; LLVM IR from ysyesilyurt/ComputerGraphics :: ForwardRenderingPipeline/Helpers.ll (Z13normalizeVec34Vec3)

; 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"

%class.Vec3 = type <{ double, double, double, i32, [4 x i8] }>

declare void @_ZN4Vec3C1Ev(ptr noundef nonnull align 8 dereferenceable(28)) unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef double @_Z15magnitudeOfVec34Vec3(ptr noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z13normalizeVec34Vec3(ptr dead_on_unwind noalias writable sret(%class.Vec3) align 8 %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca double, align 8
  %6 = alloca %class.Vec3, align 8
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  call void @_ZN4Vec3C1Ev(ptr noundef nonnull align 8 dereferenceable(28) %0)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  call void @_ZN4Vec3C1ERKS_(ptr noundef nonnull align 8 dereferenceable(28) %6, ptr noundef nonnull align 8 dereferenceable(28) %1)
  %7 = call noundef double @_Z15magnitudeOfVec34Vec3(ptr noundef %6)
  store double %7, ptr %5, align 8, !tbaa !9
  %8 = getelementptr inbounds %class.Vec3, ptr %1, i32 0, i32 0
  %9 = load double, ptr %8, align 8, !tbaa !11
  %10 = load double, ptr %5, align 8, !tbaa !9
  %11 = fdiv double %9, %10
  %12 = getelementptr inbounds %class.Vec3, ptr %0, i32 0, i32 0
  store double %11, ptr %12, align 8, !tbaa !11
  %13 = getelementptr inbounds %class.Vec3, ptr %1, i32 0, i32 1
  %14 = load double, ptr %13, align 8, !tbaa !14
  %15 = load double, ptr %5, align 8, !tbaa !9
  %16 = fdiv double %14, %15
  %17 = getelementptr inbounds %class.Vec3, ptr %0, i32 0, i32 1
  store double %16, ptr %17, align 8, !tbaa !14
  %18 = getelementptr inbounds %class.Vec3, ptr %1, i32 0, i32 2
  %19 = load double, ptr %18, align 8, !tbaa !15
  %20 = load double, ptr %5, align 8, !tbaa !9
  %21 = fdiv double %19, %20
  %22 = getelementptr inbounds %class.Vec3, ptr %0, i32 0, i32 2
  store double %21, ptr %22, align 8, !tbaa !15
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

declare void @_ZN4Vec3C1ERKS_(ptr noundef nonnull align 8 dereferenceable(28), ptr noundef nonnull align 8 dereferenceable(28)) unnamed_addr #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

attributes #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 = { 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 #2 = { mustprogress 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 #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS4Vec3", !10, i64 0, !10, i64 8, !10, i64 16, !13, i64 24}
!13 = !{!"int", !7, i64 0}
!14 = !{!12, !10, i64 8}
!15 = !{!12, !10, i64 16}


; 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"

%class.Vec3 = type <{ double, double, double, i32, [4 x i8] }>

declare void @_ZN4Vec3C1Ev(ptr noundef nonnull align 8 dereferenceable(28)) unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef double @_Z15magnitudeOfVec34Vec3(ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z13normalizeVec34Vec3(ptr dead_on_unwind noalias nonnull writable sret(%class.Vec3) align 8 %0, ptr noundef %1) local_unnamed_addr #2 {
  %3 = alloca %class.Vec3, align 8
  tail call void @_ZN4Vec3C1Ev(ptr noundef nonnull align 8 dereferenceable(28) %0)
  call void @_ZN4Vec3C1ERKS_(ptr noundef nonnull align 8 dereferenceable(28) %3, ptr noundef nonnull align 8 dereferenceable(28) %1)
  %4 = call noundef double @_Z15magnitudeOfVec34Vec3(ptr noundef nonnull %3)
  %5 = load <2 x double>, ptr %1, align 8, !tbaa !5
  %6 = insertelement <2 x double> poison, double %4, i64 0
  %7 = shufflevector <2 x double> %6, <2 x double> poison, <2 x i32> zeroinitializer
  %8 = fdiv <2 x double> %5, %7
  store <2 x double> %8, ptr %0, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %1, i64 16
  %10 = load double, ptr %9, align 8, !tbaa !9
  %11 = fdiv double %10, %4
  %12 = getelementptr inbounds i8, ptr %0, i64 16
  store double %11, ptr %12, align 8, !tbaa !9
  ret void
}

declare void @_ZN4Vec3C1ERKS_(ptr noundef nonnull align 8 dereferenceable(28), ptr noundef nonnull align 8 dereferenceable(28)) unnamed_addr #0

attributes #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 = { 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 #2 = { mustprogress 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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 16}
!10 = !{!"_ZTS4Vec3", !6, i64 0, !6, i64 8, !6, i64 16, !11, i64 24}
!11 = !{!"int", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass,TailCallElimPass