; LLVM IR from WayneLin92/SSeqCpp :: thirdparty/fmt/test/posix-mock-test.ll (ZN4test4openEPKcii)

; 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_110open_countE = external hidden global i32, align 4

; Function Attrs: nounwind willreturn memory(none)
declare ptr @__errno_location() #0

; Function Attrs: mustprogress uwtable
define dso_local noundef i32 @_ZN4test4openEPKcii(ptr noundef %0, i32 noundef %1, i32 noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  %8 = load i32, ptr @_ZN12_GLOBAL__N_110open_countE, align 4, !tbaa !9
  %9 = icmp ne i32 %8, 0
  br i1 %9, label %10, label %17

10:                                               ; preds = %3
  %11 = load i32, ptr @_ZN12_GLOBAL__N_110open_countE, align 4, !tbaa !9
  %12 = add nsw i32 %11, 1
  store i32 %12, ptr @_ZN12_GLOBAL__N_110open_countE, align 4, !tbaa !9
  %13 = icmp ne i32 %11, 3
  br i1 %13, label %14, label %16

14:                                               ; preds = %10
  %15 = call ptr @__errno_location() #3
  store i32 4, ptr %15, align 4, !tbaa !9
  store i32 -1, ptr %4, align 4
  br label %22

16:                                               ; preds = %10
  br label %17

17:                                               ; preds = %16, %3
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = load i32, ptr %6, align 4, !tbaa !9
  %20 = load i32, ptr %7, align 4, !tbaa !9
  %21 = call i32 (ptr, i32, ...) @open(ptr noundef %18, i32 noundef %19, i32 noundef %20)
  store i32 %21, ptr %4, align 4
  br label %22

22:                                               ; preds = %17, %14
  %23 = load i32, ptr %4, align 4
  ret i32 %23
}

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

attributes #0 = { 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 #1 = { 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 #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_110open_countE = external hidden local_unnamed_addr global i32, align 4

; Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
declare ptr @__errno_location() local_unnamed_addr #0

; Function Attrs: mustprogress nofree uwtable
define dso_local noundef i32 @_ZN4test4openEPKcii(ptr nocapture noundef readonly %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #1 {
  %4 = load i32, ptr @_ZN12_GLOBAL__N_110open_countE, align 4, !tbaa !5
  %.not = icmp eq i32 %4, 0
  br i1 %.not, label %9, label %5

5:                                                ; preds = %3
  %6 = add nsw i32 %4, 1
  store i32 %6, ptr @_ZN12_GLOBAL__N_110open_countE, align 4, !tbaa !5
  %.not4 = icmp eq i32 %4, 3
  br i1 %.not4, label %9, label %7

7:                                                ; preds = %5
  %8 = tail call ptr @__errno_location() #3
  store i32 4, ptr %8, align 4, !tbaa !5
  br label %11

9:                                                ; preds = %5, %3
  %10 = tail call i32 (ptr, i32, ...) @open(ptr noundef %0, i32 noundef %1, i32 noundef %2)
  br label %11

11:                                               ; preds = %9, %7
  %.0 = phi i32 [ -1, %7 ], [ %10, %9 ]
  ret i32 %.0
}

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

attributes #0 = { 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 #1 = { mustprogress nofree 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 #2 = { nofree "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