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[Bug tree-optimization/36967] [4.4 Regression] segfault in is_gimple_real_type with -fpredictive-commoning -ffast-math
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 Jul 2008 14:46:12 -0000
- Subject: [Bug tree-optimization/36967] [4.4 Regression] segfault in is_gimple_real_type with -fpredictive-commoning -ffast-math
- References: <bug-36967-4503@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from rguenth at gcc dot gnu dot org 2008-07-30 14:46 -------
well...
(gdb) call debug_tree (t)
<ssa_name 0x7ffff75338c0 nothrow var <var_decl 0x7ffff752faa0
prephitmp.162>def_stmt
version 447 in-free-list>
we release the SSA_NAME with remove_phi_node (&psi, true); before then
examining its uses ...
We forget to do so for the other stmts we remove.
An easy way out is to fix the tuplification.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2008-07-29 21:11:19 |2008-07-30 14:46:12
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36967