PATCH: Optimize IA64 brl to br

Zack Weinberg zack@codesourcery.com
Thu Jan 29 00:13:00 GMT 2004


"H. J. Lu" <hjl@lucon.org> writes:

> The IA64 compiler may generate brl. But it may be replaced by br
> during the relax finalize pass. This patch implements it.

Is this replacement actually an improvement?  It doesn't shrink the
code, or execute anything in the now-freed-up slot, so the only way
it could be is if br is faster than brl, and this I find unlikely.

zw



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