; LLVM IR from niessner/Matterport :: code/gaps/pkgs/RNBasics/RNError.ll (Z9RNWarningPKcz)

; 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.__va_list_tag = type { i32, i32, ptr, ptr }

@_ZL12RNerror_file = external hidden global ptr, align 8
@_ZL13RNerror_level = external hidden global i32, align 4
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [13 x i8], align 1

declare void @perror(ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #2

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

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #2

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z9RNWarningPKcz(ptr noundef %0, ...) #4 {
  %2 = alloca ptr, align 8
  %3 = alloca [1 x %struct.__va_list_tag], align 16
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load i32, ptr @_ZL13RNerror_level, align 4, !tbaa !9
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %6, label %7

6:                                                ; preds = %1
  br label %23

7:                                                ; preds = %1
  %8 = load ptr, ptr @_ZL12RNerror_file, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %23

10:                                               ; preds = %7
  call void @perror(ptr noundef @.str.3)
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = icmp ne ptr %11, null
  br i1 %12, label %13, label %22

13:                                               ; preds = %10
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #5
  %14 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %3, i64 0, i64 0
  call void @llvm.va_start.p0(ptr %14)
  %15 = load ptr, ptr @_ZL12RNerror_file, align 8, !tbaa !5
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %3, i64 0, i64 0
  %18 = call i32 @vfprintf(ptr noundef %15, ptr noundef %16, ptr noundef %17) #5
  %19 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %3, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %19)
  %20 = load ptr, ptr @_ZL12RNerror_file, align 8, !tbaa !5
  %21 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %20, ptr noundef @.str.1) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  br label %22

22:                                               ; preds = %13, %10
  br label %23

23:                                               ; preds = %22, %7, %6
  ret void
}

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind willreturn }
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 = { 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 #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++ 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"

%struct.__va_list_tag = type { i32, i32, ptr, ptr }

@_ZL12RNerror_file = external hidden local_unnamed_addr global ptr, align 8
@_ZL13RNerror_level = external hidden local_unnamed_addr global i32, align 4
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: nofree nounwind
declare void @perror(ptr nocapture noundef readonly) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #2

; Function Attrs: nofree nounwind
declare noundef i32 @vfprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #2

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nofree nounwind uwtable
define dso_local void @_Z9RNWarningPKcz(ptr noundef readonly %0, ...) local_unnamed_addr #3 {
  %2 = alloca [1 x %struct.__va_list_tag], align 16
  %3 = load i32, ptr @_ZL13RNerror_level, align 4, !tbaa !5
  %4 = icmp slt i32 %3, 1
  %5 = load ptr, ptr @_ZL12RNerror_file, align 8
  %6 = icmp ne ptr %5, null
  %or.cond = select i1 %4, i1 %6, i1 false
  br i1 %or.cond, label %7, label %13

7:                                                ; preds = %1
  tail call void @perror(ptr noundef nonnull @.str.3) #4
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %13, label %8

8:                                                ; preds = %7
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #5
  call void @llvm.va_start.p0(ptr nonnull %2)
  %9 = load ptr, ptr @_ZL12RNerror_file, align 8, !tbaa !9
  %10 = call i32 @vfprintf(ptr noundef %9, ptr noundef nonnull %0, ptr noundef nonnull %2) #5
  call void @llvm.va_end.p0(ptr nonnull %2)
  %11 = load ptr, ptr @_ZL12RNerror_file, align 8, !tbaa !9
  %12 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %11, ptr noundef nonnull @.str.1) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  br label %13

13:                                               ; preds = %7, %8, %1
  ret void
}

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #3 = { 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 #4 = { cold }
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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}


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