; LLVM IR from nickmqb/muon :: bootstrap/mu.ll_ArenaAllocator (iAllocator_escaping__)

; 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.tag_____IAllocator__ = type { ptr, ptr, ptr, ptr }

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @ArenaAllocator__alloc__(ptr noundef, i64 noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @ArenaAllocator__realloc__(ptr noundef, ptr noundef, i64 noundef, i64 noundef, i64 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @ArenaAllocator__iAllocator_escaping__(ptr dead_on_unwind noalias writable sret(%struct.tag_____IAllocator__) align 8 %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  store ptr %1, ptr %3, align 8, !tbaa !5
  call void @llvm.memset.p0.i64(ptr align 8 %0, i8 0, i64 32, i1 false)
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = getelementptr inbounds %struct.tag_____IAllocator__, ptr %0, i32 0, i32 0
  store ptr %4, ptr %5, align 8, !tbaa !9
  %6 = getelementptr inbounds %struct.tag_____IAllocator__, ptr %0, i32 0, i32 1
  store ptr @ArenaAllocator__alloc__, ptr %6, align 8, !tbaa !11
  %7 = getelementptr inbounds %struct.tag_____IAllocator__, ptr %0, i32 0, i32 2
  store ptr @ArenaAllocator__realloc__, ptr %7, align 8, !tbaa !12
  ret void
}

attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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" }

!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 = !{!"tag_____IAllocator__", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24}
!11 = !{!10, !6, i64 8}
!12 = !{!10, !6, i64 16}


; 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.tag_____IAllocator__ = type { ptr, ptr, ptr, ptr }

; Function Attrs: nounwind uwtable
declare dso_local ptr @ArenaAllocator__alloc__(ptr noundef, i64 noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local ptr @ArenaAllocator__realloc__(ptr noundef, ptr noundef, i64 noundef, i64 noundef, i64 noundef) #0

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define dso_local void @ArenaAllocator__iAllocator_escaping__(ptr dead_on_unwind noalias nocapture writable writeonly sret(%struct.tag_____IAllocator__) align 8 %0, ptr noundef %1) local_unnamed_addr #1 {
  %3 = getelementptr inbounds i8, ptr %0, i64 24
  store i64 0, ptr %3, align 8
  store ptr %1, ptr %0, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr @ArenaAllocator__alloc__, ptr %4, align 8, !tbaa !10
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  store ptr @ArenaAllocator__realloc__, ptr %5, align 8, !tbaa !11
  ret void
}

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 nofree norecurse nosync nounwind willreturn memory(argmem: write) 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" }

!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 = !{!"tag_____IAllocator__", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 8}
!11 = !{!6, !7, i64 16}


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