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

[vmakarov at gcc dot gnu dot org]

------- Comment #19 from vmakarov at gcc dot gnu dot org  2008-10-16 00:53 -------
Subject: Bug 37535

Author: vmakarov
Date: Thu Oct 16 00:51:34 2008
New Revision: 141160

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=141160
Log:
2008-10-15  Vladimir Makarov  <vmakarov@redhat.com>

        PR middle-end/37535
        * ira-lives.c (mark_early_clobbers): Remove.
        (make_pseudo_conflict, check_and_make_def_use_conflicts,
        check_and_make_def_conflicts,
        make_early_clobber_and_input_conflicts,
        mark_hard_reg_early_clobbers): New functions.
        (process_bb_node_lives): Call
        make_early_clobber_and_input_conflicts and
        mark_hard_reg_early_clobbers.  Make hard register inputs live
        again.

        * doc/rtl.texi (clobber): Change descriotion of RA behaviour for
        early clobbers of pseudo-registers.


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


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