; LLVM IR from ros2/rcutils :: src (snprintf)

; 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"

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @rcutils_vsnprintf(ptr noundef %0, i64 noundef %1, ptr noundef %2, ptr noundef %3) #1 {
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca i32, align 4
  store ptr %0, ptr %6, align 8, !tbaa !5
  store i64 %1, ptr %7, align 8, !tbaa !9
  store ptr %2, ptr %8, align 8, !tbaa !5
  store ptr %3, ptr %9, align 8, !tbaa !5
  %11 = load ptr, ptr %8, align 8, !tbaa !5
  %12 = icmp eq ptr null, %11
  br i1 %12, label %13, label %15

13:                                               ; preds = %4
  %14 = call ptr @__errno_location() #4
  store i32 22, ptr %14, align 4, !tbaa !11
  store i32 -1, ptr %5, align 4
  br label %40

15:                                               ; preds = %4
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = icmp eq ptr null, %16
  br i1 %17, label %18, label %25

18:                                               ; preds = %15
  %19 = load i64, ptr %7, align 8, !tbaa !9
  %20 = icmp eq i64 0, %19
  br i1 %20, label %21, label %25

21:                                               ; preds = %18
  %22 = load ptr, ptr %8, align 8, !tbaa !5
  %23 = load ptr, ptr %9, align 8, !tbaa !5
  %24 = call i32 @vsnprintf(ptr noundef null, i64 noundef 0, ptr noundef %22, ptr noundef %23) #5
  store i32 %24, ptr %5, align 4
  br label %40

25:                                               ; preds = %18, %15
  %26 = load ptr, ptr %6, align 8, !tbaa !5
  %27 = icmp eq ptr null, %26
  br i1 %27, label %31, label %28

28:                                               ; preds = %25
  %29 = load i64, ptr %7, align 8, !tbaa !9
  %30 = icmp eq i64 0, %29
  br i1 %30, label %31, label %33

31:                                               ; preds = %28, %25
  %32 = call ptr @__errno_location() #4
  store i32 22, ptr %32, align 4, !tbaa !11
  store i32 -1, ptr %5, align 4
  br label %40

33:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #5
  %34 = load ptr, ptr %6, align 8, !tbaa !5
  %35 = load i64, ptr %7, align 8, !tbaa !9
  %36 = load ptr, ptr %8, align 8, !tbaa !5
  %37 = load ptr, ptr %9, align 8, !tbaa !5
  %38 = call i32 @vsnprintf(ptr noundef %34, i64 noundef %35, ptr noundef %36, ptr noundef %37) #5
  store i32 %38, ptr %10, align 4, !tbaa !11
  %39 = load i32, ptr %10, align 4, !tbaa !11
  store i32 %39, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #5
  br label %40

40:                                               ; preds = %33, %31, %21, %13
  %41 = load i32, ptr %5, align 4
  ret i32 %41
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind willreturn memory(none)
declare ptr @__errno_location() #2

; Function Attrs: nounwind
declare i32 @vsnprintf(ptr noundef, i64 noundef, ptr noundef, ptr noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 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 #3 = { 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 #4 = { nounwind willreturn memory(none) }
attributes #5 = { 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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"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"

; Function Attrs: nofree nounwind uwtable
define dso_local noundef i32 @rcutils_vsnprintf(ptr noundef %0, i64 noundef %1, ptr noundef readonly %2, ptr noundef %3) local_unnamed_addr #0 {
  %5 = icmp eq ptr %2, null
  br i1 %5, label %6, label %8

6:                                                ; preds = %4
  %7 = tail call ptr @__errno_location() #3
  store i32 22, ptr %7, align 4, !tbaa !5
  br label %18

8:                                                ; preds = %4
  %9 = icmp eq ptr %0, null
  %10 = icmp eq i64 %1, 0
  %or.cond = and i1 %9, %10
  br i1 %or.cond, label %11, label %13

11:                                               ; preds = %8
  %12 = tail call i32 @vsnprintf(ptr noundef null, i64 noundef 0, ptr noundef nonnull %2, ptr noundef %3) #4
  br label %18

13:                                               ; preds = %8
  %or.cond3 = or i1 %9, %10
  br i1 %or.cond3, label %14, label %16

14:                                               ; preds = %13
  %15 = tail call ptr @__errno_location() #3
  store i32 22, ptr %15, align 4, !tbaa !5
  br label %18

16:                                               ; preds = %13
  %17 = tail call i32 @vsnprintf(ptr noundef nonnull %0, i64 noundef %1, ptr noundef nonnull %2, ptr noundef %3) #4
  br label %18

18:                                               ; preds = %16, %14, %11, %6
  %.0 = phi i32 [ -1, %6 ], [ %12, %11 ], [ -1, %14 ], [ %17, %16 ]
  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 @vsnprintf(ptr nocapture noundef, i64 noundef, ptr nocapture noundef readonly, ptr noundef) local_unnamed_addr #2

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 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) }
attributes #4 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


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