; LLVM IR from guanzhi/GmSSL :: src (file)

; 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.stat = type { i64, i64, i64, i32, i32, i32, i32, i64, i64, i64, i64, %struct.timespec, %struct.timespec, %struct.timespec, [3 x i64] }
%struct.timespec = type { i64, i64 }

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [58 x i8], align 1
@__FUNCTION__.file_size = external hidden unnamed_addr constant [10 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @file_size(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %struct.stat, align 8
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  call void @llvm.lifetime.start.p0(i64 144, ptr %7) #3
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = call i32 @fileno(ptr noundef %9) #3
  store i32 %10, ptr %6, align 4, !tbaa !9
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = call i32 @fstat(i32 noundef %11, ptr noundef %7) #3
  %13 = icmp slt i32 %12, 0
  br i1 %13, label %14, label %20

14:                                               ; preds = %2
  br label %15

15:                                               ; preds = %14
  %16 = load ptr, ptr @stderr, align 8, !tbaa !5
  %17 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %16, ptr noundef @.str, ptr noundef @.str.1, i32 noundef 30, ptr noundef @__FUNCTION__.file_size) #3
  br label %18

18:                                               ; preds = %15
  br label %19

19:                                               ; preds = %18
  store i32 -1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %24

20:                                               ; preds = %2
  %21 = getelementptr inbounds %struct.stat, ptr %7, i32 0, i32 8
  %22 = load i64, ptr %21, align 8, !tbaa !11
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  store i64 %22, ptr %23, align 8, !tbaa !15
  store i32 1, ptr %3, align 4
  store i32 1, ptr %8, align 4
  br label %24

24:                                               ; preds = %20, %19
  call void @llvm.lifetime.end.p0(i64 144, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  %25 = load i32, ptr %3, align 4
  ret i32 %25
}

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

; Function Attrs: nounwind
declare i32 @fileno(ptr noundef) #2

; Function Attrs: nounwind
declare i32 @fstat(i32 noundef, ptr noundef) #2

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

; 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 = { 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 }

!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, !13, i64 48}
!12 = !{!"stat", !13, i64 0, !13, i64 8, !13, i64 16, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !13, i64 40, !13, i64 48, !13, i64 56, !13, i64 64, !14, i64 72, !14, i64 88, !14, i64 104, !7, i64 120}
!13 = !{!"long", !7, i64 0}
!14 = !{!"timespec", !13, i64 0, !13, i64 8}
!15 = !{!13, !13, 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"

%struct.stat = type { i64, i64, i64, i32, i32, i32, i32, i64, i64, i64, i64, %struct.timespec, %struct.timespec, %struct.timespec, [3 x i64] }
%struct.timespec = type { i64, i64 }

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [13 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [58 x i8], align 1
@__FUNCTION__.file_size = external hidden unnamed_addr constant [10 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local range(i32 -1, 2) i32 @file_size(ptr nocapture noundef %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #0 {
  %3 = alloca %struct.stat, align 8
  call void @llvm.lifetime.start.p0(i64 144, ptr nonnull %3) #3
  %4 = tail call i32 @fileno(ptr noundef %0) #3
  %5 = call i32 @fstat(i32 noundef %4, ptr noundef nonnull %3) #3
  %6 = icmp slt i32 %5, 0
  br i1 %6, label %7, label %10

7:                                                ; preds = %2
  %8 = load ptr, ptr @stderr, align 8, !tbaa !5
  %9 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %8, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 30, ptr noundef nonnull @__FUNCTION__.file_size) #4
  br label %13

10:                                               ; preds = %2
  %11 = getelementptr inbounds i8, ptr %3, i64 48
  %12 = load i64, ptr %11, align 8, !tbaa !9
  store i64 %12, ptr %1, align 8, !tbaa !14
  br label %13

13:                                               ; preds = %10, %7
  %.0 = phi i32 [ -1, %7 ], [ 1, %10 ]
  call void @llvm.lifetime.end.p0(i64 144, ptr nonnull %3) #3
  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 noundef i32 @fileno(ptr nocapture noundef) local_unnamed_addr #2

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

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

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

attributes #0 = { nofree 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 = { nounwind }
attributes #4 = { cold 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, !11, i64 48}
!10 = !{!"stat", !11, i64 0, !11, i64 8, !11, i64 16, !12, i64 24, !12, i64 28, !12, i64 32, !12, i64 36, !11, i64 40, !11, i64 48, !11, i64 56, !11, i64 64, !13, i64 72, !13, i64 88, !13, i64 104, !7, i64 120}
!11 = !{!"long", !7, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!"timespec", !11, i64 0, !11, i64 8}
!14 = !{!11, !11, i64 0}


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