From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:53130) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RNlMY-0001hh-LV for qemu-devel@nongnu.org; Tue, 08 Nov 2011 08:05:20 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RNlMX-0004iA-9V for qemu-devel@nongnu.org; Tue, 08 Nov 2011 08:05:14 -0500 Received: from mail.windriver.com ([147.11.1.11]:55492) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RNlMX-0004hg-12 for qemu-devel@nongnu.org; Tue, 08 Nov 2011 08:05:13 -0500 Received: from ALA-HCA.corp.ad.wrs.com (ala-hca [147.11.189.40]) by mail.windriver.com (8.14.3/8.14.3) with ESMTP id pA8D5AQO002893 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL) for ; Tue, 8 Nov 2011 05:05:10 -0800 (PST) From: Jason Wessel Date: Tue, 8 Nov 2011 07:00:52 -0600 Message-ID: <1320757252-29290-1-git-send-email-jason.wessel@windriver.com> MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH] target-i386: Fix regression with maxsd SSE2 instruction List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org The maxsd instruction needs to take into account the sign of the numbers 64 bit numbers. This is a regression that was introduced in 347ac8e356 (target-i386: switch to softfloat). The case that fails is: maxsd %xmm1,%xmm0 When xmm1 = 24 and xmm0 = -100 This was found running the glib2 binding tests where it prints the message: /binding/transform: GLib-GObject-WARNING **: value "24.000000" of type `gdouble' is invalid or out of range for property `value' of type `gdouble' aborting... Using a signed comparison fixes the problem. Signed-off-by: Jason Wessel --- target-i386/ops_sse.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/target-i386/ops_sse.h b/target-i386/ops_sse.h index aa41d25..bcc0ed9 100644 --- a/target-i386/ops_sse.h +++ b/target-i386/ops_sse.h @@ -584,8 +584,8 @@ void helper_ ## name ## sd (Reg *d, Reg *s)\ #define FPU_SUB(size, a, b) float ## size ## _sub(a, b, &env->sse_status) #define FPU_MUL(size, a, b) float ## size ## _mul(a, b, &env->sse_status) #define FPU_DIV(size, a, b) float ## size ## _div(a, b, &env->sse_status) -#define FPU_MIN(size, a, b) (a) < (b) ? (a) : (b) -#define FPU_MAX(size, a, b) (a) > (b) ? (a) : (b) +#define FPU_MIN(size, a, b) (int ## size ## _t)(a) < (int ## size ## _t)(b) ? (a) : (b) +#define FPU_MAX(size, a, b) (int ## size ## _t)(a) > (int ## size ## _t)(b) ? (a) : (b) #define FPU_SQRT(size, a, b) float ## size ## _sqrt(b, &env->sse_status) SSE_HELPER_S(add, FPU_ADD) -- 1.7.1