Re: 2.4.0-test10-pre6: Use of abs()

Richard Henderson
2000-11-02T19:54:28Z

On Thu, Nov 02, 2000 at 01:14:49PM +0100, Martin Dalecki wrote:
> However what's the difference in respect of optimization between
> unrolling the abs function by hand and relying on the built in?

Should be nothing. The expanded source expression should get
folded immediately to an ABS_EXPR node, at which point you are
at exactly the same point as the builtin would have gotten you.

r~