; LLVM IR from 0intro/wmii :: lib/libstuff/util (fatal)

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

@.str = external hidden unnamed_addr constant [15 x i8], align 1
@argv0 = external global ptr, align 8

; Function Attrs: nounwind uwtable
define dso_local void @fatal(ptr noundef %0, ...) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca %struct.VFmt, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #5
  %4 = call i32 @fmtinstall(i32 noundef 86, ptr noundef @Vfmt)
  %5 = call i32 @fmtinstall(i32 noundef 1, ptr noundef @Vfmt)
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.VFmt, ptr %3, i32 0, i32 0
  store ptr %6, ptr %7, align 8, !tbaa !9
  %8 = getelementptr inbounds %struct.VFmt, ptr %3, i32 0, i32 1
  %9 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %8, i64 0, i64 0
  call void @llvm.va_start.p0(ptr %9)
  %10 = load ptr, ptr @argv0, align 8, !tbaa !5
  %11 = call i32 (i32, ptr, ...) @fprint(i32 noundef 2, ptr noundef @.str, ptr noundef %10, ptr noundef %3)
  %12 = getelementptr inbounds %struct.VFmt, ptr %3, i32 0, i32 1
  %13 = getelementptr inbounds [1 x %struct.__va_list_tag], ptr %12, i64 0, i64 0
  call void @llvm.va_end.p0(ptr %13)
  call void @exit(i32 noundef 1) #6
  unreachable
}

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

declare i32 @fmtinstall(i32 noundef, ptr noundef) #2

; Function Attrs: nounwind uwtable
declare hidden i32 @Vfmt(ptr noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #3

declare i32 @fprint(i32 noundef, ptr noundef, ...) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #3

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #4

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 = { "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 = { nocallback nofree nosync nounwind willreturn }
attributes #4 = { noreturn 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 }
attributes #6 = { noreturn 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, !6, i64 0}
!10 = !{!"VFmt", !6, i64 0, !7, i64 8}


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

@.str = external hidden unnamed_addr constant [15 x i8], align 1
@argv0 = external local_unnamed_addr global ptr, align 8

; Function Attrs: noreturn nounwind uwtable
define dso_local void @fatal(ptr noundef %0, ...) local_unnamed_addr #0 {
  %2 = alloca %struct.VFmt, align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #6
  %3 = tail call i32 @fmtinstall(i32 noundef 86, ptr noundef nonnull @Vfmt) #6
  %4 = tail call i32 @fmtinstall(i32 noundef 1, ptr noundef nonnull @Vfmt) #6
  store ptr %0, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %2, i64 8
  call void @llvm.va_start.p0(ptr nonnull %5)
  %6 = load ptr, ptr @argv0, align 8, !tbaa !10
  %7 = call i32 (i32, ptr, ...) @fprint(i32 noundef 2, ptr noundef nonnull @.str, ptr noundef %6, ptr noundef nonnull %2) #6
  call void @llvm.va_end.p0(ptr nonnull %5)
  call void @exit(i32 noundef 1) #7
  unreachable
}

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

declare i32 @fmtinstall(i32 noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare hidden i32 @Vfmt(ptr noundef) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_start.p0(ptr) #4

declare i32 @fprint(i32 noundef, ptr noundef, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.va_end.p0(ptr) #4

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) local_unnamed_addr #5

attributes #0 = { noreturn 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 = { "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 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 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #5 = { noreturn 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 #6 = { nounwind }
attributes #7 = { noreturn 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, !7, i64 0}
!6 = !{!"VFmt", !7, i64 0, !8, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!7, !7, i64 0}


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