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[174.21.75.75]) by smtp.gmail.com with ESMTPSA id g19sm10645919pfc.145.2021.12.18.11.43.00 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 Dec 2021 11:43:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=nf0so4qrr+/bxDxj+Sw0o2TYL+Hd96M6E8AXnkGVi40=; b=IKEKm8ZVV8a6JXaL1nB5ed/v6aXecSEyTisgvUoUbHHLw4Ab/xVo2bvaY547HeJSVp gBIiXJ/xzI0ANGRAa2Sz4mkHvesGGCBPnP+g+1yqrMjxWj4JuKdBNrCjhdLkhP5+F2Xn 4cvQYud6fWu03W2kEUmwyZDtmhqNfckzp+8AVt5ZxL3KpqM4EzP6Cw7AX1WmFYCR/YdT wZJJrK2xTel7xNm0ZwiqRNpVpQ4UbVp2lpYS4AOu54Lf7jDHDrkIkoHrlVPoUCMVgoyZ kc6QZfJUn+9n26C2awZYlgyN5/JFQYs6CHdhqEhLtqU8Casz5HgWUdlUuajqNCDczAI3 rOAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=nf0so4qrr+/bxDxj+Sw0o2TYL+Hd96M6E8AXnkGVi40=; b=690MANBOShF4LjRhYdhGCTEOjpCvxRBXT55F7c4I81zBPCEwy0/5cl7lzedjqFsHpY Rsr6/BZDK9g5LNiSROQjoFYw5bw618fYTOrESNlGfQTCSI297EnX0TNUvF7S06AUzTTR JZsTdJ4zazPjuiX6UPJIlEfPc5TKoNo7u4HUksOFnLJ7MoYJNxBHgfrA71AX1DjTvU5E uo69YiAAFJkWW4ugkun6haI2f0uV5PejUtA/UdSj/7NBSSu0HNNW4Jw0M2P3e3WjzHuX J04KRdRKFKexA8BzRfq1UZmp8Ew5yTnk1z4j+P5SmrchqBgssMCzLwR0PR2l2C9wSkOH tzrQ== X-Gm-Message-State: AOAM531gPn0in01CLsiUjH/ISMpkYeqVg0YijYG5Blxb2oBpxeg7Nz5Y d9cScy/UDlOvbrRqmAc7i7aXSkUIZrHvjA== X-Google-Smtp-Source: ABdhPJxrtwVtyHbDGbcSrfI6YWt0s8dKsP1Y0g4SpUUX/6DJZTgjzLvmLxUshGLKXTv/uajyMtiatw== X-Received: by 2002:a63:701b:: with SMTP id l27mr8112639pgc.241.1639856580516; Sat, 18 Dec 2021 11:43:00 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 14/20] tcg/i386: Expand vector word rotate as avx512vbmi2 shift-double Date: Sat, 18 Dec 2021 11:42:44 -0800 Message-Id: <20211218194250.247633-15-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211218194250.247633-1-richard.henderson@linaro.org> References: <20211218194250.247633-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::52c (failed) Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::52c; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x52c.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1639857170551100001 Content-Type: text/plain; charset="utf-8" While there are no specific 16-bit rotate instructions, there are double-word shifts, which can perform the same operation. Signed-off-by: Richard Henderson Reviewed-by: Alex Benn=C3=A9e --- tcg/i386/tcg-target.c.inc | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/tcg/i386/tcg-target.c.inc b/tcg/i386/tcg-target.c.inc index 30b9afc1d3..54fb8321a9 100644 --- a/tcg/i386/tcg-target.c.inc +++ b/tcg/i386/tcg-target.c.inc @@ -3350,6 +3350,8 @@ int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type, = unsigned vece) case INDEX_op_rotlv_vec: case INDEX_op_rotrv_vec: switch (vece) { + case MO_16: + return have_avx512vbmi2 ? -1 : 0; case MO_32: case MO_64: return have_avx512vl ? 1 : have_avx2 ? -1 : 0; @@ -3494,6 +3496,12 @@ static void expand_vec_rotli(TCGType type, unsigned = vece, return; } =20 + if (have_avx512vbmi2) { + vec_gen_4(INDEX_op_x86_vpshldi_vec, type, vece, + tcgv_vec_arg(v0), tcgv_vec_arg(v1), tcgv_vec_arg(v1), im= m); + return; + } + t =3D tcg_temp_new_vec(type); tcg_gen_shli_vec(vece, t, v1, imm); tcg_gen_shri_vec(vece, v0, v1, (8 << vece) - imm); @@ -3524,8 +3532,16 @@ static void expand_vec_rotls(TCGType type, unsigned = vece, static void expand_vec_rotv(TCGType type, unsigned vece, TCGv_vec v0, TCGv_vec v1, TCGv_vec sh, bool right) { - TCGv_vec t =3D tcg_temp_new_vec(type); + TCGv_vec t; =20 + if (have_avx512vbmi2) { + vec_gen_4(right ? INDEX_op_x86_vpshrdv_vec : INDEX_op_x86_vpshldv_= vec, + type, vece, tcgv_vec_arg(v0), tcgv_vec_arg(v1), + tcgv_vec_arg(v1), tcgv_vec_arg(sh)); + return; + } + + t =3D tcg_temp_new_vec(type); tcg_gen_dupi_vec(vece, t, 8 << vece); tcg_gen_sub_vec(vece, t, t, sh); if (right) { --=20 2.25.1