; LLVM IR from fhanau/Efficient-Compression-Tool :: src (LzFind)

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

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

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @CopyMF(ptr noundef %0, ptr noundef %1) #2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %5 = call noalias ptr @malloc(i64 noundef 393216) #4
  %6 = load ptr, ptr %4, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct._CMatchFinder, ptr %6, i32 0, i32 4
  store ptr %5, ptr %7, align 8, !tbaa !9
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct._CMatchFinder, ptr %8, i32 0, i32 4
  %10 = load ptr, ptr %9, align 8, !tbaa !9
  %11 = icmp ne ptr %10, null
  br i1 %11, label %13, label %12

12:                                               ; preds = %2
  call void @exit(i32 noundef 1) #5
  unreachable

13:                                               ; preds = %2
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct._CMatchFinder, ptr %14, i32 0, i32 4
  %16 = load ptr, ptr %15, align 8, !tbaa !9
  %17 = getelementptr inbounds i32, ptr %16, i64 32768
  %18 = load ptr, ptr %4, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct._CMatchFinder, ptr %18, i32 0, i32 5
  store ptr %17, ptr %19, align 8, !tbaa !12
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct._CMatchFinder, ptr %20, i32 0, i32 4
  %22 = load ptr, ptr %21, align 8, !tbaa !9
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct._CMatchFinder, ptr %23, i32 0, i32 4
  %25 = load ptr, ptr %24, align 8, !tbaa !9
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %22, ptr align 4 %25, i64 393216, i1 false)
  %26 = load ptr, ptr %3, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct._CMatchFinder, ptr %26, i32 0, i32 3
  %28 = load i32, ptr %27, align 4, !tbaa !13
  %29 = load ptr, ptr %4, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct._CMatchFinder, ptr %29, i32 0, i32 3
  store i32 %28, ptr %30, align 4, !tbaa !13
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct._CMatchFinder, ptr %31, i32 0, i32 2
  %33 = load i32, ptr %32, align 8, !tbaa !14
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct._CMatchFinder, ptr %34, i32 0, i32 2
  store i32 %33, ptr %35, align 8, !tbaa !14
  %36 = load ptr, ptr %3, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct._CMatchFinder, ptr %36, i32 0, i32 0
  %38 = load ptr, ptr %37, align 8, !tbaa !15
  %39 = load ptr, ptr %4, align 8, !tbaa !5
  %40 = getelementptr inbounds %struct._CMatchFinder, ptr %39, i32 0, i32 0
  store ptr %38, ptr %40, align 8, !tbaa !15
  ret void
}

; 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) #3

attributes #0 = { 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 #1 = { noreturn 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 #2 = { 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind allocsize(0) }
attributes #5 = { noreturn 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/C++ TBAA"}
!9 = !{!10, !6, i64 24}
!10 = !{!"_CMatchFinder", !6, i64 0, !6, i64 8, !11, i64 16, !11, i64 20, !6, i64 24, !6, i64 32}
!11 = !{!"int", !7, i64 0}
!12 = !{!10, !6, i64 32}
!13 = !{!10, !11, i64 20}
!14 = !{!10, !11, i64 16}
!15 = !{!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"

; 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

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @CopyMF(ptr nocapture noundef readonly %0, ptr nocapture noundef writeonly %1) local_unnamed_addr #2 {
  %3 = tail call noalias dereferenceable_or_null(393216) ptr @malloc(i64 noundef 393216) #4
  %4 = getelementptr inbounds i8, ptr %1, i64 24
  store ptr %3, ptr %4, align 8, !tbaa !5
  %.not = icmp eq ptr %3, null
  br i1 %.not, label %5, label %6

5:                                                ; preds = %2
  tail call void @exit(i32 noundef 1) #5
  unreachable

6:                                                ; preds = %2
  %7 = getelementptr inbounds i8, ptr %3, i64 131072
  %8 = getelementptr inbounds i8, ptr %1, i64 32
  store ptr %7, ptr %8, align 8, !tbaa !11
  %9 = getelementptr inbounds i8, ptr %0, i64 24
  %10 = load ptr, ptr %9, align 8, !tbaa !5
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(393216) %3, ptr noundef nonnull align 4 dereferenceable(393216) %10, i64 393216, i1 false)
  %11 = getelementptr inbounds i8, ptr %0, i64 16
  %12 = getelementptr inbounds i8, ptr %1, i64 16
  %13 = load <2 x i32>, ptr %11, align 8, !tbaa !12
  store <2 x i32> %13, ptr %12, align 8, !tbaa !12
  %14 = load ptr, ptr %0, align 8, !tbaa !13
  store ptr %14, ptr %1, align 8, !tbaa !13
  ret void
}

; Function Attrs: mustprogress 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) #3

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 = { noreturn 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 #2 = { 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 allocsize(0) }
attributes #5 = { noreturn 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, !7, i64 24}
!6 = !{!"_CMatchFinder", !7, i64 0, !7, i64 8, !10, i64 16, !10, i64 20, !7, i64 24, !7, i64 32}
!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 32}
!12 = !{!10, !10, i64 0}
!13 = !{!6, !7, i64 0}


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