From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48582) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a6H6j-0007sQ-ON for qemu-devel@nongnu.org; Tue, 08 Dec 2015 07:11:02 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a6H6e-00033y-OJ for qemu-devel@nongnu.org; Tue, 08 Dec 2015 07:11:01 -0500 Received: from mga03.intel.com ([134.134.136.65]:2590) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a6H6e-00033o-J3 for qemu-devel@nongnu.org; Tue, 08 Dec 2015 07:10:56 -0500 From: Liang Li Date: Tue, 8 Dec 2015 20:08:55 +0800 Message-Id: <1449576535-3369-4-git-send-email-liang.z.li@intel.com> In-Reply-To: <1449576535-3369-1-git-send-email-liang.z.li@intel.com> References: <1449576535-3369-1-git-send-email-liang.z.li@intel.com> Subject: [Qemu-devel] [v3 3/3] configure: add options to config avx2 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Liang Li , quintela@redhat.com, mst@redhat.com, dgilbert@redhat.com, stefanha@redhat.com, amit.shah@redhat.com, pbonzini@redhat.com, rth@twiddle.net Add the '--enable-avx2' & '--disable-avx2' option so as to config the AVX2 instruction optimization. If '--disable-avx2' is not set, configure will detect if the compiler can support AVX2 option, if yes, AVX2 optimization is eabled, else disabled. Signed-off-by: Liang Li --- configure | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/configure b/configure index 394db3b..94e45fa 100755 --- a/configure +++ b/configure @@ -311,6 +311,7 @@ libusb="" usb_redir="" opengl="" ifunc="" +avx2="" zlib="yes" lzo="" snappy="" @@ -1063,6 +1064,10 @@ for opt do ;; --enable-usb-redir) usb_redir="yes" ;; + --disable-avx2) avx2="no" + ;; + --enable-avx2) avx2="yes" + ;; --disable-zlib-test) zlib="no" ;; --disable-lzo) lzo="no" @@ -1378,6 +1383,7 @@ disabled with --disable-FEATURE, default is enabled if available: smartcard smartcard support (libcacard) libusb libusb (for usb passthrough) usb-redir usb network redirection support + avx2 support of avx2 instruction lzo support of lzo compression library snappy support of snappy compression library bzip2 support of bzip2 compression library @@ -1841,6 +1847,23 @@ else ifunc="no" fi +######################################## +# avx2 check + +if test "$avx2" != "no" ; then + cat > $TMPC << EOF +int main(void) { return 0; } +EOF + if compile_prog "" "-mavx2" ; then + avx2="yes" + else + if test "$avx2" = "yes" ; then + feature_not_found "avx2" "Your compiler don't support avx2" + fi + avx2="no" + fi +fi + ######################################### # zlib check @@ -4853,6 +4876,7 @@ echo "TPM passthrough $tpm_passthrough" echo "QOM debugging $qom_cast_debug" echo "vhdx $vhdx" echo "ifunc support $ifunc" +echo "avx2 support $avx2" echo "lzo support $lzo" echo "snappy support $snappy" echo "bzip2 support $bzip2" @@ -5241,6 +5265,12 @@ if test "$ifunc" = "yes" ; then echo "CONFIG_IFUNC=y" >> $config_host_mak fi +if test "$avx2" = "yes" ; then + avx2_cflags=" -mavx2" + echo "AVX2_CFLAGS=$avx2_cflags" >> $config_host_mak + echo "CONFIG_AVX2=y" >> $config_host_mak +fi + if test "$lzo" = "yes" ; then echo "CONFIG_LZO=y" >> $config_host_mak fi -- 1.9.1