From patchwork Mon Sep 12 08:05:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jakub Jelinek X-Patchwork-Id: 1134 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:5044:0:0:0:0:0 with SMTP id h4csp1775675wrt; Mon, 12 Sep 2022 01:07:19 -0700 (PDT) X-Google-Smtp-Source: AA6agR4facPPoOl0y4E3T5RcsVbxpVs4xBqqjn5jyuN1OXkVOYiNrDOM1mckr+dqtqVamK0GkWeY X-Received: by 2002:a17:907:75cd:b0:779:5bfe:5d92 with SMTP id jl13-20020a17090775cd00b007795bfe5d92mr12300773ejc.23.1662970039385; Mon, 12 Sep 2022 01:07:19 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1662970039; cv=none; d=google.com; s=arc-20160816; b=wS/4Dl1sK8BvWygP/OI2qjAhzT/oYVPHYT//wgWIbdwHp90js3XFS4hr4RTAkgh/5i jT+4YG9Oe+cz1WMY6MJlC8TY1XybNqWnv0tobudeQdFk7T4BIGWjyieNaOZVuOrq9loW zUqB7H8FCiPp5p7g42Pg2/k66FyfI/9C5ZfToBDw5VS8C67ORqBKIMLzuDqCwUbQgf9E rsTIla0LGZ1SslQSoAzXA9uO9z5V3HnoW3mI0zLnXxAeJ/1HeoBTsARUCRFUgBwjH06Y C7GLfO1gXzVYQbyn80yRbyI0YLXFVudOBjgfzbE4W8eH4698bS2eIfec2lKRyFDaU/f1 zm4w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:cc:reply-to:from:list-subscribe:list-help :list-post:list-archive:list-unsubscribe:list-id:precedence :content-disposition:mime-version:message-id:subject:to:date :dmarc-filter:delivered-to:dkim-signature:dkim-filter; bh=pwNdXYVurVPMIfB8aLcxjHuII62bsqZGAcyFdSkorOQ=; b=PceN5mUdtZKjKwlCaCetVzEnOjZ2V0QDageJOnVZFEAVItrCcQCdSdCYEDAjU6dzZK XxRztVePPlBWWTb6KwITHR9LOCEHZX2RbLZcIywJgMgcVwnAue8AbiQc6cD9kH1zMxs6 /QWorAPJNRsFFZmnhdLg2FbAMPteLtlfWPwWA4u2XHi6Jm4ccT89XOM7TDNd0WpI3eU8 UaQGSHXuGueocBX3fWk4F/qeq3R6yny/Xny5e4+P0oDSYfmqlFYPjHy3TOL9G8KYMylA oTuq7LqQQUj+KEfLjPE/BLVrcbgc2Z9Nzso8aFTaNLv0dSZjLm5a3y1x2+rm5JHxXnkm T7/A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=ZJv1rwb2; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from sourceware.org (server2.sourceware.org. [2620:52:3:1:0:246e:9693:128c]) by mx.google.com with ESMTPS id oz14-20020a1709077d8e00b0072f25c0af5dsi7753686ejc.135.2022.09.12.01.07.18 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Sep 2022 01:07:19 -0700 (PDT) Received-SPF: pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) client-ip=2620:52:3:1:0:246e:9693:128c; Authentication-Results: mx.google.com; dkim=pass header.i=@gcc.gnu.org header.s=default header.b=ZJv1rwb2; spf=pass (google.com: domain of gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org designates 2620:52:3:1:0:246e:9693:128c as permitted sender) smtp.mailfrom="gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=gnu.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 9DB8A3857023 for ; Mon, 12 Sep 2022 08:07:17 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9DB8A3857023 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1662970037; bh=pwNdXYVurVPMIfB8aLcxjHuII62bsqZGAcyFdSkorOQ=; h=Date:To:Subject:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:Cc:From; b=ZJv1rwb2Us6JgSW+/C/M60zwFcI3rXtiXppPsRTmNHMq/HejFwPFsKXH7EQ68EC2Y Awv8Nw2YbOHtulaUcupmidd8j3VLzst0tlDJrQjnADjTAREQCBAg/gzR+b4wrG/XNF dkagLgG8g2Sx4L044CfqXqBywkS3RipmFyjNeyCI= X-Original-To: gcc-patches@gcc.gnu.org Delivered-To: gcc-patches@gcc.gnu.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by sourceware.org (Postfix) with ESMTPS id 5968A3857017 for ; Mon, 12 Sep 2022 08:06:09 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 5968A3857017 Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-137-c07robuZPimlWmVfsUgw7w-1; Mon, 12 Sep 2022 04:05:56 -0400 X-MC-Unique: c07robuZPimlWmVfsUgw7w-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A42C13C0F364; Mon, 12 Sep 2022 08:05:55 +0000 (UTC) Received: from tucnak.zalov.cz (unknown [10.39.192.41]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E4B0A1121315; Mon, 12 Sep 2022 08:05:54 +0000 (UTC) Received: from tucnak.zalov.cz (localhost [127.0.0.1]) by tucnak.zalov.cz (8.17.1/8.17.1) with ESMTPS id 28C85prm166001 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Mon, 12 Sep 2022 10:05:52 +0200 Received: (from jakub@localhost) by tucnak.zalov.cz (8.17.1/8.17.1/Submit) id 28C85oF8166000; Mon, 12 Sep 2022 10:05:50 +0200 Date: Mon, 12 Sep 2022 10:05:50 +0200 To: Jason Merrill , Jonathan Wakely , "Joseph S. Myers" , Bruce Korb Subject: [PATCH] c++: Implement P1467R9 - Extended floating-point types and standard names compiler part except for bfloat16 [PR106652] Message-ID: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline X-Spam-Status: No, score=-4.5 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW, 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 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: Jakub Jelinek via Gcc-patches From: Jakub Jelinek Reply-To: Jakub Jelinek Cc: gcc-patches@gcc.gnu.org Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org Sender: "Gcc-patches" X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1743750472014641441?= X-GMAIL-MSGID: =?utf-8?q?1743750472014641441?= Hi! The following patch implements the compiler part of C++23 P1467R9 - Extended floating-point types and standard names compiler part by introducing _Float{16,32,64,128} as keywords and builtin types like they are implemented for C already since GCC 7. It doesn't introduce _Float{32,64,128}x for C++, those remain C only for now, mainly because https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling has mangling for: ::= DF _ # ISO/IEC TS 18661 binary floating point type _FloatN (N bits) but doesn't for _FloatNx. And it doesn't add anything for bfloat16_t support, see below. Regarding mangling, I think mangling _FloatNx as DF x _ would be possible, but would need to be discussed and voted in. As there is no _FloatNx support for C++, I think it is wrong to announce it through __FLT{32,64,128}X_*__ predefined macros (so the patch disables those for C++; unfortunately g++ 7 to 12 will predefine those and also __FLT{32,64,128}_*__ even when _FloatN support isn't implemented). The patch wants to keep backwards compatibility with how __float128 has been handled in C++ before, both for mangling and behavior in binary operations, overload resolution etc. So, there are some backend changes where for C __float128 and _Float128 are the same type (float128_type_node and float128t_type_node are the same pointer), but for C++ they are distinct types which mangle differently and _Float128 is treated as extended floating-point type while __float128 is treated as non-standard floating point type. The various C++23 changes about how floating-point types are changed are actually implemented as written in the spec only if at least one of the types involved is _Float{16,32,64,128} and kept previous behavior otherwise. For float/double/long double the rules are actually written that they behave the same as before. There is some backwards incompatibility at least on x86 regarding _Float16, because that type was already used by that name and with the DF16_ mangling (but only since GCC 12 and I think it isn't that widely used in the wild yet). E.g. config/i386/avx512fp16intrin.h shows the issues, where in C or in GCC 12 in C++ one could pass 0.0f to a builtin taking _Float16 argument, but with the changes that is not possible anymore, one needs to either use 0.0f16 or (_Float16) 0.0f. We have also a problem with glibc headers, where since glibc 2.27 math.h and complex.h aren't compilable with these changes. One gets errors like: In file included from /usr/include/math.h:43, from abc.c:1: /usr/include/bits/floatn.h:86:9: error: multiple types in one declaration 86 | typedef __float128 _Float128; | ^~~~~~~~~~ /usr/include/bits/floatn.h:86:20: error: declaration does not declare anything [-fpermissive] 86 | typedef __float128 _Float128; | ^~~~~~~~~ In file included from /usr/include/bits/floatn.h:119: /usr/include/bits/floatn-common.h:214:9: error: multiple types in one declaration 214 | typedef float _Float32; | ^~~~~ /usr/include/bits/floatn-common.h:214:15: error: declaration does not declare anything [-fpermissive] 214 | typedef float _Float32; | ^~~~~~~~ /usr/include/bits/floatn-common.h:251:9: error: multiple types in one declaration 251 | typedef double _Float64; | ^~~~~~ /usr/include/bits/floatn-common.h:251:16: error: declaration does not declare anything [-fpermissive] 251 | typedef double _Float64; | ^~~~~~~~ This is from snippets like: /* The remaining of this file provides support for older compilers. */ # if __HAVE_FLOAT128 /* The type _Float128 exists only since GCC 7.0. */ # if !__GNUC_PREREQ (7, 0) || defined __cplusplus typedef __float128 _Float128; # endif where it hardcodes that C++ doesn't have _Float{16,32,64,128} support nor {f,F}{16,32,64,128} literal suffixes nor _Complex _Float{16,32,64,128}. The patch fixincludes this for now and hopefully if this is committed, then glibc can change those. Right now the patch changes those # if !__GNUC_PREREQ (7, 0) || defined __cplusplus conditions to # if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__) where it relies on __FLT32X_*__ macros no longer being predefined for C++. Now, I guess for the fixincludes it could also use # if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 0)) where earlier GCC 13 snapshots would not be doing the fixincludes, but the question is what to use for upstream glibc, because there will be 13.0 snapshots where C++ doesn't support _Float{16,32,64,128} and where it is essential to use what glibc has been doing previously and using the #else would fail miserably, and then 13.0 snapshots where it does support it and where using the if would fail miserably. One option is to use # if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 1)) in glibc and rely on fixincludes for 13.0 snapshots (or of course later when using 13.1+ with older glibc). Another thing is mangling, as said above, Itanium C++ ABI specifies DF _ as _Float{16,32,64,128} mangling, but GCC was implementing a mangling incompatible with that starting with DF for fixed point types. Fixed point was never supported in C++ though, I believe the reason why the mangling has been added was that due to a bug it would leak into the C++ FE through decltype (0.0r) etc. But that has been shortly after the mangling was added fixed (I think in the same GCC release cycle), so we now reject 0.0r etc. in C++. If we ever need the fixed point mangling, I think it can be readded but better with a different prefix so that it doesn't conflict with the published standard manglings. So, this patch also kills the fixed point mangling and implements the DF _ demangling. The patch predefines __STDCPP_FLOAT{16,32,64,128}_T__ macros when those types are available, but only for C++23, while the underlying types are available in C++98 and later including the {f,F}{16,32,64,128} literal suffixes (but those with a pedwarn for