; LLVM IR from AmplitudeAudio/sdk :: src/Utils/SmMalloc/smmalloc_generic.ll (ZN2sm16GenericAllocator7ReallocEPvS1_mm)

; 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"

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN2sm16GenericAllocator5AllocEPvmm(ptr noundef, i64 noundef, i64 noundef) #0 align 2

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN2sm16GenericAllocator4FreeEPvS1_(ptr noundef, ptr noundef) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_ZN2sm16GenericAllocator7ReallocEPvS1_mm(ptr noundef %0, ptr noundef %1, i64 noundef %2, i64 noundef %3) #2 align 2 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca i64, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  store ptr %1, ptr %7, align 8, !tbaa !5
  store i64 %2, ptr %8, align 8, !tbaa !9
  store i64 %3, ptr %9, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  %13 = load ptr, ptr %6, align 8, !tbaa !5
  %14 = load i64, ptr %8, align 8, !tbaa !9
  %15 = load i64, ptr %9, align 8, !tbaa !9
  %16 = call noundef ptr @_ZN2sm16GenericAllocator5AllocEPvmm(ptr noundef %13, i64 noundef %14, i64 noundef %15)
  store ptr %16, ptr %10, align 8, !tbaa !5
  %17 = load ptr, ptr %10, align 8, !tbaa !5
  %18 = icmp ne ptr %17, null
  br i1 %18, label %20, label %19

19:                                               ; preds = %4
  store ptr null, ptr %5, align 8
  store i32 1, ptr %11, align 4
  br label %35

20:                                               ; preds = %4
  %21 = load ptr, ptr %7, align 8, !tbaa !5
  %22 = icmp ne ptr %21, null
  br i1 %22, label %23, label %31

23:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = load ptr, ptr %7, align 8, !tbaa !5
  %26 = call noundef i64 @_ZN2sm16GenericAllocator14GetUsableSpaceEPvS1_(ptr noundef %24, ptr noundef %25)
  store i64 %26, ptr %12, align 8, !tbaa !9
  %27 = load ptr, ptr %10, align 8, !tbaa !5
  %28 = load ptr, ptr %7, align 8, !tbaa !5
  %29 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minImERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %12, ptr noundef nonnull align 8 dereferenceable(8) %8)
  %30 = load i64, ptr %29, align 8, !tbaa !9
  call void @llvm.memmove.p0.p0.i64(ptr align 1 %27, ptr align 1 %28, i64 %30, i1 false)
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  br label %31

31:                                               ; preds = %23, %20
  %32 = load ptr, ptr %6, align 8, !tbaa !5
  %33 = load ptr, ptr %7, align 8, !tbaa !5
  call void @_ZN2sm16GenericAllocator4FreeEPvS1_(ptr noundef %32, ptr noundef %33)
  %34 = load ptr, ptr %10, align 8, !tbaa !5
  store ptr %34, ptr %5, align 8
  store i32 1, ptr %11, align 4
  br label %35

35:                                               ; preds = %31, %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  %36 = load ptr, ptr %5, align 8
  ret ptr %36
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN2sm16GenericAllocator14GetUsableSpaceEPvS1_(ptr noundef, ptr noundef) #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minImERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memmove.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #4

attributes #0 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #4 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !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"

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef ptr @_ZN2sm16GenericAllocator5AllocEPvmm(ptr noundef, i64 noundef, i64 noundef) local_unnamed_addr #0 align 2

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN2sm16GenericAllocator4FreeEPvS1_(ptr noundef, ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef ptr @_ZN2sm16GenericAllocator7ReallocEPvS1_mm(ptr noundef %0, ptr noundef %1, i64 noundef %2, i64 noundef %3) local_unnamed_addr #0 align 2 {
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  store i64 %2, ptr %5, align 8, !tbaa !5
  %7 = tail call noundef ptr @_ZN2sm16GenericAllocator5AllocEPvmm(ptr noundef %0, i64 noundef %2, i64 noundef %3)
  %.not = icmp eq ptr %7, null
  br i1 %.not, label %14, label %8

8:                                                ; preds = %4
  %.not13 = icmp eq ptr %1, null
  br i1 %.not13, label %13, label %9

9:                                                ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  %10 = tail call noundef i64 @_ZN2sm16GenericAllocator14GetUsableSpaceEPvS1_(ptr noundef %0, ptr noundef nonnull %1)
  store i64 %10, ptr %6, align 8, !tbaa !5
  %11 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minImERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %5)
  %12 = load i64, ptr %11, align 8, !tbaa !5
  call void @llvm.memmove.p0.p0.i64(ptr nonnull align 1 %7, ptr nonnull align 1 %1, i64 %12, i1 false)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  br label %13

13:                                               ; preds = %9, %8
  call void @_ZN2sm16GenericAllocator4FreeEPvS1_(ptr noundef %0, ptr noundef %1)
  br label %14

14:                                               ; preds = %4, %13
  ret ptr %7
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZN2sm16GenericAllocator14GetUsableSpaceEPvS1_(ptr noundef, ptr noundef) local_unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minImERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memmove.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #3

attributes #0 = { 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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