; LLVM IR from johnb003/PlasmaSim :: adMath/src/adVector.ll (ZN2ad4Vec410Normalize3Ev)

; 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.ad::Vec4" = type { double, double, double, double }

; Function Attrs: mustprogress uwtable
declare dso_local noundef double @_ZNK2ad4Vec47Length3Ev(ptr noundef nonnull align 8 dereferenceable(32)) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef double @_ZN2ad4Vec410Normalize3Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) #0 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca double, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  %5 = call noundef double @_ZNK2ad4Vec47Length3Ev(ptr noundef nonnull align 8 dereferenceable(32) %4)
  store double %5, ptr %3, align 8, !tbaa !9
  %6 = load double, ptr %3, align 8, !tbaa !9
  %7 = getelementptr inbounds %"class.ad::Vec4", ptr %4, i32 0, i32 0
  %8 = load double, ptr %7, align 8, !tbaa !11
  %9 = fdiv double %8, %6
  store double %9, ptr %7, align 8, !tbaa !11
  %10 = load double, ptr %3, align 8, !tbaa !9
  %11 = getelementptr inbounds %"class.ad::Vec4", ptr %4, i32 0, i32 1
  %12 = load double, ptr %11, align 8, !tbaa !13
  %13 = fdiv double %12, %10
  store double %13, ptr %11, align 8, !tbaa !13
  %14 = load double, ptr %3, align 8, !tbaa !9
  %15 = getelementptr inbounds %"class.ad::Vec4", ptr %4, i32 0, i32 2
  %16 = load double, ptr %15, align 8, !tbaa !14
  %17 = fdiv double %16, %14
  store double %17, ptr %15, align 8, !tbaa !14
  %18 = load double, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  ret double %18
}

; 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

attributes #0 = { 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 #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, !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 = !{!"_ZTSN2ad4Vec4E", !10, i64 0, !10, i64 8, !10, i64 16, !10, i64 24}
!13 = !{!12, !10, i64 8}
!14 = !{!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"

; Function Attrs: mustprogress uwtable
declare dso_local noundef double @_ZNK2ad4Vec47Length3Ev(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef double @_ZN2ad4Vec410Normalize3Ev(ptr noundef nonnull align 8 dereferenceable(32) %0) local_unnamed_addr #0 align 2 {
  %2 = tail call noundef double @_ZNK2ad4Vec47Length3Ev(ptr noundef nonnull align 8 dereferenceable(32) %0)
  %3 = load <2 x double>, ptr %0, align 8, !tbaa !5
  %4 = insertelement <2 x double> poison, double %2, i64 0
  %5 = shufflevector <2 x double> %4, <2 x double> poison, <2 x i32> zeroinitializer
  %6 = fdiv <2 x double> %3, %5
  store <2 x double> %6, ptr %0, align 8, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %0, i64 16
  %8 = load double, ptr %7, align 8, !tbaa !9
  %9 = fdiv double %8, %2
  store double %9, ptr %7, align 8, !tbaa !9
  ret double %2
}

attributes #0 = { 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 = !{!"_ZTSN2ad4Vec4E", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}


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