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Tue, 01 Jun 2021 08:01:25 -0700 (PDT) Received: from localhost.localdomain ([2607:fb90:806c:3e8a:9cf0:b3be:5e07:b99f]) by smtp.gmail.com with ESMTPSA id f8sm4109909ilj.37.2021.06.01.08.01.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Jun 2021 08:01:24 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v7 12/27] tcg/tci: Reserve r13 for a temporary Date: Tue, 1 Jun 2021 08:00:51 -0700 Message-Id: <20210601150106.12761-13-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210601150106.12761-1-richard.henderson@linaro.org> References: <20210601150106.12761-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::d29; envelope-from=richard.henderson@linaro.org; helo=mail-io1-xd29.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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" We're about to adjust the offset range on host memory ops, and the format of branches. Both will require a temporary. Tested-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- tcg/tci/tcg-target.h | 1 + tcg/tci/tcg-target.c.inc | 1 + 2 files changed, 2 insertions(+) diff --git a/tcg/tci/tcg-target.h b/tcg/tci/tcg-target.h index 4df10e2e83..1558a6e44e 100644 --- a/tcg/tci/tcg-target.h +++ b/tcg/tci/tcg-target.h @@ -155,6 +155,7 @@ typedef enum { TCG_REG_R14, TCG_REG_R15, + TCG_REG_TMP = TCG_REG_R13, TCG_AREG0 = TCG_REG_R14, TCG_REG_CALL_STACK = TCG_REG_R15, } TCGReg; diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc index 9ab7916300..d80fec3488 100644 --- a/tcg/tci/tcg-target.c.inc +++ b/tcg/tci/tcg-target.c.inc @@ -822,6 +822,7 @@ static void tcg_target_init(TCGContext *s) MAKE_64BIT_MASK(TCG_REG_R0, 64 / TCG_TARGET_REG_BITS); s->reserved_regs = 0; + tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP); tcg_regset_set_reg(s->reserved_regs, TCG_REG_CALL_STACK); /* The call arguments come first, followed by the temp storage. */ -- 2.25.1