* [ARM] Cortex-M3 multiply costs
@ 2011-03-01 20:23 Alexandre Pereira Nunes
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From: Alexandre Pereira Nunes @ 2011-03-01 20:23 UTC (permalink / raw)
To: gcc
AFAIK, Cortex-M3 has single-cycle multiply, right?
I'm seeing gcc 4.5.2 prefering to do a lot (up to 5) of adds w/ shifts
in places where a single mult would suffice.
If I'm interpreting it right, where are the costs computed?
Thanks!
Alexandre
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