; LLVM IR from chrxh/alien :: source/Base/Vector2D.ll (ZNK12RealVector2DdvEf)

; 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.RealVector2D = type { float, float }
%"class.std::initializer_list" = type { ptr, i64 }

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

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

; Function Attrs: mustprogress uwtable
define dso_local <2 x float> @_ZNK12RealVector2DdvEf(ptr noundef nonnull align 4 dereferenceable(8) %0, float noundef %1) #1 align 2 {
  %3 = alloca %struct.RealVector2D, align 4
  %4 = alloca ptr, align 8
  %5 = alloca float, align 4
  %6 = alloca %"class.std::initializer_list", align 8
  %7 = alloca [2 x float], align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store float %1, ptr %5, align 4, !tbaa !9
  %8 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %9 = getelementptr inbounds %struct.RealVector2D, ptr %8, i32 0, i32 0
  %10 = load float, ptr %9, align 4, !tbaa !11
  %11 = load float, ptr %5, align 4, !tbaa !9
  %12 = fdiv float %10, %11
  store float %12, ptr %7, align 4, !tbaa !9
  %13 = getelementptr inbounds float, ptr %7, i64 1
  %14 = getelementptr inbounds %struct.RealVector2D, ptr %8, i32 0, i32 1
  %15 = load float, ptr %14, align 4, !tbaa !13
  %16 = load float, ptr %5, align 4, !tbaa !9
  %17 = fdiv float %15, %16
  store float %17, ptr %13, align 4, !tbaa !9
  %18 = getelementptr inbounds %"class.std::initializer_list", ptr %6, i32 0, i32 0
  store ptr %7, ptr %18, align 8, !tbaa !14
  %19 = getelementptr inbounds %"class.std::initializer_list", ptr %6, i32 0, i32 1
  store i64 2, ptr %19, align 8, !tbaa !17
  %20 = getelementptr inbounds { ptr, i64 }, ptr %6, i32 0, i32 0
  %21 = load ptr, ptr %20, align 8
  %22 = getelementptr inbounds { ptr, i64 }, ptr %6, i32 0, i32 1
  %23 = load i64, ptr %22, align 8
  call void @_ZN12RealVector2DC1ESt16initializer_listIfE(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr %21, i64 %23)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  %24 = load <2 x float>, ptr %3, align 4
  ret <2 x float> %24
}

declare void @_ZN12RealVector2DC1ESt16initializer_listIfE(ptr, ptr, i64)

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress uwtable "min-legal-vector-width"="64" "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, !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 = !{!"float", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS12RealVector2D", !10, i64 0, !10, i64 4}
!13 = !{!12, !10, i64 4}
!14 = !{!15, !6, i64 0}
!15 = !{!"_ZTSSt16initializer_listIfE", !6, i64 0, !16, i64 8}
!16 = !{!"long", !7, i64 0}
!17 = !{!15, !16, i64 8}


; 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"

%struct.RealVector2D = type { float, float }

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

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

; Function Attrs: mustprogress uwtable
define dso_local <2 x float> @_ZNK12RealVector2DdvEf(ptr nocapture noundef nonnull readonly align 4 dereferenceable(8) %0, float noundef %1) local_unnamed_addr #1 align 2 {
  %3 = alloca %struct.RealVector2D, align 8
  %4 = alloca [2 x float], align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #2
  %5 = load <2 x float>, ptr %0, align 4, !tbaa !5
  %6 = insertelement <2 x float> poison, float %1, i64 0
  %7 = shufflevector <2 x float> %6, <2 x float> poison, <2 x i32> zeroinitializer
  %8 = fdiv <2 x float> %5, %7
  store <2 x float> %8, ptr %4, align 8, !tbaa !5
  call void @_ZN12RealVector2DC1ESt16initializer_listIfE(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr nonnull %4, i64 2)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #2
  %9 = load <2 x float>, ptr %3, align 8
  ret <2 x float> %9
}

declare void @_ZN12RealVector2DC1ESt16initializer_listIfE(ptr, ptr, i64) local_unnamed_addr

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress uwtable "min-legal-vector-width"="64" "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, !6, i64 0}
!6 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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