Re: [PATCH 1/3] Fix Unlikely(x) == y
From: Valdis . Kletnieks
Date: Mon Feb 18 2008 - 13:14:16 EST
On Mon, 18 Feb 2008 14:27:10 GMT, David Howells said:
> __builtin_expect() is useful on FRV where you _have_ to give each branch and
> conditional branch instruction a measure of probability whether the branch
> will be taken.
What does gcc do the 99.998% of the time we don't have likely/unlikely coded?
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