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[174.21.6.47]) by smtp.gmail.com with ESMTPSA id v73sm5874836pfk.84.2018.02.07.14.55.43 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 07 Feb 2018 14:55:43 -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 :mime-version:content-transfer-encoding; bh=RnU0BD+G25LpnQbnsT0zlIIfb1HSGg6KqvOcvfJ6ScI=; b=jnky9aF0GM5fULvffyyJv6yt07FMniBy7eObwiGPN85Vi6T3Nqta5kB4HWlFGLG2U8 fmOTPVL9QkpP/648tKHqxxNUHIOwox1JN9Itv/mzGqhzlDRKs2NAVeVoDKdJR24Ou17S Qvs7JGMk6CGeNZsr12qwEpsWzmiz7SdjXDTdU= 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:mime-version:content-transfer-encoding; bh=RnU0BD+G25LpnQbnsT0zlIIfb1HSGg6KqvOcvfJ6ScI=; b=IsVblzum/6Eb+THIYKroMhhIDqvTETTd360TY+ieneqf4R+lKnzEVhvsDwcVDuiu9R MZHSfb9/VfmPHn+6/ZPf6r9UACQPj6AdtQ09oDynp3W1ie+Q5ErDCavLGhCGgJKNN6xo cwDo8Sx7CgU92TKtLd6K9b6eGJfM6olxjQF8tpkaHj++bCyl7dTnmXvcL7ikevG7Cvbu Xfw0GxkBQ9xuwJbScvAL7+1ty5/fiSajnwKtRtaZ6FqVHQas2T8azbNZNA/6NiC2gedx 9aHKLigLJBQqelqcv1KVy/3A3lOeQnch2eeb59Te5RbL+tFoc95lWVsCXWgdjjOZiWfB v+3Q== X-Gm-Message-State: APf1xPAAsfb7H+P32eQ/B/HdJ7vh/QXkHOv49bwIL8icMTzty1TzRkyG 0HonV2px3p1myzRowe8lU9CtwuoAZys= X-Google-Smtp-Source: AH8x2244gx7iMCDMZbrfNAGopzjZd+qDU6jKCLEhUMCO5XlZo043hVFF+H8qVYKWVI0tEu5cgyjF1A== X-Received: by 2002:a17:902:7042:: with SMTP id h2-v6mr7581213plt.217.1518044144578; Wed, 07 Feb 2018 14:55:44 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Date: Wed, 7 Feb 2018 14:55:21 -0800 Message-Id: <20180207225540.31698-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180207225540.31698-1-richard.henderson@linaro.org> References: <20180207225540.31698-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400e:c01::241 Subject: [Qemu-devel] [PULL 01/20] tcg: Allow multiple word entries into the constant pool 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 Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 This will be required for storing vector constants. Reviewed-by: Alex Benn=C3=A9e Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- tcg/tcg-pool.inc.c | 115 +++++++++++++++++++++++++++++++++++++++++++------= ---- 1 file changed, 93 insertions(+), 22 deletions(-) diff --git a/tcg/tcg-pool.inc.c b/tcg/tcg-pool.inc.c index 8a85131405..ecf7c9282b 100644 --- a/tcg/tcg-pool.inc.c +++ b/tcg/tcg-pool.inc.c @@ -22,39 +22,110 @@ =20 typedef struct TCGLabelPoolData { struct TCGLabelPoolData *next; - tcg_target_ulong data; tcg_insn_unit *label; - intptr_t addend; - int type; + int32_t addend; + uint16_t rtype; + uint16_t nlong; + tcg_target_ulong data[]; } TCGLabelPoolData; =20 =20 -static void new_pool_label(TCGContext *s, tcg_target_ulong data, int type, - tcg_insn_unit *label, intptr_t addend) +static TCGLabelPoolData *new_pool_alloc(TCGContext *s, int nlong, int rtyp= e, + tcg_insn_unit *label, int addend) { - TCGLabelPoolData *n =3D tcg_malloc(sizeof(*n)); - TCGLabelPoolData *i, **pp; + TCGLabelPoolData *n =3D tcg_malloc(sizeof(TCGLabelPoolData) + + sizeof(tcg_target_ulong) * nlong); =20 - n->data =3D data; n->label =3D label; - n->type =3D type; n->addend =3D addend; + n->rtype =3D rtype; + n->nlong =3D nlong; + return n; +} + +static void new_pool_insert(TCGContext *s, TCGLabelPoolData *n) +{ + TCGLabelPoolData *i, **pp; + int nlong =3D n->nlong; =20 /* Insertion sort on the pool. */ - for (pp =3D &s->pool_labels; (i =3D *pp) && i->data < data; pp =3D &i-= >next) { - continue; + for (pp =3D &s->pool_labels; (i =3D *pp) !