; LLVM IR from jasonlmfong/Model-Modifier :: Model-Modifier/src/scene/util (OrderVertices)

; 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.glm::vec" = type { %union.anon, %union.anon.0 }
%union.anon = type { float }
%union.anon.0 = type { float }

; Function Attrs: mustprogress uwtable
define dso_local noundef float @_Z8getAngleN3glm3vecILi2EfLNS_9qualifierE0EEES2_(<2 x float> %0, <2 x float> %1) #0 {
  %3 = alloca %"struct.glm::vec", align 4
  %4 = alloca %"struct.glm::vec", align 4
  store <2 x float> %0, ptr %3, align 4
  store <2 x float> %1, ptr %4, align 4
  %5 = getelementptr inbounds %"struct.glm::vec", ptr %3, i32 0, i32 1
  %6 = load float, ptr %5, align 4, !tbaa !5
  %7 = getelementptr inbounds %"struct.glm::vec", ptr %4, i32 0, i32 1
  %8 = load float, ptr %7, align 4, !tbaa !5
  %9 = fsub float %6, %8
  %10 = getelementptr inbounds %"struct.glm::vec", ptr %3, i32 0, i32 0
  %11 = load float, ptr %10, align 4, !tbaa !5
  %12 = getelementptr inbounds %"struct.glm::vec", ptr %4, i32 0, i32 0
  %13 = load float, ptr %12, align 4, !tbaa !5
  %14 = fsub float %11, %13
  %15 = call noundef float @_ZSt5atan2ff(float noundef %9, float noundef %14)
  ret float %15
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef float @_ZSt5atan2ff(float noundef, float noundef) #1

attributes #0 = { 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 #1 = { inlinehint 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" }

!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++ 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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef float @_Z8getAngleN3glm3vecILi2EfLNS_9qualifierE0EEES2_(<2 x float> %0, <2 x float> %1) local_unnamed_addr #0 {
  %3 = fsub <2 x float> %0, %1
  %4 = extractelement <2 x float> %3, i64 1
  %5 = fsub <2 x float> %0, %1
  %6 = extractelement <2 x float> %5, i64 0
  %7 = tail call noundef float @_ZSt5atan2ff(float noundef %4, float noundef %6)
  ret float %7
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef float @_ZSt5atan2ff(float noundef, float noundef) local_unnamed_addr #1

attributes #0 = { 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 #1 = { inlinehint 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" }

!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: GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass,VectorCombinePass