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Re: More fp bug in egcs
- To: hjl at lucon dot org (H.J. Lu)
- Subject: Re: More fp bug in egcs
- From: Jim Wilson <wilson at cygnus dot com>
- Date: Wed, 06 May 1998 11:01:07 -0700
- cc: law at cygnus dot com, scox at cygnus dot com, crux at pool dot informatik dot rwth-aachen dot de, egcs at cygnus dot com
Here is the stack RTL dump again. As you can see
(clobber (reg:SF 14 %st(6)))
should be
(clobber (reg:SF 8 %st(0)))
Should I worry about it? I think the bug is in move_for_stack_reg () in
reg-stack.c:
There is no need to worry about it for the egcs-1.0.3 release or the egcs-1.1.x
release. It would be nice to get this fixed in the development sources in
the long term, but for now it is perfectly harmless.
There is a general problem that reg-stack does not perform register
substitutions in clobbers. The fix will probably be involved, and would
not be safe for any pending release.
Jim