; LLVM IR from HarshCasper/NeoAlgo :: C/cp (anagram_program)

; 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"

@.str = external hidden unnamed_addr constant [20 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [35 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [31 x i8], align 1

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca [50 x i8], align 16
  %3 = alloca [50 x i8], align 16
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 50, ptr %2) #4
  call void @llvm.lifetime.start.p0(i64 50, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  %6 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  %7 = getelementptr inbounds [50 x i8], ptr %2, i64 0, i64 0
  %8 = getelementptr inbounds [50 x i8], ptr %3, i64 0, i64 0
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %7, ptr noundef %8)
  %10 = getelementptr inbounds [50 x i8], ptr %2, i64 0, i64 0
  %11 = call i64 @strlen(ptr noundef %10) #5
  %12 = trunc i64 %11 to i32
  store i32 %12, ptr %4, align 4, !tbaa !5
  %13 = getelementptr inbounds [50 x i8], ptr %3, i64 0, i64 0
  %14 = call i64 @strlen(ptr noundef %13) #5
  %15 = trunc i64 %14 to i32
  store i32 %15, ptr %5, align 4, !tbaa !5
  %16 = load i32, ptr %4, align 4, !tbaa !5
  %17 = load i32, ptr %5, align 4, !tbaa !5
  %18 = icmp ne i32 %16, %17
  br i1 %18, label %19, label %21

19:                                               ; preds = %0
  %20 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  br label %34

21:                                               ; preds = %0
  %22 = getelementptr inbounds [50 x i8], ptr %2, i64 0, i64 0
  call void @sort_strings(ptr noundef %22)
  %23 = getelementptr inbounds [50 x i8], ptr %3, i64 0, i64 0
  call void @sort_strings(ptr noundef %23)
  %24 = getelementptr inbounds [50 x i8], ptr %2, i64 0, i64 0
  %25 = getelementptr inbounds [50 x i8], ptr %3, i64 0, i64 0
  %26 = load i32, ptr %4, align 4, !tbaa !5
  %27 = call i32 @check_anagram(ptr noundef %24, ptr noundef %25, i32 noundef %26)
  %28 = icmp eq i32 %27, 0
  br i1 %28, label %29, label %31

29:                                               ; preds = %21
  %30 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  br label %33

31:                                               ; preds = %21
  %32 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  br label %33

33:                                               ; preds = %31, %29
  br label %34

34:                                               ; preds = %33, %19
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 50, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 50, ptr %2) #4
  ret i32 0
}

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

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: nounwind willreturn memory(read)
declare i64 @strlen(ptr 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 = { "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 willreturn memory(read) "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 willreturn memory(read) }

!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/C++ TBAA"}


; 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 [20 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [35 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [31 x i8], align 1

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

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

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

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

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca [50 x i8], align 16
  %2 = alloca [50 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 50, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 50, ptr nonnull %2) #4
  %3 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %5 = call i64 @strlen(ptr noundef nonnull dereferenceable(1) %1) #5
  %6 = trunc i64 %5 to i32
  %7 = call i64 @strlen(ptr noundef nonnull dereferenceable(1) %2) #5
  %8 = trunc i64 %7 to i32
  %.not = icmp eq i32 %6, %8
  br i1 %.not, label %9, label %12

9:                                                ; preds = %0
  call void @sort_strings(ptr noundef nonnull %1)
  call void @sort_strings(ptr noundef nonnull %2)
  %10 = call i32 @check_anagram(ptr noundef nonnull %1, ptr noundef nonnull %2, i32 noundef %6)
  %11 = icmp eq i32 %10, 0
  %.str.3..str.2 = select i1 %11, ptr @.str.3, ptr @.str.2
  br label %12

12:                                               ; preds = %9, %0
  %.str.3.sink = phi ptr [ @.str.2, %0 ], [ %.str.3..str.2, %9 ]
  %13 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) %.str.3.sink)
  call void @llvm.lifetime.end.p0(i64 50, ptr nonnull %2) #4
  call void @llvm.lifetime.end.p0(i64 50, ptr nonnull %1) #4
  ret i32 0
}

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nofree nounwind willreturn memory(argmem: read)
declare i64 @strlen(ptr nocapture noundef) local_unnamed_addr #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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { mustprogress nofree nounwind willreturn memory(argmem: read) "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 willreturn memory(read) }

!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)"}


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