; LLVM IR from heroseh/cgm :: cgm (CgmVec3_norm)

; 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"

%union.CgmVec3 = type { %struct.anon.0 }
%struct.anon.0 = type { float, float, float }

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fmuladd.f32(float, float, float) #0

; 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 nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind
declare float @sqrtf(float noundef) #3

; Function Attrs: nounwind uwtable
define dso_local { <2 x float>, float } @CgmVec3_norm(<2 x float> %0, float %1) #4 {
  %3 = alloca %union.CgmVec3, align 4
  %4 = alloca %union.CgmVec3, align 4
  %5 = alloca { <2 x float>, float }, align 4
  %6 = alloca float, align 4
  %7 = alloca { <2 x float>, float }, align 8
  %8 = getelementptr inbounds { <2 x float>, float }, ptr %5, i32 0, i32 0
  store <2 x float> %0, ptr %8, align 4
  %9 = getelementptr inbounds { <2 x float>, float }, ptr %5, i32 0, i32 1
  store float %1, ptr %9, align 4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %4, ptr align 4 %5, i64 12, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  %10 = getelementptr inbounds %struct.anon.0, ptr %4, i32 0, i32 0
  %11 = load float, ptr %10, align 4, !tbaa !5
  %12 = getelementptr inbounds %struct.anon.0, ptr %4, i32 0, i32 0
  %13 = load float, ptr %12, align 4, !tbaa !5
  %14 = getelementptr inbounds %struct.anon.0, ptr %4, i32 0, i32 1
  %15 = load float, ptr %14, align 4, !tbaa !5
  %16 = getelementptr inbounds %struct.anon.0, ptr %4, i32 0, i32 1
  %17 = load float, ptr %16, align 4, !tbaa !5
  %18 = fmul float %15, %17
  %19 = call float @llvm.fmuladd.f32(float %11, float %13, float %18)
  %20 = getelementptr inbounds %struct.anon.0, ptr %4, i32 0, i32 2
  %21 = load float, ptr %20, align 4, !tbaa !5
  %22 = getelementptr inbounds %struct.anon.0, ptr %4, i32 0, i32 2
  %23 = load float, ptr %22, align 4, !tbaa !5
  %24 = call float @llvm.fmuladd.f32(float %21, float %23, float %19)
  %25 = call float @sqrtf(float noundef %24) #5
  %26 = fpext float %25 to double
  %27 = fdiv double 1.000000e+00, %26
  %28 = fptrunc double %27 to float
  store float %28, ptr %6, align 4, !tbaa !8
  %29 = getelementptr inbounds %struct.anon.0, ptr %3, i32 0, i32 0
  %30 = getelementptr inbounds %struct.anon.0, ptr %4, i32 0, i32 0
  %31 = load float, ptr %30, align 4, !tbaa !5
  %32 = load float, ptr %6, align 4, !tbaa !8
  %33 = fmul float %31, %32
  store float %33, ptr %29, align 4, !tbaa !10
  %34 = getelementptr inbounds %struct.anon.0, ptr %3, i32 0, i32 1
  %35 = getelementptr inbounds %struct.anon.0, ptr %4, i32 0, i32 1
  %36 = load float, ptr %35, align 4, !tbaa !5
  %37 = load float, ptr %6, align 4, !tbaa !8
  %38 = fmul float %36, %37
  store float %38, ptr %34, align 4, !tbaa !12
  %39 = getelementptr inbounds %struct.anon.0, ptr %3, i32 0, i32 2
  %40 = getelementptr inbounds %struct.anon.0, ptr %4, i32 0, i32 2
  %41 = load float, ptr %40, align 4, !tbaa !5
  %42 = load float, ptr %6, align 4, !tbaa !8
  %43 = fmul float %41, %42
  store float %43, ptr %39, align 4, !tbaa !13
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  %44 = getelementptr inbounds %union.CgmVec3, ptr %3, i32 0, i32 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %7, ptr align 4 %44, i64 12, i1 false)
  %45 = load { <2 x float>, float }, ptr %7, align 8
  ret { <2 x float>, float } %45
}

attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nounwind "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 #4 = { nounwind 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 #5 = { 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"float", !6, i64 0}
!10 = !{!11, !9, i64 0}
!11 = !{!"", !9, i64 0, !9, i64 4, !9, i64 8}
!12 = !{!11, !9, i64 4}
!13 = !{!11, !9, 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"

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fmuladd.f32(float, float, float) #0

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local { <2 x float>, float } @CgmVec3_norm(<2 x float> %0, float %1) local_unnamed_addr #1 {
  %3 = extractelement <2 x float> %0, i64 0
  %4 = fmul <2 x float> %0, %0
  %5 = extractelement <2 x float> %4, i64 1
  %6 = tail call float @llvm.fmuladd.f32(float %3, float %3, float %5)
  %7 = tail call float @llvm.fmuladd.f32(float %1, float %1, float %6)
  %sqrt = tail call float @llvm.sqrt.f32(float %7)
  %8 = fdiv float 1.000000e+00, %sqrt
  %9 = insertelement <2 x float> poison, float %8, i64 0
  %10 = shufflevector <2 x float> %9, <2 x float> poison, <2 x i32> zeroinitializer
  %11 = fmul <2 x float> %10, %0
  %12 = fmul float %8, %1
  %.fca.0.insert = insertvalue { <2 x float>, float } poison, <2 x float> %11, 0
  %.fca.1.insert = insertvalue { <2 x float>, float } %.fca.0.insert, float %12, 1
  ret { <2 x float>, float } %.fca.1.insert
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.sqrt.f32(float) #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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)"}


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