From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 47694 invoked by alias); 9 Jun 2016 16:54:30 -0000 Mailing-List: contact gcc-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-patches-owner@gcc.gnu.org Received: (qmail 46959 invoked by uid 89); 9 Jun 2016 16:54:23 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.8 required=5.0 tests=AWL,BAYES_00,KAM_LAZY_DOMAIN_SECURITY,KAM_STOCKGEN,RCVD_IN_DNSWL_NONE,RP_MATCHES_RCVD autolearn=no version=3.3.2 spammy= X-HELO: smtp.ispras.ru Received: from smtp.ispras.ru (HELO smtp.ispras.ru) (83.149.199.79) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 09 Jun 2016 16:54:16 +0000 Received: from condor.intra.ispras.ru (unknown [83.149.199.91]) by smtp.ispras.ru (Postfix) with ESMTP id 59760203B8; Thu, 9 Jun 2016 19:54:01 +0300 (MSK) Received: by condor.intra.ispras.ru (Postfix, from userid 23246) id EBBB1122632C; Thu, 9 Jun 2016 19:54:00 +0300 (MSK) From: Alexander Monakov To: gcc-patches@gcc.gnu.org Cc: Nathan Sidwell , Sandra Loosemore Subject: [PATCH 4/8] nvptx -mgomp Date: Thu, 09 Jun 2016 16:54:00 -0000 Message-Id: <1465491240-21514-5-git-send-email-amonakov@ispras.ru> In-Reply-To: <1465491240-21514-1-git-send-email-amonakov@ispras.ru> References: <1465491240-21514-1-git-send-email-amonakov@ispras.ru> X-IsSubscribed: yes X-SW-Source: 2016-06/txt/msg00719.txt.bz2 This patch adds option -mgomp which enables -msoft-stack plus -muniform-simt, and builds a multilib with it. This codegen convention is used for OpenMP offloading. * config/nvptx/nvptx.c (nvptx_option_override): Handle TARGET_GOMP. * config/nvptx/nvptx.opt (mgomp): New option. * config/nvptx/t-nvptx (MULTILIB_OPTIONS): New. * doc/invoke.texi (mgomp): Document. --- gcc/config/nvptx/nvptx.c | 3 +++ gcc/config/nvptx/nvptx.opt | 4 ++++ gcc/config/nvptx/t-nvptx | 2 ++ gcc/doc/invoke.texi | 5 +++++ 4 files changed, 14 insertions(+) diff --git a/gcc/config/nvptx/nvptx.c b/gcc/config/nvptx/nvptx.c index f91573a..294002e 100644 --- a/gcc/config/nvptx/nvptx.c +++ b/gcc/config/nvptx/nvptx.c @@ -192,6 +192,9 @@ nvptx_option_override (void) worker_red_sym = gen_rtx_SYMBOL_REF (Pmode, "__worker_red"); SET_SYMBOL_DATA_AREA (worker_red_sym, DATA_AREA_SHARED); worker_red_align = GET_MODE_ALIGNMENT (SImode) / BITS_PER_UNIT; + + if (TARGET_GOMP) + target_flags |= MASK_SOFT_STACK | MASK_UNIFORM_SIMT; } /* Return a ptx type for MODE. If PROMOTE, then use .u32 for QImode to diff --git a/gcc/config/nvptx/nvptx.opt b/gcc/config/nvptx/nvptx.opt index 0d46e1d..cb6194d 100644 --- a/gcc/config/nvptx/nvptx.opt +++ b/gcc/config/nvptx/nvptx.opt @@ -40,3 +40,7 @@ Use custom stacks instead of local memory for automatic storage. muniform-simt Target Report Mask(UNIFORM_SIMT) Generate code that can keep local state uniform across all lanes. + +mgomp +Target Report Mask(GOMP) +Generate code for OpenMP offloading: enables -msoft-stack and -muniform-simt. diff --git a/gcc/config/nvptx/t-nvptx b/gcc/config/nvptx/t-nvptx index e2580c9..6c1010d 100644 --- a/gcc/config/nvptx/t-nvptx +++ b/gcc/config/nvptx/t-nvptx @@ -8,3 +8,5 @@ ALL_HOST_OBJS += mkoffload.o mkoffload$(exeext): mkoffload.o collect-utils.o libcommon-target.a $(LIBIBERTY) $(LIBDEPS) +$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \ mkoffload.o collect-utils.o libcommon-target.a $(LIBIBERTY) $(LIBS) + +MULTILIB_OPTIONS = mgomp diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 534025d..bae7f2d 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -19631,6 +19631,11 @@ generation variant is used for OpenMP offloading, but the option is exposed on its own for the purpose of testing the compiler; to generate code suitable for linking into programs using OpenMP offloading, use option @option{-mgomp}. +@item -mgomp +@opindex mgomp +Generate code for use in OpenMP offloading: enables @option{-msoft-stack} and +@option{-muniform-simt} options, and selects corresponding multilib variant. + @end table @node PDP-11 Options -- 2.6.6