; LLVM IR from WayneLin92/SSeqCpp :: thirdparty/fmt/test/posix-mock-test.ll (ZN4test6fcloseEP8_IO_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"

@_ZN12_GLOBAL__N_112fclose_countE = external hidden global i32, align 4

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN4test6fcloseEP8_IO_FILE(ptr noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = load i32, ptr @_ZN12_GLOBAL__N_112fclose_countE, align 4, !tbaa !9
  %5 = icmp ne i32 %4, 0
  br i1 %5, label %6, label %13

6:                                                ; preds = %1
  %7 = load i32, ptr @_ZN12_GLOBAL__N_112fclose_countE, align 4, !tbaa !9
  %8 = add nsw i32 %7, 1
  store i32 %8, ptr @_ZN12_GLOBAL__N_112fclose_countE, align 4, !tbaa !9
  %9 = icmp ne i32 %7, 3
  br i1 %9, label %10, label %12

10:                                               ; preds = %6
  %11 = call ptr @__errno_location() #3
  store i32 4, ptr %11, align 4, !tbaa !9
  store i32 -1, ptr %2, align 4
  br label %16

12:                                               ; preds = %6
  br label %13

13:                                               ; preds = %12, %1
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  %15 = call i32 @fclose(ptr noundef %14)
  store i32 %15, ptr %2, align 4
  br label %16

16:                                               ; preds = %13, %10
  %17 = load i32, ptr %2, align 4
  ret i32 %17
}

; Function Attrs: nounwind willreturn memory(none)
declare ptr @__errno_location() #1

declare i32 @fclose(ptr noundef) #2

attributes #0 = { mustprogress 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 willreturn memory(none) "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 = { nounwind willreturn memory(none) }

!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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !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"

@_ZN12_GLOBAL__N_112fclose_countE = external hidden local_unnamed_addr global i32, align 4

; Function Attrs: mustprogress nofree nounwind uwtable
define dso_local noundef i32 @_ZN4test6fcloseEP8_IO_FILE(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = load i32, ptr @_ZN12_GLOBAL__N_112fclose_countE, align 4, !tbaa !5
  %.not = icmp eq i32 %2, 0
  br i1 %.not, label %7, label %3

3:                                                ; preds = %1
  %4 = add nsw i32 %2, 1
  store i32 %4, ptr @_ZN12_GLOBAL__N_112fclose_countE, align 4, !tbaa !5
  %.not2 = icmp eq i32 %2, 3
  br i1 %.not2, label %7, label %5

5:                                                ; preds = %3
  %6 = tail call ptr @__errno_location() #3
  store i32 4, ptr %6, align 4, !tbaa !5
  br label %9

7:                                                ; preds = %3, %1
  %8 = tail call i32 @fclose(ptr noundef %0)
  br label %9

9:                                                ; preds = %7, %5
  %.0 = phi i32 [ -1, %5 ], [ %8, %7 ]
  ret i32 %.0
}

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
declare ptr @__errno_location() local_unnamed_addr #1

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

attributes #0 = { mustprogress 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 nofree nosync nounwind willreturn memory(none) "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 = { 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 willreturn memory(none) }

!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++ TBAA"}


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