; LLVM IR from romerojosh/zefr :: src/funcs.ll (Z14identityMatrixj)

; 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.mdvector = type <{ i32, [4 x i8], i64, i64, %"struct.std::array", %"struct.std::array", %"class.std::vector.6", ptr, i8, [7 x i8] }>
%"struct.std::array" = type { [6 x i32] }
%"class.std::vector.6" = type { %"struct.std::_Vector_base.7" }
%"struct.std::_Vector_base.7" = 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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::initializer_list" = type { ptr, i64 }
%"class.std::allocator.3" = type { i8 }

; 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

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIjEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIjSaIjEEC2ESt16initializer_listIjERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8mdvectorIdEC2ESt6vectorIjSaIjEEdb(ptr noundef nonnull align 8 dereferenceable(105), ptr noundef, double noundef, i1 noundef zeroext) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN8mdvectorIdEclEjj(ptr noundef nonnull align 8 dereferenceable(105), i32 noundef, i32 noundef) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN8mdvectorIdED2Ev(ptr noundef nonnull align 8 dereferenceable(105)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z14identityMatrixj(ptr dead_on_unwind noalias writable sret(%class.mdvector) align 8 %0, i32 noundef %1) #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i1, align 1
  %6 = alloca %"class.std::vector", align 8
  %7 = alloca %"class.std::initializer_list", align 8
  %8 = alloca [2 x i32], align 4
  %9 = alloca %"class.std::allocator.3", align 1
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  store ptr %0, ptr %3, align 8
  store i32 %1, ptr %4, align 4, !tbaa !5
  store i1 false, ptr %5, align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %13 = load i32, ptr %4, align 4, !tbaa !5
  store i32 %13, ptr %8, align 4, !tbaa !5
  %14 = getelementptr inbounds i32, ptr %8, i64 1
  %15 = load i32, ptr %4, align 4, !tbaa !5
  store i32 %15, ptr %14, align 4, !tbaa !5
  %16 = getelementptr inbounds %"class.std::initializer_list", ptr %7, i32 0, i32 0
  store ptr %8, ptr %16, align 8, !tbaa !9
  %17 = getelementptr inbounds %"class.std::initializer_list", ptr %7, i32 0, i32 1
  store i64 2, ptr %17, align 8, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #3
  call void @_ZNSaIjEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #3
  %18 = getelementptr inbounds { ptr, i64 }, ptr %7, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8
  %20 = getelementptr inbounds { ptr, i64 }, ptr %7, i32 0, i32 1
  %21 = load i64, ptr %20, align 8
  invoke void @_ZNSt6vectorIjSaIjEEC2ESt16initializer_listIjERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %6, ptr %19, i64 %21, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %22 unwind label %29

22:                                               ; preds = %2
  invoke void @_ZN8mdvectorIdEC2ESt6vectorIjSaIjEEdb(ptr noundef nonnull align 8 dereferenceable(105) %0, ptr noundef %6, double noundef 0.000000e+00, i1 noundef zeroext false)
          to label %23 unwind label %33

23:                                               ; preds = %22
  call void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #3
  call void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #3
  store i32 0, ptr %12, align 4, !tbaa !5
  br label %24

24:                                               ; preds = %43, %23
  %25 = load i32, ptr %12, align 4, !tbaa !5
  %26 = load i32, ptr %4, align 4, !tbaa !5
  %27 = icmp ult i32 %25, %26
  br i1 %27, label %38, label %28

28:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  br label %50

29:                                               ; preds = %2
  %30 = landingpad { ptr, i32 }
          cleanup
  %31 = extractvalue { ptr, i32 } %30, 0
  store ptr %31, ptr %10, align 8
  %32 = extractvalue { ptr, i32 } %30, 1
  store i32 %32, ptr %11, align 4
  br label %37

33:                                               ; preds = %22
  %34 = landingpad { ptr, i32 }
          cleanup
  %35 = extractvalue { ptr, i32 } %34, 0
  store ptr %35, ptr %10, align 8
  %36 = extractvalue { ptr, i32 } %34, 1
  store i32 %36, ptr %11, align 4
  call void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #3
  br label %37

37:                                               ; preds = %33, %29
  call void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %54

38:                                               ; preds = %24
  %39 = load i32, ptr %12, align 4, !tbaa !5
  %40 = load i32, ptr %12, align 4, !tbaa !5
  %41 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZN8mdvectorIdEclEjj(ptr noundef nonnull align 8 dereferenceable(105) %0, i32 noundef %39, i32 noundef %40)
          to label %42 unwind label %46

