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Wed, 10 Jun 2020 06:44:46 +0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 05A6iiFO58196116 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 10 Jun 2020 06:44:44 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 88204AE04D; Wed, 10 Jun 2020 06:44:44 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 63A8CAE053; Wed, 10 Jun 2020 06:44:42 +0000 (GMT) Received: from KewenLins-MacBook-Pro.local (unknown [9.200.53.22]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 10 Jun 2020 06:44:42 +0000 (GMT) Subject: [PATCH 4/7 V2] hook/rs6000: Add vectorize length mode for vector with length To: GCC Patches References: <30906c0d-3b9f-e1e6-156f-c01fcf229cb9@linux.ibm.com> <9a4a4b25-6b41-bbb3-d1b7-146de95693c0@linux.ibm.com> Message-ID: Date: Wed, 10 Jun 2020 14:44:40 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <9a4a4b25-6b41-bbb3-d1b7-146de95693c0@linux.ibm.com> Content-Language: en-US X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216, 18.0.687 definitions=2020-06-10_02:2020-06-10, 2020-06-10 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 mlxscore=0 spamscore=0 lowpriorityscore=0 adultscore=0 cotscore=-2147483648 suspectscore=9 priorityscore=1501 mlxlogscore=999 clxscore=1015 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006100046 X-Spam-Status: No, score=-11.9 required=5.0 tests=BAYES_00, GIT_PATCH_0, KAM_DMARC_STATUS, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: "Kewen.Lin via Gcc-patches" From: "Kewen.Lin" Reply-To: "Kewen.Lin" Cc: Richard Guenther , Bill Schmidt , dje.gcc@gmail.com, Segher Boessenkool Errors-To: gcc-patches-bounces@gcc.gnu.org Sender: "Gcc-patches" v2: Update rs6000 length_mode hook to QImode, also update description of the hook. gcc/ChangeLog: 2020-MM-DD Kewen Lin * config/rs6000/rs6000.c (TARGET_VECTORIZE_LENGTH_MODE): New macro. * doc/tm.texi: Regenerate. * doc/tm.texi.in: New hook. * target.def: Likewise. --- gcc/config/rs6000/rs6000.c | 3 +++ gcc/doc/tm.texi | 8 ++++++++ gcc/doc/tm.texi.in | 2 ++ gcc/target.def | 9 +++++++++ 4 files changed, 22 insertions(+) -- diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 8435bc15d72..89881a352f0 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -1659,6 +1659,9 @@ static const struct attribute_spec rs6000_attribute_table[] = #undef TARGET_HAVE_COUNT_REG_DECR_P #define TARGET_HAVE_COUNT_REG_DECR_P true +#undef TARGET_VECTORIZE_LENGTH_MODE +#define TARGET_VECTORIZE_LENGTH_MODE QImode + /* 1000000000 is infinite cost in IVOPTs. */ #undef TARGET_DOLOOP_COST_FOR_GENERIC #define TARGET_DOLOOP_COST_FOR_GENERIC 1000000000 diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index 6e7d9dc54a9..087a39b840d 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -6084,6 +6084,14 @@ The default implementation returns a @code{MODE_VECTOR_INT} with the same size and number of elements as @var{mode}, if such a mode exists. @end deftypefn +@deftypevr {Target Hook} scalar_int_mode TARGET_VECTORIZE_LENGTH_MODE +For the targets which support length-based partial vectorization, also +known as vector memory access with length, return the scalar int mode to +be used for the length. Normally it should be set according to the +required minimum precision of supported length. +The default is to use @code{word_mode}. +@end deftypevr + @deftypefn {Target Hook} bool TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE (unsigned @var{ifn}) This hook returns true if masked internal function @var{ifn} (really of type @code{internal_fn}) should be considered expensive when the mask is diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in index 3be984bbd5c..83034176b56 100644 --- a/gcc/doc/tm.texi.in +++ b/gcc/doc/tm.texi.in @@ -4181,6 +4181,8 @@ address; but often a machine-dependent strategy can generate better code. @hook TARGET_VECTORIZE_GET_MASK_MODE +@hook TARGET_VECTORIZE_LENGTH_MODE + @hook TARGET_VECTORIZE_EMPTY_MASK_IS_EXPENSIVE @hook TARGET_VECTORIZE_INIT_COST diff --git a/gcc/target.def b/gcc/target.def index 07059a87caf..f64861189cb 100644 --- a/gcc/target.def +++ b/gcc/target.def @@ -1969,6 +1969,15 @@ same size and number of elements as @var{mode}, if such a mode exists.", (machine_mode mode), default_get_mask_mode) +DEFHOOKPOD +(length_mode, + "For the targets which support length-based partial vectorization, also\n\ +known as vector memory access with length, return the scalar int mode to\n\ +be used for the length. Normally it should be set according to the\n\ +required minimum precision of supported length.\n\ +The default is to use @code{word_mode}.", + scalar_int_mode, word_mode) + /* Function to say whether a masked operation is expensive when the mask is all zeros. */ DEFHOOK