; LLVM IR from Ryuk17/SpeechAlgorithms :: Goertzel/DtmfDetector.ll (ZN12DtmfDetectorC2Ei)

; 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"

%class.DtmfDetector = type <{ %class.DtmfDetectorInterface.base, [6 x i8], ptr, [18 x i32], ptr, i32, i32, i8, i8, [6 x i8] }>
%class.DtmfDetectorInterface.base = type <{ [65 x i8], [7 x i8], ptr, i16 }>

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN12DtmfDetectorC2Ei(ptr noundef nonnull align 8 dereferenceable(186) %0, i32 noundef %1) unnamed_addr #0 align 2 {
  %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
  call void @_ZN21DtmfDetectorInterfaceC2Ev(ptr noundef nonnull align 8 dereferenceable(82) %5)
  %6 = getelementptr inbounds %class.DtmfDetector, ptr %5, i32 0, i32 5
  %7 = load i32, ptr %4, align 4, !tbaa !9
  store i32 %7, ptr %6, align 8, !tbaa !11
  %8 = getelementptr inbounds %class.DtmfDetector, ptr %5, i32 0, i32 5
  %9 = load i32, ptr %8, align 8, !tbaa !11
  %10 = add nsw i32 %9, 102
  %11 = sext i32 %10 to i64
  %12 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %11, i64 2)
  %13 = extractvalue { i64, i1 } %12, 1
  %14 = extractvalue { i64, i1 } %12, 0
  %15 = select i1 %13, i64 -1, i64 %14
  %16 = call noalias noundef nonnull ptr @_Znam(i64 noundef %15) #4
  %17 = getelementptr inbounds %class.DtmfDetector, ptr %5, i32 0, i32 2
  store ptr %16, ptr %17, align 8, !tbaa !15
  %18 = call noalias noundef nonnull ptr @_Znam(i64 noundef 204) #4
  %19 = getelementptr inbounds %class.DtmfDetector, ptr %5, i32 0, i32 4
  store ptr %18, ptr %19, align 8, !tbaa !16
  %20 = getelementptr inbounds %class.DtmfDetector, ptr %5, i32 0, i32 6
  store i32 0, ptr %20, align 4, !tbaa !17
  %21 = getelementptr inbounds %class.DtmfDetector, ptr %5, i32 0, i32 7
  store i8 32, ptr %21, align 8, !tbaa !18
  %22 = getelementptr inbounds %class.DtmfDetector, ptr %5, i32 0, i32 8
  store i8 0, ptr %22, align 1, !tbaa !19
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN21DtmfDetectorInterfaceC2Ev(ptr noundef nonnull align 8 dereferenceable(82)) unnamed_addr #1 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #3

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 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 #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { nobuiltin 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 #4 = { builtin 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 176}
!12 = !{!"_ZTS12DtmfDetector", !13, i64 0, !6, i64 88, !7, i64 96, !6, i64 168, !10, i64 176, !10, i64 180, !7, i64 184, !7, i64 185}
!13 = !{!"_ZTS21DtmfDetectorInterface", !7, i64 0, !6, i64 72, !14, i64 80}
!14 = !{!"short", !7, i64 0}
!15 = !{!12, !6, i64 88}
!16 = !{!12, !6, i64 168}
!17 = !{!12, !10, i64 180}
!18 = !{!12, !7, i64 184}
!19 = !{!12, !7, i64 185}


; 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 void @_ZN12DtmfDetectorC2Ei(ptr noundef nonnull align 8 dereferenceable(186) %0, i32 noundef %1) unnamed_addr #0 align 2 {
  tail call void @_ZN21DtmfDetectorInterfaceC2Ev(ptr noundef nonnull align 8 dereferenceable(82) %0)
  %3 = getelementptr inbounds i8, ptr %0, i64 176
  store i32 %1, ptr %3, align 8, !tbaa !5
  %4 = add nsw i32 %1, 102
  %5 = zext nneg i32 %4 to i64
  %6 = icmp slt i32 %1, -102
  %7 = shl nuw nsw i64 %5, 1
  %8 = select i1 %6, i64 -1, i64 %7
  %9 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %8) #3
  %10 = getelementptr inbounds i8, ptr %0, i64 88
  store ptr %9, ptr %10, align 8, !tbaa !13
  %11 = tail call noalias noundef nonnull dereferenceable(204) ptr @_Znam(i64 noundef 204) #3
  %12 = getelementptr inbounds i8, ptr %0, i64 168
  store ptr %11, ptr %12, align 8, !tbaa !14
  %13 = getelementptr inbounds i8, ptr %0, i64 180
  store i32 0, ptr %13, align 4, !tbaa !15
  %14 = getelementptr inbounds i8, ptr %0, i64 184
  store i8 32, ptr %14, align 8, !tbaa !16
  %15 = getelementptr inbounds i8, ptr %0, i64 185
  store i8 0, ptr %15, align 1, !tbaa !17
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN21DtmfDetectorInterfaceC2Ev(ptr noundef nonnull align 8 dereferenceable(82)) unnamed_addr #1 align 2

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #2

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 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 #2 = { nobuiltin 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 #3 = { builtin 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, !12, i64 176}
!6 = !{!"_ZTS12DtmfDetector", !7, i64 0, !10, i64 88, !8, i64 96, !10, i64 168, !12, i64 176, !12, i64 180, !8, i64 184, !8, i64 185}
!7 = !{!"_ZTS21DtmfDetectorInterface", !8, i64 0, !10, i64 72, !11, i64 80}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!"short", !8, i64 0}
!12 = !{!"int", !8, i64 0}
!13 = !{!6, !10, i64 88}
!14 = !{!6, !10, i64 168}
!15 = !{!6, !12, i64 180}
!16 = !{!6, !8, i64 184}
!17 = !{!6, !8, i64 185}


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