--- Comment #2 from pinskia at gcc dot gnu dot org 2007-05-07 02:36 ---
> 1) Hoists a register containing 0 out of the loop
The correct thing to do.
>2) Uses that *only* as a copy into another register (mov reg, #0 costs exactly
the same as mov reg, reg)
Interesting, but this is also tru
--- Comment #1 from rearnsha at gcc dot gnu dot org 2007-05-07 01:06
---
Created an attachment (id=13520)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13520&action=view)
source code showing regression
compiled code for this file regresses by approximately 3%
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