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[97.126.123.70]) by smtp.gmail.com with ESMTPSA id g13sm7558851pfo.169.2020.02.14.11.46.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Feb 2020 11:46:49 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 4/4] target/arm: Flush high bits of sve register after AdvSIMD INS Date: Fri, 14 Feb 2020 11:46:43 -0800 Message-Id: <20200214194643.23317-5-richard.henderson@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200214194643.23317-1-richard.henderson@linaro.org> References: <20200214194643.23317-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::443 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: peter.maydell@linaro.org, qemu-arm@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Writes to AdvSIMD registers flush the bits above 128. Signed-off-by: Richard Henderson --- target/arm/translate-a64.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c index b83d09dbcd..bd68588a71 100644 --- a/target/arm/translate-a64.c +++ b/target/arm/translate-a64.c @@ -7412,6 +7412,9 @@ static void handle_simd_inse(DisasContext *s, int rd, int rn, write_vec_element(s, tmp, rd, dst_index, size); tcg_temp_free_i64(tmp); + + /* INS is considered a 128-bit write for SVE. */ + clear_vec_high(s, true, rd); } @@ -7441,6 +7444,9 @@ static void handle_simd_insg(DisasContext *s, int rd, int rn, int imm5) idx = extract32(imm5, 1 + size, 4 - size); write_vec_element(s, cpu_reg(s, rn), rd, idx, size); + + /* INS is considered a 128-bit write for SVE. */ + clear_vec_high(s, true, rd); } /* -- 2.20.1