From patchwork Tue Oct 31 16:02:46 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joseph Myers X-Patchwork-Id: 24023 Received: (qmail 74466 invoked by alias); 31 Oct 2017 16:03:00 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 74446 invoked by uid 89); 31 Oct 2017 16:02:59 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-24.5 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, SPF_PASS, URIBL_RED autolearn=ham version=3.3.2 spammy=Hx-languages-length:1374 X-HELO: relay1.mentorg.com Date: Tue, 31 Oct 2017 16:02:46 +0000 From: Joseph Myers To: Subject: Adjust __MATH_EVAL_FMT2 definition to handle _Float16 better [committed] Message-ID: User-Agent: Alpine 2.20 (DEB 67 2015-01-07) MIME-Version: 1.0 X-ClientProxiedBy: svr-ies-mbx-01.mgc.mentorg.com (139.181.222.1) To SVR-IES-MBX-03.mgc.mentorg.com (139.181.222.3) Continuing the preparation for additional _FloatN / _FloatNx type support, this patch adds an additional case in the definition of __MATH_EVAL_FMT2, as used in defining iseqsig: when __FLT_EVAL_METHOD__ is 0 or 32, it adds 0.0f to the arguments, so that the correct function would be selected in the case of _Float16 arguments with excess precision (were glibc to support _Float16, which of course __MATH_TG and other facilities do not at present - and _Float16 support is not part of what this patch series is aiming for, but this particular fix is simple so is included anyway). Tested for x86_64. Committed. 2017-10-31 Joseph Myers * math/math.h [__FLT_EVAL_METHOD__ == 0 || __FLT_EVAL_METHOD__ == 32] (__MATH_EVAL_FMT2): Define to add 0.0f. diff --git a/math/math.h b/math/math.h index 125d845..326fd8e 100644 --- a/math/math.h +++ b/math/math.h @@ -1144,6 +1144,8 @@ iszero (__T __val) # define __MATH_EVAL_FMT2(x, y) ((x) + (y) + 0.0L) # elif __FLT_EVAL_METHOD__ == 1 || __FLT_EVAL_METHOD__ > 32 # define __MATH_EVAL_FMT2(x, y) ((x) + (y) + 0.0) +# elif __FLT_EVAL_METHOD__ == 0 || __FLT_EVAL_METHOD__ == 32 +# define __MATH_EVAL_FMT2(x, y) ((x) + (y) + 0.0f) # else # define __MATH_EVAL_FMT2(x, y) ((x) + (y)) # endif