C++20 and earlier). My understanding is that it needs to be predefined by the compiler, on the other side predefining even for older modes when is a new C++23 header would be weird. One can find out if _Float{16,32,64,128} is supported in C++ by defined(__FLT{16,32,64,128}_MANT_DIG__) && !defined(__FLT32X_MANT_DIG__) (unfortunately not just the former because GCC 7-12 predefined those too) or perhaps __GNUC__ >= 13 && defined(__FLT{16,32,64,128}_MANT_DIG__) (but that doesn't work well with older G++ 13 snapshots). As for std::bfloat16_t, three targets (aarch64, arm and x86) apparently "support" __bf16 type which has the bfloat16 format, but isn't really usable, e.g. {aarch64,arm,ix86}_invalid_conversion disallow any conversions from or to type with BFmode, {aarch64,arm,ix86}_invalid_unary_op disallows any unary operations on those except for ADDR_EXPR and {aarch64,arm,ix86}_invalid_binary_op disallows any binary operation on those. So, I think we satisfy: "If the implementation supports an extended floating-point type with the properties, as specified by ISO/IEC/IEEE 60559, of radix (b) of 2, storage width in bits (k) of 16, precision in bits (p) of 8, maximum exponent (emax) of 127, and exponent field width in bits (w) of 8, then the typedef-name std::bfloat16_t is defined in the header and names such a type, the macro __STDCPP_BFLOAT16_T__ is defined, and the floating-point literal suffixes bf16 and BF16 are supported." because we don't really support those right now. The question is (mainly for aarch64, arm and x86 backend maintainers) if we shouldn't support it, in the PR there is a partial patch to do so, but the big question is if it should be supported as the __bf16 type those 3 targets use with u6__bf16 mangling and remove those *_invalid_* cases and add conversions to/from at least SFmode but probably also DFmode, TFmode and XFmode on x86 and implement arithmetics on those through conversion to SFmode, performing arithmetics there and conversion back. Conversion from BFmode to SFmode is easy, left shift by 16 and ought to be implemented inline, SFmode -> BFmode conversion is harder, I think it is roughly: __bf16 __truncsfbf2 (_Float32 x) { unsigned int y; memcpy (&y, &x, sizeof (y)); unsigned int z = x & 0x7fffffff; unsigned short r; __bf16 ret; if (z < 0x800000) // Zero or denormal, flush to zero. r = (x & 0x80000000) >> 16; else if (z < 0x7f800000) // Normal, round to nearest. r = (x + 0x7fff + ((x >> 16) & 1)) >> 16; else if (z == 0x7f800000) // Inf. r = x >> 16; else // NaN. r = (x >> 16) | (1 << 6); memcpy (&ret, &r, sizeof (r)); return ret; } (untested) and the question is if it should be implemented in libgcc (and using soft-fp or not), or inline, or both depending on -Os. Or there is the possibility to keep __bf16 a lame type one can't convert to/from or perform most unary and all binary ops on it, and add for C++ a new type (say __bfloat16_t or whatever else), agree on mangling in Itanium ABI and implement full support just for that type. Bootstrapped/regtested on x86_64-linux and i686-linux and additionally tested on some of the testcases on crosses to powerpc64le-linux (various cases including -mabi=ieeelongdouble and -mabi=ibmlongdouble), aarch64-linux and s390x-linux. Ok for trunk? 2022-09-12 Jakub Jelinek PR c++/106652 gcc/ * tree-core.h (enum tree_index): Add TI_FLOAT128T_TYPE enumerator. * tree.h (float128t_type_node): Define. * tree.cc (build_common_tree_nodes): Initialize float128t_type_node. * builtins.def (DEF_FLOATN_BUILTIN): Adjust comment now that _Float is supported in C++ too. * config/i386/i386.cc (ix86_mangle_type): Only mangle as "g" float128t_type_node. * config/i386/i386-builtins.cc (ix86_init_builtin_types): Use float128t_type_node for __float128 instead of float128_type_node and create it if NULL. * config/i386/avx512fp16intrin.h (_mm_setzero_ph, _mm256_setzero_ph, _mm512_setzero_ph, _mm_set_sh, _mm_load_sh): Use 0.0f16 instead of 0.0f. * config/ia64/ia64.cc (ia64_init_builtins): Use float128t_type_node for __float128 instead of float128_type_node and create it if NULL. * config/rs6000/rs6000-c.cc (is_float128_p): Also return true for float128t_type_node if non-NULL. * config/rs6000/rs6000.cc (rs6000_mangle_type): Don't mangle float128_type_node as "u9__ieee128". * config/rs6000/rs6000-builtin.cc (rs6000_init_builtins): Use float128t_type_node for __float128 instead of float128_type_node and create it if NULL. gcc/c-family/ * c-common.cc (c_common_reswords): Change _Float{16,32,64,128} flags from D_CONLY to 0. (shorten_binary_op): Punt if common_type returns error_mark_node. (shorten_compare): Likewise. (c_common_nodes_and_builtins): For C++ record _Float{16,32,64,128} builtin types if available but not _Float{32,64,128}x. For C++ clear float128t_type_node. * c-cppbuiltin.cc (c_cpp_builtins): For C++ don't predefine __FLT{32,64,128}X_*__ macros, on the other side predefine __STDCPP_FLOAT{16,32,64,128}_T__ for C++23 if supported. * c-common.h (CASE_RID_FLOATN): Define. (CASE_RID_FLOATN_NX): Use it. * c-lex.cc (interpret_float): For q/Q suffixes prefer float128t_type_node over float128_type_node. Allow {f,F}{16,32,64,128} suffixes for C++ if supported with pedwarn for C++20 and older. Don't call excess_precision_type for C++. gcc/cp/ * cp-tree.h (cp_compare_floating_point_conversion_ranks): Implement P1467R9 - Extended floating-point types and standard names except for std::bfloat16_t for now. Declare. (extended_float_type_p): New inline function. * mangle.cc (write_builtin_type): Mangle float{16,32,64,128}_type_node as DF{16,32,64,128}_. Remove FIXED_POINT_TYPE mangling that conflicts with that. * typeck2.cc (check_narrowing): If one of ftype or type is extended floating-point type, compare floating-point conversion ranks. * parser.cc (cp_keyword_starts_decl_specifier_p): Handle CASE_RID_FLOATN. (cp_parser_simple_type_specifier): Likewise and diagnose missing _Float support if not supported by target. * typeck.cc (cp_compare_floating_point_conversion_ranks): New function. (cp_common_type): If both types are REAL_TYPE and one or both are extended floating-point types, select common type based on comparison of floating-point conversion ranks and subranks. (cp_build_binary_op): Diagnose operation with floating point arguments with unordered conversion ranks. * call.cc (standard_conversion): For floating-point conversion, if either from or to are extended floating-point types reject implicit conversion from larger to smaller conversion rank or with unordered conversion ranks. (build_conditional_expr): Diagnose operation with floating point arguments with unordered conversion ranks. (convert_arg_to_ellipsis): Don't promote extended floating-point types narrower than double to double. (compare_ics): Implement P1467R9 [over.ics.rank]/4 changes. gcc/testsuite/ * g++.dg/cpp23/ext-floating1.C: New test. * g++.dg/cpp23/ext-floating2.C: New test. * g++.dg/cpp23/ext-floating3.C: New test. * g++.dg/cpp23/ext-floating4.C: New test. * g++.dg/cpp23/ext-floating5.C: New test. * g++.dg/cpp23/ext-floating6.C: New test. * g++.dg/cpp23/ext-floating7.C: New test. * g++.dg/cpp23/ext-floating8.C: New test. * g++.dg/cpp23/ext-floating9.C: New test. * g++.dg/cpp23/ext-floating10.C: New test. * g++.dg/cpp23/ext-floating.h: New file. * g++.target/i386/float16-1.C: Adjust expected diagnostics. libcpp/ * expr.cc (interpret_float_suffix): Allow {f,F}{16,32,64,128} suffixes for C++, but not {f,F}{32,64,128}x. include/ * demangle.h (enum demangle_component_type): Add DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE. (struct demangle_component): Add u.s_extended_builtin member. libiberty/ * cp-demangle.c (d_dump): Handle DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE. Don't handle DEMANGLE_COMPONENT_FIXED_TYPE. (d_make_extended_builtin_type): New function. (cplus_demangle_builtin_types): Add _Float entry. (cplus_demangle_type): For DF demangle it as _Float rather than fixed point which conflicts with it. (d_count_templates_scopes): Handle DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE. Just break; for DEMANGLE_COMPONENT_FIXED_TYPE. (d_find_pack): Handle DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE. Don't handle DEMANGLE_COMPONENT_FIXED_TYPE. (d_print_comp_inner): Likewise. * cp-demangle.h (D_BUILTIN_TYPE_COUNT): Bump. * testsuite/demangle-expected: Replace _Z3xxxDFyuVb test with _Z3xxxDF16_DF32_DF64_DF128_CDF16_Vb. fixincludes/ * inclhack.def (glibc_cxx_floatn_1, glibc_cxx_floatn_2, glibc_cxx_floatn_3): New fixes. * tests/base/bits/floatn.h: New file. * fixincl.x: Regenerated. Jakub --- gcc/tree-core.h.jj 2022-09-09 12:27:23.180736449 +0200 +++ gcc/tree-core.h 2022-09-09 18:46:07.257922609 +0200 @@ -690,6 +690,10 @@ enum tree_index { - TI_FLOATN_NX_TYPE_FIRST \ + 1) + /* Type used by certain backends for __float128, which in C++ should be + distinct type from _Float128 for backwards compatibility reasons. */ + TI_FLOAT128T_TYPE, + /* Put the complex types after their component types, so that in (sequential) tree streaming we can assert that their component types have already been handled (see tree-streamer.cc:record_common_node). */ --- gcc/tree.h.jj 2022-09-09 12:27:23.183736409 +0200 +++ gcc/tree.h 2022-09-09 18:46:07.258922596 +0200 @@ -4302,6 +4302,10 @@ tree_strip_any_location_wrapper (tree ex #define float64x_type_node global_trees[TI_FLOAT64X_TYPE] #define float128x_type_node global_trees[TI_FLOAT128X_TYPE] +/* Type used by certain backends for __float128, which in C++ should be + distinct type from _Float128 for backwards compatibility reasons. */ +#define float128t_type_node global_trees[TI_FLOAT128T_TYPE] + #define float_ptr_type_node global_trees[TI_FLOAT_PTR_TYPE] #define double_ptr_type_node global_trees[TI_DOUBLE_PTR_TYPE] #define long_double_ptr_type_node global_trees[TI_LONG_DOUBLE_PTR_TYPE] --- gcc/tree.cc.jj 2022-09-09 18:44:27.153255900 +0200 +++ gcc/tree.cc 2022-09-09 18:46:07.260922569 +0200 @@ -9459,6 +9459,7 @@ build_common_tree_nodes (bool signed_cha layout_type (FLOATN_NX_TYPE_NODE (i)); SET_TYPE_MODE (FLOATN_NX_TYPE_NODE (i), mode); } + float128t_type_node = float128_type_node; float_ptr_type_node = build_pointer_type (float_type_node); double_ptr_type_node = build_pointer_type (double_type_node); --- gcc/builtins.def.jj 2022-09-09 12:27:23.136737041 +0200 +++ gcc/builtins.def 2022-09-09 18:46:07.261922555 +0200 @@ -115,8 +115,8 @@ along with GCC; see the file COPYING3. we are compiling for the C language with GNU extensions, we enable the name without the __builtin_ prefix as well as the name with the __builtin_ prefix. C++ does not enable these names by default because they don't have - the _Float and _FloatX