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[Bug tree-optimization/41775] [4.5 Regression] IPA-SRA: ice in rewrite_stmt, at tree-into-ssa.c:1302
- From: "jamborm at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 26 Oct 2009 21:53:37 -0000
- Subject: [Bug tree-optimization/41775] [4.5 Regression] IPA-SRA: ice in rewrite_stmt, at tree-into-ssa.c:1302
- References: <bug-41775-12544@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from jamborm at gcc dot gnu dot org 2009-10-26 21:53 -------
Created an attachment (id=18903)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18903&action=view)
Proposed fix
Indeed, the users of build_ref_for_offset in ipa-prop.c and ipa-cp.c
do not unshare the base expressions they should. I have looked at all
other users and found that they either pass declarations or do their
own unsharing and so decided to move the unsharing to
build_ref_for_offset itself. The attached patch fixes the ICE when
compiling the testcase, I am currently bootstrapping it.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41775