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[Bug tree-optimization/31976] [4.3 Regression] ICE in ssa_operand_alloc, at tree-ssa-operands.c:487 with -O3
- From: "pranav dot bhandarkar at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Oct 2007 10:49:28 -0000
- Subject: [Bug tree-optimization/31976] [4.3 Regression] ICE in ssa_operand_alloc, at tree-ssa-operands.c:487 with -O3
- References: <bug-31976-12387@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #7 from pranav dot bhandarkar at gmail dot com 2007-10-17 10:49 -------
Created an attachment (id=14362)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14362&action=view)
Reduced Testcase. Small Code, huge datastructure.
In the attached testcase due to an ivopts modification, while
rewriting the uses (rewrite_uses) the compiler crashes in tree-ssa-operands.c
because the memory required for the virtual operands of the modified stmt is
much greater than the thresholds controlled by OP_SIZE_{1,2,3} in
tree-ssa-operands.c.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31976