; LLVM IR from BoysTownOrg/chapro :: cha_core (cha_prepare)

; 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: nounwind uwtable
define dso_local void @cha_prepare(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = getelementptr inbounds ptr, ptr %3, i64 0
  %5 = load ptr, ptr %4, align 8, !tbaa !5
  %6 = icmp eq ptr %5, null
  br i1 %6, label %7, label %29

7:                                                ; preds = %1
  %8 = call noalias ptr @calloc(i64 noundef 64, i64 noundef 4) #2
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds ptr, ptr %9, i64 0
  store ptr %8, ptr %10, align 8, !tbaa !5
  %11 = call noalias ptr @calloc(i64 noundef 32, i64 noundef 4) #2
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds ptr, ptr %12, i64 1
  store ptr %11, ptr %13, align 8, !tbaa !5
  %14 = call noalias ptr @calloc(i64 noundef 32, i64 noundef 8) #2
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = getelementptr inbounds ptr, ptr %15, i64 2
  store ptr %14, ptr %16, align 8, !tbaa !5
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = getelementptr inbounds ptr, ptr %17, i64 0
  %19 = load ptr, ptr %18, align 8, !tbaa !5
  %20 = getelementptr inbounds i32, ptr %19, i64 0
  store i32 256, ptr %20, align 4, !tbaa !9
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds ptr, ptr %21, i64 0
  %23 = load ptr, ptr %22, align 8, !tbaa !5
  %24 = getelementptr inbounds i32, ptr %23, i64 1
  store i32 128, ptr %24, align 4, !tbaa !9
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = getelementptr inbounds ptr, ptr %25, i64 0
  %27 = load ptr, ptr %26, align 8, !tbaa !5
  %28 = getelementptr inbounds i32, ptr %27, i64 2
  store i32 256, ptr %28, align 4, !tbaa !9
  br label %29

29:                                               ; preds = %7, %1
  ret void
}

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

!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: mustprogress nofree nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: readwrite) uwtable
define dso_local void @cha_prepare(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = load ptr, ptr %0, align 8, !tbaa !5
  %3 = icmp eq ptr %2, null
  br i1 %3, label %4, label %12

4:                                                ; preds = %1
  %5 = tail call noalias dereferenceable_or_null(256) ptr @calloc(i64 noundef 64, i64 noundef 4) #2
  store ptr %5, ptr %0, align 8, !tbaa !5
  %6 = tail call noalias dereferenceable_or_null(128) ptr @calloc(i64 noundef 32, i64 noundef 4) #2
  %7 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr %6, ptr %7, align 8, !tbaa !5
  %8 = tail call noalias dereferenceable_or_null(256) ptr @calloc(i64 noundef 32, i64 noundef 8) #2
  %9 = getelementptr inbounds i8, ptr %0, i64 16
  store ptr %8, ptr %9, align 8, !tbaa !5
  store i32 256, ptr %5, align 4, !tbaa !9
  %10 = getelementptr inbounds i8, ptr %5, i64 4
  store i32 128, ptr %10, align 4, !tbaa !9
  %11 = getelementptr inbounds i8, ptr %5, i64 8
  store i32 256, ptr %11, align 4, !tbaa !9
  br label %12

12:                                               ; preds = %4, %1
  ret void
}

; 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

attributes #0 = { mustprogress nofree nounwind willreturn memory(write, argmem: readwrite, inaccessiblemem: readwrite) 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 = { nounwind allocsize(0,1) }

!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}


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