; LLVM IR from achilles288/robot-monitor-graphics :: src/base/camera.ll (ZNK3rmg6Camera11getRotationEv)

; 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::Mat3" = type { %union.anon.1 }
%union.anon.1 = type { [3 x [3 x float]] }
%"struct.rmg::Euler" = type { 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::Vec3" = type { %union.anon.0 }
%union.anon.0 = type { %struct.anon }
%struct.anon = type { float, float, 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

declare void @_ZNK3rmg4Mat37inverseEv(ptr dead_on_unwind writable sret(%"struct.rmg::Mat3") align 4, ptr noundef nonnull align 4 dereferenceable(36)) #2

; Function Attrs: mustprogress uwtable
define dso_local { <2 x float>, float } @_ZNK3rmg6Camera11getRotationEv(ptr noundef nonnull align 4 dereferenceable(264) %0) #3 align 2 {
  %2 = alloca %"struct.rmg::Euler", align 4
  %3 = alloca ptr, align 8
  %4 = alloca %"struct.rmg::Mat3", 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 @llvm.lifetime.start.p0(i64 36, ptr %4) #4
  %7 = getelementptr inbounds %"class.rmg::Camera", ptr %6, i32 0, i32 1
  call void @_ZNK3rmg4Mat37inverseEv(ptr dead_on_unwind writable sret(%"struct.rmg::Mat3") align 4 %4, ptr noundef nonnull align 4 dereferenceable(36) %7)
  call void @_ZN3rmg5EulerC1ERKNS_4Mat3E(ptr noundef nonnull align 4 dereferenceable(12) %2, ptr noundef nonnull align 4 dereferenceable(36) %4)
  call void @llvm.lifetime.end.p0(i64 36, ptr %4) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %5, ptr align 4 %2, i64 12, i1 false)
  %8 = load { <2 x float>, float }, ptr %5, align 8
  ret { <2 x float>, float } %8
}

declare void @_ZN3rmg5EulerC1ERKNS_4Mat3E(ptr noundef nonnull align 4 dereferenceable(12), ptr noundef nonnull align 4 dereferenceable(36)) unnamed_addr #2

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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"}


; 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::Mat3" = type { %union.anon.1 }
%union.anon.1 = type { [3 x [3 x float]] }
%"struct.rmg::Euler" = 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

declare void @_ZNK3rmg4Mat37inverseEv(ptr dead_on_unwind writable sret(%"struct.rmg::Mat3") align 4, ptr noundef nonnull align 4 dereferenceable(36)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
define dso_local { <2 x float>, float } @_ZNK3rmg6Camera11getRotationEv(ptr noundef nonnull align 4 dereferenceable(264) %0) local_unnamed_addr #2 align 2 {
  %2 = alloca %"struct.rmg::Euler", align 8
  %3 = alloca %"struct.rmg::Mat3", align 4
  call void @llvm.lifetime.start.p0(i64 36, ptr nonnull %3) #3
  %4 = getelementptr inbounds i8, ptr %0, i64 12
  call void @_ZNK3rmg4Mat37inverseEv(ptr dead_on_unwind nonnull writable sret(%"struct.rmg::Mat3") align 4 %3, ptr noundef nonnull align 4 dereferenceable(36) %4)
  call void @_ZN3rmg5EulerC1ERKNS_4Mat3E(ptr noundef nonnull align 4 dereferenceable(12) %2, ptr noundef nonnull align 4 dereferenceable(36) %3)
  call void @llvm.lifetime.end.p0(i64 36, ptr nonnull %3) #3
  %.sroa.0.0.copyload = load <2 x float>, ptr %2, align 8
  %.sroa.2.0..sroa_idx = getelementptr inbounds i8, ptr %2, 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 void @_ZN3rmg5EulerC1ERKNS_4Mat3E(ptr noundef nonnull align 4 dereferenceable(12), ptr noundef nonnull align 4 dereferenceable(36)) unnamed_addr #1

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


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