; LLVM IR from aap/pdp6 :: tools (as6)

; 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 }

@pass2 = external dso_local global i32, align 4
@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [8 x i8], align 1
@filename = external dso_local global ptr, align 8
@lineno = external dso_local global i32, align 4
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@error = external dso_local global i32, align 4

; Function Attrs: nounwind uwtable
define dso_local void @err(i32 noundef %0, ptr noundef %1, ...) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca [1 x %struct.__va_list_tag], align 16
  store i32 %0, ptr %3, align 4, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !9
  %6 = load i32, ptr %3, align 4, !tbaa !5
  %7 = icmp eq i32 %6, 0
  br i1 %7, label %8, label %12

8:                                                ; preds = %2
  %9 = load i32, ptr @pass2, align 4, !tbaa !5
  %10 = icmp ne i32 %9, 0
  br i1 %10, label %11, label %12

11:                                               ; preds = %8
  br label %28

12:                                               ; preds = %8, %2
  call void @llvm.lifetime.start.p0(i64 24, ptr %5) #4
  %13 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @llvm.va_start.p0(ptr %13)
  %14 = load ptr, ptr @stderr, align 8, !tbaa !9
  %15 = load ptr, ptr @filename, align 8, !tbaa !9
  %16 = load i32, ptr @lineno, align 4, !tbaa !5
  %17 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %14, ptr noundef @.str, ptr noundef %15, i32 noundef %16) #4
  %18 = load ptr, ptr @stderr, align 8, !tbaa !9
  %19 = load ptr, ptr %4, align 8, !tbaa !9
  %20 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  %21 = call i32 @vfprintf(ptr noundef %18, ptr noundef %19, ptr noundef %20) #4
  %22 = load ptr, ptr @stderr, align 8, !tbaa !9
  %23 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %22, ptr noundef @.str.1) #4
  %24 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %5, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %24)
  %25 = load i32, ptr %3, align 4, !tbaa !5
  %26 = load i32, ptr @error, align 4, !tbaa !5
  %27 = or i32 %26, %25
  store i32 %27, ptr @error, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 24, ptr %5) #4
  br label %28

28:                                               ; preds = %12, %11
  ret void
}

; 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 @fprintf(ptr noundef, ptr noundef, ...) #3

; 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { 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 = { 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"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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 }

@pass2 = external dso_local local_unnamed_addr global i32, align 4
@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [8 x i8], align 1
@filename = external dso_local local_unnamed_addr global ptr, align 8
@lineno = external dso_local local_unnamed_addr global i32, align 4
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@error = external dso_local local_unnamed_addr global i32, align 4

; Function Attrs: nofree nounwind uwtable
define dso_local void @err(i32 noundef %0, ptr nocapture noundef readonly %1, ...) local_unnamed_addr #0 {
  %3 = alloca [1 x %struct.__va_list_tag], align 16
  %4 = icmp eq i32 %0, 0
  %5 = load i32, ptr @pass2, align 4
  %6 = icmp ne i32 %5, 0
  %or.cond = select i1 %4, i1 %6, i1 false
  br i1 %or.cond, label %18, label %7

7:                                                ; preds = %2
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #4
  call void @llvm.va_start.p0(ptr nonnull %3)
  %8 = load ptr, ptr @stderr, align 8, !tbaa !5
  %9 = load ptr, ptr @filename, align 8, !tbaa !5
  %10 = load i32, ptr @lineno, align 4, !tbaa !9
  %11 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %8, ptr noundef nonnull @.str, ptr noundef %9, i32 noundef %10) #5
  %12 = load ptr, ptr @stderr, align 8, !tbaa !5
  %13 = call i32 @vfprintf(ptr noundef %12, ptr noundef %1, ptr noundef nonnull %3) #5
  %14 = load ptr, ptr @stderr, align 8, !tbaa !5
  %15 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %14, ptr noundef nonnull @.str.1) #5
  call void @llvm.va_end.p0(ptr nonnull %3)
  %16 = load i32, ptr @error, align 4, !tbaa !9
  %17 = or i32 %16, %0
  store i32 %17, ptr @error, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  br label %18

18:                                               ; preds = %2, %7
  ret void
}

; 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 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #3

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

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

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

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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #3 = { 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 #4 = { nounwind }
attributes #5 = { cold 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}


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