Message ID | 20210621231849.1871164-25-richard.henderson@linaro.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Mon, 21 Jun 2021 16:19:06 -0700 (PDT) Received: from localhost.localdomain ([71.212.149.176]) by smtp.gmail.com with ESMTPSA id 135sm14429952pgf.20.2021.06.21.16.19.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Jun 2021 16:19:05 -0700 (PDT) From: Richard Henderson <richard.henderson@linaro.org> To: qemu-devel@nongnu.org Subject: [PATCH v2 24/29] target/i386: Improve bswap translation Date: Mon, 21 Jun 2021 16:18:44 -0700 Message-Id: <20210621231849.1871164-25-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210621231849.1871164-1-richard.henderson@linaro.org> References: <20210621231849.1871164-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1034; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1034.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Cc: Peter Maydell <peter.maydell@linaro.org> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org> |
Series |
tcg: bswap improvements
|
expand
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diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index e8a9dcd21a..b21873ed23 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -7195,17 +7195,11 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu) reg = (b & 7) | REX_B(s); #ifdef TARGET_X86_64 if (dflag == MO_64) { - gen_op_mov_v_reg(s, MO_64, s->T0, reg); - tcg_gen_bswap64_i64(s->T0, s->T0); - gen_op_mov_reg_v(s, MO_64, reg, s->T0); - } else -#endif - { - gen_op_mov_v_reg(s, MO_32, s->T0, reg); - tcg_gen_ext32u_tl(s->T0, s->T0); - tcg_gen_bswap32_tl(s->T0, s->T0, TCG_BSWAP_IZ | TCG_BSWAP_OZ); - gen_op_mov_reg_v(s, MO_32, reg, s->T0); + tcg_gen_bswap64_i64(cpu_regs[reg], cpu_regs[reg]); + break; } +#endif + tcg_gen_bswap32_tl(cpu_regs[reg], cpu_regs[reg], TCG_BSWAP_OZ); break; case 0xd6: /* salc */ if (CODE64(s))