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[Bug target/28376] [4.1 Regression] ICE when building opensp with -O3 on alpha
- 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: 14 Jul 2006 08:20:37 -0000
- Subject: [Bug target/28376] [4.1 Regression] ICE when building opensp with -O3 on alpha
- References: <bug-28376-10160@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from pinskia at gcc dot gnu dot org 2006-07-14 08:20 -------
(In reply to comment #3)
> This simplified test case ICEs already at -O:
>
> 00.expand already contains the unfolded leu. I suppose this is not valid RTL?
I think this is a case where we unroll the loop but don't do store-CCP after
the unroller so we can get expand looks into sizes for the value but then we
don't call simplify-rtx before emitting (which seems wrong).
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28376