; LLVM IR from MostafaTwfiq/C-DataStructures-And-Algorithms :: Unit Test/Tests/DataStructuresTests/StacksTest/StackTest (StackTest)

; 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.ErrorTestStruct = type { i32 }
%struct.Stack = type { ptr, i32, i32, ptr }

@.str = external hidden unnamed_addr constant [147 x i8], align 1
@ERROR_TEST = external dso_local global ptr, align 8

; Function Attrs: nounwind uwtable
declare dso_local ptr @generateIntPointerST(i32 noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

declare ptr @stackInitialization(ptr noundef) #3

declare void @CuAssertIntEquals_LineMsg(ptr noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, i32 noundef) #3

; Function Attrs: nounwind
declare void @free(ptr noundef) #4

declare void @destroyStack(ptr noundef) #3

; Function Attrs: nounwind uwtable
define dso_local void @testStackAddAll(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  %7 = call ptr @stackInitialization(ptr noundef @free)
  store ptr %7, ptr %3, align 8, !tbaa !5
  call void @stackAddAll(ptr noundef null, ptr noundef null, i32 noundef 0)
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.ErrorTestStruct, ptr %9, i32 0, i32 0
  %11 = load i32, ptr %10, align 4, !tbaa !9
  call void @CuAssertIntEquals_LineMsg(ptr noundef %8, ptr noundef @.str, i32 noundef 102, ptr noundef null, i32 noundef -83386157, i32 noundef %11)
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  call void @stackAddAll(ptr noundef %12, ptr noundef null, i32 noundef 0)
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.ErrorTestStruct, ptr %14, i32 0, i32 0
  %16 = load i32, ptr %15, align 4, !tbaa !9
  call void @CuAssertIntEquals_LineMsg(ptr noundef %13, ptr noundef @.str, i32 noundef 105, ptr noundef null, i32 noundef -83384987, i32 noundef %16)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %17 = call noalias ptr @malloc(i64 noundef 40) #6
  store ptr %17, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  store i32 0, ptr %5, align 4, !tbaa !12
  br label %18

18:                                               ; preds = %30, %1
  %19 = load i32, ptr %5, align 4, !tbaa !12
  %20 = icmp slt i32 %19, 5
  br i1 %20, label %22, label %21

21:                                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  br label %33

22:                                               ; preds = %18
  %23 = load i32, ptr %5, align 4, !tbaa !12
  %24 = add nsw i32 %23, 1
  %25 = call ptr @generateIntPointerST(i32 noundef %24)
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = load i32, ptr %5, align 4, !tbaa !12
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds ptr, ptr %26, i64 %28
  store ptr %25, ptr %29, align 8, !tbaa !5
  br label %30

30:                                               ; preds = %22
  %31 = load i32, ptr %5, align 4, !tbaa !12
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr %5, align 4, !tbaa !12
  br label %18, !llvm.loop !13

33:                                               ; preds = %21
  %34 = load ptr, ptr %3, align 8, !tbaa !5
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  call void @stackAddAll(ptr noundef %34, ptr noundef %35, i32 noundef 5)
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !12
  br label %36

36:                                               ; preds = %56, %33
  %37 = load i32, ptr %6, align 4, !tbaa !12
  %38 = load ptr, ptr %3, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.Stack, ptr %38, i32 0, i32 2
  %40 = load i32, ptr %39, align 4, !tbaa !15
  %41 = add nsw i32 %40, 1
  %42 = icmp slt i32 %37, %41
  br i1 %42, label %44, label %43

43:                                               ; preds = %36
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  br label %59

44:                                               ; preds = %36
  %45 = load ptr, ptr %2, align 8, !tbaa !5
  %46 = load i32, ptr %6, align 4, !tbaa !12
  %47 = add nsw i32 %46, 1
  %48 = load ptr, ptr %3, align 8, !tbaa !5
  %49 = getelementptr inbounds %struct.Stack, ptr %48, i32 0, i32 0
  %50 = load ptr, ptr %49, align 8, !tbaa !17
  %51 = load i32, ptr %6, align 4, !tbaa !12
  %52 = sext i32 %51 to i64
  %53 = getelementptr inbounds ptr, ptr %50, i64 %52
  %54 = load ptr, ptr %53, align 8, !tbaa !5
  %55 = load i32, ptr %54, align 4, !tbaa !12
  call void @CuAssertIntEquals_LineMsg(ptr noundef %45, ptr noundef @.str, i32 noundef 114, ptr noundef null, i32 noundef %47, i32 noundef %55)
  br label %56

56:                                               ; preds = %44
  %57 = load i32, ptr %6, align 4, !tbaa !12
  %58 = add nsw i32 %57, 1
  store i32 %58, ptr %6, align 4, !tbaa !12
  br label %36, !llvm.loop !18