keywords, and a class based library should use - the __builtin_ names. */ + the _Floatx keywords, and a class based library should use the __builtin_ + names. */ #undef DEF_FLOATN_BUILTIN #define DEF_FLOATN_BUILTIN(ENUM, NAME, TYPE, ATTRS) \ DEF_BUILTIN (ENUM, "__builtin_" NAME, BUILT_IN_NORMAL, TYPE, TYPE, \ --- gcc/config/i386/i386.cc.jj 2022-09-09 12:27:23.141736974 +0200 +++ gcc/config/i386/i386.cc 2022-09-10 11:21:26.997205883 +0200 @@ -22711,7 +22711,10 @@ ix86_mangle_type (const_tree type) return "DF16_"; case E_TFmode: /* __float128 is "g". */ - return "g"; + if (type == float128t_type_node) + return "g"; + /* _Float128 should mangle as "DF128_" done in generic code. */ + return NULL; case E_XFmode: /* "long double" or __float80 is "e". */ return "e"; --- gcc/config/i386/i386-builtins.cc.jj 2022-09-09 12:27:23.138737014 +0200 +++ gcc/config/i386/i386-builtins.cc 2022-09-09 18:46:07.264922515 +0200 @@ -1409,9 +1409,18 @@ ix86_init_builtin_types (void) lang_hooks.types.register_builtin_type (float80_type_node, "__float80"); /* The __float128 type. The node has already been created as - _Float128, so we only need to register the __float128 name for - it. */ - lang_hooks.types.register_builtin_type (float128_type_node, "__float128"); + _Float128, so for C we only need to register the __float128 name for + it. For C++, we create a distinct type which will mangle differently + (g) vs. _Float128 (DF128_) and behave backwards compatibly. */ + if (float128t_type_node == NULL_TREE) + { + float128t_type_node = make_node (REAL_TYPE); + TYPE_PRECISION (float128t_type_node) + = TYPE_PRECISION (float128_type_node); + SET_TYPE_MODE (float128t_type_node, TYPE_MODE (float128_type_node)); + layout_type (float128t_type_node); + } + lang_hooks.types.register_builtin_type (float128t_type_node, "__float128"); ix86_register_float16_builtin_type (); --- gcc/config/i386/avx512fp16intrin.h.jj 2022-01-11 22:31:40.696768297 +0100 +++ gcc/config/i386/avx512fp16intrin.h 2022-09-11 23:23:28.617437158 +0200 @@ -183,21 +183,21 @@ extern __inline __m128h __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) _mm_setzero_ph (void) { - return _mm_set1_ph (0.0f); + return _mm_set1_ph (0.0f16); } extern __inline __m256h __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) _mm256_setzero_ph (void) { - return _mm256_set1_ph (0.0f); + return _mm256_set1_ph (0.0f16); } extern __inline __m512h __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) _mm512_setzero_ph (void) { - return _mm512_set1_ph (0.0f); + return _mm512_set1_ph (0.0f16); } extern __inline __m128h @@ -358,7 +358,8 @@ extern __inline __m128h __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) _mm_set_sh (_Float16 __F) { - return _mm_set_ph (0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, __F); + return _mm_set_ph (0.0f16, 0.0f16, 0.0f16, 0.0f16, 0.0f16, 0.0f16, 0.0f16, + __F); } /* Create a vector with element 0 as *P and the rest zero. */ @@ -366,7 +367,7 @@ extern __inline __m128h __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) _mm_load_sh (void const *__P) { - return _mm_set_ph (0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, + return _mm_set_ph (0.0f16, 0.0f16, 0.0f16, 0.0f16, 0.0f16, 0.0f16, 0.0f16, *(_Float16 const *) __P); } --- gcc/config/ia64/ia64.cc.jj 2022-09-09 12:27:23.143736947 +0200 +++ gcc/config/ia64/ia64.cc 2022-09-09 18:46:07.265922502 +0200 @@ -10466,11 +10466,19 @@ ia64_init_builtins (void) = build_pointer_type (build_qualified_type (char_type_node, TYPE_QUAL_CONST)); - (*lang_hooks.types.register_builtin_type) (float128_type_node, + if (float128t_type_node == NULL_TREE) + { + float128t_type_node = make_node (REAL_TYPE); + TYPE_PRECISION (float128t_type_node) + = TYPE_PRECISION (float128_type_node); + layout_type (float128t_type_node); + SET_TYPE_MODE (float128t_type_node, TYPE_MODE (float128_type_node)); + } + (*lang_hooks.types.register_builtin_type) (float128t_type_node, "__float128"); /* TFmode support builtins. */ - ftype = build_function_type_list (float128_type_node, NULL_TREE); + ftype = build_function_type_list (float128t_type_node, NULL_TREE); decl = add_builtin_function ("__builtin_infq", ftype, IA64_BUILTIN_INFQ, BUILT_IN_MD, NULL, NULL_TREE); @@ -10481,7 +10489,7 @@ ia64_init_builtins (void) NULL, NULL_TREE); ia64_builtins[IA64_BUILTIN_HUGE_VALQ] = decl; - ftype = build_function_type_list (float128_type_node, + ftype = build_function_type_list (float128t_type_node, const_string_type, NULL_TREE); decl = add_builtin_function ("__builtin_nanq", ftype, @@ -10496,8 +10504,8 @@ ia64_init_builtins (void) TREE_READONLY (decl) = 1; ia64_builtins[IA64_BUILTIN_NANSQ] = decl; - ftype = build_function_type_list (float128_type_node, - float128_type_node, + ftype = build_function_type_list (float128t_type_node, + float128t_type_node, NULL_TREE); decl = add_builtin_function ("__builtin_fabsq", ftype, IA64_BUILTIN_FABSQ, BUILT_IN_MD, @@ -10505,9 +10513,9 @@ ia64_init_builtins (void) TREE_READONLY (decl) = 1; ia64_builtins[IA64_BUILTIN_FABSQ] = decl; - ftype = build_function_type_list (float128_type_node, - float128_type_node, - float128_type_node, + ftype = build_function_type_list (float128t_type_node, + float128t_type_node, + float128t_type_node, NULL_TREE); decl = add_builtin_function ("__builtin_copysignq", ftype, IA64_BUILTIN_COPYSIGNQ, BUILT_IN_MD, --- gcc/config/rs6000/rs6000-c.cc.jj 2022-09-09 12:27:23.144736933 +0200 +++ gcc/config/rs6000/rs6000-c.cc 2022-09-10 11:21:53.958838545 +0200 @@ -808,6 +808,7 @@ static inline bool is_float128_p (tree t) { return (t == float128_type_node + || (t && t == float128t_type_node) || (TARGET_IEEEQUAD && TARGET_LONG_DOUBLE_128 && t == long_double_type_node)); --- gcc/config/rs6000/rs6000.cc.jj 2022-09-09 12:27:23.147736893 +0200 +++ gcc/config/rs6000/rs6000.cc 2022-09-09 18:46:07.269922448 +0200 @@ -20118,7 +20118,11 @@ rs6000_mangle_type (const_tree type) if (SCALAR_FLOAT_TYPE_P (type) && FLOAT128_IBM_P (TYPE_MODE (type))) return "g"; - if (SCALAR_FLOAT_TYPE_P (type) && FLOAT128_IEEE_P (TYPE_MODE (type))) + if (SCALAR_FLOAT_TYPE_P (type) + && FLOAT128_IEEE_P (TYPE_MODE (type)) + /* _Float128 should mangle as DF128_ (done in generic code) + rather than u9__ieee128 (used for __ieee128 and __float128). */ + && type != float128_type_node) return "u9__ieee128"; if (type == vector_pair_type_node) --- gcc/config/rs6000/rs6000-builtin.cc.jj 2022-09-09 12:27:23.143736947 +0200 +++ gcc/config/rs6000/rs6000-builtin.cc 2022-09-09 18:46:07.270922435 +0200 @@ -733,7 +733,22 @@ rs6000_init_builtins (void) if (TARGET_IEEEQUAD && TARGET_LONG_DOUBLE_128) ieee128_float_type_node = long_double_type_node; else - ieee128_float_type_node = float128_type_node; + { + /* For C we only need to register the __ieee128 name for + it. For C++, we create a distinct type which will mangle + differently (u9__ieee128) vs. _Float128 (DF128_) and behave + backwards compatibly. */ + if (float128t_type_node == NULL_TREE) + { + float128t_type_node = make_node (REAL_TYPE); + TYPE_PRECISION (float128t_type_node) + = TYPE_PRECISION (float128_type_node); + layout_type (float128t_type_node); + SET_TYPE_MODE (float128t_type_node, + TYPE_MODE (float128_type_node)); + } + ieee128_float_type_node = float128t_type_node; + } t = build_qualified_type (ieee128_float_type_node, TYPE_QUAL_CONST); lang_hooks.types.register_builtin_type (ieee128_float_type_node, "__ieee128"); --- gcc/c-family/c-common.cc.jj 2022-09-09 12:27:23.137737028 +0200 +++ gcc/c-family/c-common.cc 2022-09-09 19:43:50.730802597 +0200 @@ -352,10 +352,10 @@ const struct c_common_resword c_common_r { "_Bool", RID_BOOL, D_CONLY }, { "_Complex", RID_COMPLEX, 0 }, { "_Imaginary", RID_IMAGINARY, D_CONLY }, - { "_Float16", RID_FLOAT16, D_CONLY }, - { "_Float32", RID_FLOAT32, D_CONLY }, - { "_Float64", RID_FLOAT64, D_CONLY }, - { "_Float128", RID_FLOAT128, D_CONLY }, + { "_Float16", RID_FLOAT16, 0 }, + { "_Float32", RID_FLOAT32, 0 }, + { "_Float64", RID_FLOAT64, 0 }, + { "_Float128", RID_FLOAT128, 0 }, { "_Float32x", RID_FLOAT32X, D_CONLY }, { "_Float64x", RID_FLOAT64X, D_CONLY }, { "_Float128x", RID_FLOAT128X, D_CONLY }, @@ -1429,8 +1429,11 @@ shorten_binary_op (tree result_type, tre == TYPE_PRECISION (TREE_TYPE (arg0))) && unsigned0 == unsigned1 && (unsigned0 || !uns)) - return c_common_signed_or_unsigned_type - (unsigned0, common_type (TREE_TYPE (arg0), TREE_TYPE (arg1))); + { + tree ctype = common_type (TREE_TYPE (arg0), TREE_TYPE (arg1)); + if (ctype != error_mark_node) + return c_common_signed_or_unsigned_type (unsigned0, ctype); + } else if (TREE_CODE (arg0) == INTEGER_CST && (unsigned1 || !uns) @@ -3202,9 +3205,10 @@ shorten_compare (location_t loc, tree *o else if (unsignedp0 == unsignedp1 && real1 == real2 && TYPE_PRECISION (TREE_TYPE (primop0)) < TYPE_PRECISION (*restype_ptr) - && TYPE_PRECISION (TREE_TYPE (primop1)) < TYPE_PRECISION (*restype_ptr)) + && TYPE_PRECISION (TREE_TYPE (primop1)) < TYPE_PRECISION (*restype_ptr) + && (type = common_type (TREE_TYPE (primop0), TREE_TYPE (primop1))) + != error_mark_node) { - type = common_type (TREE_TYPE (primop0), TREE_TYPE (primop1)); type = c_common_signed_or_unsigned_type (unsignedp0 || TYPE_UNSIGNED (*restype_ptr), type); @@ -4378,11 +4382,21 @@ c_common_nodes_and_builtins (void) record_builtin_type (RID_DOUBLE, NULL, double_type_node); record_builtin_type (RID_MAX, "long double", long_double_type_node); - if (!c_dialect_cxx ()) - for (i = 0; i < NUM_FLOATN_NX_TYPES; i++) + for (i = 0; i < NUM_FLOATN_NX_TYPES; i++) + { if (FLOATN_NX_TYPE_NODE (i) != NULL_TREE) record_builtin_type ((enum rid) (RID_FLOATN_NX_FIRST + i), NULL, FLOATN_NX_TYPE_NODE (i)); + /* Don't register _FloatNX types for C++, just _FloatN. */ + if (i == NUM_FLOATN_TYPES && c_dialect_cxx ()) + break; + } + + /* For C, let float128t_type_node (__float128 in some backends) be the + same type as float128_type_node (_Float128), for C++ let those + be distinct types that mangle and behave differently. */ + if (c_dialect_cxx ()) + float128t_type_node = NULL_TREE; /* Only supported decimal floating point extension if the target actually supports underlying modes. */ --- gcc/c-family/c-cppbuiltin.cc.jj 2022-09-09 12:27:23.138737014 +0200 +++ gcc/c-family/c-cppbuiltin.cc 2022-09-09 18:46:07.271922421 +0200 @@ -1246,6 +1246,14 @@ c_cpp_builtins (cpp_reader *pfile) { if (FLOATN_NX_TYPE_NODE (i) == NULL_TREE) continue; + if (floatn_nx_types[i].extended && c_dialect_cxx ()) + continue; + if (c_dialect_cxx () && cxx_dialect > cxx20) + { + char name[sizeof ("__STDCPP_FLOAT128_T__=1")]; + sprintf (name, "__STDCPP_FLOAT%d_T__=1", floatn_nx_types[i].n); + cpp_define (pfile, name); + } char prefix[20], csuffix[20]; sprintf (prefix, "FLT%d%s", floatn_nx_types[i].n, floatn_nx_types[i].extended ? "X" : ""); --- gcc/c-family/c-common.h.jj 2022-09-09 12:27:23.137737028 +0200 +++ gcc/c-family/c-common.h 2022-09-09 18:46:07.271922421 +0200 @@ -120,8 +120,10 @@ enum rid RID_FLOAT32X, RID_FLOAT64X, RID_FLOAT128X, +#define CASE_RID_FLOATN \ + case RID_FLOAT16: case RID_FLOAT32: case RID_FLOAT64: case RID_FLOAT128 #define CASE_RID_FLOATN_NX \ - case RID_FLOAT16: case RID_FLOAT32: case RID_FLOAT64: case RID_FLOAT128: \ + CASE_RID_FLOATN: \ case RID_FLOAT32X: case RID_FLOAT64X: case RID_FLOAT128X RID_FRACT, RID_ACCUM, RID_AUTO_TYPE, RID_BUILTIN_CALL_WITH_STATIC_CHAIN, --- gcc/c-family/c-lex.cc.jj 2022-09-09 12:27:23.138737014 +0200 +++ gcc/c-family/c-lex.cc 2022-09-09 18:46:07.271922421 +0200 @@ -960,6 +960,10 @@ interpret_float (const cpp_token *token, pedwarn (input_location, OPT_Wpedantic, "non-standard suffix on floating constant"); type = c_common_type_for_mode (mode, 0); + /* For Q suffix, prefer float128t_type_node (__float128) type + over float128_type_node (_Float128) type if they are distinct. */ + if (type == float128_type_node && float128t_type_node) + type = float128t_type_node; gcc_assert (type); } else if ((flags & (CPP_N_FLOATN | CPP_N_FLOATNX)) != 0) @@ -979,8 +983,17 @@ interpret_float (const cpp_token *token, error ("unsupported non-standard suffix on floating constant"); return error_mark_node; } + else if (c_dialect_cxx ()) + { + if (cxx_dialect < cxx23) + pedwarn (input_location, OPT_Wpedantic, + "% or % suffix on floating constant only " + "available with %<-std=c++2b%> or %<-std=gnu++2b%>", + n, n); + } else - pedwarn (input_location, OPT_Wpedantic, "non-standard suffix on floating constant"); + pedwarn (input_location, OPT_Wpedantic, + "non-standard suffix on floating constant"); } else if ((flags & CPP_N_WIDTH) == CPP_N_LARGE) type = long_double_type_node; @@ -990,7 +1003,10 @@ interpret_float (const cpp_token *token, else type = double_type_node; - const_type = excess_precision_type (type); + if (c_dialect_cxx ()) + const_type = NULL_TREE; + else + const_type = excess_precision_type (type); if (!const_type) const_type = type; --- gcc/cp/cp-tree.h.jj 2022-09-09 12:27:23.170736583 +0200 +++ gcc/cp/cp-tree.h 2022-09-10 11:22:11.612598030 +0200 @@ -7942,6 +7942,7 @@ extern tree require_complete_type_sfinae extern tree complete_type (tree); extern tree complete_type_or_else (tree, tree); extern tree complete_type_or_maybe_complain (tree, tree, tsubst_flags_t); +extern int cp_compare_floating_point_conversion_ranks (tree, tree); inline bool type_unknown_p (const_tree); enum { ce_derived, ce_type, ce_normal, ce_exact }; extern bool comp_except_specs (const_tree, const_tree, int); @@ -8682,6 +8683,18 @@ struct push_access_scope_guard } }; +/* True if TYPE is an extended floating-point type. */ + +inline bool +extended_float_type_p (tree type) +{ + type = TYPE_MAIN_VARIANT (type); + for (int i = 0; i < NUM_FLOATN_TYPES; ++i) + if (type == FLOATN_TYPE_NODE (i)) + return true; + return false; +} + #if CHECKING_P namespace selftest { extern void run_cp_tests (void); --- gcc/cp/mangle.cc.jj 2022-09-09 12:27:23.171736570 +0200 +++ gcc/cp/mangle.cc 2022-09-09 18:46:07.273922394 +0200 @@ -2648,63 +2648,18 @@ write_builtin_type (tree type) write_string ("Dd"); else if (type == dfloat128_type_node || type == fallback_dfloat128_type) write_string ("De"); + else if (type == float16_type_node) + write_string ("DF16_"); + else if (type == float32_type_node) + write_string ("DF32_"); + else if (type == float64_type_node) + write_string ("DF64_"); + else if (type == float128_type_node) + write_string ("DF128_"); else gcc_unreachable (); break; - case FIXED_POINT_TYPE: - write_string ("DF"); - if (GET_MODE_IBIT (TYPE_MODE (type)) > 0) - write_unsigned_number (GET_MODE_IBIT (TYPE_MODE (type))); - if (type == fract_type_node - || type == sat_fract_type_node - || type == accum_type_node - || type == sat_accum_type_node) - write_char ('i'); - else if (type == unsigned_fract_type_node - || type == sat_unsigned_fract_type_node - || type == unsigned_accum_type_node - || type == sat_unsigned_accum_type_node) - write_char ('j'); - else if (type == short_fract_type_node - || type == sat_short_fract_type_node - || type == short_accum_type_node - || type == sat_short_accum_type_node) - write_char ('s'); - else if (type == unsigned_short_fract_type_node - || type == sat_unsigned_short_fract_type_node - || type == unsigned_short_accum_type_node - || type == sat_unsigned_short_accum_type_node) - write_char ('t'); - else if (type == long_fract_type_node - || type == sat_long_fract_type_node - || type == long_accum_type_node - || type == sat_long_accum_type_node) - write_char ('l'); - else if (type == unsigned_long_fract_type_node - || type == sat_unsigned_long_fract_type_node - || type == unsigned_long_accum_type_node - || type == sat_unsigned_long_accum_type_node) - write_char ('m'); - else if (type == long_long_fract_type_node - || type == sat_long_long_fract_type_node - || type == long_long_accum_type_node - || type == sat_long_long_accum_type_node) - write_char ('x'); - else if (type == unsigned_long_long_fract_type_node - || type == sat_unsigned_long_long_fract_type_node - || type == unsigned_long_long_accum_type_node - || type == sat_unsigned_long_long_accum_type_node) - write_char ('y'); - else - sorry ("mangling unknown fixed point type"); - write_unsigned_number (GET_MODE_FBIT (TYPE_MODE (type))); - if (TYPE_SATURATING (type)) - write_char ('s'); - else - write_char ('n'); - break; - default: gcc_unreachable (); } --- gcc/cp/typeck2.cc.jj 2022-09-09 12:27:23.179736463 +0200 +++ gcc/cp/typeck2.cc 2022-09-09 18:46:07.273922394 +0200 @@ -1010,12 +1010,25 @@ check_narrowing (tree type, tree init, t else if (TREE_CODE (ftype) == REAL_TYPE && TREE_CODE (type) == REAL_TYPE) { - if ((same_type_p (ftype, long_double_type_node) - && (same_type_p (type, double_type_node) - || same_type_p (type, float_type_node))) - || (same_type_p (ftype, double_type_node) - && same_type_p (type, float_type_node)) - || (TYPE_PRECISION (type) < TYPE_PRECISION (ftype))) + if ((extended_float_type_p (ftype) || extended_float_type_p (type)) + ? /* "from a floating-point type T to another floating-point type + whose floating-point conversion rank is neither greater than + nor equal to that of T". + So, it is ok if + cp_compare_floating_point_conversion_ranks (ftype, type) + returns -2 (type has greater conversion rank than ftype) + or [-1..1] (type has equal conversion rank as ftype, possibly + different subrank. Only do this if at least one of the + types is extended floating-point type, otherwise keep doing + what we did before (for the sake of non-standard + backend types). */ + cp_compare_floating_point_conversion_ranks (ftype, type) >= 2 + : ((same_type_p (ftype, long_double_type_node) + && (same_type_p (type, double_type_node) + || same_type_p (type, float_type_node))) + || (same_type_p (ftype, double_type_node) + && same_type_p (type, float_type_node)) + || (TYPE_PRECISION (type) < TYPE_PRECISION (ftype)))) { if (TREE_CODE (init) == REAL_CST) { --- gcc/cp/parser.cc.jj 2022-09-09 12:27:23.177736489 +0200 +++ gcc/cp/parser.cc 2022-09-09 18:46:07.278922327 +0200 @@ -1129,6 +1129,7 @@ cp_keyword_starts_decl_specifier_p (enum case RID_UNSIGNED: case RID_FLOAT: case RID_DOUBLE: + CASE_RID_FLOATN: case RID_VOID: /* CV qualifiers. */ case RID_CONST: @@ -19706,6 +19707,12 @@ cp_parser_simple_type_specifier (cp_pars case RID_DOUBLE: type = double_type_node; break; + CASE_RID_FLOATN: + type = FLOATN_TYPE_NODE (token->keyword - RID_FLOATN_NX_FIRST); + if (type == NULL_TREE) + error ("%<_Float%d%> is not supported on this target", + floatn_nx_types[token->keyword - RID_FLOATN_NX_FIRST].n); + break; case RID_VOID: type = void_type_node; break; --- gcc/cp/typeck.cc.jj 2022-09-09 12:27:23.179736463 +0200 +++ gcc/cp/typeck.cc 2022-09-09 19:54:17.360423639 +0200 @@ -272,6 +272,116 @@ merge_type_attributes_from (tree type, t return cp_build_type_attribute_variant (type, attrs); } +/* Compare floating point conversion ranks and subranks of T1 and T2 + types. If T1 and T2 have unordered conversion ranks, return 3. + If T1 has greater conversion rank than T2, return 2. + If T2 has greater conversion rank than T1, return -2. + If T1 has equal conversion rank as T2, return -1, 0 or 1 depending + on if T1 has smaller, equal or greater conversion subrank than + T2. */ + +int +cp_compare_floating_point_conversion_ranks (tree t1, tree t2) +{ + tree mv1 = TYPE_MAIN_VARIANT (t1); + tree mv2 = TYPE_MAIN_VARIANT (t2); + bool extended1 = false; + bool extended2 = false; + + if (mv1 == mv2) + return 0; + + for (int i = 0; i < NUM_FLOATN_TYPES; ++i) + { + if (mv1 == FLOATN_TYPE_NODE (i)) + extended1 = true; + if (mv2 == FLOATN_TYPE_NODE (i)) + extended2 = true; + } + if (extended2 && !extended1) + { + int ret = cp_compare_floating_point_conversion_ranks (t2, t1); + return ret == 3 ? 3 : -ret; + } + + const struct real_format *fmt1 = REAL_MODE_FORMAT (TYPE_MODE (t1)); + const struct real_format *fmt2 = REAL_MODE_FORMAT (TYPE_MODE (t2)); + gcc_assert (fmt1->b == 2 && fmt2->b == 2); + /* For {ibm,mips}_extended_format formats, the type has variable + precision up to ~2150 bits when the first double is around maximum + representable double and second double is subnormal minimum. + So, e.g. for __ibm128 vs. std::float128_t, they have unordered + ranks. */ + int p1 = (MODE_COMPOSITE_P (TYPE_MODE (t1)) + ? fmt1->emax - fmt1->emin + fmt1->p - 1 : fmt1->p); + int p2 = (MODE_COMPOSITE_P (TYPE_MODE (t2)) + ? fmt2->emax - fmt2->emin + fmt2->p - 1 : fmt2->p); + /* The rank of a floating point type T is greater than the rank of + any floating-point type whose set of values is a proper subset + of the set of values of T. */ + if ((p1 > p2 && fmt1->emax >= fmt2->emax) + || (p1 == p2 && fmt1->emax > fmt2->emax)) + return 2; + if ((p1 < p2 && fmt1->emax <= fmt2->emax) + || (p1 == p2 && fmt1->emax < fmt2->emax)) + return -2; + if ((p1 > p2 && fmt1->emax < fmt2->emax) + || (p1 < p2 && fmt1->emax > fmt2->emax)) + return 3; + if (!extended1 && !extended2) + { + /* The rank of long double is greater than the rank of double, which + is greater than the rank of float. */ + if (t1 == long_double_type_node) + return 2; + else if (t2 == long_double_type_node) + return -2; + if (t1 == double_type_node) + return 2; + else if (t2 == double_type_node) + return -2; + if (t1 == float_type_node) + return 2; + else if (t2 == float_type_node) + return -2; + return 0; + } + /* Two extended floating-point types with the same set of values have equal + ranks. */ + if (extended1 && extended2) + /* We shouldn't have multiple different extended floating-point types + with the same set of values. */ + gcc_unreachable (); + + tree *p; + int cnt = 0; + for (p = &float_type_node; p <= &long_double_type_node; ++p) + { + const struct real_format *fmt3 = REAL_MODE_FORMAT (TYPE_MODE (*p)); + gcc_assert (fmt3->b == 2); + int p3 = (MODE_COMPOSITE_P (TYPE_MODE (*p)) + ? fmt3->emax - fmt3->emin + fmt3->p - 1 : fmt3->p); + if (p1 == p3 && fmt1->emax == fmt3->emax) + ++cnt; + } + /* An extended floating-point type with the same set of values + as exactly one cv-unqualified standard floating-point type + has a rank equal to the rank of that standard floating-point + type. + + An extended floating-point type with the same set of values + as more than one cv-unqualified standard floating-point type + has a rank equal to the rank of double. + + Thus, if the latter is true and t2 is long double, t2 + has higher rank. */ + if (cnt > 1 && mv2 == long_double_type_node) + return -2; + /* Otherwise, they have equal rank, but extended types + (other than std::bfloat16_t) have higher subrank. */ + return 1; +} + /* Return the common type for two arithmetic types T1 and T2 under the usual arithmetic conversions. The default conversions have already been applied, and enumerated types converted to their compatible @@ -342,6 +452,23 @@ cp_common_type (tree t1, tree t2) if (code2 == REAL_TYPE && code1 != REAL_TYPE) return build_type_attribute_variant (t2, attributes); + if (code1 == REAL_TYPE + && (extended_float_type_p (t1) || extended_float_type_p (t2))) + { + tree mv1 = TYPE_MAIN_VARIANT (t1); + tree mv2 = TYPE_MAIN_VARIANT (t2); + if (mv1 == mv2) + return build_type_attribute_variant (t1, attributes); + + int cmpret = cp_compare_floating_point_conversion_ranks (mv1, mv2); + if (cmpret == 3) + return error_mark_node; + else if (cmpret >= 0) + return build_type_attribute_variant (t1, attributes); + else + return build_type_attribute_variant (t2, attributes); + } + /* Both real or both integers; use the one with greater precision. */ if (TYPE_PRECISION (t1) > TYPE_PRECISION (t2)) return build_type_attribute_variant (t1, attributes); @@ -5041,7 +5168,20 @@ cp_build_binary_op (const op_location_t = targetm.invalid_binary_op (code, type0, type1))) { if (complain & tf_error) - error (invalid_op_diag); + { + if (code0 == REAL_TYPE + && code1 == REAL_TYPE + && (extended_float_type_p (type0) + || extended_float_type_p (type1)) + && cp_compare_floating_point_conversion_ranks (type0, + type1) == 3) + { + rich_location richloc (line_table, location); + binary_op_error (&richloc, code, type0, type1); + } + else + error (invalid_op_diag); + } return error_mark_node; } @@ -5911,6 +6051,19 @@ cp_build_binary_op (const op_location_t && (shorten || common || short_compare)) { result_type = cp_common_type (type0, type1); + if (result_type == error_mark_node + && code0 == REAL_TYPE + && code1 == REAL_TYPE + && (extended_float_type_p (type0) || extended_float_type_p (type1)) + && cp_compare_floating_point_conversion_ranks (type0, type1) == 3) + { + if (complain & tf_error) + { + rich_location richloc (line_table, location); + binary_op_error (&richloc, code, type0, type1); + } + return error_mark_node; + } if (complain & tf_warning) { do_warn_double_promotion (result_type, type0, type1, --- gcc/cp/call.cc.jj 2022-09-09 12:27:23.169736597 +0200 +++ gcc/cp/call.cc 2022-09-10 11:14:41.361732371 +0200 @@ -1519,6 +1519,22 @@ standard_conversion (tree to, tree from, || SCOPED_ENUM_P (from)) return NULL; + /* A prvalue of floating-point type can be converted to a prvalue of + another floating-point type with a greater or equal conversion + rank ([conv.rank]). A prvalue of standard floating-point type can + be converted to a prvalue of another standard floating-point type. + For backwards compatibility with handling __float128 and other + non-standard floating point types, allow all implicit floating + point conversions if neither type is extended floating-point + type and if at least one of them is, fail if they have unordered + conversion rank or from has higher conversion rank. */ + if (fcode == REAL_TYPE + && tcode == REAL_TYPE + && (extended_float_type_p (from) + || extended_float_type_p (to)) + && cp_compare_floating_point_conversion_ranks (from, to) >= 2) + return NULL; + /* If we're parsing an enum with no fixed underlying type, we're dealing with an incomplete type, which renders the conversion ill-formed. */ @@ -5842,6 +5858,21 @@ build_conditional_expr (const op_locatio /* In this case, there is always a common type. */ result_type = type_after_usual_arithmetic_conversions (arg2_type, arg3_type); + if (result_type == error_mark_node + && TREE_CODE (arg2_type) == REAL_TYPE + && TREE_CODE (arg3_type) == REAL_TYPE + && (extended_float_type_p (arg2_type) + || extended_float_type_p (arg3_type)) + && cp_compare_floating_point_conversion_ranks (arg2_type, + arg3_type) == 3) + { + if (complain & tf_error) + error_at (loc, "operands to % have unordered conversion rank " + "of types %qT and %qT", + arg2_type, arg3_type); + return error_mark_node; + } + if (complain & tf_warning) do_warn_double_promotion (result_type, arg2_type, arg3_type, "implicit conversion from %qH to %qI to " @@ -8531,7 +8562,8 @@ convert_arg_to_ellipsis (tree arg, tsubs if (TREE_CODE (arg_type) == REAL_TYPE && (TYPE_PRECISION (arg_type) < TYPE_PRECISION (double_type_node)) - && !DECIMAL_FLOAT_MODE_P (TYPE_MODE (arg_type))) + && !DECIMAL_FLOAT_MODE_P (TYPE_MODE (arg_type)) + && !extended_float_type_p (arg_type)) { if ((complain & tf_warning) && warn_double_promotion && !c_inhibit_evaluation_warnings) @@ -11719,6 +11751,75 @@ compare_ics (conversion *ics1, conversio return 1; } + { + /* A conversion in either direction between floating-point type FP1 and + floating-point type FP2 is better than a conversion in the same + direction between FP1 and arithmetic type T3 if + - the floating-point conversion rank of FP1 is equal to the rank of + FP2, and + - T3 is not a floating-point type, or T3 is a floating-point type + whose rank is not equal to the rank of FP1, or the floating-point + conversion subrank of FP2 is greater than the subrank of T3. */ + tree fp1 = from_type1; + tree fp2 = to_type1; + tree fp3 = from_type2; + tree t3 = to_type2; + int ret = 1; + if (TYPE_MAIN_VARIANT (fp2) == TYPE_MAIN_VARIANT (t3)) + { + std::swap (fp1, fp2); + std::swap (fp3, t3); + } + if (TYPE_MAIN_VARIANT (fp1) == TYPE_MAIN_VARIANT (fp3) + && TREE_CODE (fp1) == REAL_TYPE + /* Only apply this rule if at least one of the 3 types is + extended floating-point type, otherwise keep them as + before for compatibility reasons with types like __float128. + float, double and long double alone have different conversion + ranks and so when just those 3 types are involved, this + rule doesn't trigger. */ + && (extended_float_type_p (fp1) + || (TREE_CODE (fp2) == REAL_TYPE && extended_float_type_p (fp2)) + || (TREE_CODE (t3) == REAL_TYPE && extended_float_type_p (t3)))) + { + if (TREE_CODE (fp2) != REAL_TYPE) + { + ret = -ret; + std::swap (fp2, t3); + } + if (TREE_CODE (fp2) == REAL_TYPE) + { + if (cp_compare_floating_point_conversion_ranks (fp1, fp2) + 1U + <= 2U) + { + /* Conversion ranks of FP1 and FP2 are equal. */ + if (TREE_CODE (t3) != REAL_TYPE + || (cp_compare_floating_point_conversion_ranks (fp1, t3) + + 1U > 2U)) + /* FP1 <-> FP2 conversion is better. */ + return ret; + int c = cp_compare_floating_point_conversion_ranks (fp2, t3); + gcc_assert (c + 1U <= 2U); + if (c == 1) + /* Conversion subrank of FP2 is greater than subrank of T3. + FP1 <-> FP2 conversion is better. */ + return ret; + else if (c == -1) + /* Conversion subrank of FP2 is less than subrank of T3. + FP1 <-> T3 conversion is better. */ + return -ret; + } + else if (TREE_CODE (t3) == REAL_TYPE + && (cp_compare_floating_point_conversion_ranks (fp1, t3) + + 1U <= 2U)) + /* Conversion ranks of FP1 and FP2 are not equal, conversion + ranks of FP1 and T3 are equal. + FP1 <-> T3 conversion is better. */ + return -ret; + } + } + } + if (TYPE_PTR_P (from_type1) && TYPE_PTR_P (from_type2) && TYPE_PTR_P (to_type1) --- gcc/testsuite/g++.dg/cpp23/ext-floating1.C.jj 2022-09-09 18:46:07.281922287 +0200 +++ gcc/testsuite/g++.dg/cpp23/ext-floating1.C 2022-09-09 18:46:07.281922287 +0200 @@ -0,0 +1,248 @@ +// P1467R9 - Extended floating-point types and standard names. +// { dg-do compile { target c++23 } } +// { dg-options "" } + +#include "ext-floating.h" + +#ifdef __STRICT_ANSI__ +#undef __SIZEOF_FLOAT128__ +#endif + +using namespace std; + +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#ifdef __SIZEOF_FLOAT128__ +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#ifdef __STDCPP_FLOAT16_T__ +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#ifdef __STDCPP_FLOAT32_T__ +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#ifdef __STDCPP_FLOAT64_T__ +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#ifdef __STDCPP_FLOAT128_T__ +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#ifdef __SIZEOF_FLOAT128__ +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +#endif +#endif +#ifdef __STDCPP_BFLOAT16_T__ +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#if defined(__STDCPP_FLOAT16_T__) && defined(__STDCPP_FLOAT32_T__) +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if defined(__STDCPP_FLOAT16_T__) && defined(__STDCPP_FLOAT64_T__) +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if defined(__STDCPP_FLOAT16_T__) && defined(__STDCPP_FLOAT128_T__) +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if defined(__STDCPP_FLOAT32_T__) && defined(__STDCPP_FLOAT64_T__) +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if defined(__STDCPP_FLOAT32_T__) && defined(__STDCPP_FLOAT128_T__) +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if defined(__STDCPP_FLOAT64_T__) && defined(__STDCPP_FLOAT128_T__) +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if defined(__STDCPP_BFLOAT16_T__) && defined(__STDCPP_FLOAT32_T__) +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if defined(__STDCPP_BFLOAT16_T__) && defined(__STDCPP_FLOAT64_T__) +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if defined(__STDCPP_BFLOAT16_T__) && defined(__STDCPP_FLOAT128_T__) +static_assert (!is_same::value); +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#ifdef __STDCPP_FLOAT16_T__ +#if __FLT_MAX_EXP__ > __FLT16_MAX_EXP__ && __FLT_MANT_DIG__ > __FLT16_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if __DBL_MAX_EXP__ > __FLT16_MAX_EXP__ && __DBL_MANT_DIG__ > __FLT16_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if __LDBL_MAX_EXP__ > __FLT16_MAX_EXP__ && __LDBL_MANT_DIG__ > __FLT16_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#endif +#ifdef __STDCPP_FLOAT32_T__ +#if __FLT_MAX_EXP__ == __FLT32_MAX_EXP__ && __FLT_MANT_DIG__ == __FLT32_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if __DBL_MAX_EXP__ > __FLT32_MAX_EXP__ && __DBL_MANT_DIG__ > __FLT32_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if __LDBL_MAX_EXP__ > __FLT32_MAX_EXP__ && __LDBL_MANT_DIG__ > __FLT32_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#endif +#ifdef __STDCPP_FLOAT64_T__ +#if __FLT_MAX_EXP__ < __FLT64_MAX_EXP__ && __FLT_MANT_DIG__ < __FLT64_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if __DBL_MAX_EXP__ == __FLT64_MAX_EXP__ && __DBL_MANT_DIG__ == __FLT64_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if __LDBL_MAX_EXP__ > __FLT64_MAX_EXP__ && __LDBL_MANT_DIG__ > __FLT64_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if __LDBL_MAX_EXP__ == __FLT64_MAX_EXP__ && __LDBL_MANT_DIG__ == __FLT64_MANT_DIG__ \ + && __DBL_MAX_EXP__ == __FLT64_MAX_EXP__ && __DBL_MANT_DIG__ == __FLT64_MANT_DIG__ +// An extended floating-point type with the same set of values as more than one +// cv-unqualified standard floating-point type has a rank equal to the rank of +// double. +// Then long double will have higher rank than float64_t. +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#endif +#ifdef __STDCPP_FLOAT128_T__ +#if __FLT_MAX_EXP__ < __FLT128_MAX_EXP__ && __FLT_MANT_DIG__ < __FLT128_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if __DBL_MAX_EXP__ < __FLT128_MAX_EXP__ && __DBL_MANT_DIG__ < __FLT128_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if __LDBL_MAX_EXP__ <= __FLT128_MAX_EXP__ && __LDBL_MANT_DIG__ <= __FLT128_MANT_DIG__ \ + && __LDBL_MANT_DIG__ != 106 // IBM extended long double and IEEE quad are unordered. +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#ifdef __SIZEOF_FLOAT128__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#endif +#ifdef __STDCPP_BFLOAT16_T__ +#if __FLT_MAX_EXP__ > __BFLT16_MAX_EXP__ && __FLT_MANT_DIG__ > __BFLT16_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if __DBL_MAX_EXP__ > __BFLT16_MAX_EXP__ && __DBL_MANT_DIG__ > __BFLT16_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#if __LDBL_MAX_EXP__ > __BFLT16_MAX_EXP__ && __LDBL_MANT_DIG__ > __BFLT16_MANT_DIG__ +static_assert (is_same::value); +static_assert (is_same::value); +#endif +#endif + +void foo (float) {} +void foo (double) {} +void foo (long double) {} +#ifdef __STDCPP_FLOAT16_T__ +void foo (float16_t) {} +#endif +#ifdef __STDCPP_FLOAT32_T__ +void foo (float32_t) {} +#endif +#ifdef __STDCPP_FLOAT64_T__ +void foo (float64_t) {} +#endif +#ifdef __STDCPP_FLOAT128_T__ +void foo (float128_t) {} +#endif +#ifdef __STDCPP_BFLOAT16_T__ +void foo (bfloat16_t) {} +#endif --- gcc/testsuite/g++.dg/cpp23/ext-floating2.C.jj 2022-09-09 18:46:07.281922287 +0200 +++ gcc/testsuite/g++.dg/cpp23/ext-floating2.C 2022-09-09 18:46:07.281922287 +0200 @@ -0,0 +1,157 @@ +// P1467R9 - Extended floating-point types and standard names. +// { dg-do compile { target c++23 } } +// { dg-options "" } + +#include "ext-floating.h" + +#ifdef __STRICT_ANSI__ +#undef __SIZEOF_FLOAT128__ +#endif + +using namespace std; + +float fa = 1.0f; +float fb = (float) 1.0f; +float fc = 1.0; +float fd = (float) 1.0; +float fe = 1.0L; +float ff = (float) 1.0L; +#ifdef __SIZEOF_FLOAT128__ +float fg = 1.0Q; +float fh = (float) 1.0Q; +#endif +double da = 1.0f; +double db = (double) 1.0f; +double dc = 1.0; +double dd = (double) 1.0; +double de = 1.0L; +double df = (double) 1.0L; +#ifdef __SIZEOF_FLOAT128__ +double dg = 1.0Q; +double dh = (double) 1.0Q; +#endif +long double lda = 1.0f; +long double ldb = (long double) 1.0f; +long double ldc = 1.0; +long double ldd = (long double) 1.0; +long double lde = 1.0L; +long double ldf = (long double) 1.0L; +#ifdef __SIZEOF_FLOAT128__ +long double ldg = 1.0Q; +long double ldh = (long double) 1.0Q; +__float128 qa = 1.0f; +__float128 qb = (__float128) 1.0f; +__float128 qc = 1.0; +__float128 qd = (__float128) 1.0; +__float128 qe = 1.0L; +__float128 qf = (__float128) 1.0L; +__float128 qg = 1.0Q; +__float128 qh = (__float128) 1.0Q; +#endif +#ifdef __STDCPP_FLOAT16_T__ +float16_t f16a = 1.0F16; +float16_t f16b = (float16_t) 1.0F16; +#ifdef __STDCPP_FLOAT32_T__ +float16_t f16c = 1.0F32; // { dg-error "cannot convert '_Float32' to 'std::float16_t' \\\{aka '_Float16'\\\} in initialization" "" { target { float16 && float32 } } } +float16_t f16d = (float16_t) 1.0F32; +#endif +#ifdef __STDCPP_FLOAT64_T__ +float16_t f16e = 1.0F64; // { dg-error "cannot convert '_Float64' to 'std::float16_t' \\\{aka '_Float16'\\\} in initialization" "" { target { float16 && float64 } } } +float16_t f16f = (float16_t) 1.0F64; +#endif +#ifdef __STDCPP_FLOAT128_T__ +float16_t f16g = 1.0F128; // { dg-error "cannot convert '_Float128' to 'std::float16_t' \\\{aka '_Float16'\\\} in initialization" "" { target { float16 && float128 } } } +float16_t f16h = (float16_t) 1.0F128; +#endif +float16_t f16j = (float16_t) 1.0f; +float16_t f16l = (float16_t) 1.0; +float16_t f16n = (float16_t) 1.0L; +#ifdef __SIZEOF_FLOAT128__ +float16_t f16p = (float16_t) 1.0Q; +#endif +#endif +#ifdef __STDCPP_FLOAT32_T__ +#ifdef __STDCPP_FLOAT16_T__ +float32_t f32a = 1.0F16; +float32_t f32b = (float32_t) 1.0F16; +#endif +float32_t f32c = 1.0F32; +float32_t f32d = (float32_t) 1.0F32; +#ifdef __STDCPP_FLOAT64_T__ +float32_t f32e = 1.0F64; // { dg-error "cannot convert '_Float64' to 'std::float32_t' \\\{aka '_Float32'\\\} in initialization" "" { target { float32 && float64 } } } +float32_t f32f = (float32_t) 1.0F64; +#endif +#ifdef __STDCPP_FLOAT128_T__ +float32_t f32g = 1.0F128; // { dg-error "cannot convert '_Float128' to 'std::float32_t' \\\{aka '_Float32'\\\} in initialization" "" { target { float32 && float128 } } } +float32_t f32h = (float32_t) 1.0F128; +#endif +#if __FLT_MAX_EXP__ <= __FLT32_MAX_EXP__ && __FLT_MANT_DIG__ <= __FLT32_MANT_DIG__ +float32_t f32i = 1.0f; +#endif +float32_t f32j = (float32_t) 1.0f; +float32_t f32l = (float32_t) 1.0; +float32_t f32n = (float32_t) 1.0L; +#ifdef __SIZEOF_FLOAT128__ +float32_t f32p = (float32_t) 1.0Q; +#endif +#endif +#ifdef __STDCPP_FLOAT64_T__ +#ifdef __STDCPP_FLOAT16_T__ +float64_t f64a = 1.0F16; +float64_t f64b = (float64_t) 1.0F16; +#endif +#ifdef __STDCPP_FLOAT32_T__ +float64_t f64c = 1.0F32; +float64_t f64d = (float64_t) 1.0F32; +#endif +float64_t f64e = 1.0F64; +float64_t f64f = (float64_t) 1.0F64; +#ifdef __STDCPP_FLOAT128_T__ +float64_t f64g = 1.0F128; // { dg-error "cannot convert '_Float128' to 'std::float64_t' \\\{aka '_Float64'\\\} in initialization" "" { target { float64 && float128 } } } +float64_t f64h = (float64_t) 1.0F128; +#endif +#if __FLT_MAX_EXP__ <= __FLT64_MAX_EXP__ && __FLT_MANT_DIG__ <= __FLT64_MANT_DIG__ +float64_t f64i = 1.0f; +#endif +float64_t f64j = (float64_t) 1.0f; +#if __DBL_MAX_EXP__ <= __FLT64_MAX_EXP__ && __DBL_MANT_DIG__ <= __FLT64_MANT_DIG__ +float64_t f64k = 1.0; +#endif +float64_t f64l = (float64_t) 1.0; +float64_t f64n = (float64_t) 1.0L; +#ifdef __SIZEOF_FLOAT128__ +float64_t f64p = (float64_t) 1.0Q; +#endif +#endif +#ifdef __STDCPP_FLOAT128_T__ +#ifdef __STDCPP_FLOAT16_T__ +float128_t f128a = 1.0F16; +float128_t f128b = (float128_t) 1.0F16; +#endif +#ifdef __STDCPP_FLOAT32_T__ +float128_t f128c = 1.0F32; +float128_t f128d = (float128_t) 1.0F32; +#endif +#ifdef __STDCPP_FLOAT64_T__ +float128_t f128e = 1.0F64; +float128_t f128f = (float128_t) 1.0F64; +#endif +float128_t f128g = 1.0F128; +float128_t f128h = (float128_t) 1.0F128; +#if __FLT_MAX_EXP__ <= __FLT128_MAX_EXP__ && __FLT_MANT_DIG__ <= __FLT128_MANT_DIG__ +float128_t f128i = 1.0f; +#endif +float128_t f128j = (float128_t) 1.0f; +#if __DBL_MAX_EXP__ <= __FLT128_MAX_EXP__ && __DBL_MANT_DIG__ <= __FLT128_MANT_DIG__ +float128_t f128k = 1.0; +#endif +float128_t f128l = (float128_t) 1.0; +#if __LDBL_MAX_EXP__ <= __FLT128_MAX_EXP__ && __LDBL_MANT_DIG__ <= __FLT128_MANT_DIG__ && __LDBL_MANT_DIG__ != 106 +float128_t f128m = 1.0L; +#endif +float128_t f128n = (float128_t) 1.0L; +#ifdef __SIZEOF_FLOAT128__ +float128_t f128o = 1.0Q; +float128_t f128p = (float128_t) 1.0Q; +#endif +#endif --- gcc/testsuite/g++.dg/cpp23/ext-floating3.C.jj 2022-09-09 18:46:07.281922287 +0200 +++ gcc/testsuite/g++.dg/cpp23/ext-floating3.C 2022-09-10 10:21:25.748210213 +0200 @@ -0,0 +1,128 @@ +// P1467R9 - Extended floating-point types and standard names. +// Variant of ext-floating2.C test with x86 specific assumptions +// about float, double, long double and existence of __float128. +// And some further tests. +// { dg-do compile { target { c++23 && { i?86-*-linux* x86_64-*-linux* } } } } +// { dg-options "" } + +#include "ext-floating.h" + +#if !defined(__STDCPP_FLOAT32_T__) \ + || !defined(__STDCPP_FLOAT64_T__) || !defined(__STDCPP_FLOAT128_T__) \ + || __FLT_MAX_EXP__ != __FLT32_MAX_EXP__ || __FLT_MANT_DIG__ != __FLT32_MANT_DIG__ \ + || __DBL_MAX_EXP__ != __FLT64_MAX_EXP__ || __DBL_MANT_DIG__ != __FLT64_MANT_DIG__ \ + || __LDBL_MAX_EXP__ != __FLT128_MAX_EXP__ || __LDBL_MANT_DIG__ >= __FLT128_MANT_DIG__ \ + || !defined(__SIZEOF_FLOAT128__) +#error Unexpected set of floating point types +#endif + +using namespace std; + +#ifdef __STDCPP_FLOAT16_T__ +float16_t f16i = 1.0f; // { dg-error "cannot convert 'float' to 'std::float16_t' \\\{aka '_Float16'\\\} in initialization" "" { target float16 } } +float16_t f16k = 1.0; // { dg-error "cannot convert 'double' to 'std::float16_t' \\\{aka '_Float16'\\\} in initialization" "" { target float16 } } +float16_t f16m = 1.0L; // { dg-error "cannot convert 'long double' to 'std::float16_t' \\\{aka '_Float16'\\\} in initialization" "" { target float16 } } +float16_t f16o = 1.0Q; // { dg-error "cannot convert '__float128' to 'std::float16_t' \\\{aka '_Float16'\\\} in initialization" "" { target float16 } } +#endif +float32_t f32i = 1.0f; +float32_t f32k = 1.0; // { dg-error "cannot convert 'double' to 'std::float32_t' \\\{aka '_Float32'\\\} in initialization" } +float32_t f32m = 1.0L; // { dg-error "cannot convert 'long double' to 'std::float32_t' \\\{aka '_Float32'\\\} in initialization" } +float32_t f32o = 1.0Q; // { dg-error "cannot convert '__float128' to 'std::float32_t' \\\{aka '_Float32'\\\} in initialization" } +float64_t f64i = 1.0f; +float64_t f64k = 1.0; +float64_t f64m = 1.0L; // { dg-error "cannot convert 'long double' to 'std::float64_t' \\\{aka '_Float64'\\\} in initialization" } +float64_t f64o = 1.0Q; // { dg-error "cannot convert '__float128' to 'std::float64_t' \\\{aka '_Float64'\\\} in initialization" } +float128_t f128i = 1.0f; +float128_t f128k = 1.0; +float128_t f128m = 1.0L; +float128_t f128o = 1.0Q; + +#ifdef __STDCPP_FLOAT16_T__ +constexpr float16_t f16x = 1.0F16; +#endif +constexpr float32_t f32x = 