; LLVM IR from HRI-EU/Rcs :: src/RcsCore/Rcs_filters.ll (ZN3Rcs14MedianFilterNDC2EmPKdm)

; 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.Rcs::MedianFilterND" = type { ptr, i64, ptr }

@stderr = external global ptr, align 8
@.str = external hidden unnamed_addr constant [43 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [72 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1
@_ZTVN3Rcs14MedianFilterNDE = external dso_local unnamed_addr constant { [10 x ptr] }, align 8
@__func__._ZN3Rcs14MedianFilterNDC2Emm = external hidden unnamed_addr constant [15 x i8], align 1

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind
declare i32 @fprintf(ptr noundef, ptr noundef, ...) #2

declare void @print_trace() #3

; Function Attrs: noreturn nounwind
declare void @abort() #4

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #5

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #6

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #6

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3Rcs14MedianFilterNDC2EmPKdm(ptr noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %1, ptr noundef %2, i64 noundef %3) unnamed_addr #7 align 2 personality ptr @__gxx_personality_v0 {
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i64 %1, ptr %6, align 8, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  store i64 %3, ptr %8, align 8, !tbaa !9
  %12 = load ptr, ptr %5, align 8
  store ptr getelementptr inbounds inrange(-16, 64) ({ [10 x ptr] }, ptr @_ZTVN3Rcs14MedianFilterNDE, i32 0, i32 0, i32 2), ptr %12, align 8, !tbaa !11
  %13 = getelementptr inbounds %"class.Rcs::MedianFilterND", ptr %12, i32 0, i32 1
  %14 = load i64, ptr %8, align 8, !tbaa !9
  store i64 %14, ptr %13, align 8, !tbaa !13
  br label %15

15:                                               ; preds = %4
  %16 = getelementptr inbounds %"class.Rcs::MedianFilterND", ptr %12, i32 0, i32 1
  %17 = load i64, ptr %16, align 8, !tbaa !13
  %18 = icmp ugt i64 %17, 0
  br i1 %18, label %22, label %19

19:                                               ; preds = %15
  %20 = load ptr, ptr @stderr, align 8, !tbaa !5
  %21 = call i32 (ptr, ptr, ...) @fprintf(ptr noundef %20, ptr noundef @.str, ptr noundef @.str.1, ptr noundef @__func__._ZN3Rcs14MedianFilterNDC2Emm, i32 noundef 718, ptr noundef @.str.2) #8
  call void @print_trace()
  call void @abort() #9
  unreachable

22:                                               ; preds = %15
  br label %23

23:                                               ; preds = %22
  %24 = getelementptr inbounds %"class.Rcs::MedianFilterND", ptr %12, i32 0, i32 1
  %25 = load i64, ptr %24, align 8, !tbaa !13
  %26 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %25, i64 8)
  %27 = extractvalue { i64, i1 } %26, 1
  %28 = extractvalue { i64, i1 } %26, 0
  %29 = select i1 %27, i64 -1, i64 %28
  %30 = call noalias noundef nonnull ptr @_Znam(i64 noundef %29) #10
  %31 = getelementptr inbounds %"class.Rcs::MedianFilterND", ptr %12, i32 0, i32 2
  store ptr %30, ptr %31, align 8, !tbaa !15
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #8
  store i64 0, ptr %9, align 8, !tbaa !9
  br label %32

32:                                               ; preds = %51, %23
  %33 = load i64, ptr %9, align 8, !tbaa !9
  %34 = getelementptr inbounds %"class.Rcs::MedianFilterND", ptr %12, i32 0, i32 1
  %35 = load i64, ptr %34, align 8, !tbaa !13
  %36 = icmp ult i64 %33, %35
  br i1 %36, label %38, label %37

37:                                               ; preds = %32
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #8
  br label %58

38:                                               ; preds = %32
  %39 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 40) #10
  %40 = load i64, ptr %6, align 8, !tbaa !9
  %41 = trunc i64 %40 to i32
  %42 = load ptr, ptr %7, align 8, !tbaa !5
  %43 = load i64, ptr %9, align 8, !tbaa !9
  %44 = getelementptr inbounds double, ptr %42, i64 %43
  %45 = load double, ptr %44, align 8, !tbaa !16
  invoke void @_ZN3Rcs14MedianFilter1DC1Ejd(ptr noundef nonnull align 8 dereferenceable(40) %39, i32 noundef %41, double noundef %45)
          to label %46 unwind label %54

46:                                               ; preds = %38
  %47 = getelementptr inbounds %"class.Rcs::MedianFilterND", ptr %12, i32 0, i32 2
  %48 = load ptr, ptr %47, align 8, !tbaa !15
  %49 = load i64, ptr %9, align 8, !tbaa !9
  %50 = getelementptr inbounds ptr, ptr %48, i64 %49
  store ptr %39, ptr %50, align 8, !tbaa !5
  br label %51

51:                                               ; preds = %46
  %52 = load i64, ptr %9, align 8, !tbaa !9
  %53 = add i64 %52, 1
  store i64 %53, ptr %9, align 8, !tbaa !9
  br label %32, !llvm.loop !18

54:                                               ; preds = %38
  %55 = landingpad { ptr, i32 }
          cleanup
  %56 = extractvalue { ptr, i32 } %55, 0
  store ptr %56, ptr %10, align 8
  %57 = extractvalue { ptr, i32 } %55, 1
  store i32 %57, ptr %11, align 4
  call void @_ZdlPvm(ptr noundef %39, i64 noundef 40) #11
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #8
  br label %59