59:                                               ; preds = %43
  %60 = load ptr, ptr %4, align 8, !tbaa !5
  call void @free(ptr noundef %60) #5
  %61 = load ptr, ptr %3, align 8, !tbaa !5
  call void @destroyStack(ptr noundef %61)
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  ret void
}

declare void @stackAddAll(ptr noundef, ptr noundef, i32 noundef) #3

attributes #0 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind allocsize(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 = { "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 "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 #5 = { nounwind }
attributes #6 = { nounwind allocsize(0) }

!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/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"ErrorTestStruct", !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = !{!11, !11, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}
!15 = !{!16, !11, i64 12}
!16 = !{!"Stack", !6, i64 0, !11, i64 8, !11, i64 12, !6, i64 16}
!17 = !{!16, !6, i64 0}
!18 = distinct !{!18, !14}


; 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"

@.str = external hidden unnamed_addr constant [147 x i8], align 1
@ERROR_TEST = external dso_local local_unnamed_addr global ptr, align 8

; Function Attrs: nounwind uwtable
declare dso_local ptr @generateIntPointerST(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

declare ptr @stackInitialization(ptr noundef) local_unnamed_addr #2

declare void @CuAssertIntEquals_LineMsg(ptr noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) #3

declare void @destroyStack(ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local void @testStackAddAll(ptr noundef %0) local_unnamed_addr #0 {
  %2 = tail call ptr @stackInitialization(ptr noundef nonnull @free) #4
  tail call void @stackAddAll(ptr noundef null, ptr noundef null, i32 noundef 0) #4
  %3 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %4 = load i32, ptr %3, align 4, !tbaa !9
  tail call void @CuAssertIntEquals_LineMsg(ptr noundef %0, ptr noundef nonnull @.str, i32 noundef 102, ptr noundef null, i32 noundef -83386157, i32 noundef %4) #4
  tail call void @stackAddAll(ptr noundef %2, ptr noundef null, i32 noundef 0) #4
  %5 = load ptr, ptr @ERROR_TEST, align 8, !tbaa !5
  %6 = load i32, ptr %5, align 4, !tbaa !9
  tail call void @CuAssertIntEquals_LineMsg(ptr noundef %0, ptr noundef nonnull @.str, i32 noundef 105, ptr noundef null, i32 noundef -83384987, i32 noundef %6) #4
  %7 = tail call noalias dereferenceable_or_null(40) ptr @malloc(i64 noundef 40) #5
  %8 = tail call ptr @generateIntPointerST(i32 noundef 1)
  store ptr %8, ptr %7, align 8, !tbaa !5
  %9 = tail call ptr @generateIntPointerST(i32 noundef 2)
  %10 = getelementptr inbounds i8, ptr %7, i64 8
  store ptr %9, ptr %10, align 8, !tbaa !5
  %11 = tail call ptr @generateIntPointerST(i32 noundef 3)
  %12 = getelementptr inbounds i8, ptr %7, i64 16
  store ptr %11, ptr %12, align 8, !tbaa !5
  %13 = tail call ptr @generateIntPointerST(i32 noundef 4)
  %14 = getelementptr inbounds i8, ptr %7, i64 24
  store ptr %13, ptr %14, align 8, !tbaa !5
  %15 = tail call ptr @generateIntPointerST(i32 noundef 5)
  %16 = getelementptr inbounds i8, ptr %7, i64 32
  store ptr %15, ptr %16, align 8, !tbaa !5
  tail call void @stackAddAll(ptr noundef %2, ptr noundef nonnull %7, i32 noundef 5) #4
  %17 = getelementptr inbounds i8, ptr %2, i64 12
  %18 = load i32, ptr %17, align 4, !tbaa !12
  %.not20 = icmp slt i32 %18, 0
  br i1 %.not20, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %1
  tail call void @free(ptr noundef %7) #4
  tail call void @destroyStack(ptr noundef nonnull %2) #4
  ret void

.lr.ph:                                           ; preds = %1, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %1 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %19 = load ptr, ptr %2, align 8, !tbaa !14
  %20 = getelementptr inbounds ptr, ptr %19, i64 %indvars.iv
  %21 = load ptr, ptr %20, align 8, !tbaa !5
  %22 = load i32, ptr %21, align 4, !tbaa !15
  %23 = trunc nuw nsw i64 %indvars.iv.next to i32
  tail call void @CuAssertIntEquals_LineMsg(ptr noundef %0, ptr noundef nonnull @.str, i32 noundef 114, ptr noundef null, i32 noundef %23, i32 noundef %22) #4
  %24 = load i32, ptr %17, align 4, !tbaa !12
  %25 = sext i32 %24 to i64
  %.not.not = icmp slt i64 %indvars.iv, %25
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !16
}

declare void @stackAddAll(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #2

attributes #0 = { 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 nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { "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 nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 }
attributes #5 = { nounwind allocsize(0) }

!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/C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"ErrorTestStruct", !11, i64 0}
!11 = !{!"int", !7, i64 0}
!12 = !{!13, !11, i64 12}
!13 = !{!"Stack", !6, i64 0, !11, i64 8, !11, i64 12, !6, i64 16}
!14 = !{!13, !6, i64 0}
!15 = !{!11, !11, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


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