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From: "maeriberii+gcc at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/99120] New: ICE in -Wshadow in templated member function
Date: Tue, 16 Feb 2021 17:28:27 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99120

            Bug ID: 99120
           Summary: ICE in -Wshadow in templated member function
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: maeriberii+gcc at gmail dot com
  Target Milestone: ---

Created attachment 50202
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D50202&action=3Dedit
Minimal test case

Minimal test case attached.
Does not trigger ICE when member function is not templated.

Versions of GCC tested: 8.3, 11.1, current master (72d78655a9)

Systems tested on: AArch64 Linux, x86-64 macOS

Complete command line that triggers the bug: g++ -Wshadow a.cpp

Compiler output:

 void ARM64XEmitter::MOVI2RImpl()
/Users/mary/Workspace/dolphin/test/a.cpp:10:7: internal compiler error:
Segmentation fault: 11
   10 |       MOVZ,
      |       ^~~~
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.

Appears to be caused by a nullptr dereference at name-lookup.c:3319.=