在 2019/3/26 下午7:40, JunMa 写道:
Hi

According to gnu document of function attributes, neither weakref nor alias
could be attached to a function defined in current translation unit.
Although GCC checks the attributes under some circumstances, it still fails
on some cases and even causes ICE.

This patch checks whether alias/weakref attribute attaches on a function
declaration which has body, and removes the attribute later.
This also avoid the ICE.

Bootstrapped/regtested on x86_64-linux, ok for GCC10?

Regards
JunMa


gcc/ChangeLog

2019-03-26  Jun Ma <ju...@linux.alibaba.com>

    PR89341
    * cgraphunit.c (handle_alias_pairs): Check whether alias attribute attaches
    on a function declaration which has body.

gcc/testsuite/ChangeLog

2019-03-26  Jun Ma <ju...@linux.alibaba.com>

    PR89341
    * gcc.dg/attr-alias-6.c: New test.
    * gcc.dg/attr-weakref-5.c: Likewise.
Hi Jakub

  Since you are owner of this part, so I add you to cc list.
  Ping?

Regards
JunMa

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