; LLVM IR from aws/s2n-tls :: tests/testlib (s2n_connection_test_utils)

; 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.s2n_test_io_pair = type { i32, i32 }

; Function Attrs: nounwind uwtable
define dso_local i32 @s2n_io_pair_close_one_end(ptr noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %6 = load i32, ptr %5, align 4, !tbaa !9
  %7 = icmp eq i32 %6, 1
  br i1 %7, label %8, label %25

8:                                                ; preds = %2
  %9 = load ptr, ptr %4, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.s2n_test_io_pair, ptr %9, i32 0, i32 0
  %11 = load i32, ptr %10, align 4, !tbaa !11
  %12 = icmp ne i32 %11, -1
  br i1 %12, label %13, label %25

13:                                               ; preds = %8
  br label %14

14:                                               ; preds = %13
  %15 = load ptr, ptr %4, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.s2n_test_io_pair, ptr %15, i32 0, i32 0
  %17 = load i32, ptr %16, align 4, !tbaa !11
  %18 = call i32 @close(i32 noundef %17)
  %19 = icmp sgt i32 %18, -1
  br i1 %19, label %21, label %20

20:                                               ; preds = %14
  store i32 -1, ptr %3, align 4
  br label %47

21:                                               ; preds = %14
  br label %22

22:                                               ; preds = %21
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.s2n_test_io_pair, ptr %23, i32 0, i32 0
  store i32 -1, ptr %24, align 4, !tbaa !11
  br label %46

25:                                               ; preds = %8, %2
  %26 = load i32, ptr %5, align 4, !tbaa !9
  %27 = icmp eq i32 %26, 0
  br i1 %27, label %28, label %45

28:                                               ; preds = %25
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.s2n_test_io_pair, ptr %29, i32 0, i32 1
  %31 = load i32, ptr %30, align 4, !tbaa !13
  %32 = icmp ne i32 %31, -1
  br i1 %32, label %33, label %45

33:                                               ; preds = %28
  br label %34

34:                                               ; preds = %33
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.s2n_test_io_pair, ptr %35, i32 0, i32 1
  %37 = load i32, ptr %36, align 4, !tbaa !13
  %38 = call i32 @close(i32 noundef %37)
  %39 = icmp sgt i32 %38, -1
  br i1 %39, label %41, label %40

40:                                               ; preds = %34
  store i32 -1, ptr %3, align 4
  br label %47

41:                                               ; preds = %34
  br label %42

42:                                               ; preds = %41
  %43 = load ptr, ptr %4, align 8, !tbaa !5
  %44 = getelementptr inbounds %struct.s2n_test_io_pair, ptr %43, i32 0, i32 1
  store i32 -1, ptr %44, align 4, !tbaa !13
  br label %45

45:                                               ; preds = %42, %28, %25
  br label %46

46:                                               ; preds = %45, %22
  store i32 0, ptr %3, align 4
  br label %47

47:                                               ; preds = %46, %40, %20
  %48 = load i32, ptr %3, align 4
  ret i32 %48
}

declare i32 @close(i32 noundef) #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 = { "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" }

!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, !10, i64 0}
!12 = !{!"s2n_test_io_pair", !10, i64 0, !10, i64 4}
!13 = !{!12, !10, i64 4}


; 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"

; Function Attrs: nounwind uwtable
define dso_local range(i32 -1, 1) i32 @s2n_io_pair_close_one_end(ptr nocapture noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  switch i32 %1, label %14 [
    i32 1, label %3
    i32 0, label %8
  ]

3:                                                ; preds = %2
  %4 = load i32, ptr %0, align 4, !tbaa !5
  %.not = icmp eq i32 %4, -1
  br i1 %.not, label %14, label %5

5:                                                ; preds = %3
  %6 = tail call i32 @close(i32 noundef %4) #2
  %7 = icmp sgt i32 %6, -1
  br i1 %7, label %.sink.split, label %14

8:                                                ; preds = %2
  %9 = getelementptr inbounds i8, ptr %0, i64 4
  %10 = load i32, ptr %9, align 4, !tbaa !10
  %.not10 = icmp eq i32 %10, -1
  br i1 %.not10, label %14, label %11

11:                                               ; preds = %8
  %12 = tail call i32 @close(i32 noundef %10) #2
  %13 = icmp sgt i32 %12, -1
  br i1 %13, label %.sink.split, label %14

.sink.split:                                      ; preds = %11, %5
  %.sink = phi ptr [ %0, %5 ], [ %9, %11 ]
  store i32 -1, ptr %.sink, align 4, !tbaa !11
  br label %14

14:                                               ; preds = %.sink.split, %3, %8, %2, %11, %5
  %.0 = phi i32 [ -1, %5 ], [ -1, %11 ], [ 0, %2 ], [ 0, %8 ], [ 0, %3 ], [ 0, %.sink.split ]
  ret i32 %.0
}

declare i32 @close(i32 noundef) local_unnamed_addr #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 = { "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 = { 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, !7, i64 0}
!6 = !{!"s2n_test_io_pair", !7, i64 0, !7, i64 4}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 4}
!11 = !{!7, !7, i64 0}


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