PATCH: Very simple constant propagation (revisited)
Richard Henderson
rth@redhat.com
Wed Mar 3 06:09:00 GMT 2004
On Tue, Mar 02, 2004 at 04:01:56PM -0800, Caroline Tice wrote:
> This patch is to address an efficiency problem in gcc. If you compile
> the following small loop with -O3 -ffast-math, the optimizer converts
> the "a/b" into "a * 1/b", in the hopes of being able to do some further
> optimizations. In this case it can't so ideally the combiner should
> convert "a * 1/b" back into "a/b".
At this point, I'd really prefer to solve this problem at the
tree-ssa level.
r~
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