; LLVM IR from russellsayshi/CeeBeeServer :: main (read_file_raw)

; 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.27 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.28 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.29 = external hidden unnamed_addr constant [21 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: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

declare void @perror(ptr noundef) #2

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #3

; Function Attrs: nounwind uwtable
define dso_local ptr @read_file_raw(ptr noundef %0, i32 noundef %1, ptr noundef %2) #4 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  %10 = load ptr, ptr %4, align 8, !tbaa !5
  %11 = call noalias ptr @fopen(ptr noundef %10, ptr noundef @.str.27)
  store ptr %11, ptr %7, align 8, !tbaa !5
  %12 = load ptr, ptr %7, align 8, !tbaa !5
  %13 = icmp ne ptr %12, null
  br i1 %13, label %15, label %14

14:                                               ; preds = %3
  call void @perror(ptr noundef @.str.28)
  call void @exit(i32 noundef 1) #6
  unreachable

15:                                               ; preds = %3
  %16 = load ptr, ptr %7, align 8, !tbaa !5
  %17 = call i32 @fseek(ptr noundef %16, i64 noundef 0, i32 noundef 2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #5
  %18 = load ptr, ptr %7, align 8, !tbaa !5
  %19 = call i64 @ftell(ptr noundef %18)
  store i64 %19, ptr %8, align 8, !tbaa !11
  %20 = load i64, ptr %8, align 8, !tbaa !11
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  store i64 %20, ptr %21, align 8, !tbaa !11
  %22 = load ptr, ptr %7, align 8, !tbaa !5
  call void @rewind(ptr noundef %22)
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  %23 = load i64, ptr %8, align 8, !tbaa !11
  %24 = load i32, ptr %5, align 4, !tbaa !9
  %25 = icmp ne i32 %24, 0
  %26 = zext i1 %25 to i64
  %27 = select i1 %25, i32 1, i32 0
  %28 = sext i32 %27 to i64
  %29 = add i64 %23, %28
  %30 = mul i64 1, %29
  %31 = call noalias ptr @malloc(i64 noundef %30) #7
  store ptr %31, ptr %9, align 8, !tbaa !5
  %32 = load ptr, ptr %9, align 8, !tbaa !5
  %33 = icmp eq ptr %32, null
  br i1 %33, label %34, label %35

34:                                               ; preds = %15
  call void @perror(ptr noundef @.str.29)
  call void @exit(i32 noundef 1) #6
  unreachable

35:                                               ; preds = %15
  %36 = load ptr, ptr %9, align 8, !tbaa !5
  %37 = load i64, ptr %8, align 8, !tbaa !11
  %38 = load ptr, ptr %7, align 8, !tbaa !5
  %39 = call i64 @fread(ptr noundef %36, i64 noundef 1, i64 noundef %37, ptr noundef %38)
  %40 = load i32, ptr %5, align 4, !tbaa !9
  %41 = icmp ne i32 %40, 0
  br i1 %41, label %42, label %46

42:                                               ; preds = %35
  %43 = load ptr, ptr %9, align 8, !tbaa !5
  %44 = load i64, ptr %8, align 8, !tbaa !11
  %45 = getelementptr inbounds i8, ptr %43, i64 %44
  store i8 0, ptr %45, align 1, !tbaa !13
  br label %46

46:                                               ; preds = %42, %35
  %47 = load ptr, ptr %7, align 8, !tbaa !5
  %48 = call i32 @fclose(ptr noundef %47)
  %49 = load ptr, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  ret ptr %49
}

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

declare i32 @fseek(ptr noundef, i64 noundef, i32 noundef) #2

declare i64 @ftell(ptr noundef) #2

declare void @rewind(ptr noundef) #2

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

declare i32 @fclose(ptr noundef) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = { 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 = { 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 #5 = { nounwind }
attributes #6 = { noreturn nounwind }
attributes #7 = { 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, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!7, !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.27 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.28 = external hidden unnamed_addr constant [20 x i8], align 1
@.str.29 = external hidden unnamed_addr constant [21 x i8], align 1

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

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

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local noalias noundef ptr @read_file_raw(ptr nocapture noundef readonly %0, i32 noundef %1, ptr nocapture noundef writeonly %2) local_unnamed_addr #3 {
  %4 = tail call noalias ptr @fopen(ptr noundef %0, ptr noundef nonnull @.str.27)
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %5, label %6

5:                                                ; preds = %3
  tail call void @perror(ptr noundef nonnull @.str.28) #4
  tail call void @exit(i32 noundef 1) #5
  unreachable

6:                                                ; preds = %3
  %7 = tail call i32 @fseek(ptr noundef nonnull %4, i64 noundef 0, i32 noundef 2)
  %8 = tail call i64 @ftell(ptr noundef nonnull %4)
  store i64 %8, ptr %2, align 8, !tbaa !5
  tail call void @rewind(ptr noundef nonnull %4)
  %.not18 = icmp ne i32 %1, 0
  %9 = zext i1 %.not18 to i64
  %10 = add i64 %8, %9
  %11 = tail call noalias ptr @malloc(i64 noundef %10) #6
  %12 = icmp eq ptr %11, null
  br i1 %12, label %13, label %14

13:                                               ; preds = %6
  tail call void @perror(ptr noundef nonnull @.str.29) #4
  tail call void @exit(i32 noundef 1) #5
  unreachable

14:                                               ; preds = %6
  %15 = tail call i64 @fread(ptr noundef nonnull %11, i64 noundef 1, i64 noundef %8, ptr noundef nonnull %4)
  br i1 %.not18, label %16, label %18

16:                                               ; preds = %14
  %17 = getelementptr inbounds i8, ptr %11, i64 %8
  store i8 0, ptr %17, align 1, !tbaa !9
  br label %18

18:                                               ; preds = %16, %14
  %19 = tail call i32 @fclose(ptr noundef nonnull %4)
  ret ptr %11
}

; Function Attrs: nofree nounwind
declare noalias noundef ptr @fopen(ptr nocapture noundef readonly, ptr nocapture noundef readonly) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @fseek(ptr nocapture noundef, i64 noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i64 @ftell(ptr nocapture noundef) local_unnamed_addr #1

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

; Function Attrs: nofree nounwind
declare noundef i64 @fread(ptr nocapture noundef, i64 noundef, i64 noundef, ptr nocapture noundef) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noundef i32 @fclose(ptr nocapture noundef) local_unnamed_addr #1

attributes #0 = { 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 #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 = { 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 = { 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 #4 = { cold }
attributes #5 = { noreturn 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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!7, !7, i64 0}


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