; LLVM IR from ek9852/faceldp :: src/face_detect.ll (Z20face_detector_createiii)

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

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z20face_detector_createiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  store i32 %0, ptr %5, align 4, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  %10 = call noalias ptr @calloc(i64 noundef 1, i64 noundef 24) #7
  store ptr %10, ptr %8, align 8, !tbaa !9
  %11 = load i32, ptr %5, align 4, !tbaa !5
  %12 = load i32, ptr %6, align 4, !tbaa !5
  %13 = load i32, ptr %7, align 4, !tbaa !5
  %14 = call noundef ptr @_Z24face_detector_lbp_createiii(i32 noundef %11, i32 noundef %12, i32 noundef %13)
  %15 = load ptr, ptr %8, align 8, !tbaa !9
  %16 = getelementptr inbounds %struct.face_det, ptr %15, i32 0, i32 0
  store ptr %14, ptr %16, align 8, !tbaa !11
  %17 = load ptr, ptr %8, align 8, !tbaa !9
  %18 = getelementptr inbounds %struct.face_det, ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !11
  %20 = icmp ne ptr %19, null
  br i1 %20, label %23, label %21

21:                                               ; preds = %3
  %22 = load ptr, ptr %8, align 8, !tbaa !9
  call void @free(ptr noundef %22) #6
  store ptr null, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %39

23:                                               ; preds = %3
  %24 = load i32, ptr %5, align 4, !tbaa !5
  %25 = load ptr, ptr %8, align 8, !tbaa !9
  %26 = getelementptr inbounds %struct.face_det, ptr %25, i32 0, i32 1
  store i32 %24, ptr %26, align 8, !tbaa !13
  %27 = load i32, ptr %6, align 4, !tbaa !5
  %28 = load ptr, ptr %8, align 8, !tbaa !9
  %29 = getelementptr inbounds %struct.face_det, ptr %28, i32 0, i32 2
  store i32 %27, ptr %29, align 4, !tbaa !14
  %30 = load i32, ptr %5, align 4, !tbaa !5
  %31 = load i32, ptr %6, align 4, !tbaa !5
  %32 = mul nsw i32 %30, %31
  %33 = sext i32 %32 to i64
  %34 = mul i64 %33, 4
  %35 = call noalias ptr @malloc(i64 noundef %34) #8
  %36 = load ptr, ptr %8, align 8, !tbaa !9
  %37 = getelementptr inbounds %struct.face_det, ptr %36, i32 0, i32 3
  store ptr %35, ptr %37, align 8, !tbaa !15
  %38 = load ptr, ptr %8, align 8, !tbaa !9
  store ptr %38, ptr %4, align 8
  store i32 1, ptr %9, align 4
  br label %39

39:                                               ; preds = %23, %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  %40 = load ptr, ptr %4, align 8
  ret ptr %40
}

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

; Function Attrs: nounwind allocsize(0,1)
declare noalias ptr @calloc(i64 noundef, i64 noundef) #2

declare noundef ptr @_Z24face_detector_lbp_createiii(i32 noundef, i32 noundef, i32 noundef) #3

; Function Attrs: nounwind
declare void @free(ptr noundef) #4

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #5

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind allocsize(0,1) "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 #3 = { "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 "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 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 #6 = { nounwind }
attributes #7 = { nounwind allocsize(0,1) }
attributes #8 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS8face_det", !10, i64 0, !6, i64 8, !6, i64 12, !10, i64 16}
!13 = !{!12, !6, i64 8}
!14 = !{!12, !6, i64 12}
!15 = !{!12, !10, i64 16}


; 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 uwtable
define dso_local noalias noundef ptr @_Z20face_detector_createiii(i32 noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = tail call noalias dereferenceable_or_null(24) ptr @calloc(i64 noundef 1, i64 noundef 24) #5
  %5 = tail call noundef ptr @_Z24face_detector_lbp_createiii(i32 noundef %0, i32 noundef %1, i32 noundef %2)
  store ptr %5, ptr %4, align 8, !tbaa !5
  %.not = icmp eq ptr %5, null
  br i1 %.not, label %6, label %7

6:                                                ; preds = %3
  tail call void @free(ptr noundef nonnull %4) #6
  br label %15

7:                                                ; preds = %3
  %8 = getelementptr inbounds i8, ptr %4, i64 8
  store i32 %0, ptr %8, align 8, !tbaa !11
  %9 = getelementptr inbounds i8, ptr %4, i64 12
  store i32 %1, ptr %9, align 4, !tbaa !12
  %10 = mul nsw i32 %1, %0
  %11 = sext i32 %10 to i64
  %12 = shl nsw i64 %11, 2
  %13 = tail call noalias ptr @malloc(i64 noundef %12) #7
  %14 = getelementptr inbounds i8, ptr %4, i64 16
  store ptr %13, ptr %14, align 8, !tbaa !13
  br label %15

15:                                               ; preds = %7, %6
  %.0 = phi ptr [ %4, %7 ], [ null, %6 ]
  ret ptr %.0
}

; Function Attrs: mustprogress 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

declare noundef ptr @_Z24face_detector_lbp_createiii(i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #4

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 = { mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) 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 #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 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, 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 #4 = { 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 #5 = { nounwind allocsize(0,1) }
attributes #6 = { nounwind }
attributes #7 = { 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, !7, i64 0}
!6 = !{!"_ZTS8face_det", !7, i64 0, !10, i64 8, !10, i64 12, !7, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!6, !10, i64 12}
!13 = !{!6, !7, i64 16}


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