; LLVM IR from AngoraFuzzer/Angora :: tests/memcmp (memcmp)

; 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 [3 x i8], align 1
@__const.main.b = external hidden unnamed_addr constant [10 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca [255 x i8], align 16
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca [10 x i8], align 1
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  %12 = load i32, ptr %4, align 4, !tbaa !5
  %13 = icmp slt i32 %12, 2
  br i1 %13, label %14, label %15

14:                                               ; preds = %2
  store i32 0, ptr %3, align 4
  br label %45

15:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  call void @llvm.lifetime.start.p0(i64 255, ptr %7) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  %16 = load ptr, ptr %5, align 8, !tbaa !9
  %17 = getelementptr inbounds ptr, ptr %16, i64 1
  %18 = load ptr, ptr %17, align 8, !tbaa !9
  %19 = call noalias ptr @fopen(ptr noundef %18, ptr noundef @.str)
  store ptr %19, ptr %6, align 8, !tbaa !9
  %20 = load ptr, ptr %6, align 8, !tbaa !9
  %21 = icmp ne ptr %20, null
  br i1 %21, label %23, label %22

22:                                               ; preds = %15
  store i32 0, ptr %3, align 4
  store i32 1, ptr %9, align 4
  br label %44

23:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #6
  store i32 20, ptr %10, align 4, !tbaa !5
  %24 = getelementptr inbounds [255 x i8], ptr %7, i64 0, i64 0
  %25 = load i32, ptr %10, align 4, !tbaa !5
  %26 = sext i32 %25 to i64
  %27 = load ptr, ptr %6, align 8, !tbaa !9
  %28 = call i64 @fread(ptr noundef %24, i64 noundef 1, i64 noundef %26, ptr noundef %27)
  store i64 %28, ptr %8, align 8, !tbaa !11
  %29 = load ptr, ptr %6, align 8, !tbaa !9
  %30 = call i32 @fclose(ptr noundef %29)
  %31 = load i64, ptr %8, align 8, !tbaa !11
  %32 = load i32, ptr %10, align 4, !tbaa !5
  %33 = sext i32 %32 to i64
  %34 = icmp ult i64 %31, %33
  br i1 %34, label %35, label %36

35:                                               ; preds = %23
  store i32 0, ptr %3, align 4
  store i32 1, ptr %9, align 4
  br label %43

36:                                               ; preds = %23
  call void @llvm.lifetime.start.p0(i64 10, ptr %11) #6
  call void @llvm.memcpy.p0.p0.i64(ptr align 1 %11, ptr align 1 @__const.main.b, i64 10, i1 false)
  %37 = getelementptr inbounds [10 x i8], ptr %11, i64 0, i64 0
  %38 = getelementptr inbounds [255 x i8], ptr %7, i64 0, i64 0
  %39 = call i32 @memcmp(ptr noundef %37, ptr noundef %38, i64 noundef 9) #7
  %40 = icmp eq i32 %39, 0
  br i1 %40, label %41, label %42

41:                                               ; preds = %36
  call void @abort() #8
  unreachable

42:                                               ; preds = %36
  store i32 0, ptr %3, align 4
  store i32 1, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 10, ptr %11) #6
  br label %43

43:                                               ; preds = %42, %35
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #6
  br label %44

44:                                               ; preds = %43, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 255, ptr %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  br label %45

45:                                               ; preds = %44, %14
  %46 = load i32, ptr %3, align 4
  ret i32 %46
}

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

declare noalias ptr @fopen(ptr noundef, ptr noundef) #2

declare i64 @fread(ptr noundef, i64 noundef, i64 noundef, ptr noundef) #2

declare i32 @fclose(ptr noundef) #2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: nounwind willreturn memory(read)
declare i32 @memcmp(ptr noundef, ptr noundef, i64 noundef) #4

; Function Attrs: noreturn nounwind
declare void @abort() #5

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

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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 #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 willreturn memory(read) }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"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"

@.str = external hidden unnamed_addr constant [3 x i8], align 1
@__const.main.b = external hidden unnamed_addr constant [10 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = alloca [255 x i8], align 16
  %4 = icmp slt i32 %0, 2
  br i1 %4, label %17, label %5

5:                                                ; preds = %2
  call void @llvm.lifetime.start.p0(i64 255, ptr nonnull %3) #5
  %6 = getelementptr inbounds i8, ptr %1, i64 8
  %7 = load ptr, ptr %6, align 8, !tbaa !5
  %8 = tail call noalias ptr @fopen(ptr noundef %7, ptr noundef nonnull @.str)
  %.not = icmp eq ptr %8, null
  br i1 %.not, label %16, label %9

9:                                                ; preds = %5
  %10 = call i64 @fread(ptr noundef nonnull %3, i64 noundef 1, i64 noundef 20, ptr noundef nonnull %8)
  %11 = tail call i32 @fclose(ptr noundef nonnull %8)
  %12 = icmp ult i64 %10, 20
  br i1 %12, label %16, label %13

13:                                               ; preds = %9
  %bcmp = call i32 @bcmp(ptr noundef nonnull dereferenceable(9) @__const.main.b, ptr noundef nonnull dereferenceable(9) %3, i64 9)
  %14 = icmp eq i32 %bcmp, 0
  br i1 %14, label %15, label %16

15:                                               ; preds = %13
  tail call void @abort() #6
  unreachable

16:                                               ; preds = %9, %13, %5
  call void @llvm.lifetime.end.p0(i64 255, ptr nonnull %3) #5
  br label %17

17:                                               ; preds = %2, %16
  ret i32 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: nofree nounwind
declare noalias noundef ptr @fopen(ptr nocapture noundef readonly, ptr nocapture noundef readonly) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i64 @fread(ptr nocapture noundef, i64 noundef, i64 noundef, ptr nocapture noundef) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @fclose(ptr nocapture noundef) local_unnamed_addr #2

; Function Attrs: noreturn nounwind
declare void @abort() local_unnamed_addr #3

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

; Function Attrs: nofree nounwind willreturn memory(argmem: read)
declare i32 @bcmp(ptr nocapture, ptr nocapture, i64) local_unnamed_addr #4

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 = { 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 #4 = { nofree nounwind willreturn memory(argmem: read) }
attributes #5 = { nounwind }
attributes #6 = { 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"}


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