; LLVM IR from Lut1n/ImpGears :: src/ImpGears/Core/Matrix4.ll (ZN3imp7Matrix416orthographicProjEffff)

; 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"

%"class.imp::Matrix4" = type { %"class.imp::Matrix" }
%"class.imp::Matrix" = type { %"class.imp::Object", [16 x float] }
%"class.imp::Object" = type { ptr, %"class.std::shared_ptr" }
%"class.std::shared_ptr" = type { %"class.std::__shared_ptr" }
%"class.std::__shared_ptr" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: 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 void @_ZN3imp7Matrix416orthographicProjEffff(ptr dead_on_unwind noalias writable sret(%"class.imp::Matrix4") align 8 %0, float noundef %1, float noundef %2, float noundef %3, float noundef %4) #1 align 2 {
  %6 = alloca ptr, align 8
  %7 = alloca float, align 4
  %8 = alloca float, align 4
  %9 = alloca float, align 4
  %10 = alloca float, align 4
  %11 = alloca float, align 4
  %12 = alloca float, align 4
  %13 = alloca float, align 4
  %14 = alloca float, align 4
  %15 = alloca [16 x float], align 16
  store ptr %0, ptr %6, align 8
  store float %1, ptr %7, align 4, !tbaa !5
  store float %2, ptr %8, align 4, !tbaa !5
  store float %3, ptr %9, align 4, !tbaa !5
  store float %4, ptr %10, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #2
  %16 = load float, ptr %7, align 4, !tbaa !5
  %17 = fdiv float 2.000000e+00, %16
  store float %17, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #2
  %18 = load float, ptr %8, align 4, !tbaa !5
  %19 = fdiv float 2.000000e+00, %18
  store float %19, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #2
  %20 = load float, ptr %10, align 4, !tbaa !5
  %21 = load float, ptr %9, align 4, !tbaa !5
  %22 = fsub float %20, %21
  %23 = fdiv float -2.000000e+00, %22
  store float %23, ptr %13, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #2
  %24 = load float, ptr %10, align 4, !tbaa !5
  %25 = load float, ptr %9, align 4, !tbaa !5
  %26 = fadd float %24, %25
  %27 = fneg float %26
  %28 = load float, ptr %10, align 4, !tbaa !5
  %29 = load float, ptr %9, align 4, !tbaa !5
  %30 = fsub float %28, %29
  %31 = fdiv float %27, %30
  store float %31, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 64, ptr %15) #2
  %32 = load float, ptr %11, align 4, !tbaa !5
  store float %32, ptr %15, align 4, !tbaa !5
  %33 = getelementptr inbounds float, ptr %15, i64 1
  store float 0.000000e+00, ptr %33, align 4, !tbaa !5
  %34 = getelementptr inbounds float, ptr %15, i64 2
  store float 0.000000e+00, ptr %34, align 4, !tbaa !5
  %35 = getelementptr inbounds float, ptr %15, i64 3
  store float 0.000000e+00, ptr %35, align 4, !tbaa !5
  %36 = getelementptr inbounds float, ptr %15, i64 4
  store float 0.000000e+00, ptr %36, align 4, !tbaa !5
  %37 = getelementptr inbounds float, ptr %15, i64 5
  %38 = load float, ptr %12, align 4, !tbaa !5
  store float %38, ptr %37, align 4, !tbaa !5
  %39 = getelementptr inbounds float, ptr %15, i64 6
  store float 0.000000e+00, ptr %39, align 4, !tbaa !5
  %40 = getelementptr inbounds float, ptr %15, i64 7
  store float 0.000000e+00, ptr %40, align 4, !tbaa !5
  %41 = getelementptr inbounds float, ptr %15, i64 8
  store float 0.000000e+00, ptr %41, align 4, !tbaa !5
  %42 = getelementptr inbounds float, ptr %15, i64 9
  store float 0.000000e+00, ptr %42, align 4, !tbaa !5
  %43 = getelementptr inbounds float, ptr %15, i64 10
  %44 = load float, ptr %13, align 4, !tbaa !5
  store float %44, ptr %43, align 4, !tbaa !5
  %45 = getelementptr inbounds float, ptr %15, i64 11
  %46 = load float, ptr %14, align 4, !tbaa !5
  store float %46, ptr %45, align 4, !tbaa !5
  %47 = getelementptr inbounds float, ptr %15, i64 12
  store float 0.000000e+00, ptr %47, align 4, !tbaa !5
  %48 = getelementptr inbounds float, ptr %15, i64 13
  store float 0.000000e+00, ptr %48, align 4, !tbaa !5
  %49 = getelementptr inbounds float, ptr %15, i64 14
  store float 0.000000e+00, ptr %49, align 4, !tbaa !5
  %50 = getelementptr inbounds float, ptr %15, i64 15
  store float 1.000000e+00, ptr %50, align 4, !tbaa !5
  %51 = getelementptr inbounds [16 x float], ptr %15, i64 0, i64 0
  call void @_ZN3imp7Matrix4C1EPKfb(ptr noundef nonnull align 8 dereferenceable(88) %0, ptr noundef %51, i1 noundef zeroext true)
  call void @llvm.lifetime.end.p0(i64 64, ptr %15) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #2
  ret void
}

