Which opcodes emitted by gcc for various arches

[Jim Wilson]

Kris Warkentin wrote:
> Is there any easy way to know which opcodes gcc is capable of emitting when
> optimizing for various platforms?

No.

> For example, if I wanted to know whether gcc will use the trv and ftrv
> instructions for sh4, how could I discover that?

You can grep the SH backend for the string "trv".  This requires knowing 
enough about gcc to understand what you find though.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com