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Re: [PATCH] Recognize recent x86 CPUs in string.h
- From: jb999 at gmx dot de
- To: "Winfried Magerl" <winfried dot magerl at t-online dot de>, libc-alpha at sourceware dot org
- Date: Thu, 23 Oct 2014 15:28:06 +0200
- Subject: Re: [PATCH] Recognize recent x86 CPUs in string.h
- Authentication-results: sourceware.org; auth=none
"Winfried Magerl" <winfried.magerl@t-online.de>:
> I miss the recent AMD-CPUs. Extracted from gcc/config/i386/i386-c.c (gcc-4.9.x):
>
> __bdver1__
> __bdver2__
> __bdver3__
> __bdver4__
> __btver1__
> __btver2__
>
> And according to i386-c.c __nehalem__ is already recognized
> as __corei7__:
Here is v2 of the patch:
* sysdeps/x86/bits/string.h: Add recent CPUs.
diff -Nur a/sysdeps/x86/bits/string.h b/sysdeps/x86/bits/string.h
--- a/sysdeps/x86/bits/string.h 2014-09-07 10:09:09.000000000 +0200
+++ b/sysdeps/x86/bits/string.h 2014-10-23 15:15:46.836298799 +0200
@@ -29,9 +29,14 @@
|| defined __pentiumpro__ || defined __pentium4__ \
|| defined __nocona__ || defined __atom__ \
|| defined __core2__ || defined __corei7__ \
+ || defined __sandybridge__ || defined __haswell__ \
+ || defined __bonnell__ || defined __silvermont__ \
|| defined __k6__ || defined __geode__ \
|| defined __k8__ || defined __athlon__ \
- || defined __amdfam10__)
+ || defined __amdfam10__ || defined __bdver1__ \
+ || defined __bdver2__ || defined __bdver3__ \
+ || defined __bdver4__ || defined __btver1__ \
+ || defined __btver2__)
/* We only provide optimizations if the user selects them and if
GNU CC is used. */