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[97.113.13.231]) by smtp.gmail.com with ESMTPSA id m9sm2751274pgd.23.2019.05.18.12.02.15 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 18 May 2019 12:02:16 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Sat, 18 May 2019 12:01:54 -0700 Message-Id: <20190518190157.21255-14-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190518190157.21255-1-richard.henderson@linaro.org> References: <20190518190157.21255-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::441 Subject: [Qemu-devel] [PATCH 13/16] tcg/aarch64: Use MVNI in tcg_out_dupi_vec X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 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" The compliment of a subset of immediates can be computed with a single instruction. Signed-off-by: Richard Henderson --- tcg/aarch64/tcg-target.inc.c | 11 +++++++++++ 1 file changed, 11 insertions(+) -- 2.17.1 diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c index 1422dfebe2..0b8b733805 100644 --- a/tcg/aarch64/tcg-target.inc.c +++ b/tcg/aarch64/tcg-target.inc.c @@ -494,6 +494,7 @@ typedef enum { /* AdvSIMD modified immediate */ I3606_MOVI = 0x0f000400, + I3606_MVNI = 0x2f000400, /* AdvSIMD shift by immediate */ I3614_SSHR = 0x0f000400, @@ -838,8 +839,13 @@ static void tcg_out_dupi_vec(TCGContext *s, TCGType type, tcg_out_insn(s, 3606, MOVI, q, rd, 0, cmode, imm8); return; } + if (is_shimm16(~v16, &cmode, &imm8)) { + tcg_out_insn(s, 3606, MVNI, q, rd, 0, cmode, imm8); + return; + } } else if (v64 == dup_const(MO_32, v64)) { uint32_t v32 = v64; + uint32_t n32 = ~v32; if (is_shimm32(v32, &cmode, &imm8) || is_soimm32(v32, &cmode, &imm8) || @@ -847,6 +853,11 @@ static void tcg_out_dupi_vec(TCGContext *s, TCGType type, tcg_out_insn(s, 3606, MOVI, q, rd, 0, cmode, imm8); return; } + if (is_shimm32(n32, &cmode, &imm8) || + is_soimm32(n32, &cmode, &imm8)) { + tcg_out_insn(s, 3606, MVNI, q, rd, 0, cmode, imm8); + return; + } } else if (is_fimm64(v64, &cmode, &imm8)) { tcg_out_insn(s, 3606, MOVI, q, rd, 1, cmode, imm8); return;