c/10339: [sparc] Invalid optimization: replacing strncmp by memcmp

[Richard Henderson]

The following reply was made to PR optimization/10339; it has been noted by GNATS.

From: Richard Henderson <rth@redhat.com>
To: bangerth@dealii.org, gcc-bugs@gcc.gnu.org, ubell@sleepycat.com,
   gcc-gnats@gcc.gnu.org
Cc:  
Subject: Re: c/10339: [sparc] Invalid optimization: replacing strncmp by memcmp
Date: Tue, 8 Apr 2003 22:47:08 -0700

 On Tue, Apr 08, 2003 at 10:43:36AM +0930, Alan Modra wrote:
 > A more reasonable objection to the
 > strncmp -> memcmp transformation is that a memcmp implementation
 > might load multiple words into registers (say a cache-line worth),
 > before comparing.
 
 Agreed.
 
 
 r~