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[97.126.108.236]) by smtp.gmail.com with ESMTPSA id o14sm1061063pfi.158.2017.08.03.22.44.40 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 03 Aug 2017 22:44:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:subject:date:message-id:in-reply-to:references; bh=mlsMk8PZS6npqfquBK8rK+xl8vG7eDKmHuDcvTYKP24=; b=WjbKTlsyrFoshNP7F1BqR0uk0Md4MbP+iCzRP3Agquq62i1AiWI6DKlEwWIDx0WXRp CFI60bJ5Kv2ayNMaG8PCz3puEk443NZo03P6V4NW+GR8LcVB+/AFhZzuJCCJrlwgEMti EVBc2CIswwjEM7DwvODfpBtHpY6dTRbLj3WhiX0Pys8ZYJQ3pshevPjJ+35O6IT7SwuQ R4lK+0VylTanq1WdOMXyFKGGJYXLXvNOyVAtgXSYddha3vUQZGRyP0+y/XhvuZZye58k SFVW5nWDW4hYHelXyECN64M6IqrNMEVVm8U+n7ga+3cIUz85+XK5b0sY9t+iw8hnlM4I l10A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:subject:date:message-id :in-reply-to:references; bh=mlsMk8PZS6npqfquBK8rK+xl8vG7eDKmHuDcvTYKP24=; b=N1nUqm4QrzeNphh3H6wivMRqp7ABeZNhuBHkVnY3vO2AN/SOgmkMJjDSvJOnx6Arj5 FlZxHOkHHSrAGd22K/VXaMgr8Skz7A629tHmSfTL6LyIFGxTq64fNGM22EYHMHKHfcc9 4Zb5IxG+Lq1Hbj1NseP0jUHi07BboTaoUWGYtOr9oz9qbradjJBhzTXplAAX/WV1JvNk MCf5++tv2mx8sEYSDh4mR3SF+dsUFzsuQH/pq0YCn0DShKbSMNiGPNPxC/S8qAr+hknp fGtybccQJv6NWXjjDOC0IZqGLiSA4u8azefFG+7qnZWuJPdjA4V89OwDazh5CjE58RPU d9aA== X-Gm-Message-State: AIVw112c3vY3Lv8czUUdWoMu3b+/vt/tI8TLOpaz3zhq9DmDbkrNc8tA XJBo/nqrBiPaYe1sfuU= X-Received: by 10.99.100.198 with SMTP id y189mr1117498pgb.355.1501825481669; Thu, 03 Aug 2017 22:44:41 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Thu, 3 Aug 2017 22:44:17 -0700 Message-Id: <20170804054426.10590-15-rth@twiddle.net> X-Mailer: git-send-email 2.13.3 In-Reply-To: <20170804054426.10590-1-rth@twiddle.net> References: <20170804054426.10590-1-rth@twiddle.net> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400e:c05::241 Subject: [Qemu-devel] [PATCH for-2.11 14/23] tcg/sparc: Use constant pool for movi 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+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 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson --- tcg/sparc/tcg-target.h | 2 ++ tcg/sparc/tcg-target.inc.c | 77 +++++++++++++++++++++++++++++++++---------= ---- 2 files changed, 58 insertions(+), 21 deletions(-) diff --git a/tcg/sparc/tcg-target.h b/tcg/sparc/tcg-target.h index 3ac0bd33d3..83f9397e04 100644 --- a/tcg/sparc/tcg-target.h +++ b/tcg/sparc/tcg-target.h @@ -173,4 +173,6 @@ static inline void flush_icache_range(uintptr_t start, = uintptr_t stop) =20 void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t); =20 +#define TCG_TARGET_NEED_POOL_LABELS + #endif diff --git a/tcg/sparc/tcg-target.inc.c b/tcg/sparc/tcg-target.inc.c index 7d73c25347..bd7c1461c6 100644 --- a/tcg/sparc/tcg-target.inc.c +++ b/tcg/sparc/tcg-target.inc.c @@ -22,6 +22,8 @@ * THE SOFTWARE. */ =20 +#include "tcg-pool.inc.c" + #ifdef CONFIG_DEBUG_TCG static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] =3D { "%g0", @@ -292,33 +294,46 @@ static inline int check_fit_i32(int32_t