; LLVM IR from nickmqb/muon :: bootstrap/mu.ll_Namespace (toString__)

; 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.string__ = type { ptr, i32 }
%struct.tag_____StringBuilder__ = type { ptr, i32, i32 }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
declare dso_local { ptr, i32 } @StringBuilder__toString__(ptr noundef) #3

; Function Attrs: nounwind uwtable
define dso_local { ptr, i32 } @Namespace__toString__(ptr noundef %0) #3 {
  %2 = alloca %struct.string__, align 8
  %3 = alloca ptr, align 8
  %4 = alloca %struct.tag_____StringBuilder__, align 8
  %5 = alloca %struct.tag_____StringBuilder__, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr %4) #4
  call void @llvm.memset.p0.i64(ptr align 8 %4, i8 0, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 16, ptr %5) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %5, ptr align 8 %4, i64 16, i1 false), !tbaa.struct !9
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  call void @Namespace__writeTo__(ptr noundef %6, ptr noundef %5)
  %7 = call { ptr, i32 } @StringBuilder__toString__(ptr noundef %5)
  %8 = getelementptr inbounds { ptr, i32 }, ptr %2, i32 0, i32 0
  %9 = extractvalue { ptr, i32 } %7, 0
  store ptr %9, ptr %8, align 8
  %10 = getelementptr inbounds { ptr, i32 }, ptr %2, i32 0, i32 1
  %11 = extractvalue { ptr, i32 } %7, 1
  store i32 %11, ptr %10, align 8
  call void @llvm.lifetime.end.p0(i64 16, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr %4) #4
  %12 = load { ptr, i32 }, ptr %2, align 8
  ret { ptr, i32 } %12
}

; Function Attrs: nounwind uwtable
declare dso_local void @Namespace__writeTo__(ptr noundef, ptr noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = !{i64 0, i64 8, !5, i64 8, i64 4, !10, i64 12, i64 4, !10}
!10 = !{!11, !11, i64 0}
!11 = !{!"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.tag_____StringBuilder__ = type { ptr, i32, i32 }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

; Function Attrs: nounwind uwtable
declare dso_local { ptr, i32 } @StringBuilder__toString__(ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
define dso_local { ptr, i32 } @Namespace__toString__(ptr noundef %0) local_unnamed_addr #2 {
  %2 = alloca %struct.tag_____StringBuilder__, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %2) #3
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %2, i8 0, i64 16, i1 false)
  call void @Namespace__writeTo__(ptr noundef %0, ptr noundef nonnull %2)
  %3 = call { ptr, i32 } @StringBuilder__toString__(ptr noundef nonnull %2)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %2) #3
  ret { ptr, i32 } %3
}

; Function Attrs: nounwind uwtable
declare dso_local void @Namespace__writeTo__(ptr noundef, ptr noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #2 = { 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 #3 = { 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)"}


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