Messages in this thread |  | | Date | Thu, 2 Nov 2000 11:37:26 -0800 | From | Richard Henderson <> | Subject | Re: 2.4.0-test10-pre6: Use of abs() |
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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.
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