58:                                               ; preds = %37
  ret void

59:                                               ; preds = %54
  %60 = load ptr, ptr %10, align 8
  %61 = load i32, ptr %11, align 4
  %62 = insertvalue { ptr, i32 } poison, ptr %60, 0
  %63 = insertvalue { ptr, i32 } %62, i32 %61, 1
  resume { ptr, i32 } %63
}

declare void @_ZN3Rcs14MedianFilter1DC1Ejd(ptr, i32, double)

attributes #0 = { nobuiltin 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 = { "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 = { 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 #5 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #6 = { 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 #7 = { 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 #8 = { nounwind }
attributes #9 = { noreturn nounwind }
attributes #10 = { builtin allocsize(0) }
attributes #11 = { builtin 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"vtable pointer", !8, i64 0}
!13 = !{!14, !10, i64 8}
!14 = !{!"_ZTSN3Rcs14MedianFilterNDE", !10, i64 8, !6, i64 16}
!15 = !{!14, !6, i64 16}
!16 = !{!17, !17, i64 0}
!17 = !{!"double", !7, i64 0}
!18 = distinct !{!18, !19}
!19 = !{!"llvm.loop.mustprogress"}


; 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"

@stderr = external local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [43 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [72 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [6 x i8], align 1
@_ZTVN3Rcs14MedianFilterNDE = external dso_local unnamed_addr constant { [10 x ptr] }, align 8
@__func__._ZN3Rcs14MedianFilterNDC2Emm = external hidden unnamed_addr constant [15 x i8], align 1

; Function Attrs: nobuiltin nounwind
declare void @_ZdlPvm(ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @fprintf(ptr nocapture noundef, ptr nocapture noundef readonly, ...) local_unnamed_addr #1

declare void @print_trace() local_unnamed_addr #2

; Function Attrs: noreturn nounwind
declare void @abort() local_unnamed_addr #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #4

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #4

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN3Rcs14MedianFilterNDC2EmPKdm(ptr nocapture noundef nonnull align 8 dereferenceable(24) %0, i64 noundef %1, ptr nocapture noundef readonly %2, i64 noundef %3) unnamed_addr #5 align 2 personality ptr @__gxx_personality_v0 {
  store ptr getelementptr inbounds inrange(-16, 64) (i8, ptr @_ZTVN3Rcs14MedianFilterNDE, i64 16), ptr %0, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 8
  store i64 %3, ptr %5, align 8, !tbaa !8
  %.not = icmp eq i64 %3, 0
  br i1 %.not, label %6, label %.lr.ph

6:                                                ; preds = %4
  %7 = load ptr, ptr @stderr, align 8, !tbaa !13
  %8 = tail call i32 (ptr, ptr, ...) @fprintf(ptr noundef %7, ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, ptr noundef nonnull @__func__._ZN3Rcs14MedianFilterNDC2Emm, i32 noundef 718, ptr noundef nonnull @.str.2) #6
  tail call void @print_trace()
  tail call void @abort() #7
  unreachable

.lr.ph:                                           ; preds = %4
  %9 = icmp ugt i64 %3, 2305843009213693951
  %10 = shl nuw i64 %3, 3
  %11 = select i1 %9, i64 -1, i64 %10
  %12 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %11) #8
  %13 = getelementptr inbounds i8, ptr %0, i64 16
  store ptr %12, ptr %13, align 8, !tbaa !14
  %14 = trunc i64 %1 to i32
  br label %15

._crit_edge:                                      ; preds = %19
  ret void

15:                                               ; preds = %.lr.ph, %19
  %.010 = phi i64 [ 0, %.lr.ph ], [ %22, %19 ]
  %16 = tail call noalias noundef nonnull dereferenceable(40) ptr @_Znwm(i64 noundef 40) #8
  %17 = getelementptr inbounds double, ptr %2, i64 %.010
  %18 = load double, ptr %17, align 8, !tbaa !15
  invoke void @_ZN3Rcs14MedianFilter1DC1Ejd(ptr noundef nonnull align 8 dereferenceable(40) %16, i32 noundef %14, double noundef %18)
          to label %19 unwind label %25

19:                                               ; preds = %15
  %20 = load ptr, ptr %13, align 8, !tbaa !14
  %21 = getelementptr inbounds ptr, ptr %20, i64 %.010
  store ptr %16, ptr %21, align 8, !tbaa !13
  %22 = add nuw i64 %.010, 1
  %23 = load i64, ptr %5, align 8, !tbaa !8
  %24 = icmp ult i64 %22, %23
  br i1 %24, label %15, label %._crit_edge, !llvm.loop !17

25:                                               ; preds = %15
  %26 = landingpad { ptr, i32 }
          cleanup
  tail call void @_ZdlPvm(ptr noundef nonnull %16, i64 noundef 40) #9
  resume { ptr, i32 } %26
}

declare void @_ZN3Rcs14MedianFilter1DC1Ejd(ptr, i32, double) local_unnamed_addr

attributes #0 = { nobuiltin 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 #1 = { nofree 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 = { "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 = { 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 #4 = { 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 #5 = { 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 #6 = { cold nounwind }
attributes #7 = { noreturn nounwind }
attributes #8 = { builtin allocsize(0) }
attributes #9 = { builtin 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !10, i64 8}
!9 = !{!"_ZTSN3Rcs14MedianFilterNDE", !10, i64 8, !12, i64 16}
!10 = !{!"long", !11, i64 0}
!11 = !{!"omnipotent char", !7, i64 0}
!12 = !{!"any pointer", !11, i64 0}
!13 = !{!12, !12, i64 0}
!14 = !{!9, !12, i64 16}
!15 = !{!16, !16, i64 0}
!16 = !{!"double", !11, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass