[Bug middle-end/78419] ICE with target_clone on invalid target

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78419

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Dec  7 22:52:39 2016
New Revision: 243404

URL: https://gcc.gnu.org/viewcvs?rev=243404&root=gcc&view=rev
Log:
        Backported from mainline
        2016-11-18  Jakub Jelinek  <jakub@redhat.com>

        PR middle-end/78419
        * multiple_target.c (get_attr_len): Start with argnum and increment
        argnum on every arg.  Use strchr in a loop instead of counting commas
        manually.
        (get_attr_str): Increment argnum for every comma in the string.
        (separate_attrs): Use for instead of while loop, simplify.
        (expand_target_clones): Rename defenition argument to definition.
        Free attrs and attr_str even when diagnosing errors.  Temporarily
        change input_location around targetm.target_option.valid_attribute_p
        calls.  Don't emit warning or errors if that function fails.

        * gcc.target/i386/pr78419.c: New test.

Added:
    branches/gcc-6-branch/gcc/testsuite/gcc.target/i386/pr78419.c
Modified:
    branches/gcc-6-branch/gcc/ChangeLog
    branches/gcc-6-branch/gcc/multiple_target.c
    branches/gcc-6-branch/gcc/testsuite/ChangeLog