[Bug middle-end/77964] [7 Regression] Linux kernel firmware loader miscompiled

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77964

--- Comment #18 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Wed Nov  2 08:29:48 2016
New Revision: 241776

URL: https://gcc.gnu.org/viewcvs?rev=241776&root=gcc&view=rev
Log:
2016-11-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/78035
        PR tree-optimization/77964
        * gimple-pretty-print.c (pp_points_to_solution): Print
        vars_contains_interposable.
        * tree-ssa-alias.c: Include varasm.h.
        (ptrs_compare_unequal): Check vars_contains_interposable and
        decl_binds_to_current_def_p.
        (dump_points_to_solution): Dump vars_contains_interposable.
        * tree-ssa-alias.h (struct pt_solution): Add vars_contains_interposable
        flag.
        * tree-ssa-structalias.c: Include varasm.h.
        (set_uids_in_ptset): Record whether vars contains a
        not decl_binds_to_current_def_p variable in vars_contains_interposable.
        (ipa_escaped_pt): Update initializer.

        * gcc.target/i386/pr78035.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr78035.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-pretty-print.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-alias.c
    trunk/gcc/tree-ssa-alias.h
    trunk/gcc/tree-ssa-structalias.c