[Bug c++/98326] [10/11 Regression] ICE: in create_tmp_var, at gimple-expr.c:482, converting stateless generic-lambda to function pointer since r10-599-gc652ff8312433483
cvs-commit at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Feb 9 01:52:39 GMT 2021
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98326
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>:
https://gcc.gnu.org/g:bdbca69e0720fa9062fe71782235141f629ae006
commit r11-7142-gbdbca69e0720fa9062fe71782235141f629ae006
Author: Jason Merrill <jason@redhat.com>
Date: Mon Feb 8 17:04:03 2021 -0500
c++: generic lambda, fn* conv, empty class [PR98326]
Here, in the thunk returned from the captureless lambda conversion to
pointer-to-function, we try to pass through invisible reference parameters
by reference, without doing a copy. The empty class copy optimization was
messing that up.
gcc/cp/ChangeLog:
PR c++/98326
PR c++/20408
* cp-gimplify.c (simple_empty_class_p): Don't touch an invisiref
parm.
gcc/testsuite/ChangeLog:
PR c++/98326
* g++.dg/cpp1y/lambda-generic-empty1.C: New test.
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