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[Bug tree-optimization/18746] [4.0 Regression] segfault with cc1 compiled with checking disabled
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 1 Dec 2004 02:13:36 -0000
- Subject: [Bug tree-optimization/18746] [4.0 Regression] segfault with cc1 compiled with checking disabled
- References: <20041201005139.18746.kazu@cs.umass.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-12-01 02:13 -------
This does not make sense. This looks like a latent bug.
With checking enabled we have the following for the statement:
# bufD.1116_5 = V_MAY_DEF <bufD.1116_4>;
__builtin_memcpy (&bufD.1116, pD.1117_1, 6);
but with checking disabled we get:
# bufD.1116_4 = V_MAY_DEF <bufD.1116_3>;
# TMT.0D.1125 = V_MAY_DEF <TMT.0D.1125>;
__builtin_memcpy (&bufD.1116, pD.1117_1, 6);
Note the extra TMT.0D.1125.
--
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18746