; LLVM IR from shellphish/how2heap :: glibc_2.27 (tcache_poisoning)

; 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"

@stdin = external global ptr, align 8
@stdout = external global ptr, align 8
@.str = external hidden unnamed_addr constant [210 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [194 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [47 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [23 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [24 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [39 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [112 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [33 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [28 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [83 x i8], align 1
@__PRETTY_FUNCTION__.main = external hidden unnamed_addr constant [11 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  store i32 0, ptr %1, align 4
  %6 = load ptr, ptr @stdin, align 8, !tbaa !5
  call void @setbuf(ptr noundef %6, ptr noundef null) #6
  %7 = load ptr, ptr @stdout, align 8, !tbaa !5
  call void @setbuf(ptr noundef %7, ptr noundef null) #6
  %8 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  %9 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  %10 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, ptr noundef %2)
  %11 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  %12 = call noalias ptr @malloc(i64 noundef 128) #7
  store ptr %12, ptr %3, align 8, !tbaa !5
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = call i32 (ptr, ...) @printf(ptr noundef @.str.4, ptr noundef %13)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  %15 = call noalias ptr @malloc(i64 noundef 128) #7
  store ptr %15, ptr %4, align 8, !tbaa !5
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = call i32 (ptr, ...) @printf(ptr noundef @.str.4, ptr noundef %16)
  %18 = call i32 (ptr, ...) @printf(ptr noundef @.str.5)
  %19 = load ptr, ptr %3, align 8, !tbaa !5
  call void @free(ptr noundef %19) #6
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  call void @free(ptr noundef %20) #6
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = call i32 (ptr, ...) @printf(ptr noundef @.str.6, ptr noundef %21, ptr noundef %22)
  %24 = load ptr, ptr %4, align 8, !tbaa !5
  %25 = call i32 (ptr, ...) @printf(ptr noundef @.str.7, i64 noundef 8, ptr noundef %24, ptr noundef %2)
  %26 = ptrtoint ptr %2 to i64
  %27 = load ptr, ptr %4, align 8, !tbaa !5
  %28 = getelementptr inbounds i64, ptr %27, i64 0
  store i64 %26, ptr %28, align 8, !tbaa !9
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = call i32 (ptr, ...) @printf(ptr noundef @.str.6, ptr noundef %29, ptr noundef %2)
  %31 = call noalias ptr @malloc(i64 noundef 128) #7
  %32 = call i32 (ptr, ...) @printf(ptr noundef @.str.8, ptr noundef %31)
  %33 = call i32 (ptr, ...) @printf(ptr noundef @.str.9, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #6
  %34 = call noalias ptr @malloc(i64 noundef 128) #7
  store ptr %34, ptr %5, align 8, !tbaa !5
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = call i32 (ptr, ...) @printf(ptr noundef @.str.10, ptr noundef %35)
  %37 = call i32 (ptr, ...) @printf(ptr noundef @.str.11)
  %38 = ptrtoint ptr %2 to i64
  %39 = load ptr, ptr %5, align 8, !tbaa !5
  %40 = ptrtoint ptr %39 to i64
  %41 = icmp eq i64 %38, %40
  br i1 %41, label %42, label %43

42:                                               ; preds = %0
  br label %44

43:                                               ; preds = %0
  call void @__assert_fail(ptr noundef @.str.12, ptr noundef @.str.13, i32 noundef 44, ptr noundef @__PRETTY_FUNCTION__.main) #8
  unreachable

44:                                               ; preds = %42
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  ret i32 0
}

; Function Attrs: nounwind
declare void @setbuf(ptr noundef, ptr noundef) #1

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #4

; Function Attrs: nounwind
declare void @free(ptr noundef) #1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #5

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { 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 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 #5 = { 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 #6 = { nounwind }
attributes #7 = { nounwind allocsize(0) }
attributes #8 = { 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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !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"

@stdin = external local_unnamed_addr global ptr, align 8
@stdout = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [210 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [194 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [47 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [23 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [17 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [24 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [39 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [112 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [33 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [21 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.12 = external hidden unnamed_addr constant [28 x i8], align 1
@.str.13 = external hidden unnamed_addr constant [83 x i8], align 1
@__PRETTY_FUNCTION__.main = external hidden unnamed_addr constant [11 x i8], align 1

; Function Attrs: noreturn nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = load ptr, ptr @stdin, align 8, !tbaa !5
  tail call void @setbuf(ptr noundef %2, ptr noundef null) #6
  %3 = load ptr, ptr @stdout, align 8, !tbaa !5
  tail call void @setbuf(ptr noundef %3, ptr noundef null) #6
  %4 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %5 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %6 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, ptr noundef nonnull %1)
  %7 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  %8 = call noalias dereferenceable_or_null(128) ptr @malloc(i64 noundef 128) #7
  %9 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4, ptr noundef %8)
  %10 = call noalias dereferenceable_or_null(128) ptr @malloc(i64 noundef 128) #7
  %11 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4, ptr noundef %10)
  %12 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.5)
  call void @free(ptr noundef %8) #6
  call void @free(ptr noundef %10) #6
  %13 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6, ptr noundef %10, ptr noundef %8)
  %14 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.7, i64 noundef 8, ptr noundef %10, ptr noundef nonnull %1)
  %15 = ptrtoint ptr %1 to i64
  store i64 %15, ptr %10, align 8, !tbaa !9
  %16 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6, ptr noundef nonnull %10, ptr noundef nonnull %1)
  %17 = call noalias dereferenceable_or_null(128) ptr @malloc(i64 noundef 128) #7
  %18 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.8, ptr noundef %17)
  %19 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.9, ptr noundef nonnull %1)
  %20 = call noalias dereferenceable_or_null(128) ptr @malloc(i64 noundef 128) #7
  %21 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.10, ptr noundef %20)
  %22 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.11)
  call void @__assert_fail(ptr noundef nonnull @.str.12, ptr noundef nonnull @.str.13, i32 noundef 44, ptr noundef nonnull @__PRETTY_FUNCTION__.main) #8
  unreachable
}

; Function Attrs: nofree nounwind
declare void @setbuf(ptr nocapture noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #4

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #5

attributes #0 = { noreturn 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 = { nofree 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { 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 #5 = { 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 #6 = { nounwind }
attributes #7 = { nounwind allocsize(0) }
attributes #8 = { 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, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass