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Re: [Bug tree-optimization/26944] [4.1/4.2 Regression] -ftree-ch generates worse code
- From: Daniel Berlin <dberlin at dberlin dot org>
- To: gcc-bugzilla at gcc dot gnu dot org
- Cc: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 31 Mar 2006 17:41:02 -0500
- Subject: Re: [Bug tree-optimization/26944] [4.1/4.2 Regression] -ftree-ch generates worse code
- References: <bug-26944-1008@http.gcc.gnu.org/bugzilla/> <20060330164310.31125.qmail@sourceware.org>
> Compare pretmp.28_49 with pretmp.32_11, why are the arguments in a different
> order? Is there something unstable in the PRE algorithm?
>
No, we just call fold on the expressions we build, and whatever it gives
us, we use :)