42:                                               ; preds = %38
  store double 1.000000e+00, ptr %41, align 8, !tbaa !14
  br label %43

43:                                               ; preds = %42
  %44 = load i32, ptr %12, align 4, !tbaa !5
  %45 = add i32 %44, 1
  store i32 %45, ptr %12, align 4, !tbaa !5
  br label %24, !llvm.loop !16

46:                                               ; preds = %38
  %47 = landingpad { ptr, i32 }
          cleanup
  %48 = extractvalue { ptr, i32 } %47, 0
  store ptr %48, ptr %10, align 8
  %49 = extractvalue { ptr, i32 } %47, 1
  store i32 %49, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #3
  call void @_ZN8mdvectorIdED2Ev(ptr noundef nonnull align 8 dereferenceable(105) %0) #3
  br label %54

50:                                               ; preds = %28
  store i1 true, ptr %5, align 1
  %51 = load i1, ptr %5, align 1
  br i1 %51, label %53, label %52

52:                                               ; preds = %50
  call void @_ZN8mdvectorIdED2Ev(ptr noundef nonnull align 8 dereferenceable(105) %0) #3
  br label %53

53:                                               ; preds = %52, %50
  ret void

54:                                               ; preds = %46, %37
  %55 = load ptr, ptr %10, align 8
  %56 = load i32, ptr %11, align 4
  %57 = insertvalue { ptr, i32 } poison, ptr %55, 0
  %58 = insertvalue { ptr, i32 } %57, i32 %56, 1
  resume { ptr, i32 } %58
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTSSt16initializer_listIjE", !11, i64 0, !12, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!10, !12, i64 8}
!14 = !{!15, !15, i64 0}
!15 = !{!"double", !7, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"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.mdvector = type <{ i32, [4 x i8], i64, i64, %"struct.std::array", %"struct.std::array", %"class.std::vector.6", ptr, i8, [7 x i8] }>
%"struct.std::array" = type { [6 x i32] }
%"class.std::vector.6" = type { %"struct.std::_Vector_base.7" }
%"struct.std::_Vector_base.7" = 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.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.3" = type { i8 }

; 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 i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIjEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIjSaIjEEC2ESt16initializer_listIjERKS0_(ptr noundef nonnull align 8 dereferenceable(24), ptr, i64, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8mdvectorIdEC2ESt6vectorIjSaIjEEdb(ptr noundef nonnull align 8 dereferenceable(105), ptr noundef, double noundef, i1 noundef zeroext) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN8mdvectorIdEclEjj(ptr noundef nonnull align 8 dereferenceable(105), i32 noundef, i32 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z14identityMatrixj(ptr dead_on_unwind noalias writable sret(%class.mdvector) align 8 %0, i32 noundef %1) local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca [2 x i32], align 4
  %5 = alloca %"class.std::allocator.3", align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  store i32 %1, ptr %4, align 4, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %4, i64 4
  store i32 %1, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #3
  call void @_ZNSaIjEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  invoke void @_ZNSt6vectorIjSaIjEEC2ESt16initializer_listIjERKS0_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr nonnull %4, i64 2, ptr noundef nonnull align 1 dereferenceable(1) %5)
          to label %7 unwind label %9

7:                                                ; preds = %2
  invoke void @_ZN8mdvectorIdEC2ESt6vectorIjSaIjEEdb(ptr noundef nonnull align 8 dereferenceable(105) %0, ptr noundef nonnull %3, double noundef 0.000000e+00, i1 noundef zeroext false)
          to label %8 unwind label %11

8:                                                ; preds = %7
  call void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  call void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  %.not = icmp eq i32 %1, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

9:                                                ; preds = %2
  %10 = landingpad { ptr, i32 }
          cleanup
  br label %13

11:                                               ; preds = %7
  %12 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt6vectorIjSaIjEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #3
  br label %13

13:                                               ; preds = %11, %9
  %.pn = phi { ptr, i32 } [ %12, %11 ], [ %10, %9 ]
  call void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %5) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  resume { ptr, i32 } %.pn

.lr.ph:                                           ; preds = %8, %.lr.ph
  %.012 = phi i32 [ %15, %.lr.ph ], [ 0, %8 ]
  %14 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN8mdvectorIdEclEjj(ptr noundef nonnull align 8 dereferenceable(105) %0, i32 noundef %.012, i32 noundef %.012)
  store double 1.000000e+00, ptr %14, align 8, !tbaa !9
  %15 = add nuw i32 %.012, 1
  %exitcond.not = icmp eq i32 %15, %1
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph, %8
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIjED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #1 align 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"="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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"double", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass