From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from xry111.site (xry111.site [IPv6:2001:470:683e::1]) by sourceware.org (Postfix) with ESMTPS id D47F93858413 for ; Fri, 4 Nov 2022 14:37:38 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org D47F93858413 Authentication-Results: sourceware.org; dmarc=pass (p=reject dis=none) header.from=xry111.site Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=xry111.site DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=xry111.site; s=default; t=1667572656; bh=kYn5uwOTzrBHucTiHoDLwUJYmQws6Ns64Kyn/2HXNVw=; h=From:To:Cc:Subject:Date:From; b=UfZr8M5bWGBeNPcD2A3zrtIW0y0llvlXWxIsAQGnkED26Az+lGaVAGKTiFfLuY9Lt 15HWn/cvKSTB4D7SS9yRIETOLjGZg2my9tmKhwL9ubtnBvhtdW7kZyUyyj3OUF5jhN hgWky1y7bsEXoWEt6e60CDYRmfsqhJGOboBPmRZs= Received: from xry111-x57s1.. (unknown [IPv6:240e:358:11ed:a500:dc73:854d:832e:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (Client did not present a certificate) (Authenticated sender: xry111@xry111.site) by xry111.site (Postfix) with ESMTPSA id 7787766807; Fri, 4 Nov 2022 10:37:33 -0400 (EDT) From: Xi Ruoyao To: gcc-patches@gcc.gnu.org Cc: Lulu Cheng , Wang Xuerui , Chenghua Xu , Xiaolin Tang , Xi Ruoyao Subject: [PATCH] LoongArch: Add fcopysign instructions Date: Fri, 4 Nov 2022 22:37:19 +0800 Message-Id: <20221104143719.1709284-1-xry111@xry111.site> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-6.5 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FROM_SUSPICIOUS_NTLD,FROM_SUSPICIOUS_NTLD_FP,GIT_PATCH_0,KAM_SHORT,LIKELY_SPAM_FROM,PDS_OTHER_BAD_TLD,SPF_HELO_PASS,SPF_PASS,TXREP 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: Add fcopysign.{s,d} with the names copysign{sf,df}3 so GCC will expand __builtin_copysign{f,} to a single instruction. Link: https://sourceware.org/pipermail/libc-alpha/2022-November/143177.html gcc/ChangeLog: * config/loongarch/loongarch.md (UNSPEC_FCOPYSIGN): New unspec. (type): Add fcopysign. (copysign3): New instruction template. gcc/testsuite/ChangeLog: * gcc.target/loongarch/fcopysign.c: New test. --- Bootstrapped and regtested on loongarch64-linux-gnu. Ok for trunk? gcc/config/loongarch/loongarch.md | 22 ++++++++++++++++++- .../gcc.target/loongarch/fcopysign.c | 16 ++++++++++++++ 2 files changed, 37 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.target/loongarch/fcopysign.c diff --git a/gcc/config/loongarch/loongarch.md b/gcc/config/loongarch/loongarch.md index 214b14bddd3..042e6e74491 100644 --- a/gcc/config/loongarch/loongarch.md +++ b/gcc/config/loongarch/loongarch.md @@ -37,6 +37,7 @@ (define_c_enum "unspec" [ UNSPEC_FCLASS UNSPEC_FMAX UNSPEC_FMIN + UNSPEC_FCOPYSIGN ;; Override return address for exception handling. UNSPEC_EH_RETURN @@ -214,6 +215,7 @@ (define_attr "qword_mode" "no,yes" ;; fabs floating point absolute value ;; fneg floating point negation ;; fcmp floating point compare +;; fcopysign floating point copysign ;; fcvt floating point convert ;; fsqrt floating point square root ;; frsqrt floating point reciprocal square root @@ -226,7 +228,7 @@ (define_attr "type" "unknown,branch,jump,call,load,fpload,fpidxload,store,fpstore,fpidxstore, prefetch,prefetchx,condmove,mgtf,mftg,const,arith,logical, shift,slt,signext,clz,trap,imul,idiv,move, - fmove,fadd,fmul,fmadd,fdiv,frdiv,fabs,fneg,fcmp,fcvt,fsqrt, + fmove,fadd,fmul,fmadd,fdiv,frdiv,fabs,fneg,fcmp,fcopysign,fcvt,fsqrt, frsqrt,accext,accmod,multi,atomic,syncloop,nop,ghost" (cond [(eq_attr "jirl" "!unset") (const_string "call") (eq_attr "got" "load") (const_string "load") @@ -976,6 +978,24 @@ (define_insn "abs2" (set_attr "mode" "")]) ;; +;; .................... +;; +;; FLOATING POINT COPYSIGN +;; +;; .................... + +(define_insn "copysign3" + [(set (match_operand:ANYF 0 "register_operand" "=f") + (unspec:ANYF [(match_operand:ANYF 1 "register_operand" "f") + (match_operand:ANYF 2 "register_operand" "f")] + UNSPEC_FCOPYSIGN))] + "" + "fcopysign.\t%0,%1,%2" + [(set_attr "type" "fcopysign") + (set_attr "mode" "")]) + + +;; ;; ................... ;; ;; Count leading zeroes. diff --git a/gcc/testsuite/gcc.target/loongarch/fcopysign.c b/gcc/testsuite/gcc.target/loongarch/fcopysign.c new file mode 100644 index 00000000000..058ba2cf573 --- /dev/null +++ b/gcc/testsuite/gcc.target/loongarch/fcopysign.c @@ -0,0 +1,16 @@ +/* { dg-do compile } */ +/* { dg-options "-mdouble-float" } */ +/* { dg-final { scan-assembler "fcopysign\\.s" } } */ +/* { dg-final { scan-assembler "fcopysign\\.d" } } */ + +double +my_copysign (double a, double b) +{ + return __builtin_copysign (a, b); +} + +float +my_copysignf (float a, float b) +{ + return __builtin_copysignf (a, b); +} -- 2.38.1