; LLVM IR from tensorflow/tflite-micro :: tensorflow/lite/micro/arena_allocator (recording_single_arena_buffer_allocator)

; 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.tflite::RecordingSingleArenaBufferAllocator" = type { %"class.tflite::SingleArenaBufferAllocator.base", i64, i64, i64, i64 }
%"class.tflite::SingleArenaBufferAllocator.base" = type <{ %"class.tflite::INonPersistentBufferAllocator", %"class.tflite::IPersistentBufferAllocator", ptr, ptr, ptr, ptr, ptr, i64, i32 }>
%"class.tflite::INonPersistentBufferAllocator" = type { ptr }
%"class.tflite::IPersistentBufferAllocator" = type { ptr }

@_ZTVN6tflite35RecordingSingleArenaBufferAllocatorE = external dso_local unnamed_addr constant { [17 x ptr], [6 x ptr] }, align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6tflite35RecordingSingleArenaBufferAllocatorC2EPhm(ptr noundef nonnull align 8 dereferenceable(104) %0, ptr noundef %1, i64 noundef %2) unnamed_addr #0 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i64 %2, ptr %6, align 8, !tbaa !9
  %7 = load ptr, ptr %4, align 8
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = load i64, ptr %6, align 8, !tbaa !9
  call void @_ZN6tflite26SingleArenaBufferAllocatorC2EPhm(ptr noundef nonnull align 8 dereferenceable(68) %7, ptr noundef %8, i64 noundef %9)
  store ptr getelementptr inbounds inrange(-16, 120) ({ [17 x ptr], [6 x ptr] }, ptr @_ZTVN6tflite35RecordingSingleArenaBufferAllocatorE, i32 0, i32 0, i32 2), ptr %7, align 8, !tbaa !11
  %10 = getelementptr inbounds i8, ptr %7, i64 8
  store ptr getelementptr inbounds inrange(-16, 32) ({ [17 x ptr], [6 x ptr] }, ptr @_ZTVN6tflite35RecordingSingleArenaBufferAllocatorE, i32 0, i32 1, i32 2), ptr %10, align 8, !tbaa !11
  %11 = getelementptr inbounds %"class.tflite::RecordingSingleArenaBufferAllocator", ptr %7, i32 0, i32 1
  store i64 0, ptr %11, align 8, !tbaa !13
  %12 = getelementptr inbounds %"class.tflite::RecordingSingleArenaBufferAllocator", ptr %7, i32 0, i32 2
  store i64 0, ptr %12, align 8, !tbaa !19
  %13 = getelementptr inbounds %"class.tflite::RecordingSingleArenaBufferAllocator", ptr %7, i32 0, i32 3
  store i64 0, ptr %13, align 8, !tbaa !20
  %14 = getelementptr inbounds %"class.tflite::RecordingSingleArenaBufferAllocator", ptr %7, i32 0, i32 4
  store i64 0, ptr %14, align 8, !tbaa !21
  ret void
}

declare void @_ZN6tflite26SingleArenaBufferAllocatorC2EPhm(ptr noundef nonnull align 8 dereferenceable(68), ptr noundef, i64 noundef) unnamed_addr #1

attributes #0 = { 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 #1 = { "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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"vtable pointer", !8, i64 0}
!13 = !{!14, !10, i64 72}
!14 = !{!"_ZTSN6tflite35RecordingSingleArenaBufferAllocatorE", !15, i64 0, !10, i64 72, !10, i64 80, !10, i64 88, !10, i64 96}
!15 = !{!"_ZTSN6tflite26SingleArenaBufferAllocatorE", !16, i64 0, !17, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !10, i64 56, !18, i64 64}
!16 = !{!"_ZTSN6tflite29INonPersistentBufferAllocatorE"}
!17 = !{!"_ZTSN6tflite26IPersistentBufferAllocatorE"}
!18 = !{!"int", !7, i64 0}
!19 = !{!14, !10, i64 80}
!20 = !{!14, !10, i64 88}
!21 = !{!14, !10, i64 96}


; 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"

@_ZTVN6tflite35RecordingSingleArenaBufferAllocatorE = external dso_local unnamed_addr constant { [17 x ptr], [6 x ptr] }, align 8

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN6tflite35RecordingSingleArenaBufferAllocatorC2EPhm(ptr noundef nonnull align 8 dereferenceable(104) %0, ptr noundef %1, i64 noundef %2) unnamed_addr #0 align 2 {
  tail call void @_ZN6tflite26SingleArenaBufferAllocatorC2EPhm(ptr noundef nonnull align 8 dereferenceable(68) %0, ptr noundef %1, i64 noundef %2)
  store ptr getelementptr inbounds inrange(-16, 120) (i8, ptr @_ZTVN6tflite35RecordingSingleArenaBufferAllocatorE, i64 16), ptr %0, align 8, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr getelementptr inbounds inrange(-16, 32) (i8, ptr @_ZTVN6tflite35RecordingSingleArenaBufferAllocatorE, i64 152), ptr %4, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 72
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(32) %5, i8 0, i64 32, i1 false)
  ret void
}

declare void @_ZN6tflite26SingleArenaBufferAllocatorC2EPhm(ptr noundef nonnull align 8 dereferenceable(68), ptr noundef, i64 noundef) unnamed_addr #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

attributes #0 = { 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 #1 = { "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 = { nocallback nofree nounwind willreturn memory(argmem: write) }

!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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


; Effective O3 passes: InstCombinePass,MemCpyOptPass,SROAPass,TailCallElimPass