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

; 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: 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

; Function Attrs: noreturn nounwind
declare void @exit(i32 noundef) #2

; Function Attrs: nounwind uwtable
declare hidden void @LZ77OptimalRun(ptr noundef, ptr noundef, i64 noundef, i64 noundef, ptr noundef, ptr noundef, ptr noundef, i8 noundef zeroext, ptr noundef, i32 noundef, i32 noundef) #3

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

; Function Attrs: nounwind uwtable
define dso_local void @ZopfliLZ77OptimalFixed(ptr noundef %0, ptr noundef %1, i64 noundef %2, i64 noundef %3, ptr noundef %4, i32 noundef %5) #3 {
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca ptr, align 8
  store ptr %0, ptr %7, align 8, !tbaa !5
  store ptr %1, ptr %8, align 8, !tbaa !5
  store i64 %2, ptr %9, align 8, !tbaa !9
  store i64 %3, ptr %10, align 8, !tbaa !9
  store ptr %4, ptr %11, align 8, !tbaa !5
  store i32 %5, ptr %12, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #5
  %14 = load i64, ptr %10, align 8, !tbaa !9
  %15 = load i64, ptr %9, align 8, !tbaa !9
  %16 = sub i64 %14, %15
  %17 = add i64 %16, 1
  %18 = mul i64 4, %17
  %19 = call noalias ptr @malloc(i64 noundef %18) #6
  store ptr %19, ptr %13, align 8, !tbaa !5
  %20 = load ptr, ptr %13, align 8, !tbaa !5
  %21 = icmp ne ptr %20, null
  br i1 %21, label %23, label %22

22:                                               ; preds = %6
  call void @exit(i32 noundef 1) #7
  unreachable

23:                                               ; preds = %6
  %24 = load ptr, ptr %7, align 8, !tbaa !5
  %25 = load ptr, ptr %8, align 8, !tbaa !5
  %26 = load i64, ptr %9, align 8, !tbaa !9
  %27 = load i64, ptr %10, align 8, !tbaa !9
  %28 = load ptr, ptr %13, align 8, !tbaa !5
  %29 = load ptr, ptr %11, align 8, !tbaa !5
  %30 = load i32, ptr %12, align 4, !tbaa !11
  call void @LZ77OptimalRun(ptr noundef %24, ptr noundef %25, i64 noundef %26, i64 noundef %27, ptr noundef %28, ptr noundef null, ptr noundef %29, i8 noundef zeroext 0, ptr noundef null, i32 noundef %30, i32 noundef 0)
  %31 = load ptr, ptr %13, align 8, !tbaa !5
  call void @free(ptr noundef %31) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #5
  ret void
}

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 = { 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 #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 "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) }
attributes #7 = { 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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"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 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
declare hidden void @LZ77OptimalRun(ptr noundef, ptr noundef, i64 noundef, i64 noundef, ptr noundef, ptr noundef, ptr noundef, i8 noundef zeroext, ptr 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: nounwind uwtable
define dso_local void @ZopfliLZ77OptimalFixed(ptr noundef %0, ptr noundef %1, i64 noundef %2, i64 noundef %3, ptr noundef %4, i32 noundef %5) local_unnamed_addr #2 {
  %7 = sub i64 %3, %2
  %8 = shl i64 %7, 2
  %9 = add i64 %8, 4
  %10 = tail call noalias ptr @malloc(i64 noundef %9) #4
  %.not = icmp eq ptr %10, null
  br i1 %.not, label %11, label %12

11:                                               ; preds = %6
  tail call void @exit(i32 noundef 1) #5
  unreachable

12:                                               ; preds = %6
  tail call void @LZ77OptimalRun(ptr noundef %0, ptr noundef %1, i64 noundef %2, i64 noundef %3, ptr noundef nonnull %10, ptr noundef null, ptr noundef %4, i8 noundef zeroext 0, ptr noundef null, i32 noundef %5, i32 noundef 0)
  tail call void @free(ptr noundef nonnull %10) #6
  ret void
}

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 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 = { nounwind allocsize(0) }
attributes #5 = { noreturn nounwind }
attributes #6 = { 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)"}


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