From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37412) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b9yRC-0002JX-Gk for qemu-devel@nongnu.org; Mon, 06 Jun 2016 13:35:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b9yRA-0001QK-LR for qemu-devel@nongnu.org; Mon, 06 Jun 2016 13:35:41 -0400 Received: from mx1.redhat.com ([209.132.183.28]:58093) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b9yRA-0001QD-9W for qemu-devel@nongnu.org; Mon, 06 Jun 2016 13:35:40 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E0A3619C33B for ; Mon, 6 Jun 2016 17:35:39 +0000 (UTC) From: Paolo Bonzini Date: Mon, 6 Jun 2016 19:35:19 +0200 Message-Id: <1465234520-11160-11-git-send-email-pbonzini@redhat.com> In-Reply-To: <1465234520-11160-1-git-send-email-pbonzini@redhat.com> References: <1465234520-11160-1-git-send-email-pbonzini@redhat.com> Subject: [Qemu-devel] [PULL 10/11] Make avx2 configure test work with -O2 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: "Dr. David Alan Gilbert" From: "Dr. David Alan Gilbert" When configured with --extra-cflags=-O2 gcc optimised out the test and the readelf failed the check leaving avx2 disabled. Signed-off-by: Dr. David Alan Gilbert Message-Id: <1464792879-30954-2-git-send-email-dgilbert@redhat.com> Reviewed-by: Liang Li Signed-off-by: Paolo Bonzini --- configure | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure b/configure index 6d01d96..08952af 100755 --- a/configure +++ b/configure @@ -1783,7 +1783,7 @@ fi cat > $TMPC << EOF static void bar(void) {} static void *bar_ifunc(void) {return (void*) bar;} -static void foo(void) __attribute__((ifunc("bar_ifunc"))); +void foo(void) __attribute__((ifunc("bar_ifunc"))); int main(void) { foo(); return 0; } EOF if compile_prog "-mavx2" "" ; then -- 2.5.5