; LLVM IR from jgaeddert/liquid-dsp :: src/buffer/src (buffercf)

; 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.wdelaycf_s = type { ptr, i32, i32 }

@.str.1 = external hidden unnamed_addr constant [54 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.19 = external hidden unnamed_addr constant [84 x i8], align 1

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

declare ptr @liquid_error_config_fl(ptr noundef, i32 noundef, ptr noundef, ...) #2

; 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) #3

; Function Attrs: nounwind uwtable
define dso_local ptr @wdelaycf_copy(ptr noundef %0) #4 {
  %2 = alloca ptr, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %7, label %9

7:                                                ; preds = %1
  %8 = call ptr (ptr, i32, ptr, ...) @liquid_error_config_fl(ptr noundef @.str.19, i32 noundef 91, ptr noundef @.str.1, ptr noundef @.str.2)
  store ptr %8, ptr %2, align 8
  br label %35

9:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %10 = call noalias ptr @malloc(i64 noundef 16) #6
  store ptr %10, ptr %4, align 8, !tbaa !5
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = load ptr, ptr %3, align 8, !tbaa !5
  call void @llvm.memmove.p0.p0.i64(ptr align 8 %11, ptr align 8 %12, i64 16, i1 false)
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = getelementptr inbounds %struct.wdelaycf_s, ptr %13, i32 0, i32 1
  %15 = load i32, ptr %14, align 8, !tbaa !9
  %16 = add i32 %15, 1
  %17 = zext i32 %16 to i64
  %18 = mul i64 %17, 8
  %19 = call noalias ptr @malloc(i64 noundef %18) #6
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.wdelaycf_s, ptr %20, i32 0, i32 0
  store ptr %19, ptr %21, align 8, !tbaa !12
  %22 = load ptr, ptr %4, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.wdelaycf_s, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !12
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.wdelaycf_s, ptr %25, i32 0, i32 0
  %27 = load ptr, ptr %26, align 8, !tbaa !12
  %28 = load ptr, ptr %4, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.wdelaycf_s, ptr %28, i32 0, i32 1
  %30 = load i32, ptr %29, align 8, !tbaa !9
  %31 = add i32 %30, 1
  %32 = zext i32 %31 to i64
  %33 = mul i64 %32, 8
  call void @llvm.memmove.p0.p0.i64(ptr align 4 %24, ptr align 4 %27, i64 %33, i1 false)
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  store ptr %34, ptr %2, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  br label %35

35:                                               ; preds = %9, %7
  %36 = load ptr, ptr %2, align 8
  ret ptr %36
}

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 = { "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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 #5 = { nounwind }
attributes #6 = { 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, !11, i64 8}
!10 = !{!"wdelaycf_s", !6, i64 0, !11, i64 8, !11, i64 12}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, 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"

@.str.1 = external hidden unnamed_addr constant [54 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.19 = external hidden unnamed_addr constant [84 x i8], align 1

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

declare ptr @liquid_error_config_fl(ptr noundef, i32 noundef, ptr noundef, ...) local_unnamed_addr #1

; 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) #2

; Function Attrs: nounwind uwtable
define dso_local ptr @wdelaycf_copy(ptr noundef readonly %0) local_unnamed_addr #3 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %3, label %5

3:                                                ; preds = %1
  %4 = tail call ptr (ptr, i32, ptr, ...) @liquid_error_config_fl(ptr noundef nonnull @.str.19, i32 noundef 91, ptr noundef nonnull @.str.1, ptr noundef nonnull @.str.2) #5
  br label %14

5:                                                ; preds = %1
  %6 = tail call noalias dereferenceable_or_null(16) ptr @malloc(i64 noundef 16) #6
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %6, ptr noundef nonnull align 8 dereferenceable(16) %0, i64 16, i1 false)
  %7 = getelementptr inbounds i8, ptr %6, i64 8
  %8 = load i32, ptr %7, align 8, !tbaa !5
  %9 = add i32 %8, 1
  %10 = zext i32 %9 to i64
  %11 = shl nuw nsw i64 %10, 3
  %12 = tail call noalias ptr @malloc(i64 noundef %11) #6
  store ptr %12, ptr %6, align 8, !tbaa !11
  %13 = load ptr, ptr %0, align 8, !tbaa !11
  tail call void @llvm.memmove.p0.p0.i64(ptr align 4 %12, ptr align 4 %13, i64 %11, i1 false)
  br label %14

14:                                               ; preds = %5, %3
  %.0 = phi ptr [ %4, %3 ], [ %6, %5 ]
  ret ptr %.0
}

; 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) #4

attributes #0 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 = { mustprogress 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nounwind }
attributes #6 = { 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, !10, i64 8}
!6 = !{!"wdelaycf_s", !7, i64 0, !10, i64 8, !10, i64 12}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass