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Re: [PATCH] Eliminate redundant sign extensions in pow()
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Anton Blanchard <anton at samba dot org>
- Cc: <tuliom at linux dot vnet dot ibm dot com>, <cseo at linux dot vnet dot ibm dot com>, <sjmunroe at us dot ibm dot com>, <libc-alpha at sourceware dot org>
- Date: Mon, 16 Nov 2015 10:57:03 +0000
- Subject: Re: [PATCH] Eliminate redundant sign extensions in pow()
- Authentication-results: sourceware.org; auth=none
- References: <20151116214413 dot 26babb5f at kryten>
On Mon, 16 Nov 2015, Anton Blanchard wrote:
> When looking at the code generated for pow() on ppc64 I noticed quite
> a few sign extensions. Making the array indices unsigned reduces the
> number of sign extensions from 24 to 7.
OK with a ChangeLog entry if you've done the usual testing with the
testsuite without any new ulps for pow appearing (you didn't say).
--
Joseph S. Myers
joseph@codesourcery.com