From patchwork Thu Jan 24 04:03:34 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 215210 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 4F3642C0040 for ; Thu, 24 Jan 2013 15:27:29 +1100 (EST) Received: from localhost ([::1]:33159 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TyEPP-0001k6-BW for incoming@patchwork.ozlabs.org; Wed, 23 Jan 2013 23:27:27 -0500 Received: from eggs.gnu.org ([208.118.235.92]:55861) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TyEP4-000115-46 for qemu-devel@nongnu.org; Wed, 23 Jan 2013 23:27:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TyEP0-0001KE-S9 for qemu-devel@nongnu.org; Wed, 23 Jan 2013 23:27:05 -0500 Received: from mail-da0-f46.google.com ([209.85.210.46]:39504) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TyE3o-0004fk-Gy for qemu-devel@nongnu.org; Wed, 23 Jan 2013 23:05:08 -0500 Received: by mail-da0-f46.google.com with SMTP id p5so4015306dak.5 for ; Wed, 23 Jan 2013 20:05:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:sender:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references; bh=jLlYx3Yk9KJ93pLpeVjIKLIdsfQDlLLXwqDkSVO7PE8=; b=PozCrbNsu/fHaCbCS+HKv86ieU0fbTQMXaxAS5zF62cBMIjtRpy5x3a/X2M4YekNLL wraeB6KxLBudD2SoQwxzsSWwRtoIRgng2BPYPEPNn3jqmRuIn4cFwnUjiQwI6mRR8l0v 0J0MP/9IpvAcomD0LyEktfDZDW/lNBIgQxLRRYuDv0vcDqjHtMhca6lokgt0MmVyMTD6 9neslcY21UUbeJfXvvQ59NMe/RNhXyu1jLwvn0E2W+iaVKviPr9nZLDcgr/Ai2ts2M1a 4L7EK8vyNa/K8G04aw4Adkb5GidEDv/pdWFditzTbJOicD3HKzDo2mHJLZtc2Ak0dv7k 4dQg== X-Received: by 10.68.189.35 with SMTP id gf3mr1437743pbc.69.1359000307382; Wed, 23 Jan 2013 20:05:07 -0800 (PST) Received: from anchor.twiddle.home (50-194-63-110-static.hfc.comcastbusiness.net. [50.194.63.110]) by mx.google.com with ESMTPS id ot3sm14027480pbb.38.2013.01.23.20.05.05 (version=TLSv1 cipher=RC4-SHA bits=128/128); Wed, 23 Jan 2013 20:05:06 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Date: Wed, 23 Jan 2013 20:03:34 -0800 Message-Id: <1359000221-19834-51-git-send-email-rth@twiddle.net> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1359000221-19834-1-git-send-email-rth@twiddle.net> References: <1359000221-19834-1-git-send-email-rth@twiddle.net> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 209.85.210.46 Cc: Blue Swirl , Paolo Bonzini Subject: [Qemu-devel] [PATCH 50/57] target-i386: Implement MULX X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Signed-off-by: Richard Henderson --- target-i386/helper.h | 1 + target-i386/int_helper.c | 7 +++++++ target-i386/translate.c | 36 ++++++++++++++++++++++++++++++++++++ 3 files changed, 44 insertions(+) diff --git a/target-i386/helper.h b/target-i386/helper.h index aa313bd..b1bae6c 100644 --- a/target-i386/helper.h +++ b/target-i386/helper.h @@ -18,6 +18,7 @@ DEF_HELPER_2(imulq_EAX_T0, void, env, tl) DEF_HELPER_3(imulq_T0_T1, tl, env, tl, tl) DEF_HELPER_2(divq_EAX, void, env, tl) DEF_HELPER_2(idivq_EAX, void, env, tl) +DEF_HELPER_FLAGS_2(umulh, TCG_CALL_NO_RWG_SE, tl, tl, tl) #endif DEF_HELPER_2(aam, void, env, int) diff --git a/target-i386/int_helper.c b/target-i386/int_helper.c index 84b812d..4ec8cb7 100644 --- a/target-i386/int_helper.c +++ b/target-i386/int_helper.c @@ -385,6 +385,13 @@ void helper_mulq_EAX_T0(CPUX86State *env, target_ulong t0) CC_SRC = r1; } +target_ulong helper_umulh(target_ulong t0, target_ulong t1) +{ + uint64_t h, l; + mulu64(&l, &h, t0, t1); + return h; +} + void helper_imulq_EAX_T0(CPUX86State *env, target_ulong t0) { uint64_t r0, r1; diff --git a/target-i386/translate.c b/target-i386/translate.c index 46e7b24..dc43ccf 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -4099,6 +4099,42 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b, set_cc_op(s, CC_OP_BMILGB + ot); break; + case 0x3f6: /* mulx By, Gy, rdx, Ey */ + if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI2) + || !(s->prefix & PREFIX_VEX) + || s->vex_l != 0) { + goto illegal_op; + } + ot = s->dflag == 2 ? OT_QUAD : OT_LONG; + gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0); +#ifdef TARGET_X86_64 + if (s->dflag == 2) { + tcg_gen_mov_tl(cpu_T[1], cpu_regs[R_EDX]); + tcg_gen_mul_tl(cpu_regs[s->vex_v], cpu_T[0], cpu_T[1]); + gen_helper_umulh(cpu_regs[reg], cpu_T[0], cpu_T[1]); + } else +#endif + { + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); +#ifdef TARGET_X86_64 + tcg_gen_ext32u_i64(t0, cpu_T[0]); + tcg_gen_ext32u_i64(t1, cpu_regs[R_EDX]); +#else + tcg_gen_extu_i32_i64(t0, cpu_T[0]); + tcg_gen_extu_i32_i64(t0, cpu_regs[R_EDX]); +#endif + tcg_gen_mul_i64(t0, t0, t1); + tcg_gen_trunc_i64_tl(cpu_T[0], t0); + tcg_gen_shri_i64(t0, t0, 32); + tcg_gen_trunc_i64_tl(cpu_T[1], t0); + tcg_temp_free_i64(t0); + tcg_temp_free_i64(t1); + gen_op_mov_reg_T0(OT_LONG, s->vex_v); + gen_op_mov_reg_T1(OT_LONG, reg); + } + break; + case 0x0f3: case 0x1f3: case 0x2f3: