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[Bug rtl-optimization/19097] [3.4/4.0 regression] Quadratic behavior with many sets for the same register in gcse CPROP
- From: "bonzini at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 28 Dec 2004 18:48:46 -0000
- Subject: [Bug rtl-optimization/19097] [3.4/4.0 regression] Quadratic behavior with many sets for the same register in gcse CPROP
- References: <20041221015654.19097.phython@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From bonzini at gcc dot gnu dot org 2004-12-28 18:48 -------
Interestingly, on arm-elf the hog is CSE, because each copy of b is given a
different pseudo.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19097