From 72771e53753647111d31c5c4bf43d8901e6baf7e Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Wed, 17 Oct 2018 15:16:38 -0700 Subject: x86: Use _rdtsc intrinsic for HP_TIMING_NOW Since _rdtsc intrinsic is supported in GCC 4.9, we can use it for HP_TIMING_NOW. This patch 1. Create x86 hp-timing.h to replace i686 and x86_64 hp-timing.h. 2. Move MINIMUM_ISA from init-arch.h to isa.h so that x86 hp-timing.h can check minimum x86 ISA to decide if _rdtsc can be used. NB: Checking if __i686__ isn't sufficient since __i686__ may not be defined when building for i686 class processors. * sysdeps/i386/init-arch.h: Removed. * sysdeps/i386/i586/init-arch.h: Likewise. * sysdeps/i386/i686/init-arch.h: Likewise. * sysdeps/i386/i686/hp-timing.h: Likewise. * sysdeps/x86_64/hp-timing.h: Likewise. * sysdeps/i386/isa.h: New file. * sysdeps/i386/i586/isa.h: Likewise. * sysdeps/i386/i686/isa.h: Likewise. * sysdeps/x86_64/isa.h: Likewise. * sysdeps/x86/hp-timing.h: New file. * sysdeps/x86/init-arch.h: Include . --- sysdeps/i386/init-arch.h | 19 ------------------- 1 file changed, 19 deletions(-) delete mode 100644 sysdeps/i386/init-arch.h (limited to 'sysdeps/i386/init-arch.h') diff --git a/sysdeps/i386/init-arch.h b/sysdeps/i386/init-arch.h deleted file mode 100644 index 043089c..0000000 --- a/sysdeps/i386/init-arch.h +++ /dev/null @@ -1,19 +0,0 @@ -/* Copyright (C) 2015-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#define MINIMUM_ISA 486 -#include -- cgit v1.1