From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by sourceware.org (Postfix) with ESMTPS id 4892B3858D35 for ; Tue, 4 Jul 2023 12:26:17 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 4892B3858D35 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=intel.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1688473577; x=1720009577; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=YEv+/a+MlZp+sA8+lXif6GK1Ooowf+zaS+zP4W0qRjQ=; b=azLcsKOEK420/vb+2YmLG8dXDuKhLbLxcHGmfZXn0pOd3Xx8gz+rtF0S YXVl1AuBM7MxNQLwBs9D+/uVZejpI9+efEInkgHq/X0UOlSHoaLbPta86 NyJrOD3oaa5SxCgBjkDIk3T1wgAIRjYTRluqF0VThXPc02pD6oIKJEZLP Q2a8dUDafhc75aOXZTZLbX5+QOzMN6ksxW95Ir3q5tQudO6wOd1eaml6v OP9h3j1PNeIylqFUGU15TEcXbUAR+5z8uVnIuYBRNt6oI4tyuTMyP5sJC 5M786wtLZaOOYmxNBeB8w0T+rqNNHqbyACUAnEbYTw10kAHhx4P4YEFCs g==; X-IronPort-AV: E=McAfee;i="6600,9927,10760"; a="360589785" X-IronPort-AV: E=Sophos;i="6.01,180,1684825200"; d="scan'208";a="360589785" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Jul 2023 05:26:15 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10760"; a="718902499" X-IronPort-AV: E=Sophos;i="6.01,180,1684825200"; d="scan'208";a="718902499" Received: from shvmail02.sh.intel.com ([10.239.244.9]) by orsmga002.jf.intel.com with ESMTP; 04 Jul 2023 05:26:13 -0700 Received: from pli-ubuntu.sh.intel.com (pli-ubuntu.sh.intel.com [10.239.159.47]) by shvmail02.sh.intel.com (Postfix) with ESMTP id 9DF7A1006F21; Tue, 4 Jul 2023 20:26:12 +0800 (CST) From: pan2.li@intel.com To: gcc-patches@gcc.gnu.org Cc: juzhe.zhong@rivai.ai, rdapp.gcc@gmail.com, jeffreyalaw@gmail.com, pan2.li@intel.com, yanzhang.wang@intel.com, kito.cheng@gmail.com Subject: [PATCH v1] RISC-V: Use FRM_DYN when add the rounding mode operand Date: Tue, 4 Jul 2023 20:26:11 +0800 Message-Id: <20230704122611.4128668-1-pan2.li@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-11.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,GIT_PATCH_0,SPF_HELO_NONE,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: From: Pan Li This patch would like to take FRM_DYN const rtx as the rounding mode operand according to the RVV spec, which takes the dyn as the only rounding mode for floating-point. Signed-off-by: Pan Li gcc/ChangeLog: * config/riscv/riscv-vector-builtins.cc (function_expander::use_exact_insn): Use FRM_DYN instead of const0. --- gcc/config/riscv/riscv-vector-builtins.cc | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/gcc/config/riscv/riscv-vector-builtins.cc b/gcc/config/riscv/riscv-vector-builtins.cc index 648c765a5d1..3a53b56effa 100644 --- a/gcc/config/riscv/riscv-vector-builtins.cc +++ b/gcc/config/riscv/riscv-vector-builtins.cc @@ -3569,11 +3569,10 @@ function_expander::use_exact_insn (insn_code icode) if (base->has_rounding_mode_operand_p ()) add_input_operand (call_expr_nargs (exp) - 2); - /* TODO: Currently, we don't support intrinsic that is modeling rounding mode. - We add default rounding mode for the intrinsics that didn't model rounding - mode yet. */ + /* The RVV floating-point only support dynamic rounding mode in the + FRM register. */ if (opno != insn_data[icode].n_generator_args) - add_input_operand (Pmode, const0_rtx); + add_input_operand (Pmode, gen_int_mode (riscv_vector::FRM_DYN, Pmode)); return generate_insn (icode); } -- 2.34.1