; LLVM IR from aap/librw :: src/base.ll (ZN2rw6Matrix6lookAtERKNS_3V3dES3_)

; 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.rw::V3d" = type { float, float, float }
%"struct.rw::Matrix" = type { %"struct.rw::V3d", i32, %"struct.rw::V3d", i32, %"struct.rw::V3d", i32, %"struct.rw::V3d", i32 }

; 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: 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) #1

; Function Attrs: mustprogress uwtable
declare dso_local { <2 x float>, float } @_ZN2rw5crossERKNS_3V3dES2_(ptr noundef nonnull align 4 dereferenceable(12), ptr noundef nonnull align 4 dereferenceable(12)) #2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN2rw6Matrix6lookAtERKNS_3V3dES3_(ptr noundef nonnull align 4 dereferenceable(64) %0, ptr noundef nonnull align 4 dereferenceable(12) %1, ptr noundef nonnull align 4 dereferenceable(12) %2) #2 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca %"struct.rw::V3d", align 4
  %8 = alloca { <2 x float>, float }, align 8
  %9 = alloca %"struct.rw::V3d", align 4
  %10 = alloca %"struct.rw::V3d", align 4
  %11 = alloca { <2 x float>, float }, align 8
  %12 = alloca { <2 x float>, float }, align 8
  %13 = alloca %"struct.rw::V3d", align 4
  %14 = alloca { <2 x float>, float }, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %15 = load ptr, ptr %4, align 8
  call void @llvm.lifetime.start.p0(i64 12, ptr %7) #4
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = call { <2 x float>, float } @_ZN2rw9normalizeERKNS_3V3dE(ptr noundef nonnull align 4 dereferenceable(12) %16)
  store { <2 x float>, float } %17, ptr %8, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %7, ptr align 8 %8, i64 12, i1 false)
  %18 = getelementptr inbounds %"struct.rw::Matrix", ptr %15, i32 0, i32 4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %18, ptr align 4 %7, i64 12, i1 false), !tbaa.struct !9
  call void @llvm.lifetime.end.p0(i64 12, ptr %7) #4
  call void @llvm.lifetime.start.p0(i64 12, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 12, ptr %10) #4
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = getelementptr inbounds %"struct.rw::Matrix", ptr %15, i32 0, i32 4
  %21 = call { <2 x float>, float } @_ZN2rw5crossERKNS_3V3dES2_(ptr noundef nonnull align 4 dereferenceable(12) %19, ptr noundef nonnull align 4 dereferenceable(12) %20)
  store { <2 x float>, float } %21, ptr %11, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %10, ptr align 8 %11, i64 12, i1 false)
  %22 = call { <2 x float>, float } @_ZN2rw9normalizeERKNS_3V3dE(ptr noundef nonnull align 4 dereferenceable(12) %10)
  store { <2 x float>, float } %22, ptr %12, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %9, ptr align 8 %12, i64 12, i1 false)
  %23 = getelementptr inbounds %"struct.rw::Matrix", ptr %15, i32 0, i32 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %23, ptr align 4 %9, i64 12, i1 false), !tbaa.struct !9
  call void @llvm.lifetime.end.p0(i64 12, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 12, ptr %9) #4
  call void @llvm.lifetime.start.p0(i64 12, ptr %13) #4
  %24 = getelementptr inbounds %"struct.rw::Matrix", ptr %15, i32 0, i32 4
  %25 = getelementptr inbounds %"struct.rw::Matrix", ptr %15, i32 0, i32 0
  %26 = call { <2 x float>, float } @_ZN2rw5crossERKNS_3V3dES2_(ptr noundef nonnull align 4 dereferenceable(12) %24, ptr noundef nonnull align 4 dereferenceable(12) %25)
  store { <2 x float>, float } %26, ptr %14, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %13, ptr align 8 %14, i64 12, i1 false)
  %27 = getelementptr inbounds %"struct.rw::Matrix", ptr %15, i32 0, i32 2
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %27, ptr align 4 %13, i64 12, i1 false), !tbaa.struct !9
  call void @llvm.lifetime.end.p0(i64 12, ptr %13) #4
  %28 = getelementptr inbounds %"struct.rw::Matrix", ptr %15, i32 0, i32 1
  store i32 3, ptr %28, align 4, !tbaa !12
