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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/98597] [11 Regression] ICE in print_mem_ref
 since r11-6508-gabb1b6058c09a7c0
Date: Tue, 12 Jan 2021 08:43:23 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98597

Martin Li=C5=A1ka <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |msebor at gcc dot g=
nu.org

--- Comment #2 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
> ```c++
> struct QQmlRefCount {
>   void release() const;
>   virtual ~QQmlRefCount();
> };
> QQmlRefCount::~QQmlRefCount() {}
> void QQmlRefCount::release() const { delete this; }
> struct QQmlJavaScriptExpression {
>   virtual int sourceLocation();
> };
> struct QQmlBoundSignalExpression : QQmlJavaScriptExpression, QQmlRefCount=
 {};
> struct QQmlProfilerDefinitions {
>   enum RangeType { HandlingSignal };
> };
> struct QQmlProfiler : QQmlProfilerDefinitions {
>   struct RefLocation {
>     RefLocation() {
>       switch (locationType)
>       case HandlingSignal:
>         boundSignal->release();
>     }
>     RangeType locationType;
>     QQmlBoundSignalExpression *boundSignal;
>   };
>   void startCompiling() { RefLocation(); }
> };
> struct QQmlCompilingProfiler {
>   QQmlProfiler QQmlCompilingProfiler_profiler;
>   QQmlCompilingProfiler(int *) {
>     QQmlCompilingProfiler_profiler.startCompiling();
>   }
> };
> int notifyComplete_blob;
> void QQmlDataBlobnotifyComplete() {
>   QQmlCompilingProfiler prof(&notifyComplete_blob);
> }
> ```
>=20

This also started with r11-6508-gabb1b6058c09a7c0.

@Martin: Can you please take a look?=