; LLVM IR from achilles288/robot-monitor-graphics :: src/base/camera.ll (ZNK3rmg6Camera11worldToClipEfff)

; 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::Vec3" = type { %union.anon.0 }
%union.anon.0 = type { %struct.anon }
%struct.anon = type { float, float, float }
%"struct.rmg::Vec4" = type { %union.anon.2 }
%union.anon.2 = type { %struct.anon.3 }
%struct.anon.3 = type { float, float, float, float }
%"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.1 }
%union.anon.1 = type { [3 x [3 x float]] }
%"struct.rmg::Mat4" = type { %union.anon }
%union.anon = type { [4 x [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 uwtable
define dso_local { <2 x float>, float } @_ZNK3rmg6Camera11worldToClipEfff(ptr noundef nonnull align 4 dereferenceable(264) %0, float noundef %1, float noundef %2, float noundef %3) #2 align 2 {
  %5 = alloca %"struct.rmg::Vec3", align 4
  %6 = alloca ptr, align 8
  %7 = alloca float, align 4
  %8 = alloca float, align 4
  %9 = alloca float, align 4
  %10 = alloca %"struct.rmg::Vec4", align 4
  %11 = alloca %"struct.rmg::Vec4", align 4
  %12 = alloca { <2 x float>, float }, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store float %1, ptr %7, align 4, !tbaa !9
  store float %2, ptr %8, align 4, !tbaa !9
  store float %3, ptr %9, align 4, !tbaa !9
  %13 = load ptr, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr %10) #5
  %14 = getelementptr inbounds %"class.rmg::Camera", ptr %13, i32 0, i32 4
  call void @llvm.lifetime.start.p0(i64 16, ptr %11) #5
  %15 = load float, ptr %7, align 4, !tbaa !9
  %16 = load float, ptr %8, align 4, !tbaa !9
  %17 = load float, ptr %9, align 4, !tbaa !9
  call void @_ZN3rmg4Vec4C2Effff(ptr noundef nonnull align 4 dereferenceable(16) %11, float noundef %15, float noundef %16, float noundef %17, float noundef 1.000000e+00)
  %18 = call { <2 x float>, <2 x float> } @_ZNK3rmg4Mat4mlERKNS_4Vec4E(ptr noundef nonnull align 4 dereferenceable(64) %14, ptr noundef nonnull align 4 dereferenceable(16) %11)
  %19 = getelementptr inbounds %"struct.rmg::Vec4", ptr %10, i32 0, i32 0
  %20 = getelementptr inbounds %union.anon.2, ptr %19, i32 0, i32 0
  %21 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %20, i32 0, i32 0
  %22 = extractvalue { <2 x float>, <2 x float> } %18, 0
  store <2 x float> %22, ptr %21, align 4
  %23 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %20, i32 0, i32 1
  %24 = extractvalue { <2 x float>, <2 x float> } %18, 1
  store <2 x float> %24, ptr %23, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %11) #5
  %25 = getelementptr inbounds %"struct.rmg::Vec4", ptr %10, i32 0, i32 0
  %26 = getelementptr inbounds %struct.anon.3, ptr %25, i32 0, i32 0
  %27 = load float, ptr %26, align 4, !tbaa !11
  %28 = getelementptr inbounds %"struct.rmg::Vec4", ptr %10, i32 0, i32 0
  %29 = getelementptr inbounds %struct.anon.3, ptr %28, i32 0, i32 3
  %30 = load float, ptr %29, align 4, !tbaa !11
  %31 = fdiv float %27, %30
  %32 = getelementptr inbounds %"struct.rmg::Vec4", ptr %10, i32 0, i32 0
  %33 = getelementptr inbounds %struct.anon.3, ptr %32, i32 0, i32 1
  %34 = load float, ptr %33, align 4, !tbaa !11
  %35 = getelementptr inbounds %"struct.rmg::Vec4", ptr %10, i32 0, i32 0
  %36 = getelementptr inbounds %struct.anon.3, ptr %35, i32 0, i32 3
  %37 = load float, ptr %36, align 4, !tbaa !11
  %38 = fdiv float %34, %37
  %39 = getelementptr inbounds %"struct.rmg::Vec4", ptr %10, i32 0, i32 0
  %40 = getelementptr inbounds %struct.anon.3, ptr %39, i32 0, i32 2
  %41 = load float, ptr %40, align 4, !tbaa !11
  %42 = getelementptr inbounds %"struct.rmg::Vec4", ptr %10, i32 0, i32 0
  %43 = getelementptr inbounds %struct.anon.3, ptr %42, i32 0, i32 3
  %44 = load float, ptr %43, align 4, !tbaa !11
  %45 = fdiv float %41, %44
  call void @_ZN3rmg4Vec3C2Efff(ptr noundef nonnull align 4 dereferenceable(12) %5, float noundef %31, float noundef %38, float noundef %45)
  call void @llvm.lifetime.end.p0(i64 16, ptr %10) #5
  %46 = getelementptr inbounds %"struct.rmg::Vec3", ptr %5, i32 0, i32 0
  %47 = getelementptr inbounds %union.anon.0, ptr %46, i32 0, i32 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %12, ptr align 4 %47, i64 12, i1 false)
  %48 = load { <2 x float>, float }, ptr %12, align 8
  ret { <2 x float>, float } %48
}

