; LLVM IR from octu0/blurry :: buffer (create_pcm16_buffer)

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

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

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

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

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

; Function Attrs: nounwind uwtable
define dso_local ptr @create_pcm16_buffer(ptr noundef %0, i32 noundef %1) #3 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca ptr, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 1, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  %10 = call noalias ptr @malloc(i64 noundef 56) #5
  store ptr %10, ptr %7, align 8, !tbaa !5
  %11 = load ptr, ptr %7, align 8, !tbaa !5
  %12 = icmp eq ptr %11, null
  br i1 %12, label %13, label %14

13:                                               ; preds = %2
  store ptr null, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %37

14:                                               ; preds = %2
  %15 = load ptr, ptr %7, align 8, !tbaa !5
  call void @llvm.memset.p0.i64(ptr align 8 %15, i8 0, i64 56, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %16 = load i32, ptr %6, align 4, !tbaa !9
  %17 = sext i32 %16 to i64
  %18 = mul i64 %17, 16
  %19 = call noalias ptr @malloc(i64 noundef %18) #5
  store ptr %19, ptr %9, align 8, !tbaa !5
  %20 = load ptr, ptr %9, align 8, !tbaa !5
  %21 = icmp eq ptr %20, null
  br i1 %21, label %22, label %24

22:                                               ; preds = %14
  %23 = load ptr, ptr %7, align 8, !tbaa !5
  call void @free_buf(ptr noundef %23)
  store ptr null, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %36

24:                                               ; preds = %14
  %25 = load ptr, ptr %9, align 8, !tbaa !5
  %26 = load i32, ptr %6, align 4, !tbaa !9
  %27 = sext i32 %26 to i64
  %28 = mul i64 %27, 16
  call void @llvm.memset.p0.i64(ptr align 4 %25, i8 0, i64 %28, i1 false)
  %29 = load ptr, ptr %9, align 8, !tbaa !5
  %30 = load i32, ptr %5, align 4, !tbaa !9
  call void @init_1darray_dim(ptr noundef %29, i32 noundef %30)
  %31 = load ptr, ptr %7, align 8, !tbaa !5
  %32 = load ptr, ptr %9, align 8, !tbaa !5
  %33 = load ptr, ptr %4, align 8, !tbaa !5
  %34 = load i32, ptr %6, align 4, !tbaa !9
  call void @init_int16_buf(ptr noundef %31, ptr noundef %32, ptr noundef %33, i32 noundef %34)
  %35 = load ptr, ptr %7, align 8, !tbaa !5
  store ptr %35, ptr %3, align 8
  store i32 1, ptr %8, align 4
  br label %36

36:                                               ; preds = %24, %22
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  br label %37

37:                                               ; preds = %36, %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  %38 = load ptr, ptr %3, align 8
  ret ptr %38
}

; Function Attrs: nounwind uwtable
declare dso_local void @init_1darray_dim(ptr noundef, i32 noundef) #3

; Function Attrs: nounwind uwtable
declare dso_local void @init_int16_buf(ptr noundef, ptr noundef, ptr noundef, i32 noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind allocsize(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 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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 }
attributes #5 = { nounwind allocsize(0) }

!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, !10, i64 0}
!10 = !{!"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"

; Function Attrs: nounwind uwtable
declare dso_local void @free_buf(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef ptr @create_pcm16_buffer(ptr noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %calloc16 = tail call dereferenceable_or_null(56) ptr @calloc(i64 1, i64 56)
  %3 = icmp eq ptr %calloc16, null
  br i1 %3, label %8, label %4

4:                                                ; preds = %2
  %calloc = tail call dereferenceable_or_null(16) ptr @calloc(i64 1, i64 16)
  %5 = icmp eq ptr %calloc, null
  br i1 %5, label %6, label %7

6:                                                ; preds = %4
  tail call void @free_buf(ptr noundef nonnull %calloc16)
  br label %8

7:                                                ; preds = %4
  tail call void @init_1darray_dim(ptr noundef nonnull %calloc, i32 noundef %1)
  tail call void @init_int16_buf(ptr noundef nonnull %calloc16, ptr noundef nonnull %calloc, ptr noundef %0, i32 noundef 1)
  br label %8

8:                                                ; preds = %6, %7, %2
  %.1 = phi ptr [ null, %2 ], [ null, %6 ], [ %calloc16, %7 ]
  ret ptr %.1
}

; Function Attrs: nounwind uwtable
declare dso_local void @init_1darray_dim(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @init_int16_buf(ptr noundef, ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @calloc(i64 noundef, i64 noundef) local_unnamed_addr #1

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 = { nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" }

!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: DSEPass,EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass