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Re: What is acceptable for -ffast-math? (Was: associative law in combine)
- To: dewar at gnat dot com
- Subject: Re: What is acceptable for -ffast-math? (Was: associative law in combine)
- From: Gabriel Dos_Reis <gdosreis at sophia dot inria dot fr>
- Date: Wed, 1 Aug 2001 19:28:30 +0200 (MEST)
- Cc: Theodore dot Papadopoulo at sophia dot inria dot fr, gdr at codesourcery dot com, amylaar at redhat dot com, aoliva at redhat dot com, gcc at gcc dot gnu dot org, moshier at moshier dot ne dot mediaone dot net, torvalds at transmeta dot com, tprince at computer dot org
- References: <20010801170421.9F099F2B53@nile.gnat.com>
| <<We're talking here of transformations which we do know able to
| drastically change the results.
| Words like drastically are not particularly helpful in this discussion,
| plain "change" would be just fine.
Do you think changing 0.125 to 0.0 is not drastic? I used
"drastically" to stress on the magnitude or error -- no other
conotation was implied.
| THe issue is whether the "change" is worth the speed up.
I do fully understand that.