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local { <2 x float>, float } @_ZN2rw9normalizeERKNS_3V3dE(ptr noundef nonnull align 4 dereferenceable(12)) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree 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 = { inlinehint 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 #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 = !{i64 0, i64 4, !10, i64 4, i64 4, !10, i64 8, i64 4, !10}
!10 = !{!11, !11, i64 0}
!11 = !{!"float", !7, i64 0}
!12 = !{!13, !15, i64 12}
!13 = !{!"_ZTSN2rw6MatrixE", !14, i64 0, !15, i64 12, !14, i64 16, !15, i64 28, !14, i64 32, !15, i64 44, !14, i64 48, !15, i64 60}
!14 = !{!"_ZTSN2rw3V3dE", !11, i64 0, !11, i64 4, !11, i64 8}
!15 = !{!"int", !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.rw::V3d" = 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 uwtable
declare dso_local { <2 x float>, float } @_ZN2rw5crossERKNS_3V3dES2_(ptr noundef nonnull align 4 dereferenceable(12), ptr noundef nonnull align 4 dereferenceable(12)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN2rw6Matrix6lookAtERKNS_3V3dES3_(ptr noundef nonnull align 4 dereferenceable(64) %0, ptr noundef nonnull align 4 dereferenceable(12) %1, ptr noundef nonnull align 4 dereferenceable(12) %2) local_unnamed_addr #1 align 2 {
  %4 = alloca %"struct.rw::V3d", align 8
  %5 = tail call { <2 x float>, float } @_ZN2rw9normalizeERKNS_3V3dE(ptr noundef nonnull align 4 dereferenceable(12) %1)
  %.fca.0.extract12 = extractvalue { <2 x float>, float } %5, 0
  %.fca.1.extract13 = extractvalue { <2 x float>, float } %5, 1
  %6 = getelementptr inbounds i8, ptr %0, i64 32
  store <2 x float> %.fca.0.extract12, ptr %6, align 4
  %.sroa.417.0..sroa_idx = getelementptr inbounds i8, ptr %0, i64 40
  store float %.fca.1.extract13, ptr %.sroa.417.0..sroa_idx, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %4) #3
  %7 = tail call { <2 x float>, float } @_ZN2rw5crossERKNS_3V3dES2_(ptr noundef nonnull align 4 dereferenceable(12) %2, ptr noundef nonnull align 4 dereferenceable(12) %6)
  %.fca.0.extract6 = extractvalue { <2 x float>, float } %7, 0
  %.fca.1.extract7 = extractvalue { <2 x float>, float } %7, 1
  store <2 x float> %.fca.0.extract6, ptr %4, align 8
  %.sroa.29.0..sroa_idx = getelementptr inbounds i8, ptr %4, i64 8
  store float %.fca.1.extract7, ptr %.sroa.29.0..sroa_idx, align 8
  %8 = call { <2 x float>, float } @_ZN2rw9normalizeERKNS_3V3dE(ptr noundef nonnull align 4 dereferenceable(12) %4)
  %.fca.0.extract2 = extractvalue { <2 x float>, float } %8, 0
  %.fca.1.extract3 = extractvalue { <2 x float>, float } %8, 1
  store <2 x float> %.fca.0.extract2, ptr %0, align 4
  %.sroa.411.0..sroa_idx = getelementptr inbounds i8, ptr %0, i64 8
  store float %.fca.1.extract3, ptr %.sroa.411.0..sroa_idx, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %4) #3
  %9 = call { <2 x float>, float } @_ZN2rw5crossERKNS_3V3dES2_(ptr noundef nonnull align 4 dereferenceable(12) %6, ptr noundef nonnull align 4 dereferenceable(12) %0)
  %.fca.0.extract = extractvalue { <2 x float>, float } %9, 0
  %.fca.1.extract = extractvalue { <2 x float>, float } %9, 1
  %10 = getelementptr inbounds i8, ptr %0, i64 16
  store <2 x float> %.fca.0.extract, ptr %10, align 4
  %.sroa.4.0..sroa_idx = getelementptr inbounds i8, ptr %0, i64 24
  store float %.fca.1.extract, ptr %.sroa.4.0..sroa_idx, align 4, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %0, i64 12
  store i32 3, ptr %11, align 4, !tbaa !9
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local { <2 x float>, float } @_ZN2rw9normalizeERKNS_3V3dE(ptr noundef nonnull align 4 dereferenceable(12)) local_unnamed_addr #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 = { inlinehint 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 = { 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"}
!9 = !{!10, !12, i64 12}
!10 = !{!"_ZTSN2rw6MatrixE", !11, i64 0, !12, i64 12, !11, i64 16, !12, i64 28, !11, i64 32, !12, i64 44, !11, i64 48, !12, i64 60}
!11 = !{!"_ZTSN2rw3V3dE", !6, i64 0, !6, i64 4, !6, i64 8}
!12 = !{!"int", !7, i64 0}


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