2.0F32; +constexpr float64_t f64x = 3.0F64; +constexpr float128_t f128x = 4.0F128; +constexpr float fx = 5.0f; +constexpr double dx = 6.0; +constexpr long double ldx = 7.0L; + +constexpr int foo (float32_t) { return 1; } +constexpr int foo (float64_t) { return 2; } +constexpr int bar (float) { return 3; } +constexpr int bar (double) { return 4; } +constexpr int bar (long double) { return 5; } +constexpr int baz (float32_t) { return 6; } +constexpr int baz (float64_t) { return 7; } +constexpr int baz (float128_t) { return 8; } +constexpr int qux (float64_t) { return 9; } +constexpr int qux (float32_t) { return 10; } +constexpr int fred (long double) { return 11; } +constexpr int fred (double) { return 12; } +constexpr int fred (float) { return 13; } +constexpr int thud (float128_t) { return 14; } +constexpr int thud (float64_t) { return 15; } +constexpr int thud (float32_t) { return 16; } +struct S { + constexpr operator float32_t () const { return 1.0f32; } + constexpr operator float64_t () const { return 2.0f64; } +}; +struct T { + constexpr operator float64_t () const { return 3.0f64; } + constexpr operator float32_t () const { return 4.0f32; } +}; + +void +test (S s, T t) +{ +#ifdef __STDCPP_FLOAT16_T__ + foo (float16_t (1.0)); // { dg-error "call of overloaded 'foo\\\(std::float16_t\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (foo (float (2.0)) == 1); + static_assert (foo (double (3.0)) == 2); + constexpr double x (s); + static_assert (x == 2.0); +#ifdef __STDCPP_FLOAT16_T__ + bar (f16x); // { dg-error "call of overloaded 'bar\\\(const std::float16_t\\\&\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (bar (f32x) == 3); + static_assert (bar (f64x) == 4); + bar (f128x); // { dg-error "no matching function for call to 'bar\\\(const std::float128_t\\\&\\\)'" } + static_assert (bar (fx) == 3); + static_assert (bar (dx) == 4); + static_assert (bar (ldx) == 5); +#ifdef __STDCPP_FLOAT16_T__ + baz (f16x); // { dg-error "call of overloaded 'baz\\\(const std::float16_t\\\&\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (baz (f32x) == 6); + static_assert (baz (f64x) == 7); + static_assert (baz (f128x) == 8); + static_assert (baz (fx) == 6); + static_assert (baz (dx) == 7); + static_assert (baz (ldx) == 8); +#ifdef __STDCPP_FLOAT16_T__ + qux (float16_t (1.0)); // { dg-error "call of overloaded 'qux\\\(std::float16_t\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (qux (float (2.0)) == 10); + static_assert (qux (double (3.0)) == 9); + constexpr double y (t); + static_assert (y == 3.0); +#ifdef __STDCPP_FLOAT16_T__ + fred (f16x); // { dg-error "call of overloaded 'fred\\\(const std::float16_t\\\&\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (fred (f32x) == 13); + static_assert (fred (f64x) == 12); + fred (f128x); // { dg-error "no matching function for call to 'fred\\\(const std::float128_t\\\&\\\)'" } + static_assert (fred (fx) == 13); + static_assert (fred (dx) == 12); + static_assert (fred (ldx) == 11); +#ifdef __STDCPP_FLOAT16_T__ + thud (f16x); // { dg-error "call of overloaded 'thud\\\(const std::float16_t\\\&\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (thud (f32x) == 16); + static_assert (thud (f64x) == 15); + static_assert (thud (f128x) == 14); + static_assert (thud (fx) == 16); + static_assert (thud (dx) == 15); + static_assert (thud (ldx) == 14); +} --- gcc/testsuite/g++.dg/cpp23/ext-floating4.C.jj 2022-09-09 18:48:11.979261440 +0200 +++ gcc/testsuite/g++.dg/cpp23/ext-floating4.C 2022-09-10 10:55:24.105457186 +0200 @@ -0,0 +1,126 @@ +// P1467R9 - Extended floating-point types and standard names. +// Variant of ext-floating3.C test with different specific assumptions +// about float, double, long double. +// float, double and long double are assumed to be IEEE 754 single, double +// and quad. +// { dg-do compile { target { c++23 && { aarch64*-*-* powerpc64le*-*-linux* riscv*-*-* s390*-*-* sparc*-*-linux* } } } } +// { dg-options "" } +// { dg-additional-options "-mlong-double-128" { target s390*-*-* sparc*-*-linux* } } +// { dg-additional-options "-mvsx -mfloat128 -mlong-double-128 -mabi=ieeelongdouble -Wno-psabi" { target powerpc64le*-*-linux* } } + +#include "ext-floating.h" + +#if !defined(__STDCPP_FLOAT32_T__) \ + || !defined(__STDCPP_FLOAT64_T__) || !defined(__STDCPP_FLOAT128_T__) \ + || __FLT_MAX_EXP__ != __FLT32_MAX_EXP__ || __FLT_MANT_DIG__ != __FLT32_MANT_DIG__ \ + || __DBL_MAX_EXP__ != __FLT64_MAX_EXP__ || __DBL_MANT_DIG__ != __FLT64_MANT_DIG__ \ + || __LDBL_MAX_EXP__ != __FLT128_MAX_EXP__ || __LDBL_MANT_DIG__ != __FLT128_MANT_DIG__ +#error Unexpected set of floating point types +#endif + +using namespace std; + +#ifdef __STDCPP_FLOAT16_T__ +float16_t f16i = 1.0f; // { dg-error "cannot convert 'float' to 'std::float16_t' \\\{aka '_Float16'\\\} in initialization" "" { target float16 } } +float16_t f16k = 1.0; // { dg-error "cannot convert 'double' to 'std::float16_t' \\\{aka '_Float16'\\\} in initialization" "" { target float16 } } +float16_t f16m = 1.0L; // { dg-error "cannot convert 'long double' to 'std::float16_t' \\\{aka '_Float16'\\\} in initialization" "" { target float16 } } +#endif +float32_t f32i = 1.0f; +float32_t f32k = 1.0; // { dg-error "cannot convert 'double' to 'std::float32_t' \\\{aka '_Float32'\\\} in initialization" } +float32_t f32m = 1.0L; // { dg-error "cannot convert 'long double' to 'std::float32_t' \\\{aka '_Float32'\\\} in initialization" } +float64_t f64i = 1.0f; +float64_t f64k = 1.0; +float64_t f64m = 1.0L; // { dg-error "cannot convert 'long double' to 'std::float64_t' \\\{aka '_Float64'\\\} in initialization" } +float128_t f128i = 1.0f; +float128_t f128k = 1.0; +float128_t f128m = 1.0L; + +#ifdef __STDCPP_FLOAT16_T__ +constexpr float16_t f16x = 1.0F16; +#endif +constexpr float32_t f32x = 2.0F32; +constexpr float64_t f64x = 3.0F64; +constexpr float128_t f128x = 4.0F128; +constexpr float fx = 5.0f; +constexpr double dx = 6.0; +constexpr long double ldx = 7.0L; + +constexpr int foo (float32_t) { return 1; } +constexpr int foo (float64_t) { return 2; } +constexpr int bar (float) { return 3; } +constexpr int bar (double) { return 4; } +constexpr int bar (long double) { return 5; } +constexpr int baz (float32_t) { return 6; } +constexpr int baz (float64_t) { return 7; } +constexpr int baz (float128_t) { return 8; } +constexpr int qux (float64_t) { return 9; } +constexpr int qux (float32_t) { return 10; } +constexpr int fred (long double) { return 11; } +constexpr int fred (double) { return 12; } +constexpr int fred (float) { return 13; } +constexpr int thud (float128_t) { return 14; } +constexpr int thud (float64_t) { return 15; } +constexpr int thud (float32_t) { return 16; } +struct S { + constexpr operator float32_t () const { return 1.0f32; } + constexpr operator float64_t () const { return 2.0f64; } +}; +struct T { + constexpr operator float64_t () const { return 3.0f64; } + constexpr operator float32_t () const { return 4.0f32; } +}; + +void +test (S s, T t) +{ +#ifdef __STDCPP_FLOAT16_T__ + foo (float16_t (1.0)); // { dg-error "call of overloaded 'foo\\\(std::float16_t\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (foo (float (2.0)) == 1); + static_assert (foo (double (3.0)) == 2); + constexpr double x (s); + static_assert (x == 2.0); +#ifdef __STDCPP_FLOAT16_T__ + bar (f16x); // { dg-error "call of overloaded 'bar\\\(const std::float16_t\\\&\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (bar (f32x) == 3); + static_assert (bar (f64x) == 4); + static_assert (bar (f128x) == 5); + static_assert (bar (fx) == 3); + static_assert (bar (dx) == 4); + static_assert (bar (ldx) == 5); +#ifdef __STDCPP_FLOAT16_T__ + baz (f16x); // { dg-error "call of overloaded 'baz\\\(const std::float16_t\\\&\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (baz (f32x) == 6); + static_assert (baz (f64x) == 7); + static_assert (baz (f128x) == 8); + static_assert (baz (fx) == 6); + static_assert (baz (dx) == 7); + static_assert (baz (ldx) == 8); +#ifdef __STDCPP_FLOAT16_T__ + qux (float16_t (1.0)); // { dg-error "call of overloaded 'qux\\\(std::float16_t\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (qux (float (2.0)) == 10); + static_assert (qux (double (3.0)) == 9); + constexpr double y (t); + static_assert (y == 3.0); +#ifdef __STDCPP_FLOAT16_T__ + fred (f16x); // { dg-error "call of overloaded 'fred\\\(const std::float16_t\\\&\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (fred (f32x) == 13); + static_assert (fred (f64x) == 12); + static_assert (fred (f128x) == 11); + static_assert (fred (fx) == 13); + static_assert (fred (dx) == 12); + static_assert (fred (ldx) == 11); +#ifdef __STDCPP_FLOAT16_T__ + thud (f16x); // { dg-error "call of overloaded 'thud\\\(const std::float16_t\\\&\\\)' is ambiguous" "" { target float16 } } +#endif + static_assert (thud (f32x) == 16); + static_assert (thud (f64x) == 15); + static_assert (thud (f128x) == 14); + static_assert (thud (fx) == 16); + static_assert (thud (dx) == 15); + static_assert (thud (ldx) == 14); +} --- gcc/testsuite/g++.dg/cpp23/ext-floating5.C.jj 2022-09-09 20:00:22.489534397 +0200 +++ gcc/testsuite/g++.dg/cpp23/ext-floating5.C 2022-09-10 10:44:59.653943267 +0200 @@ -0,0 +1,13 @@ +// P1467R9 - Extended floating-point types and standard names. +// IBM extended long double and _Float128 should have unordered conversion +// ranks as IBM extended long double has variable precision from 53 bits +// for denormals to more than 2150 bits for certain numbers. +// { dg-do compile { target { c++23 && { powerpc*-*-linux* } } } } +// { dg-require-effective-target ppc_float128_sw } +// { dg-options "-mvsx -mfloat128 -mlong-double-128 -mabi=ibmlongdouble" } + +auto a = 1.0F128 + 1.0L; // { dg-error "invalid operands to binary \\\+ \\\(have '_Float128' and 'long double'\\\)" } +auto b = 1.0L + 1.0F128; // { dg-error "invalid operands to binary \\\+ \\\(have 'long double' and '_Float128'\\\)" } +bool c; +auto d = c ? 1.0F128 : 1.0L; // { dg-error "operands to '\\\?:' have unordered conversion rank of types '_Float128' and 'long double'" } +auto e = c ? 