val, unsigned= int bits) static void patch_reloc(tcg_insn_unit *code_ptr, int type, intptr_t value, intptr_t addend) { - uint32_t insn; + uint32_t insn =3D *code_ptr; + intptr_t pcrel; =20 - tcg_debug_assert(addend =3D=3D 0); - value =3D tcg_ptr_byte_diff((tcg_insn_unit *)value, code_ptr); + value +=3D addend; + pcrel =3D tcg_ptr_byte_diff((tcg_insn_unit *)value, code_ptr); =20 switch (type) { case R_SPARC_WDISP16: - if (!check_fit_ptr(value >> 2, 16)) { - tcg_abort(); - } - insn =3D *code_ptr; + assert(check_fit_ptr(pcrel >> 2, 16)); insn &=3D ~INSN_OFF16(-1); - insn |=3D INSN_OFF16(value); - *code_ptr =3D insn; + insn |=3D INSN_OFF16(pcrel); break; case R_SPARC_WDISP19: - if (!check_fit_ptr(value >> 2, 19)) { - tcg_abort(); - } - insn =3D *code_ptr; + assert(check_fit_ptr(pcrel >> 2, 19)); insn &=3D ~INSN_OFF19(-1); - insn |=3D INSN_OFF19(value); - *code_ptr =3D insn; + insn |=3D INSN_OFF19(pcrel); + break; + case R_SPARC_13: + /* Note that we're abusing this reloc type for our own needs. */ + if (!check_fit_ptr(value, 13)) { + int adj =3D (value > 0 ? 0xff8 : -0x1000); + value -=3D adj; + assert(check_fit_ptr(value, 13)); + *code_ptr++ =3D (ARITH_ADD | INSN_RD(TCG_REG_T2) + | INSN_RS1(TCG_REG_TB) | INSN_IMM13(adj)); + insn ^=3D INSN_RS1(TCG_REG_TB) ^ INSN_RS1(TCG_REG_T2); + } + insn &=3D ~INSN_IMM13(-1); + insn |=3D INSN_IMM13(value); break; + case R_SPARC_32: + /* Note that we're abusing this reloc type for our own needs. */ + code_ptr[0] =3D deposit32(code_ptr[0], 0, 22, value >> 10); + code_ptr[1] =3D deposit32(code_ptr[1], 0, 10, value); + return; default: - tcg_abort(); + g_assert_not_reached(); } + + *code_ptr =3D insn; } =20 /* parse target specific constraints */ @@ -474,12 +489,24 @@ static void tcg_out_movi_int(TCGContext *s, TCGType t= ype, TCGReg ret, return; } =20 - if (USE_REG_TB && !in_prologue) { - intptr_t diff =3D arg - (uintptr_t)s->code_gen_ptr; - if (check_fit_ptr(diff, 13)) { - tcg_out_arithi(s, ret, TCG_REG_TB, diff, ARITH_ADD); - return; + if (!in_prologue) { + if (USE_REG_TB) { + intptr_t diff =3D arg - (uintptr_t)s->code_gen_ptr; + if (check_fit_ptr(diff, 13)) { + tcg_out_arithi(s, ret, TCG_REG_TB, diff, ARITH_ADD); + } else { + new_pool_label(s, arg, R_SPARC_13, s->code_ptr, + -(intptr_t)s->code_gen_ptr); + tcg_out32(s, LDX | INSN_RD(ret) | INSN_RS1(TCG_REG_TB)); + /* May be used to extend the 13-bit range in patch_reloc. = */ + tcg_out32(s, NOP); + } + } else { + new_pool_label(s, arg, R_SPARC_32, s->code_ptr, 0); + tcg_out_sethi(s, ret, 0); + tcg_out32(s, LDX | INSN_RD(ret) | INSN_RS1(ret) | INSN_IMM13(0= )); } + return; } =20 /* A 64-bit constant decomposed into 2 32-bit pieces. */ @@ -1058,6 +1085,14 @@ static void tcg_target_qemu_prologue(TCGContext *s) #endif } =20 +static void tcg_out_nop_fill(tcg_insn_unit *p, int count) +{ + int i; + for (i =3D 0; i < count; ++i) { + p[i] =3D NOP; + } +} + #if defined(CONFIG_SOFTMMU) /* Perform the TLB load and compare. =20 --=20 2.13.3