; LLVM IR from JoshuaSBrown/QC_Tools :: src/libcatnip/matrix.ll (ZNK6catnip6Matrix7get_colEi)

; 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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.catnip::Matrix" = type { i32, i32, i32, ptr }

declare i32 @__gxx_personality_v0(...)

; 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 void @_ZNSt6vectorIdSaIdEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK6catnip6Matrix5indexEiii(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i32 noundef, i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK6catnip6Matrix7get_colEi(ptr dead_on_unwind noalias writable sret(%"class.std::vector") align 8 %0, ptr noundef nonnull align 8 dereferenceable(24) %1, i32 noundef %2) #2 align 2 personality ptr @__gxx_personality_v0 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i1, align 1
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  %11 = load ptr, ptr %5, align 8
  store i1 false, ptr %7, align 1
  call void @_ZNSt6vectorIdSaIdEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 1, ptr %8, align 4, !tbaa !9
  br label %12

12:                                               ; preds = %27, %3
  %13 = load i32, ptr %8, align 4, !tbaa !9
  %14 = getelementptr inbounds %"class.catnip::Matrix", ptr %11, i32 0, i32 0
  %15 = load i32, ptr %14, align 8, !tbaa !11
  %16 = icmp sle i32 %13, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %34

18:                                               ; preds = %12
  %19 = getelementptr inbounds %"class.catnip::Matrix", ptr %11, i32 0, i32 3
  %20 = load ptr, ptr %19, align 8, !tbaa !13
  %21 = load i32, ptr %8, align 4, !tbaa !9
  %22 = load i32, ptr %6, align 4, !tbaa !9
  %23 = call noundef i32 @_ZNK6catnip6Matrix5indexEiii(ptr noundef nonnull align 8 dereferenceable(24) %11, i32 noundef %21, i32 noundef %22, i32 noundef 1)
  %24 = sext i32 %23 to i64
  %25 = getelementptr inbounds double, ptr %20, i64 %24
  invoke void @_ZNSt6vectorIdSaIdEE9push_backERKd(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(8) %25)
          to label %26 unwind label %30

26:                                               ; preds = %18
  br label %27

27:                                               ; preds = %26
  %28 = load i32, ptr %8, align 4, !tbaa !9
  %29 = add nsw i32 %28, 1
  store i32 %29, ptr %8, align 4, !tbaa !9
  br label %12, !llvm.loop !14

30:                                               ; preds = %18
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %9, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @_ZNSt6vectorIdSaIdEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %38

34:                                               ; preds = %17
  store i1 true, ptr %7, align 1
  %35 = load i1, ptr %7, align 1
  br i1 %35, label %37, label %36

36:                                               ; preds = %34
  call void @_ZNSt6vectorIdSaIdEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #3
  br label %37

37:                                               ; preds = %36, %34
  ret void

38:                                               ; preds = %30
  %39 = load ptr, ptr %9, align 8
  %40 = load i32, ptr %10, align 4
  %41 = insertvalue { ptr, i32 } poison, ptr %39, 0
  %42 = insertvalue { ptr, i32 } %41, i32 %40, 1
  resume { ptr, i32 } %42
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE9push_backERKd(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) #2 align 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"="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)"}
!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 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTSN6catnip6MatrixE", !10, i64 0, !10, i64 4, !10, i64 8, !6, i64 16}
!13 = !{!12, !6, i64 16}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; 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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl" = type { %"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" }
%"struct.std::_Vector_base<double, std::allocator<double>>::_Vector_impl_data" = type { ptr, ptr, ptr }

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZNK6catnip6Matrix5indexEiii(ptr noundef nonnull align 8 dereferenceable(24), i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK6catnip6Matrix7get_colEi(ptr dead_on_unwind noalias nonnull writable sret(%"class.std::vector") align 8 %0, ptr noundef nonnull align 8 dereferenceable(24) %1, i32 noundef %2) local_unnamed_addr #1 align 2 personality ptr @__gxx_personality_v0 {
  tail call void @_ZNSt6vectorIdSaIdEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #2
  %4 = load i32, ptr %1, align 8, !tbaa !5
  %.not7 = icmp slt i32 %4, 1
  br i1 %.not7, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3
  %5 = getelementptr inbounds i8, ptr %1, i64 16
  br label %6

6:                                                ; preds = %.lr.ph, %11
  %.08 = phi i32 [ 1, %.lr.ph ], [ %12, %11 ]
  %7 = load ptr, ptr %5, align 8, !tbaa !11
  %8 = tail call noundef i32 @_ZNK6catnip6Matrix5indexEiii(ptr noundef nonnull align 8 dereferenceable(24) %1, i32 noundef %.08, i32 noundef %2, i32 noundef 1)
  %9 = sext i32 %8 to i64
  %10 = getelementptr inbounds double, ptr %7, i64 %9
  invoke void @_ZNSt6vectorIdSaIdEE9push_backERKd(ptr noundef nonnull align 8 dereferenceable(24) %0, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %11 unwind label %14

11:                                               ; preds = %6
  %12 = add nuw nsw i32 %.08, 1
  %13 = load i32, ptr %1, align 8, !tbaa !5
  %.not.not = icmp slt i32 %.08, %13
  br i1 %.not.not, label %6, label %._crit_edge, !llvm.loop !12

14:                                               ; preds = %6
  %15 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZNSt6vectorIdSaIdEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %0) #2
  resume { ptr, i32 } %15

._crit_edge:                                      ; preds = %11, %3
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIdSaIdEE9push_backERKd(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #1 align 2

attributes #0 = { 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 #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, !7, i64 0}
!6 = !{!"_ZTSN6catnip6MatrixE", !7, i64 0, !7, i64 4, !7, i64 8, !10, i64 16}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 16}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass