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[Bug tree-optimization/34648] [4.3 Regression] ICE in find_or_generate_expression
- From: "dberlin at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 3 Jan 2008 18:16:45 -0000
- Subject: [Bug tree-optimization/34648] [4.3 Regression] ICE in find_or_generate_expression
- References: <bug-34648-87@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from dberlin at gcc dot gnu dot org 2008-01-03 18:16 -------
It is never okay to base an existing expression on an SSA_NAME alone, which is
why we avoid it.
If the SSA_NAME was available, it would have been in the AVAIL set and been
found by the "find" part of find_or_generate_expression.
:)
(In reply to comment #2)
> We are creating *VH.97 by pieces but fail to create the 'piece' for VH.97
> because
> we don't consider a SSA_NAME ok for it.
>
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34648