[Bug middle-end/37535] [4.4 Regression] gcc/libgcc2.c:404: internal compiler error: Floating point exception

[hjl at gcc dot gnu dot org]

------- Comment #15 from hjl at gcc dot gnu dot org  2008-09-30 00:38 -------
Subject: Bug 37535

Author: hjl
Date: Tue Sep 30 00:36:48 2008
New Revision: 140775

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=140775
Log:
2008-09-29  Vladimir Makarov  <vmakarov@redhat.com>

        PR middle-end/37535
        * ira-lives.c (mark_reg_live, mark_reg_dead): New functions.
        (mark_ref_live, mark_ref_dead): Use them.
        (def_conflicts_with_inputs_p): Remove.
        (mark_early_clobbers): New function.
        (process_bb_node_lives): Call preprocess_constraints and
        mark_early_clobbers.  Process inputs again if necessary.

        * doc/rtl.texi (clobber): Change how RA deals with clobbers.

Modified:
    branches/ira-merge/gcc/ChangeLog.ira
    branches/ira-merge/gcc/doc/rtl.texi
    branches/ira-merge/gcc/ira-lives.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37535