[Bug target/41246] should "sorry" when regparm=3 and nested functions are encountered

[rth at gcc dot gnu dot org]

------- Comment #18 from rth at gcc dot gnu dot org  2009-09-16 16:27 -------
Subject: Bug 41246

Author: rth
Date: Wed Sep 16 16:26:55 2009
New Revision: 151762

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=151762
Log:
PR target/41246
        * tree-cfg.c (verify_gimple_call): Validate that
        * gimple_call_chain
        is set only if DECL_NO_STATIC_CHAIN is unset.
        * tree-nested.c (iter_nestinfo_start, iter_nestinfo_next): New.
        (FOR_EACH_NEST_INFO): New.
        (walk_all_functions): Use it.
        (finalize_nesting_tree): Likewise.
        (unnest_nesting_tree): Likewise.
        (free_nesting_tree): Use iter_nestinfo_start, iter_nestinfo_next.
        (get_chain_decl, get_chain_field): Reset DECL_NO_STATIC_CHAIN.
        (convert_gimple_call): Early out if gimple_call_chain already set.
        (convert_all_function_calls): Iterate until no new functions
        require a static chain.
        (finalize_nesting_tree_1): Assert DECL_NO_STATIC_CHAIN is unset
        when building a trampoline.  Use dump_function_to_file instead
        of dump_function.
        (lower_nested_functions): Open dump_file.  Validate that decls
        that have DECL_NO_STATIC_CHAIN from the front end don't have that
        bit reset by this pass.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-cfg.c
    trunk/gcc/tree-nested.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41246