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[69.222.133.165]) by smtp.gmail.com with ESMTPSA id f84sm33383540oig.43.2019.08.09.21.13.16 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Fri, 09 Aug 2019 21:13:16 -0700 (PDT) From: Jan Bobek To: qemu-devel@nongnu.org Date: Sat, 10 Aug 2019 00:12:25 -0400 Message-Id: <20190810041255.6820-10-jan.bobek@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190810041255.6820-1-jan.bobek@gmail.com> References: <20190810041255.6820-1-jan.bobek@gmail.com> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::343 Subject: [Qemu-devel] [RFC PATCH v2 09/39] target/i386: make variable is_xmm const X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jan Bobek , =?utf-8?q?Alex_Benn=C3=A9e?= , Richard Henderson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP The variable is_xmm does not change value after assignment, so make this fact explicit by marking it const. Signed-off-by: Jan Bobek Reviewed-by: Richard Henderson --- target/i386/translate.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/target/i386/translate.c b/target/i386/translate.c index 8bf39b73c4..c5ec309fe2 100644 --- a/target/i386/translate.c +++ b/target/i386/translate.c @@ -3042,7 +3042,7 @@ static const struct SSEOpHelper_eppi sse_op_table7[256] = { static void gen_sse(CPUX86State *env, DisasContext *s, int b) { - int op1_offset, op2_offset, is_xmm, val; + int op1_offset, op2_offset, val; int modrm, mod, rm, reg; SSEFunc_0_epp sse_fn_epp; SSEFunc_0_eppi sse_fn_eppi; @@ -3056,20 +3056,15 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b) : s->prefix & PREFIX_REPZ ? 2 : s->prefix & PREFIX_REPNZ ? 3 : 0; + const int is_xmm = + (0x10 <= b && b <= 0x5f) + || b == 0xc6 + || b == 0xc2 + || !!b1; sse_fn_epp = sse_op_table1[b][b1]; if (!sse_fn_epp) { goto unknown_op; } - if ((b <= 0x5f && b >= 0x10) || b == 0xc6 || b == 0xc2) { - is_xmm = 1; - } else { - if (b1 == 0) { - /* MMX case */ - is_xmm = 0; - } else { - is_xmm = 1; - } - } /* simple MMX/SSE operation */ if (s->flags & HF_TS_MASK) { gen_exception(s, EXCP07_PREX);