; LLVM IR from chrxh/alien :: source/Base/Math.ll (ZN4Math15rotateClockwiseERK12RealVector2Df)

; 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.RealVector2D = type { float, float }
%"struct.std::array" = type { [2 x %"struct.std::array.0"] }
%"struct.std::array.0" = type { [2 x float] }

; 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 nounwind uwtable
declare dso_local { <2 x float>, <2 x float> } @_ZN4Math18calcRotationMatrixEf(float noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local <2 x float> @_ZN4Math15rotateClockwiseERK12RealVector2Df(ptr noundef nonnull align 4 dereferenceable(8) %0, float noundef %1) #2 align 2 {
  %3 = alloca %struct.RealVector2D, align 4
  %4 = alloca ptr, align 8
  %5 = alloca float, align 4
  %6 = alloca %"struct.std::array", align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store float %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 16, ptr %6) #3
  %7 = load float, ptr %5, align 4, !tbaa !9
  %8 = call { <2 x float>, <2 x float> } @_ZN4Math18calcRotationMatrixEf(float noundef %7)
  %9 = getelementptr inbounds %"struct.std::array", ptr %6, i32 0, i32 0
  %10 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %9, i32 0, i32 0
  %11 = extractvalue { <2 x float>, <2 x float> } %8, 0
  store <2 x float> %11, ptr %10, align 4
  %12 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %9, i32 0, i32 1
  %13 = extractvalue { <2 x float>, <2 x float> } %8, 1
  store <2 x float> %13, ptr %12, align 4
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = call <2 x float> @_ZmlRKSt5arrayIS_IfLm2EELm2EERK12RealVector2D(ptr noundef nonnull align 4 dereferenceable(16) %6, ptr noundef nonnull align 4 dereferenceable(8) %14)
  store <2 x float> %15, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 16, ptr %6) #3
  %16 = load <2 x float>, ptr %3, align 4
  ret <2 x float> %16
}

; Function Attrs: mustprogress uwtable
declare dso_local <2 x float> @_ZmlRKSt5arrayIS_IfLm2EELm2EERK12RealVector2D(ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(8)) #2

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


; 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.std::array" = type { [2 x %"struct.std::array.0"] }
%"struct.std::array.0" = type { [2 x 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 nounwind uwtable
declare dso_local { <2 x float>, <2 x float> } @_ZN4Math18calcRotationMatrixEf(float noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local <2 x float> @_ZN4Math15rotateClockwiseERK12RealVector2Df(ptr noundef nonnull align 4 dereferenceable(8) %0, float noundef %1) local_unnamed_addr #2 align 2 {
  %3 = alloca %"struct.std::array", align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #3
  %4 = tail call { <2 x float>, <2 x float> } @_ZN4Math18calcRotationMatrixEf(float noundef %1)
  %5 = extractvalue { <2 x float>, <2 x float> } %4, 0
  store <2 x float> %5, ptr %3, align 8
  %6 = getelementptr inbounds i8, ptr %3, i64 8
  %7 = extractvalue { <2 x float>, <2 x float> } %4, 1
  store <2 x float> %7, ptr %6, align 8
  %8 = call <2 x float> @_ZmlRKSt5arrayIS_IfLm2EELm2EERK12RealVector2D(ptr noundef nonnull align 4 dereferenceable(16) %3, ptr noundef nonnull align 4 dereferenceable(8) %0)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #3
  ret <2 x float> %8
}

; Function Attrs: mustprogress uwtable
declare dso_local <2 x float> @_ZmlRKSt5arrayIS_IfLm2EELm2EERK12RealVector2D(ptr noundef nonnull align 4 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2

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


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