
}

declare double @N_VL1Norm(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,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass