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[Patch] Fix PR 12086, add optimize of small size memcmp

From: Andrew Pinski <pinskia at physics dot uc dot edu>
To: gcc-patches at gcc dot gnu dot org
Cc: Andrew Pinski <pinskia at physics dot uc dot edu>
Date: Thu, 28 Aug 2003 12:56:12 -0400
Subject: [Patch] Fix PR 12086, add optimize of small size memcmp

This patch add optimization of small constant size of memcmp, it adds sizeof (long), sizeof(short), and sizeof(long long) (iff the sizeof(long long)<=sizeof(int)). I also fixed a comment for when the length is one.

Bootstrapped and tested on i686-unknown-openbsd3.1.

OK?

Thanks,
Andrew Pinski

ChangeLog: * builtins.c (expand_builtin_memcmp): Expand for sizeof(short), sizeof(long), sizeof(long long), and sizeof(int) for the length. Fix comment when length is one.

Patch:

Attachment: memcmp.diff.txt
Description: Text document

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