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[2001:4830:134:3::11]) by mx.google.com with ESMTPS id q9si4391142qag.118.2014.03.17.15.22.50 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Mon, 17 Mar 2014 15:22:50 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) client-ip=2001:4830:134:3::11; Received: from localhost ([::1]:60663 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPfvl-0007Vi-QV for patch@linaro.org; Mon, 17 Mar 2014 18:22:49 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51360) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPfmP-0004hz-OE for qemu-devel@nongnu.org; Mon, 17 Mar 2014 18:13:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WPfmO-0007fv-Bf for qemu-devel@nongnu.org; Mon, 17 Mar 2014 18:13:09 -0400 Received: from mnementh.archaic.org.uk ([2001:8b0:1d0::1]:46921) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WPfmN-0007Pr-S3 for qemu-devel@nongnu.org; Mon, 17 Mar 2014 18:13:08 -0400 Received: from pm215 by mnementh.archaic.org.uk with local (Exim 4.80) (envelope-from ) id 1WPfld-00053Q-Rn; Mon, 17 Mar 2014 22:12:21 +0000 From: Peter Maydell To: Anthony Liguori Date: Mon, 17 Mar 2014 22:12:07 +0000 Message-Id: <1395094341-19339-17-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1395094341-19339-1-git-send-email-peter.maydell@linaro.org> References: <1395094341-19339-1-git-send-email-peter.maydell@linaro.org> X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:8b0:1d0::1 Cc: Blue Swirl , =?UTF-8?q?Andreas=20F=C3=A4rber?= , qemu-devel@nongnu.org, Aurelien Jarno Subject: [Qemu-devel] [PULL 16/30] target-arm: A64: Implement FCVTL 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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: peter.maydell@linaro.org X-Original-Authentication-Results: mx.google.com; spf=neutral (google.com: 209.85.220.182 is neither permitted nor denied by best guess record for domain of patch+caf_=patchwork-forward=linaro.org@linaro.org) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 Implement FCVTL, the only instruction in the 2-reg-misc group which widens from size to 2*size elements. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson Message-id: 1394822294-14837-12-git-send-email-peter.maydell@linaro.org --- target-arm/translate-a64.c | 47 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c index f6a4ce7..e6addf4 100644 --- a/target-arm/translate-a64.c +++ b/target-arm/translate-a64.c @@ -8489,6 +8489,51 @@ static void handle_2misc_narrow(DisasContext *s, int opcode, bool u, bool is_q, } } +static void handle_2misc_widening(DisasContext *s, int opcode, bool is_q, + int size, int rn, int rd) +{ + /* Handle 2-reg-misc ops which are widening (so each size element + * in the source becomes a 2*size element in the destination. + * The only instruction like this is FCVTL. + */ + int pass; + + if (size == 3) { + /* 32 -> 64 bit fp conversion */ + TCGv_i64 tcg_res[2]; + int srcelt = is_q ? 2 : 0; + + for (pass = 0; pass < 2; pass++) { + TCGv_i32 tcg_op = tcg_temp_new_i32(); + tcg_res[pass] = tcg_temp_new_i64(); + + read_vec_element_i32(s, tcg_op, rn, srcelt + pass, MO_32); + gen_helper_vfp_fcvtds(tcg_res[pass], tcg_op, cpu_env); + tcg_temp_free_i32(tcg_op); + } + for (pass = 0; pass < 2; pass++) { + write_vec_element(s, tcg_res[pass], rd, pass, MO_64); + tcg_temp_free_i64(tcg_res[pass]); + } + } else { + /* 16 -> 32 bit fp conversion */ + int srcelt = is_q ? 4 : 0; + TCGv_i32 tcg_res[4]; + + for (pass = 0; pass < 4; pass++) { + tcg_res[pass] = tcg_temp_new_i32(); + + read_vec_element_i32(s, tcg_res[pass], rn, srcelt + pass, MO_16); + gen_helper_vfp_fcvt_f16_to_f32(tcg_res[pass], tcg_res[pass], + cpu_env); + } + for (pass = 0; pass < 4; pass++) { + write_vec_element_i32(s, tcg_res[pass], rd, pass, MO_32); + tcg_temp_free_i32(tcg_res[pass]); + } + } +} + static void handle_rev(DisasContext *s, int opcode, bool u, bool is_q, int size, int rn, int rd) { @@ -8830,6 +8875,8 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) handle_2misc_narrow(s, opcode, 0, is_q, size - 1, rn, rd); return; case 0x17: /* FCVTL, FCVTL2 */ + handle_2misc_widening(s, opcode, is_q, size, rn, rd); + return; case 0x18: /* FRINTN */ case 0x19: /* FRINTM */ case 0x38: /* FRINTP */