declare void @_ZN3imp7Matrix4C1EPKfb(ptr, ptr, i1)

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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, !6, i64 0}
!6 = !{!"float", !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"

%"class.imp::Matrix4" = type { %"class.imp::Matrix" }
%"class.imp::Matrix" = type { %"class.imp::Object", [16 x float] }
%"class.imp::Object" = type { ptr, %"class.std::shared_ptr" }
%"class.std::shared_ptr" = type { %"class.std::__shared_ptr" }
%"class.std::__shared_ptr" = type { ptr, %"class.std::__shared_count" }
%"class.std::__shared_count" = type { ptr }

; 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 void @_ZN3imp7Matrix416orthographicProjEffff(ptr dead_on_unwind noalias writable sret(%"class.imp::Matrix4") align 8 %0, float noundef %1, float noundef %2, float noundef %3, float noundef %4) local_unnamed_addr #1 align 2 {
  %6 = alloca [16 x float], align 16
  %7 = fdiv float 2.000000e+00, %1
  %8 = fdiv float 2.000000e+00, %2
  %9 = fsub float %4, %3
  %10 = fadd float %3, %4
  %11 = fneg float %10
  call void @llvm.lifetime.start.p0(i64 64, ptr nonnull %6) #3
  store float %7, ptr %6, align 16, !tbaa !5
  %12 = getelementptr inbounds i8, ptr %6, i64 4
  %13 = getelementptr inbounds i8, ptr %6, i64 20
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(16) %12, i8 0, i64 16, i1 false)
  store float %8, ptr %13, align 4, !tbaa !5
  %14 = getelementptr inbounds i8, ptr %6, i64 24
  %15 = getelementptr inbounds i8, ptr %6, i64 40
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %14, i8 0, i64 16, i1 false)
  %16 = insertelement <2 x float> <float -2.000000e+00, float poison>, float %11, i64 1
  %17 = insertelement <2 x float> poison, float %9, i64 0
  %18 = shufflevector <2 x float> %17, <2 x float> poison, <2 x i32> zeroinitializer
  %19 = fdiv <2 x float> %16, %18
  store <2 x float> %19, ptr %15, align 8, !tbaa !5
  %20 = getelementptr inbounds i8, ptr %6, i64 48
  store <4 x float> <float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00>, ptr %20, align 16, !tbaa !5
  call void @_ZN3imp7Matrix4C1EPKfb(ptr noundef nonnull align 8 dereferenceable(88) %0, ptr noundef nonnull %6, i1 noundef zeroext true)
  call void @llvm.lifetime.end.p0(i64 64, ptr nonnull %6) #3
  ret void
}

declare void @_ZN3imp7Matrix4C1EPKfb(ptr, ptr, i1) local_unnamed_addr

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

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


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