; LLVM IR from moarseniy/CudaFEMproject :: deprecated/Linal2/src/Linal2.ll (ZN7MyArray19divideByElementwiseES_)

; 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.MyArray = type { i32, ptr }

@.str.5 = external hidden unnamed_addr constant [91 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [33 x i8], align 1
@__PRETTY_FUNCTION__._ZN7MyArray19divideByElementwiseES_ = external hidden unnamed_addr constant [46 x i8], align 1

; 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 noundef i32 @_ZN7MyArray8get_sizeEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZN7MyArrayixEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7MyArray19divideByElementwiseES_(ptr dead_on_unwind noalias writable sret(%class.MyArray) align 8 %0, ptr noundef nonnull align 8 dereferenceable(16) %1, ptr noundef %2) #3 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i1, align 1
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  %9 = load ptr, ptr %5, align 8
  %10 = getelementptr inbounds %class.MyArray, ptr %9, i32 0, i32 0
  %11 = load i32, ptr %10, align 8, !tbaa !9
  %12 = call noundef i32 @_ZN7MyArray8get_sizeEv(ptr noundef nonnull align 8 dereferenceable(16) %2)
  %13 = icmp eq i32 %11, %12
  br i1 %13, label %14, label %15

14:                                               ; preds = %3
  br label %17

15:                                               ; preds = %3
  call void @__assert_fail(ptr noundef @.str.7, ptr noundef @.str.5, i32 noundef 197, ptr noundef @__PRETTY_FUNCTION__._ZN7MyArray19divideByElementwiseES_) #4
  unreachable

16:                                               ; No predecessors!
  br label %17

17:                                               ; preds = %16, %14
  store i1 false, ptr %7, align 1
  %18 = getelementptr inbounds %class.MyArray, ptr %9, i32 0, i32 0
  %19 = load i32, ptr %18, align 8, !tbaa !9
  call void @_ZN7MyArrayC1Ei(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %19)
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #5
  store i32 0, ptr %8, align 4, !tbaa !12
  br label %20

20:                                               ; preds = %39, %17
  %21 = load i32, ptr %8, align 4, !tbaa !12
  %22 = getelementptr inbounds %class.MyArray, ptr %9, i32 0, i32 0
  %23 = load i32, ptr %22, align 8, !tbaa !9
  %24 = icmp slt i32 %21, %23
  br i1 %24, label %26, label %25

25:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #5
  br label %42

26:                                               ; preds = %20
  %27 = getelementptr inbounds %class.MyArray, ptr %9, i32 0, i32 1
  %28 = load ptr, ptr %27, align 8, !tbaa !13
  %29 = load i32, ptr %8, align 4, !tbaa !12
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds float, ptr %28, i64 %30
  %32 = load float, ptr %31, align 4, !tbaa !14
  %33 = load i32, ptr %8, align 4, !tbaa !12
  %34 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN7MyArrayixEi(ptr noundef nonnull align 8 dereferenceable(16) %2, i32 noundef %33)
  %35 = load float, ptr %34, align 4, !tbaa !14
  %36 = fdiv float %32, %35
  %37 = load i32, ptr %8, align 4, !tbaa !12
  %38 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN7MyArrayixEi(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %37)
  store float %36, ptr %38, align 4, !tbaa !14
  br label %39

39:                                               ; preds = %26
  %40 = load i32, ptr %8, align 4, !tbaa !12
  %41 = add nsw i32 %40, 1
  store i32 %41, ptr %8, align 4, !tbaa !12
  br label %20, !llvm.loop !16

42:                                               ; preds = %25
  store i1 true, ptr %7, align 1
  %43 = load i1, ptr %7, align 1
  br i1 %43, label %45, label %44

44:                                               ; preds = %42
  call void @_ZN7MyArrayD1Ev(ptr noundef nonnull align 8 dereferenceable(16) %0) #5
  br label %45

45:                                               ; preds = %44, %42
  ret void
}

declare void @_ZN7MyArrayC1Ei(ptr, i32)

declare void @_ZN7MyArrayD1Ev(ptr)

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 = { noreturn nounwind "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 = { noreturn nounwind }
attributes #5 = { 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, !11, i64 0}
!10 = !{!"_ZTS7MyArray", !11, i64 0, !6, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = !{!10, !6, i64 8}
!14 = !{!15, !15, i64 0}
!15 = !{!"float", !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.MyArray = type { i32, ptr }

@.str.5 = external hidden unnamed_addr constant [91 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [33 x i8], align 1
@__PRETTY_FUNCTION__._ZN7MyArray19divideByElementwiseES_ = external hidden unnamed_addr constant [46 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN7MyArray8get_sizeEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZN7MyArrayixEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7MyArray19divideByElementwiseES_(ptr dead_on_unwind noalias writable sret(%class.MyArray) align 8 %0, ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %1, ptr noundef nonnull %2) local_unnamed_addr #2 align 2 {
  %4 = load i32, ptr %1, align 8, !tbaa !5
  %5 = tail call noundef i32 @_ZN7MyArray8get_sizeEv(ptr noundef nonnull align 8 dereferenceable(16) %2)
  %6 = icmp eq i32 %4, %5
  br i1 %6, label %8, label %7

7:                                                ; preds = %3
  tail call void @__assert_fail(ptr noundef nonnull @.str.7, ptr noundef nonnull @.str.5, i32 noundef 197, ptr noundef nonnull @__PRETTY_FUNCTION__._ZN7MyArray19divideByElementwiseES_) #3
  unreachable

8:                                                ; preds = %3
  %9 = load i32, ptr %1, align 8, !tbaa !5
  tail call void @_ZN7MyArrayC1Ei(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %9)
  %10 = load i32, ptr %1, align 8, !tbaa !5
  %11 = icmp sgt i32 %10, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %8
  %12 = getelementptr inbounds i8, ptr %1, i64 8
  br label %13

13:                                               ; preds = %.lr.ph, %13
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %13 ]
  %14 = load ptr, ptr %12, align 8, !tbaa !11
  %15 = getelementptr inbounds float, ptr %14, i64 %indvars.iv
  %16 = load float, ptr %15, align 4, !tbaa !12
  %17 = trunc nuw nsw i64 %indvars.iv to i32
  %18 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZN7MyArrayixEi(ptr noundef nonnull align 8 dereferenceable(16) %2, i32 noundef %17)
  %19 = load float, ptr %18, align 4, !tbaa !12
  %20 = fdiv float %16, %19
  %21 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZN7MyArrayixEi(ptr noundef nonnull align 8 dereferenceable(16) %0, i32 noundef %17)
  store float %20, ptr %21, align 4, !tbaa !12
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %22 = load i32, ptr %1, align 8, !tbaa !5
  %23 = sext i32 %22 to i64
  %24 = icmp slt i64 %indvars.iv.next, %23
  br i1 %24, label %13, label %._crit_edge, !llvm.loop !14

._crit_edge:                                      ; preds = %13, %8
  ret void
}

declare void @_ZN7MyArrayC1Ei(ptr, i32) local_unnamed_addr

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 = { noreturn nounwind "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 = { noreturn 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 = !{!"_ZTS7MyArray", !7, i64 0, !10, i64 8}
!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 8}
!12 = !{!13, !13, i64 0}
!13 = !{!"float", !8, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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