declare { <2 x float>, <2 x float> } @_ZNK3rmg4Mat4mlERKNS_4Vec4E(ptr noundef nonnull align 4 dereferenceable(64), ptr noundef nonnull align 4 dereferenceable(16)) #3

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN3rmg4Vec4C2Effff(ptr noundef nonnull align 4 dereferenceable(16), float noundef, float noundef, float noundef, float noundef) unnamed_addr #4 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN3rmg4Vec3C2Efff(ptr noundef nonnull align 4 dereferenceable(12), float noundef, float noundef, float noundef) unnamed_addr #4 align 2

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "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 = { 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" }
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 = !{!"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 = !{!7, !7, i64 0}


; 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::Vec3" = type { %union.anon.0 }
%union.anon.0 = type { %struct.anon }
%struct.anon = type { float, float, float }
%"struct.rmg::Vec4" = type { %union.anon.2 }
%union.anon.2 = type { %struct.anon.3 }
%struct.anon.3 = type { float, 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 uwtable
define dso_local { <2 x float>, float } @_ZNK3rmg6Camera11worldToClipEfff(ptr noundef nonnull align 4 dereferenceable(264) %0, float noundef %1, float noundef %2, float noundef %3) local_unnamed_addr #1 align 2 {
  %5 = alloca %"struct.rmg::Vec3", align 8
  %6 = alloca %"struct.rmg::Vec4", align 4
  %7 = getelementptr inbounds i8, ptr %0, i64 176
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %6) #4
  call void @_ZN3rmg4Vec4C2Effff(ptr noundef nonnull align 4 dereferenceable(16) %6, float noundef %1, float noundef %2, float noundef %3, float noundef 1.000000e+00)
  %8 = call { <2 x float>, <2 x float> } @_ZNK3rmg4Mat4mlERKNS_4Vec4E(ptr noundef nonnull align 4 dereferenceable(64) %7, ptr noundef nonnull align 4 dereferenceable(16) %6)
  %9 = extractvalue { <2 x float>, <2 x float> } %8, 0
  %10 = extractvalue { <2 x float>, <2 x float> } %8, 1
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #4
  %.sroa.01.0.vec.extract = extractelement <2 x float> %9, i64 0
  %.sroa.5.12.vec.extract = extractelement <2 x float> %10, i64 1
  %11 = fdiv float %.sroa.01.0.vec.extract, %.sroa.5.12.vec.extract
  %.sroa.01.4.vec.extract = extractelement <2 x float> %9, i64 1
  %12 = fdiv float %.sroa.01.4.vec.extract, %.sroa.5.12.vec.extract
  %.sroa.5.8.vec.extract = extractelement <2 x float> %10, i64 0
  %13 = fdiv float %.sroa.5.8.vec.extract, %.sroa.5.12.vec.extract
  call void @_ZN3rmg4Vec3C2Efff(ptr noundef nonnull align 4 dereferenceable(12) %5, float noundef %11, float noundef %12, float noundef %13)
  %.sroa.0.0.copyload = load <2 x float>, ptr %5, align 8
  %.sroa.2.0..sroa_idx = getelementptr inbounds i8, ptr %5, 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
}

declare { <2 x float>, <2 x float> } @_ZNK3rmg4Mat4mlERKNS_4Vec4E(ptr noundef nonnull align 4 dereferenceable(64), ptr noundef nonnull align 4 dereferenceable(16)) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN3rmg4Vec4C2Effff(ptr noundef nonnull align 4 dereferenceable(16), float noundef, float noundef, float noundef, float noundef) unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN3rmg4Vec3C2Efff(ptr noundef nonnull align 4 dereferenceable(12), float noundef, float noundef, float noundef) unnamed_addr #3 align 2

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 = { "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 = { 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" }
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)"}


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