O2 optimization produces wrong code (PR#5315)
Duncan Murdoch <dmurdoch@pair.com> writes:
On Tue, 25 Nov 2003 15:47:01 +0000 (GMT), Prof Brian Ripley <ripley@stats.ox.ac.uk> wrote :
This is a long-known problem: one example is the MASS example in the script ch15.R, and that has gone wrong on platforms other than Windows. It has been reported to the maintainer in the past.
Should we back off to something less aggressive than -O2?
Traditionally, we've prioritized performance and used cases like this to file bugs for the compiler writers. But is this really a compiler problem or a problem with badly written code in akima??
O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk) FAX: (+45) 35327907