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[Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
- From: "spop at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Jun 2007 13:38:25 -0000
- Subject: [Bug tree-optimization/32367] [4.3 Regression] internal compiler error: in build_polynomial_chrec, at tree-chrec.h:113
- References: <bug-32367-1649@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #9 from spop at gcc dot gnu dot org 2007-06-17 13:38 -------
Subject: Re: [4.3 Regression] internal compiler error: in
build_polynomial_chrec, at tree-chrec.h:113
{{&BinomialCoefficients[0], +, 4}_1, +, {0, +, 4}_1}_1
does not look good: the left part should be invariant in loop_1.
It's most certainly the code in scev analysis that is in fault here.
I'll have a look. Thanks for pointing me to the bug.
Sebastian
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32367