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[Bug middle-end/30907] [dataflow] Bad interaction with addressing mode selection and regalloc
- From: "bonzini at gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 21 Feb 2007 16:01:53 -0000
- Subject: [Bug middle-end/30907] [dataflow] Bad interaction with addressing mode selection and regalloc
- References: <bug-30907-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from bonzini at gnu dot org 2007-02-21 16:01 -------
fwprop has some tricks to avoid propagating within loops before unrolling. The
interesting point is why they trigger differently in mainline vs. dataflow.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30907