=3D NULL; pp =3D &i->next) { + if (nlong > i->nlong) { + break; + } + if (nlong < i->nlong) { + continue; + } + if (memcmp(n->data, i->data, sizeof(tcg_target_ulong) * nlong) >= =3D 0) { + break; + } } n->next =3D *pp; *pp =3D n; } =20 +/* The "usual" for generic integer code. */ +static inline void new_pool_label(TCGContext *s, tcg_target_ulong d, int r= type, + tcg_insn_unit *label, int addend) +{ + TCGLabelPoolData *n =3D new_pool_alloc(s, 1, rtype, label, addend); + n->data[0] =3D d; + new_pool_insert(s, n); +} + +/* For v64 or v128, depending on the host. */ +static inline void new_pool_l2(TCGContext *s, int rtype, tcg_insn_unit *la= bel, + int addend, tcg_target_ulong d0, + tcg_target_ulong d1) +{ + TCGLabelPoolData *n =3D new_pool_alloc(s, 2, rtype, label, addend); + n->data[0] =3D d0; + n->data[1] =3D d1; + new_pool_insert(s, n); +} + +/* For v128 or v256, depending on the host. */ +static inline void new_pool_l4(TCGContext *s, int rtype, tcg_insn_unit *la= bel, + int addend, tcg_target_ulong d0, + tcg_target_ulong d1, tcg_target_ulong d2, + tcg_target_ulong d3) +{ + TCGLabelPoolData *n =3D new_pool_alloc(s, 4, rtype, label, addend); + n->data[0] =3D d0; + n->data[1] =3D d1; + n->data[2] =3D d2; + n->data[3] =3D d3; + new_pool_insert(s, n); +} + +/* For v256, for 32-bit host. */ +static inline void new_pool_l8(TCGContext *s, int rtype, tcg_insn_unit *la= bel, + int addend, tcg_target_ulong d0, + tcg_target_ulong d1, tcg_target_ulong d2, + tcg_target_ulong d3, tcg_target_ulong d4, + tcg_target_ulong d5, tcg_target_ulong d6, + tcg_target_ulong d7) +{ + TCGLabelPoolData *n =3D new_pool_alloc(s, 8, rtype, label, addend); + n->data[0] =3D d0; + n->data[1] =3D d1; + n->data[2] =3D d2; + n->data[3] =3D d3; + n->data[4] =3D d4; + n->data[5] =3D d5; + n->data[6] =3D d6; + n->data[7] =3D d7; + new_pool_insert(s, n); +} + /* To be provided by cpu/tcg-target.inc.c. */ static void tcg_out_nop_fill(tcg_insn_unit *p, int count); =20 static bool tcg_out_pool_finalize(TCGContext *s) { TCGLabelPoolData *p =3D s->pool_labels; - tcg_target_ulong d, *a; + TCGLabelPoolData *l =3D NULL; + void *a; =20 if (p =3D=3D NULL) { return true; @@ -62,24 +133,24 @@ static bool tcg_out_pool_finalize(TCGContext *s) =20 /* ??? Round up to qemu_icache_linesize, but then do not round again when allocating the next TranslationBlock structure. */ - a =3D (void *)ROUND_UP((uintptr_t)s->code_ptr, sizeof(tcg_target_ulong= )); + a =3D (void *)ROUND_UP((uintptr_t)s->code_ptr, + sizeof(tcg_target_ulong) * p->nlong); tcg_out_nop_fill(s->code_ptr, (tcg_insn_unit *)a - s->code_ptr); s->data_gen_ptr =3D a; =20 - /* Ensure the first comparison fails. */ - d =3D p->data + 1; - for (; p !=3D NULL; p =3D p->next) { - if (p->data !=3D d) { - d =3D p->data; - if (unlikely((void *)a > s->code_gen_highwater)) { + size_t size =3D sizeof(tcg_target_ulong) * p->nlong; + if (!l || l->nlong !=3D p->nlong || memcmp(l->data, p->data, size)= ) { + if (unlikely(a > s->code_gen_highwater)) { return false; } - *a++ =3D d; + memcpy(a, p->data, size); + a +=3D size; + l =3D p; } - patch_reloc(p->label, p->type, (intptr_t)(a - 1), p->addend); + patch_reloc(p->label, p->rtype, (intptr_t)a - size, p->addend); } =20 - s->code_ptr =3D (void *)a; + s->code_ptr =3D a; return true; } --=20 2.14.3