; LLVM IR from glaretechnologies/substrata :: opus/opus-1.3.1/celt (entenc)

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

; Function Attrs: nounwind uwtable
define dso_local void @ec_enc_shrink(ptr noundef %0, i32 noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !9
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.ec_ctx, ptr %5, i32 0, i32 0
  %7 = load ptr, ptr %6, align 8, !tbaa !11
  %8 = load i32, ptr %4, align 4, !tbaa !9
  %9 = zext i32 %8 to i64
  %10 = getelementptr inbounds i8, ptr %7, i64 %9
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.ec_ctx, ptr %11, i32 0, i32 2
  %13 = load i32, ptr %12, align 4, !tbaa !13
  %14 = zext i32 %13 to i64
  %15 = sub i64 0, %14
  %16 = getelementptr inbounds i8, ptr %10, i64 %15
  %17 = load ptr, ptr %3, align 8, !tbaa !5
  %18 = getelementptr inbounds %struct.ec_ctx, ptr %17, i32 0, i32 0
  %19 = load ptr, ptr %18, align 8, !tbaa !11
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.ec_ctx, ptr %20, i32 0, i32 1
  %22 = load i32, ptr %21, align 8, !tbaa !14
  %23 = zext i32 %22 to i64
  %24 = getelementptr inbounds i8, ptr %19, i64 %23
  %25 = load ptr, ptr %3, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.ec_ctx, ptr %25, i32 0, i32 2
  %27 = load i32, ptr %26, align 4, !tbaa !13
  %28 = zext i32 %27 to i64
  %29 = sub i64 0, %28
  %30 = getelementptr inbounds i8, ptr %24, i64 %29
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.ec_ctx, ptr %31, i32 0, i32 2
  %33 = load i32, ptr %32, align 4, !tbaa !13
  %34 = zext i32 %33 to i64
  %35 = mul i64 %34, 1
  %36 = load ptr, ptr %3, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.ec_ctx, ptr %36, i32 0, i32 0
  %38 = load ptr, ptr %37, align 8, !tbaa !11
  %39 = load i32, ptr %4, align 4, !tbaa !9
  %40 = zext i32 %39 to i64
  %41 = getelementptr inbounds i8, ptr %38, i64 %40
  %42 = load ptr, ptr %3, align 8, !tbaa !5
  %43 = getelementptr inbounds %struct.ec_ctx, ptr %42, i32 0, i32 2
  %44 = load i32, ptr %43, align 4, !tbaa !13
  %45 = zext i32 %44 to i64
  %46 = sub i64 0, %45
  %47 = getelementptr inbounds i8, ptr %41, i64 %46
  %48 = load ptr, ptr %3, align 8, !tbaa !5
  %49 = getelementptr inbounds %struct.ec_ctx, ptr %48, i32 0, i32 0
  %50 = load ptr, ptr %49, align 8, !tbaa !11
  %51 = load ptr, ptr %3, align 8, !tbaa !5
  %52 = getelementptr inbounds %struct.ec_ctx, ptr %51, i32 0, i32 1
  %53 = load i32, ptr %52, align 8, !tbaa !14
  %54 = zext i32 %53 to i64
  %55 = getelementptr inbounds i8, ptr %50, i64 %54
  %56 = load ptr, ptr %3, align 8, !tbaa !5
  %57 = getelementptr inbounds %struct.ec_ctx, ptr %56, i32 0, i32 2
  %58 = load i32, ptr %57, align 4, !tbaa !13
  %59 = zext i32 %58 to i64
  %60 = sub i64 0, %59
  %61 = getelementptr inbounds i8, ptr %55, i64 %60
  %62 = ptrtoint ptr %47 to i64
  %63 = ptrtoint ptr %61 to i64
  %64 = sub i64 %62, %63
  %65 = mul nsw i64 0, %64
  %66 = add i64 %35, %65
  call void @llvm.memmove.p0.p0.i64(ptr align 1 %16, ptr align 1 %30, i64 %66, i1 false)
  %67 = load i32, ptr %4, align 4, !tbaa !9
  %68 = load ptr, ptr %3, align 8, !tbaa !5
  %69 = getelementptr inbounds %struct.ec_ctx, ptr %68, i32 0, i32 1
  store i32 %67, ptr %69, align 8, !tbaa !14
  ret void
}

; 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) #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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }

!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}
!11 = !{!12, !6, i64 0}
!12 = !{!"ec_ctx", !6, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !10, i64 40, !10, i64 44, !10, i64 48}
!13 = !{!12, !10, i64 12}
!14 = !{!12, !10, i64 8}


; 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 norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) uwtable
define dso_local void @ec_enc_shrink(ptr nocapture noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = load ptr, ptr %0, align 8, !tbaa !5
  %4 = zext i32 %1 to i64
  %5 = getelementptr inbounds i8, ptr %3, i64 %4
  %6 = getelementptr inbounds i8, ptr %0, i64 12
  %7 = load i32, ptr %6, align 4, !tbaa !11
  %8 = zext i32 %7 to i64
  %9 = sub nsw i64 0, %8
  %10 = getelementptr inbounds i8, ptr %5, i64 %9
  %11 = getelementptr inbounds i8, ptr %0, i64 8
  %12 = load i32, ptr %11, align 8, !tbaa !12
  %13 = zext i32 %12 to i64
  %14 = getelementptr inbounds i8, ptr %3, i64 %13
  %15 = getelementptr inbounds i8, ptr %14, i64 %9
  tail call void @llvm.memmove.p0.p0.i64(ptr align 1 %10, ptr align 1 %15, i64 %8, i1 false)
  store i32 %1, ptr %11, align 8, !tbaa !12
  ret void
}

; 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) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, inaccessiblemem: none) 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 nocallback nofree nounwind willreturn memory(argmem: readwrite) }

!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 = !{!"ec_ctx", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20, !10, i64 24, !10, i64 28, !10, i64 32, !10, i64 36, !10, i64 40, !10, i64 44, !10, i64 48}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 12}
!12 = !{!6, !10, i64 8}


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