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Re: ppc64 floating point usage [was Re: PPC64 Compiler bug !!]
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Fri, 08 Aug 2003 10:01:39 -0400
- Subject: Re: ppc64 floating point usage [was Re: PPC64 Compiler bug !!]
>>>>> Alan Modra writes:
Alan> Going back over gcc-patches archives, it appears that this was to fix
Alan> a reload problem. (See [RFC PATCH] Fix middle-end/6963 from June and
Alan> July 2002.) The good news is that the underlying reload problem is
Alan> fixed, I think. I'm testing the following patch, which compiles the
Alan> testcase in http://gcc.gnu.org/ml/gcc-patches/2002-06/msg02214.html
Alan> without a problem, and things are looking good so far with regression
Alan> tests.
Alan> * config/rs6000/rs6000.md (fctiwz): Don't ignore fpr preference.
Alan> (floatdidf2, fix_truncdfdi2, floatdisf2_internal1): Likewise.
Alan> (floatditf2, fix_trunctfdi2): Likewise.
Removing the ignore flag on all of the patterns is incorrect.
This activity continues to fix symptoms instead of problems.
David