; LLVM IR from aagdev/mlimgsynth :: src/ccommon (stream)

; 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.StreamInt = type { [3 x ptr] }

; 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

declare i32 @close(i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local i32 @stream_posix_close(ptr noundef %0) #2 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i64, align 8
  %5 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.StreamInt, ptr %6, i32 0, i32 0
  %8 = getelementptr inbounds [3 x ptr], ptr %7, i64 0, i64 0
  %9 = load ptr, ptr %8, align 8, !tbaa !5
  %10 = ptrtoint ptr %9 to i64
  %11 = trunc i64 %10 to i32
  store i32 %11, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.StreamInt, ptr %12, i32 0, i32 0
  %14 = getelementptr inbounds [3 x ptr], ptr %13, i64 0, i64 1
  %15 = load ptr, ptr %14, align 8, !tbaa !5
  %16 = ptrtoint ptr %15 to i64
  store i64 %16, ptr %4, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !9
  %17 = load i64, ptr %4, align 8, !tbaa !11
  %18 = and i64 %17, 65536
  %19 = icmp ne i64 %18, 0
  br i1 %19, label %20, label %23

20:                                               ; preds = %1
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = call i32 (ptr, i32, ...) @stream_posix_control_int(ptr noundef %21, i32 noundef 2, i32 noundef 0)
  br label %23

23:                                               ; preds = %20, %1
  %24 = load i32, ptr %3, align 4, !tbaa !9
  %25 = call i32 @close(i32 noundef %24)
  %26 = icmp slt i32 %25, 0
  br i1 %26, label %27, label %28

27:                                               ; preds = %23
  store i32 -265, ptr %5, align 4, !tbaa !9
  br label %28

28:                                               ; preds = %27, %23
  %29 = load i32, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret i32 %29
}

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

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 #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, !12, i64 0}
!12 = !{!"long", !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"

declare i32 @close(i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local range(i32 -265, 1) i32 @stream_posix_close(ptr noundef %0) local_unnamed_addr #1 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = ptrtoint ptr %4 to i64
  %6 = and i64 %5, 65536
  %.not = icmp eq i64 %6, 0
  br i1 %.not, label %9, label %7

7:                                                ; preds = %1
  %8 = tail call i32 (ptr, i32, ...) @stream_posix_control_int(ptr noundef nonnull %0, i32 noundef 2, i32 noundef 0)
  br label %9

9:                                                ; preds = %7, %1
  %10 = ptrtoint ptr %2 to i64
  %11 = trunc i64 %10 to i32
  %12 = tail call i32 @close(i32 noundef %11) #2
  %13 = icmp slt i32 %12, 0
  %spec.select = select i1 %13, i32 -265, i32 0
  ret i32 %spec.select
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @stream_posix_control_int(ptr noundef, i32 noundef, ...) local_unnamed_addr #1

attributes #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 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 = { 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"}


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