; LLVM IR from turi-code/SFrame :: oss_src/rpc/circular_char_buffer.ll (ZN8graphlab20circular_char_bufferaSERKS0_)

; 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"

%"class.graphlab::circular_char_buffer" = type { ptr, i64, i64, i64, i64 }

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK8graphlab20circular_char_buffer4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNK8graphlab20circular_char_buffer4peekEPcl(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef, i64 noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZN8graphlab20circular_char_bufferaSERKS0_(ptr noundef nonnull align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(40) %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8
  call void @_ZN8graphlab20circular_char_buffer5clearEv(ptr noundef nonnull align 8 dereferenceable(40) %5)
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = call noundef i64 @_ZNK8graphlab20circular_char_buffer4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %6)
  call void @_ZN8graphlab20circular_char_buffer7reserveEl(ptr noundef nonnull align 8 dereferenceable(40) %5, i64 noundef %7)
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds %"class.graphlab::circular_char_buffer", ptr %5, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = call noundef i64 @_ZNK8graphlab20circular_char_buffer4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %11)
  %13 = call noundef i64 @_ZNK8graphlab20circular_char_buffer4peekEPcl(ptr noundef nonnull align 8 dereferenceable(40) %8, ptr noundef %10, i64 noundef %12)
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = call noundef i64 @_ZNK8graphlab20circular_char_buffer4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %14)
  %16 = getelementptr inbounds %"class.graphlab::circular_char_buffer", ptr %5, i32 0, i32 4
  store i64 %15, ptr %16, align 8, !tbaa !12
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = call noundef i64 @_ZNK8graphlab20circular_char_buffer4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %17)
  %19 = getelementptr inbounds %"class.graphlab::circular_char_buffer", ptr %5, i32 0, i32 2
  store i64 %18, ptr %19, align 8, !tbaa !13
  %20 = getelementptr inbounds %"class.graphlab::circular_char_buffer", ptr %5, i32 0, i32 2
  %21 = load i64, ptr %20, align 8, !tbaa !13
  %22 = getelementptr inbounds %"class.graphlab::circular_char_buffer", ptr %5, i32 0, i32 3
  %23 = load i64, ptr %22, align 8, !tbaa !14
  %24 = icmp eq i64 %21, %23
  br i1 %24, label %25, label %27

25:                                               ; preds = %2
  %26 = getelementptr inbounds %"class.graphlab::circular_char_buffer", ptr %5, i32 0, i32 2
  store i64 0, ptr %26, align 8, !tbaa !13
  br label %27

27:                                               ; preds = %25, %2
  ret ptr %5
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN8graphlab20circular_char_buffer5clearEv(ptr noundef nonnull align 8 dereferenceable(40)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8graphlab20circular_char_buffer7reserveEl(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) #1 align 2

attributes #0 = { inlinehint mustprogress 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 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 #2 = { mustprogress 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++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"_ZTSN8graphlab20circular_char_bufferE", !6, i64 0, !11, i64 8, !11, i64 16, !11, i64 24, !11, i64 32}
!11 = !{!"long", !7, i64 0}
!12 = !{!10, !11, i64 32}
!13 = !{!10, !11, i64 16}
!14 = !{!10, !11, i64 24}


; 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"

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNK8graphlab20circular_char_buffer4sizeEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNK8graphlab20circular_char_buffer4peekEPcl(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef, i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef nonnull align 8 dereferenceable(40) ptr @_ZN8graphlab20circular_char_bufferaSERKS0_(ptr noundef nonnull returned align 8 dereferenceable(40) %0, ptr noundef nonnull align 8 dereferenceable(40) %1) local_unnamed_addr #1 align 2 {
  tail call void @_ZN8graphlab20circular_char_buffer5clearEv(ptr noundef nonnull align 8 dereferenceable(40) %0)
  %3 = tail call noundef i64 @_ZNK8graphlab20circular_char_buffer4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %1)
  tail call void @_ZN8graphlab20circular_char_buffer7reserveEl(ptr noundef nonnull align 8 dereferenceable(40) %0, i64 noundef %3)
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = tail call noundef i64 @_ZNK8graphlab20circular_char_buffer4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %1)
  %6 = tail call noundef i64 @_ZNK8graphlab20circular_char_buffer4peekEPcl(ptr noundef nonnull align 8 dereferenceable(40) %1, ptr noundef %4, i64 noundef %5)
  %7 = tail call noundef i64 @_ZNK8graphlab20circular_char_buffer4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %1)
  %8 = getelementptr inbounds i8, ptr %0, i64 32
  store i64 %7, ptr %8, align 8, !tbaa !11
  %9 = tail call noundef i64 @_ZNK8graphlab20circular_char_buffer4sizeEv(ptr noundef nonnull align 8 dereferenceable(40) %1)
  %10 = getelementptr inbounds i8, ptr %0, i64 16
  %11 = getelementptr inbounds i8, ptr %0, i64 24
  %12 = load i64, ptr %11, align 8, !tbaa !12
  %13 = icmp eq i64 %9, %12
  %spec.store.select = select i1 %13, i64 0, i64 %9
  store i64 %spec.store.select, ptr %10, align 8
  ret ptr %0
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN8graphlab20circular_char_buffer5clearEv(ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN8graphlab20circular_char_buffer7reserveEl(ptr noundef nonnull align 8 dereferenceable(40), i64 noundef) local_unnamed_addr #1 align 2

attributes #0 = { inlinehint mustprogress 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 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 #2 = { mustprogress 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, !7, i64 0}
!6 = !{!"_ZTSN8graphlab20circular_char_bufferE", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !10, i64 32}
!12 = !{!6, !10, i64 24}


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