; LLVM IR from ashishzero/karma :: src/modules/core/lin_maths.ll (Z13quat_get_axis4Quat)

; 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.Vec3 = type { %struct.anon }
%struct.anon = type { float, float, float }
%union.Quat = type { [4 x float] }

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_Z19quat_get_angle_axis4QuatPfP4Vec3(<2 x float>, <2 x float>, ptr noundef, ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
define dso_local { <2 x float>, float } @_Z13quat_get_axis4Quat(<2 x float> %0, <2 x float> %1) #2 {
  %3 = alloca %union.Vec3, align 4
  %4 = alloca %union.Quat, align 4
  %5 = alloca float, align 4
  %6 = alloca %union.Quat, align 4
  %7 = alloca { <2 x float>, float }, align 8
  %8 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %4, i32 0, i32 0
  store <2 x float> %0, ptr %8, align 4
  %9 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %4, i32 0, i32 1
  store <2 x float> %1, ptr %9, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %6, ptr align 4 %4, i64 16, i1 false), !tbaa.struct !5
  %10 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %6, i32 0, i32 0
  %11 = load <2 x float>, ptr %10, align 4
  %12 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %6, i32 0, i32 1
  %13 = load <2 x float>, ptr %12, align 4
  call void @_Z19quat_get_angle_axis4QuatPfP4Vec3(<2 x float> %11, <2 x float> %13, ptr noundef %5, ptr noundef %3)
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  %14 = getelementptr inbounds %union.Vec3, ptr %3, i32 0, i32 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %7, ptr align 4 %14, i64 12, i1 false)
  %15 = load { <2 x float>, float }, ptr %7, align 8
  ret { <2 x float>, float } %15
}

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress 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 #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 = !{i64 0, i64 16, !6}
!6 = !{!7, !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; 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"

%union.Vec3 = type { %struct.anon }
%struct.anon = type { float, 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 nounwind uwtable
declare dso_local void @_Z19quat_get_angle_axis4QuatPfP4Vec3(<2 x float>, <2 x float>, ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
define dso_local { <2 x float>, float } @_Z13quat_get_axis4Quat(<2 x float> %0, <2 x float> %1) local_unnamed_addr #1 {
  %3 = alloca %union.Vec3, align 8
  %4 = alloca float, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #2
  call void @_Z19quat_get_angle_axis4QuatPfP4Vec3(<2 x float> %0, <2 x float> %1, ptr noundef nonnull %4, ptr noundef nonnull %3)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #2
  %.sroa.0.0.copyload = load <2 x float>, ptr %3, align 8
  %.sroa.2.0..sroa_idx = getelementptr inbounds i8, ptr %3, i64 8
  %.sroa.2.0.copyload = load float, ptr %.sroa.2.0..sroa_idx, align 8
  %.fca.0.insert = insertvalue { <2 x float>, float } poison, <2 x float> %.sroa.0.0.copyload, 0
  %.fca.1.insert = insertvalue { <2 x float>, float } %.fca.0.insert, float %.sroa.2.0.copyload, 1
  ret { <2 x float>, float } %.fca.1.insert
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 #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)"}


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