[Bug bootstrap/79952] [7 Regression] ICE in test_loading_cfg in read-rtl-function.c:2016 targeting hppa2.0w-hp-hpux11.11

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79952

--- Comment #6 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Author: dmalcolm
Date: Fri Mar 10 18:39:52 2017
New Revision: 246044

URL: https://gcc.gnu.org/viewcvs?rev=246044&root=gcc&view=rev
Log:
Fix out-of-bounds write in RTL function reader (PR bootstrap/79952)

gcc/ChangeLog:
        PR bootstrap/79952
        * read-rtl-function.c (function_reader::read_rtx_operand): Update
        x with result of extra_parsing_for_operand_code_0.
        (function_reader::extra_parsing_for_operand_code_0): Convert
        return type from void to rtx, returning x.  When reading
        SYMBOL_REF with SYMBOL_FLAG_HAS_BLOCK_INFO, reallocate x to the
        larger size containing struct block_symbol.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/read-rtl-function.c