[Bug c++/67876] [6 Regression] ICE when compiling Firefox 38

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67876

--- Comment #6 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Thu Nov 26 01:52:04 2015
New Revision: 230924

URL: https://gcc.gnu.org/viewcvs?rev=230924&root=gcc&view=rev
Log:
PR c++/67876 - [6 Regression] ICE when compiling Firefox 38

gcc/cp
        * pt.c (convert_template_argument): Make sure number of tree
        operands is greater than zero before attempting to extract one.

gcc/testsuite/
        * g++.dg/pr67876.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/pr67876.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/pt.c
    trunk/gcc/testsuite/ChangeLog