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[211.28.135.144]) by smtp.gmail.com with ESMTPSA id t21sm48501628pgg.24.2018.12.25.12.57.11 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 25 Dec 2018 12:57:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=CA8Yy8kQm8FvWeCQYdlXRjZqDQYPeW0QvjBq7JtZ3JM=; b=gGQCcrTQj4tHog63gWMgFCxmA1kB7QUMPD2Jm3eRVFGHOLcl9u5gTaiwdCF2F+7Spm zLoIuuvLAkUz4jrbBjjmWQ+b2nC4wGDhQLiHSBiu3lw35rKIsg0CJTVXpAOw64xsizQb DRu1cqcwIq5ZDMtz3lKVnhZUtRBxUfKeu9Bxk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=CA8Yy8kQm8FvWeCQYdlXRjZqDQYPeW0QvjBq7JtZ3JM=; b=d2cFDM0CK2YE0n/TqypZcTWdd0EZrcSkb/2Vx9uQDXFE0bvHbBAvAk1FDpJ6LyuDCX ObQtS3pFKcCJ7wCtS2M8qzirpmw39TBVznm9eewsphAYhW6D8ucziGK2/bA3SaJVfrDD EuKw1HWhVbRWuy1UZR1bB6WvrmeHigNHoyVp1LDiSa4sq2RoiK9IkfeQoxGQuvgelu55 dKAPLRoqEN+4cn/s0mUEPY+Qhf+t88fsbRFNtS3wCKSQS6huLvqKgVIFzWp9nY3eeM+Y 626D4h5HHzdtAo36WlLmkxXC2IIZ4r6jjDGSmuAtRheqIaGd9yPqGKHT4qu6k3cIOm43 tSxw== X-Gm-Message-State: AJcUukdqoQQ5Z/pWSgxs+Vyu11Ed+GJlVYKA8Jpdu1MTO1VwH4wPKVpK b++ScMJaZucrw3gdbkaa/pmMY5XnIQw= X-Google-Smtp-Source: ALg8bN4gh17oPQV5Y2KxI5xdL6pp2MfQMFC97K6SA7r1Jzc/+GtkvDbgRiCwIwmgI/mgP80tnkGb+w== X-Received: by 2002:a63:2263:: with SMTP id t35mr16622367pgm.69.1545771438882; Tue, 25 Dec 2018 12:57:18 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Date: Wed, 26 Dec 2018 07:55:00 +1100 Message-Id: <20181225205529.10874-14-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20181225205529.10874-1-richard.henderson@linaro.org> References: <20181225205529.10874-1-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::42b Subject: [Qemu-devel] [PULL 13/42] tcg/riscv: Add the out load and store instructions 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: , Cc: peter.maydell@linaro.org, Michael Clark , Alistair Francis Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Alistair Francis Signed-off-by: Alistair Francis Signed-off-by: Michael Clark Reviewed-by: Richard Henderson Message-Id: Signed-off-by: Richard Henderson --- tcg/riscv/tcg-target.inc.c | 65 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/tcg/riscv/tcg-target.inc.c b/tcg/riscv/tcg-target.inc.c index 48399480b2..65718df7ad 100644 --- a/tcg/riscv/tcg-target.inc.c +++ b/tcg/riscv/tcg-target.inc.c @@ -630,3 +630,68 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg ret, = TCGReg arg) { tcg_out_opc_imm(s, OPC_ADDIW, ret, arg, 0); } + +static void tcg_out_ldst(TCGContext *s, RISCVInsn opc, TCGReg data, + TCGReg addr, intptr_t offset) +{ + intptr_t imm12 =3D sextreg(offset, 0, 12); + + if (offset !=3D imm12) { + intptr_t diff =3D offset - (uintptr_t)s->code_ptr; + + if (addr =3D=3D TCG_REG_ZERO && diff =3D=3D (int32_t)diff) { + imm12 =3D sextreg(diff, 0, 12); + tcg_out_opc_upper(s, OPC_AUIPC, TCG_REG_TMP2, diff - imm12); + } else { + tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP2, offset - imm12); + if (addr !=3D TCG_REG_ZERO) { + tcg_out_opc_reg(s, OPC_ADD, TCG_REG_TMP2, TCG_REG_TMP2, ad= dr); + } + } + addr =3D TCG_REG_TMP2; + } + + switch (opc) { + case OPC_SB: + case OPC_SH: + case OPC_SW: + case OPC_SD: + tcg_out_opc_store(s, opc, addr, data, imm12); + break; + case OPC_LB: + case OPC_LBU: + case OPC_LH: + case OPC_LHU: + case OPC_LW: + case OPC_LWU: + case OPC_LD: + tcg_out_opc_imm(s, opc, data, addr, imm12); + break; + default: + g_assert_not_reached(); + } +} + +static void tcg_out_ld(TCGContext *s, TCGType type, TCGReg arg, + TCGReg arg1, intptr_t arg2) +{ + bool is32bit =3D (TCG_TARGET_REG_BITS =3D=3D 32 || type =3D=3D TCG_TYP= E_I32); + tcg_out_ldst(s, is32bit ? OPC_LW : OPC_LD, arg, arg1, arg2); +} + +static void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg, + TCGReg arg1, intptr_t arg2) +{ + bool is32bit =3D (TCG_TARGET_REG_BITS =3D=3D 32 || type =3D=3D TCG_TYP= E_I32); + tcg_out_ldst(s, is32bit ? OPC_SW : OPC_SD, arg, arg1, arg2); +} + +static bool tcg_out_sti(TCGContext *s, TCGType type, TCGArg val, + TCGReg base, intptr_t ofs) +{ + if (val =3D=3D 0) { + tcg_out_st(s, type, TCG_REG_ZERO, base, ofs); + return true; + } + return false; +} --=20 2.17.2