; LLVM IR from achilles288/robot-monitor-graphics :: src/base/context_world.ll (ZNK3rmg7Context25getDirectionalLightAnglesEv)

; 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.rmg::Euler" = type { float, float, float }
%"class.rmg::Context" = type { ptr, i32, i16, i16, %"struct.rmg::ColorRGBA", %"class.rmg::Camera", %"struct.rmg::Vec3", %"struct.rmg::Vec3", %"struct.rmg::ColorRGBA", %"class.rmg::ObjectList", %"class.rmg::ObjectList", %"class.rmg::ObjectList", %"class.rmg::ObjectList", %"class.rmg::ObjectList", %"class.rmg::MaterialList", %"class.rmg::FontList", %"class.rmg::internal::GeneralShader", %"class.rmg::internal::ShadowMapShader", %"class.rmg::internal::Object2DShader", %"class.rmg::internal::ParticleShader", %"class.rmg::internal::Line3DShader", %"class.rmg::internal::ContextLoader", %"class.rmg::internal::GLContext", i8, float, i8, i32 }
%"class.rmg::Camera" = type { %"struct.rmg::Vec3", %"struct.rmg::Mat3", %"struct.rmg::Mat4", %"struct.rmg::Mat4", %"struct.rmg::Mat4", float, float, float, float, float, i32 }
%"struct.rmg::Mat3" = type { %union.anon.0 }
%union.anon.0 = type { [3 x [3 x float]] }
%"struct.rmg::Mat4" = type { %union.anon.1 }
%union.anon.1 = type { [4 x [4 x float]] }
%"struct.rmg::Vec3" = type { %union.anon }
%union.anon = type { %struct.anon }
%struct.anon = type { float, float, float }
%"struct.rmg::ColorRGBA" = type { float, float, float, float }
%"class.rmg::ObjectList" = type { %"class.rmg::LinkedList.base", [4 x i8] }
%"class.rmg::LinkedList.base" = type <{ ptr, ptr, i32 }>
%"class.rmg::MaterialList" = type { %"class.rmg::LinkedList.base.3", [4 x i8] }
%"class.rmg::LinkedList.base.3" = type <{ ptr, ptr, i32 }>
%"class.rmg::FontList" = type { %"class.rmg::LinkedList.base.5", [4 x i8] }
%"class.rmg::LinkedList.base.5" = type <{ ptr, ptr, i32 }>
%"class.rmg::internal::GeneralShader" = type { %"class.rmg::internal::Shader.base", i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, [4 x i8] }
%"class.rmg::internal::Shader.base" = type <{ ptr, i32 }>
%"class.rmg::internal::ShadowMapShader" = type { %"class.rmg::internal::Shader.base", %"class.rmg::Camera", %"struct.rmg::Vec3", %"struct.rmg::Vec3", %"struct.rmg::Vec3", float, float, float, i32, i32, i32 }
%"class.rmg::internal::Object2DShader" = type { %"class.rmg::internal::SpriteShader", %"class.rmg::internal::Text2DShader", %"struct.rmg::Mat3", i16, i16 }
%"class.rmg::internal::SpriteShader" = type { %"class.rmg::internal::Shader.base", i32, i32, i32, i32, i32 }
%"class.rmg::internal::Text2DShader" = type { %"class.rmg::internal::Shader.base", i32, i32, i32, i32, i32, i32, i32 }
%"class.rmg::internal::ParticleShader" = type { %"class.rmg::internal::Shader.base", i32, i32, i32, i32, i32, i32, i32 }
%"class.rmg::internal::Line3DShader" = type { %"class.rmg::internal::Shader.base", i32, i32, i32, i32, i32 }
%"class.rmg::internal::ContextLoader" = type { %"class.rmg::internal::PendingStack" }
%"class.rmg::internal::PendingStack" = type <{ ptr, %"class.rmg::internal::Pending", i32, [4 x i8] }>
%"class.rmg::internal::Pending" = type { ptr, ptr }
%"class.rmg::internal::GLContext" = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

; 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: nounwind
declare double @cos(double noundef) #2

