; LLVM IR from 0intro/wmii :: lib/libfmt (vsmprint)

; 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.Fmt = type { i8, ptr, ptr, ptr, ptr, ptr, i32, [1 x %struct.__va_list_tag], i32, i32, i32, i64, ptr, ptr, ptr }
%struct.__va_list_tag = type { i32, i32, ptr, ptr }

; Function Attrs: nounwind uwtable
declare dso_local i32 @fmtstrinit(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 memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @vsmprint(ptr noundef %0, ptr noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca %struct.Fmt, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 128, ptr %6) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #5
  %9 = call i32 @fmtstrinit(ptr noundef %6)
  %10 = icmp slt i32 %9, 0
  br i1 %10, label %11, label %12

11:                                               ; preds = %2
  store ptr null, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %27

12:                                               ; preds = %2
  %13 = getelementptr inbounds %struct.Fmt, ptr %6, i32 0, i32 7
  %14 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %13, i64 0, i64 0
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  call void @llvm.va_copy.p0(ptr %14, ptr %15)
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = call i32 @dofmt(ptr noundef %6, ptr noundef %16)
  store i32 %17, ptr %7, align 4, !tbaa !9
  %18 = getelementptr inbounds %struct.Fmt, ptr %6, i32 0, i32 7
  %19 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %18, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %19)
  %20 = load i32, ptr %7, align 4, !tbaa !9
  %21 = icmp slt i32 %20, 0
  br i1 %21, label %22, label %25

22:                                               ; preds = %12
  %23 = getelementptr inbounds %struct.Fmt, ptr %6, i32 0, i32 1
  %24 = load ptr, ptr %23, align 8, !tbaa !11
  call void @free(ptr noundef %24) #5
  store ptr null, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %27

25:                                               ; preds = %12
  %26 = call ptr @fmtstrflush(ptr noundef %6)
  store ptr %26, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %27

27:                                               ; preds = %25, %22, %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #5
  call void @llvm.lifetime.end.p0(i64 128, ptr %6) #5
  %28 = load ptr, ptr %3, align 8
  ret ptr %28
}

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

declare i32 @dofmt(ptr noundef, ptr noundef) #3

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

; Function Attrs: nounwind
declare void @free(ptr noundef) #4

declare ptr @fmtstrflush(ptr noundef) #3

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 = { "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 "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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !6, i64 8}
!12 = !{!"Fmt", !7, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !10, i64 48, !7, i64 56, !10, i64 80, !10, i64 84, !10, i64 88, !13, i64 96, !6, i64 104, !6, i64 112, !6, i64 120}
!13 = !{!"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"

%struct.Fmt = type { i8, ptr, ptr, ptr, ptr, ptr, i32, [1 x %struct.__va_list_tag], i32, i32, i32, i64, ptr, ptr, ptr }
%struct.__va_list_tag = type { i32, i32, ptr, ptr }

; Function Attrs: nounwind uwtable
declare dso_local i32 @fmtstrinit(ptr noundef) 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 memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
define dso_local ptr @vsmprint(ptr noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = alloca %struct.Fmt, align 8
  call void @llvm.lifetime.start.p0(i64 128, ptr nonnull %3) #5
  %4 = call i32 @fmtstrinit(ptr noundef nonnull %3)
  %5 = icmp slt i32 %4, 0
  br i1 %5, label %15, label %6

6:                                                ; preds = %2
  %7 = getelementptr inbounds i8, ptr %3, i64 56
  call void @llvm.va_copy.p0(ptr nonnull %7, ptr %1)
  %8 = call i32 @dofmt(ptr noundef nonnull %3, ptr noundef %0) #5
  call void @llvm.va_end.p0(ptr nonnull %7)
  %9 = icmp slt i32 %8, 0
  br i1 %9, label %10, label %13

10:                                               ; preds = %6
  %11 = getelementptr inbounds i8, ptr %3, i64 8
  %12 = load ptr, ptr %11, align 8, !tbaa !5
  call void @free(ptr noundef %12) #5
  br label %15

13:                                               ; preds = %6
  %14 = call ptr @fmtstrflush(ptr noundef nonnull %3) #5
  br label %15

15:                                               ; preds = %2, %13, %10
  %.0 = phi ptr [ null, %10 ], [ %14, %13 ], [ null, %2 ]
  call void @llvm.lifetime.end.p0(i64 128, ptr nonnull %3) #5
  ret ptr %.0
}

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

declare i32 @dofmt(ptr noundef, 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 nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #4

declare ptr @fmtstrflush(ptr noundef) local_unnamed_addr #3

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #3 = { "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 nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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, !9, i64 8}
!6 = !{!"Fmt", !7, i64 0, !9, i64 8, !9, i64 16, !9, i64 24, !9, i64 32, !9, i64 40, !10, i64 48, !7, i64 56, !10, i64 80, !10, i64 84, !10, i64 88, !11, i64 96, !9, i64 104, !9, i64 112, !9, i64 120}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!"any pointer", !7, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!"long", !7, i64 0}


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