; Function Attrs: mustprogress nounwind uwtable
define dso_local { <2 x float>, float } @_ZNK3rmg7Context25getDirectionalLightAnglesEv(ptr noundef nonnull align 8 dereferenceable(1440) %0) #3 align 2 {
  %2 = alloca %"struct.rmg::Euler", align 4
  %3 = alloca ptr, align 8
  %4 = alloca float, align 4
  %5 = alloca { <2 x float>, float }, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %6 = load ptr, ptr %3, align 8
  call void @_ZN3rmg5EulerC2Ev(ptr noundef nonnull align 4 dereferenceable(12) %2) #4
  %7 = getelementptr inbounds %"struct.rmg::Euler", ptr %2, i32 0, i32 0
  store float 0.000000e+00, ptr %7, align 4, !tbaa !9
  %8 = getelementptr inbounds %"class.rmg::Context", ptr %6, i32 0, i32 6
  %9 = getelementptr inbounds %"struct.rmg::Vec3", ptr %8, i32 0, i32 0
  %10 = getelementptr inbounds %struct.anon, ptr %9, i32 0, i32 2
  %11 = load float, ptr %10, align 8, !tbaa !12
  %12 = fneg float %11
  %13 = fpext float %12 to double
  %14 = call double @asin(double noundef %13) #4
  %15 = fptrunc double %14 to float
  %16 = getelementptr inbounds %"struct.rmg::Euler", ptr %2, i32 0, i32 1
  store float %15, ptr %16, align 4, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  %17 = getelementptr inbounds %"struct.rmg::Euler", ptr %2, i32 0, i32 1
  %18 = load float, ptr %17, align 4, !tbaa !13
  %19 = fpext float %18 to double
  %20 = call double @cos(double noundef %19) #4
  %21 = fptrunc double %20 to float
  store float %21, ptr %4, align 4, !tbaa !14
  %22 = getelementptr inbounds %"class.rmg::Context", ptr %6, i32 0, i32 6
  %23 = getelementptr inbounds %"struct.rmg::Vec3", ptr %22, i32 0, i32 0
  %24 = getelementptr inbounds %struct.anon, ptr %23, i32 0, i32 1
  %25 = load float, ptr %24, align 4, !tbaa !12
  %26 = load float, ptr %4, align 4, !tbaa !14
  %27 = fdiv float %25, %26
  %28 = fpext float %27 to double
  %29 = getelementptr inbounds %"class.rmg::Context", ptr %6, i32 0, i32 6
  %30 = getelementptr inbounds %"struct.rmg::Vec3", ptr %29, i32 0, i32 0
  %31 = getelementptr inbounds %struct.anon, ptr %30, i32 0, i32 0
  %32 = load float, ptr %31, align 8, !tbaa !12
  %33 = load float, ptr %4, align 4, !tbaa !14
  %34 = fdiv float %32, %33
  %35 = fpext float %34 to double
  %36 = call double @atan2(double noundef %28, double noundef %35) #4
  %37 = fptrunc double %36 to float
  %38 = getelementptr inbounds %"struct.rmg::Euler", ptr %2, i32 0, i32 2
  store float %37, ptr %38, align 4, !tbaa !15
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %5, ptr align 4 %2, i64 12, i1 false)
  %39 = load { <2 x float>, float }, ptr %5, align 8
  ret { <2 x float>, float } %39
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3rmg5EulerC2Ev(ptr noundef nonnull align 4 dereferenceable(12)) unnamed_addr #3 align 2

; Function Attrs: nounwind
declare double @asin(double noundef) #2

; Function Attrs: nounwind
declare double @atan2(double noundef, double noundef) #2

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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" }
attributes #4 = { 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, !11, i64 0}
!10 = !{!"_ZTSN3rmg5EulerE", !11, i64 0, !11, i64 4, !11, i64 8}
!11 = !{!"float", !7, i64 0}
!12 = !{!7, !7, i64 0}
!13 = !{!10, !11, i64 4}
!14 = !{!11, !11, i64 0}
!15 = !{!10, !11, 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.rmg::Euler" = type { float, float, float }

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @cos(double noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local { <2 x float>, float } @_ZNK3rmg7Context25getDirectionalLightAnglesEv(ptr nocapture noundef nonnull readonly align 8 dereferenceable(1440) %0) local_unnamed_addr #1 align 2 {
  %2 = alloca %"struct.rmg::Euler", align 8
  call void @_ZN3rmg5EulerC2Ev(ptr noundef nonnull align 4 dereferenceable(12) %2) #2
  store float 0.000000e+00, ptr %2, align 8, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %0, i64 296
  %4 = getelementptr inbounds i8, ptr %0, i64 304
  %5 = load float, ptr %4, align 8, !tbaa !10
  %6 = fneg float %5
  %7 = fpext float %6 to double
  %8 = call double @asin(double noundef %7) #2
  %9 = fptrunc double %8 to float
  %10 = getelementptr inbounds i8, ptr %2, i64 4
  store float %9, ptr %10, align 4, !tbaa !11
  %11 = fpext float %9 to double
  %12 = call double @cos(double noundef %11) #2
  %13 = fptrunc double %12 to float
  %14 = getelementptr inbounds i8, ptr %0, i64 300
  %15 = load float, ptr %14, align 4, !tbaa !10
  %16 = fdiv float %15, %13
  %17 = fpext float %16 to double
  %18 = load float, ptr %3, align 8, !tbaa !10
  %19 = fdiv float %18, %13
  %20 = fpext float %19 to double
  %21 = call double @atan2(double noundef %17, double noundef %20) #2
  %22 = fptrunc double %21 to float
  %.sroa.0.0.copyload = load <2 x float>, ptr %2, 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 %22, 1
  ret { <2 x float>, float } %.fca.1.insert
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN3rmg5EulerC2Ev(ptr noundef nonnull align 4 dereferenceable(12)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @asin(double noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @atan2(double noundef, double noundef) local_unnamed_addr #0

attributes #0 = { mustprogress nofree nounwind willreturn memory(write) "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 = { 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" }
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, !7, i64 0}
!6 = !{!"_ZTSN3rmg5EulerE", !7, i64 0, !7, i64 4, !7, i64 8}
!7 = !{!"float", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!8, !8, i64 0}
!11 = !{!6, !7, i64 4}


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