1.0L : 1.0F128; // { dg-error "operands to '\\\?:' have unordered conversion rank of types 'long double' and '_Float128'" } --- gcc/testsuite/g++.dg/cpp23/ext-floating6.C.jj 2022-09-10 10:19:12.402030094 +0200 +++ gcc/testsuite/g++.dg/cpp23/ext-floating6.C 2022-09-09 18:46:07.281922287 +0200 @@ -0,0 +1,30 @@ +// P1467R9 - Extended floating-point types and standard names. +// { dg-do compile { target c++23 } } +// { dg-options "" } + +#include "ext-floating.h" + +#ifdef __STRICT_ANSI__ +#undef __SIZEOF_FLOAT128__ +#endif + +using namespace std; + +float foo (float x, float y, float z) { return x * y + z; } +double foo (double x, double y, double z) { return x * y + z; } +long double foo (long double x, long double y, long double z) { return x * y + z; } +#ifdef __STDCPP_FLOAT16_T__ +float16_t foo (float16_t x, float16_t y, float16_t z) { return x * y + z; } +#endif +#ifdef __STDCPP_FLOAT32_T__ +float32_t foo (float32_t x, float32_t y, float32_t z) { return x * y + z; } +#endif +#ifdef __STDCPP_FLOAT64_T__ +float64_t foo (float64_t x, float64_t y, float64_t z) { return x * y + z; } +#endif +#ifdef __STDCPP_FLOAT128_T__ +float128_t foo (float128_t x, float128_t y, float128_t z) { return x * y + z; } +#endif +#ifdef __STDCPP_BFLOAT16_T__ +bfloat16_t foo (bfloat16_t x, bfloat16_t y, bfloat16_t z) { return x * y + z; } +#endif --- gcc/testsuite/g++.dg/cpp23/ext-floating7.C.jj 2022-09-10 10:47:37.550796997 +0200 +++ gcc/testsuite/g++.dg/cpp23/ext-floating7.C 2022-09-10 10:53:25.622065903 +0200 @@ -0,0 +1,119 @@ +// P1467R9 - Extended floating-point types and standard names. +// { dg-do run { target { c++23 && float16_runtime } } } +// { dg-options "" } +// { dg-add-options float16 } + +#ifndef WIDTH +#ifndef __STDCPP_FLOAT16_T__ +#error Unexpected +#endif +#define WIDTH 16 +#endif + +#include +#include "ext-floating.h" + +#define CONCATX(X, Y) X ## Y +#define CONCAT(X, Y) CONCATX (X, Y) +#define CONCAT3(X, Y, Z) CONCAT (CONCAT (X, Y), Z) +#define TYPE CONCAT (_Float, WIDTH) +#define CST(C) CONCAT3 (C, f, WIDTH) +#define CSTU(C) CONCAT3 (C, F, WIDTH) + +extern "C" void abort (); + +volatile TYPE a = CST (1.0), b = CSTU (2.5), c = -CST (2.5); +volatile TYPE a2 = CST (1.0), z = CST (0.0), nz = -CST (0.0); + +// These types are not subject to default argument promotions. + +TYPE +vafn (TYPE arg1, ...) +{ + va_list ap; + TYPE ret; + va_start (ap, arg1); + ret = arg1 + va_arg (ap, TYPE); + va_end (ap); + return ret; +} + +TYPE +fn (TYPE arg) +{ + return arg / 4; +} + +int +main (void) +{ + volatile TYPE r; + r = -b; + if (r != c) + abort (); + r = a + b; + if (r != CST (3.5)) + abort (); + r = a - b; + if (r != -CST (1.5)) + abort (); + r = 2 * c; + if (r != -5) + abort (); + r = b * c; + if (r != -CST (6.25)) + abort (); + r = b / (a + a); + if (r != CST (1.25)) + abort (); + r = c * 3; + if (r != -CST (7.5)) + abort (); + volatile int i = r; + if (i != -7) + abort (); + r = vafn (a, c); + if (r != -CST (1.5)) + abort (); + r = fn (a); + if (r != CST (0.25)) + abort (); + if ((a < b) != 1) + abort (); + if ((b < a) != 0) + abort (); + if ((a < a2) != 0) + abort (); + if ((nz < z) != 0) + abort (); + if ((a <= b) != 1) + abort (); + if ((b <= a) != 0) + abort (); + if ((a <= a2) != 1) + abort (); + if ((nz <= z) != 1) + abort (); + if ((a > b) != 0) + abort (); + if ((b > a) != 1) + abort (); + if ((a > a2) != 0) + abort (); + if ((nz > z) != 0) + abort (); + if ((a >= b) != 0) + abort (); + if ((b >= a) != 1) + abort (); + if ((a >= a2) != 1) + abort (); + if ((nz >= z) != 1) + abort (); + i = (nz == z); + if (i != 1) + abort (); + i = (a == b); + if (i != 0) + abort (); +} --- gcc/testsuite/g++.dg/cpp23/ext-floating8.C.jj 2022-09-10 10:52:54.654486646 +0200 +++ gcc/testsuite/g++.dg/cpp23/ext-floating8.C 2022-09-10 10:53:41.424851341 +0200 @@ -0,0 +1,13 @@ +// P1467R9 - Extended floating-point types and standard names. +// { dg-do run { target { c++23 && float32_runtime } } } +// { dg-options "" } +// { dg-add-options float32 } + +#ifndef WIDTH +#ifndef __STDCPP_FLOAT32_T__ +#error Unexpected +#endif +#define WIDTH 32 +#endif + +#include "ext-floating7.C" --- gcc/testsuite/g++.dg/cpp23/ext-floating9.C.jj 2022-09-10 10:53:49.328744035 +0200 +++ gcc/testsuite/g++.dg/cpp23/ext-floating9.C 2022-09-10 10:53:57.280636056 +0200 @@ -0,0 +1,13 @@ +// P1467R9 - Extended floating-point types and standard names. +// { dg-do run { target { c++23 && float64_runtime } } } +// { dg-options "" } +// { dg-add-options float64 } + +#ifndef WIDTH +#ifndef __STDCPP_FLOAT64_T__ +#error Unexpected +#endif +#define WIDTH 64 +#endif + +#include "ext-floating7.C" --- gcc/testsuite/g++.dg/cpp23/ext-floating10.C.jj 2022-09-10 10:54:08.224487463 +0200 +++ gcc/testsuite/g++.dg/cpp23/ext-floating10.C 2022-09-10 10:54:21.578306159 +0200 @@ -0,0 +1,13 @@ +// P1467R9 - Extended floating-point types and standard names. +// { dg-do run { target { c++23 && float128_runtime } } } +// { dg-options "" } +// { dg-add-options float128 } + +#ifndef WIDTH +#ifndef __STDCPP_FLOAT128_T__ +#error Unexpected +#endif +#define WIDTH 128 +#endif + +#include "ext-floating7.C" --- gcc/testsuite/g++.dg/cpp23/ext-floating.h.jj 2022-09-09 18:46:07.281922287 +0200 +++ gcc/testsuite/g++.dg/cpp23/ext-floating.h 2022-09-09 18:46:07.281922287 +0200 @@ -0,0 +1,30 @@ +// P1467R9 - Extended floating-point types and standard names. + +namespace std +{ + #ifdef __STDCPP_FLOAT16_T__ + using float16_t = _Float16; + #endif + #ifdef __STDCPP_FLOAT32_T__ + using float32_t = _Float32; + #endif + #ifdef __STDCPP_FLOAT64_T__ + using float64_t = _Float64; + #endif + #ifdef __STDCPP_FLOAT128_T__ + using float128_t = _Float128; + #endif + #undef __STDCPP_BFLOAT16_T__ + #ifdef __STDCPP_BFLOAT16_T__ + using bfloat16_t = __bf16; // ??? + #endif + template struct integral_constant { + static constexpr T value = v; + }; + typedef integral_constant false_type; + typedef integral_constant true_type; + template + struct is_same : std::false_type {}; + template + struct is_same : std::true_type {}; +} --- gcc/testsuite/g++.target/i386/float16-1.C.jj 2021-12-30 15:12:43.315149146 +0100 +++ gcc/testsuite/g++.target/i386/float16-1.C 2022-09-12 08:49:38.178955414 +0200 @@ -1,8 +1,8 @@ /* { dg-do compile } */ /* { dg-options "-O2 -mno-sse2" } */ -_Float16/* { dg-error "does not name a type" } */ +_Float16 /* { dg-error "expected unqualified-id before '_Float16'" } */ foo (_Float16 x) { return x; -} +} /* { dg-error "'_Float16' is not supported on this target" } */ --- libcpp/expr.cc.jj 2022-09-08 13:01:19.837771596 +0200 +++ libcpp/expr.cc 2022-09-09 09:52:46.533798139 +0200 @@ -215,7 +215,6 @@ interpret_float_suffix (cpp_reader *pfil case 'f': case 'F': f++; if (len > 0 - && !CPP_OPTION (pfile, cplusplus) && s[1] >= '1' && s[1] <= '9' && fn_bits == 0) @@ -230,7 +229,9 @@ interpret_float_suffix (cpp_reader *pfil len--; s++; } - if (len > 0 && s[1] == 'x') + if (len > 0 + && s[1] == 'x' + && !CPP_OPTION (pfile, cplusplus)) { fnx++; len--; --- include/demangle.h.jj 2022-08-26 09:23:37.788064821 +0200 +++ include/demangle.h 2022-09-09 09:52:46.533798139 +0200 @@ -457,6 +457,11 @@ enum demangle_component_type DEMANGLE_COMPONENT_MODULE_PARTITION, DEMANGLE_COMPONENT_MODULE_ENTITY, DEMANGLE_COMPONENT_MODULE_INIT, + + /* A builtin type with argument. This holds the builtin type + information. */ + DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE + }; /* Types which are only used internally. */ @@ -543,6 +548,14 @@ struct demangle_component const struct demangle_builtin_type_info *type; } s_builtin; + /* For DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE. */ + struct + { + /* Builtin type. */ + const struct demangle_builtin_type_info *type; + int arg; + } s_extended_builtin; + /* For DEMANGLE_COMPONENT_SUB_STD. */ struct { --- libiberty/cp-demangle.c.jj 2022-08-26 09:23:37.788064821 +0200 +++ libiberty/cp-demangle.c 2022-09-09 09:52:46.957792397 +0200 @@ -648,6 +648,10 @@ d_dump (struct demangle_component *dc, i case DEMANGLE_COMPONENT_BUILTIN_TYPE: printf ("builtin type %s\n", dc->u.s_builtin.type->name); return; + case DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE: + printf ("builtin type %s%d\n", dc->u.s_extended_builtin.type->name, + dc->u.s_extended_builtin.type->arg); + return; case DEMANGLE_COMPONENT_OPERATOR: printf ("operator %s\n", dc->u.s_operator.op->name); return; @@ -771,11 +775,6 @@ d_dump (struct demangle_component *dc, i case DEMANGLE_COMPONENT_PTRMEM_TYPE: printf ("pointer to member type\n"); break; - case DEMANGLE_COMPONENT_FIXED_TYPE: - printf ("fixed-point type, accum? %d, sat? %d\n", - dc->u.s_fixed.accum, dc->u.s_fixed.sat); - d_dump (dc->u.s_fixed.length, indent + 2); - break; case DEMANGLE_COMPONENT_ARGLIST: printf ("argument list\n"); break; @@ -1109,6 +1108,27 @@ d_make_builtin_type (struct d_info *di, return p; } +/* Add a new extended builtin type component. */ + +static struct demangle_component * +d_make_extended_builtin_type (struct d_info *di, + const struct demangle_builtin_type_info *type, + int arg) +{ + struct demangle_component *p; + + if (type == NULL) + return NULL; + p = d_make_empty (di); + if (p != NULL) + { + p->type = DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE; + p->u.s_extended_builtin.type = type; + p->u.s_extended_builtin.arg = arg; + } + return p; +} + /* Add a new operator component. */ static struct demangle_component * @@ -2464,6 +2484,7 @@ cplus_demangle_builtin_types[D_BUILTIN_T /* 32 */ { NL ("char32_t"), NL ("char32_t"), D_PRINT_DEFAULT }, /* 33 */ { NL ("decltype(nullptr)"), NL ("decltype(nullptr)"), D_PRINT_DEFAULT }, + /* 34 */ { NL ("_Float"), NL ("_Float"), D_PRINT_FLOAT }, }; CP_STATIC_IF_GLIBCPP_V3 @@ -2727,19 +2748,22 @@ cplus_demangle_type (struct d_info *di) break; case 'F': - /* Fixed point types. DF */ - ret = d_make_empty (di); - ret->type = DEMANGLE_COMPONENT_FIXED_TYPE; - if ((ret->u.s_fixed.accum = IS_DIGIT (d_peek_char (di)))) - /* For demangling we don't care about the bits. */ - d_number (di); - ret->u.s_fixed.length = cplus_demangle_type (di); - if (ret->u.s_fixed.length == NULL) - return NULL; - d_number (di); - peek = d_next_char (di); - ret->u.s_fixed.sat = (peek == 's'); - break; + /* DF_ - _Float. */ + { + int arg = d_number (di); + char buf[12]; + if (d_peek_char (di) != '_') + return NULL; + ret + = d_make_extended_builtin_type (di, + &cplus_demangle_builtin_types[34], + arg); + d_advance (di, 1); + sprintf (buf, "%d", arg); + di->expansion += ret->u.s_extended_builtin.type->len + + strlen (buf); + break; + } case 'v': ret = d_vector_type (di); @@ -4202,6 +4226,7 @@ d_count_templates_scopes (struct d_print case DEMANGLE_COMPONENT_FUNCTION_PARAM: case DEMANGLE_COMPONENT_SUB_STD: case DEMANGLE_COMPONENT_BUILTIN_TYPE: + case DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE: case DEMANGLE_COMPONENT_OPERATOR: case DEMANGLE_COMPONENT_CHARACTER: case DEMANGLE_COMPONENT_NUMBER: @@ -4210,6 +4235,7 @@ d_count_templates_scopes (struct d_print case DEMANGLE_COMPONENT_MODULE_NAME: case DEMANGLE_COMPONENT_MODULE_PARTITION: case DEMANGLE_COMPONENT_MODULE_INIT: + case DEMANGLE_COMPONENT_FIXED_TYPE: break; case DEMANGLE_COMPONENT_TEMPLATE: @@ -4309,10 +4335,6 @@ d_count_templates_scopes (struct d_print d_count_templates_scopes (dpi, dc->u.s_extended_operator.name); break; - case DEMANGLE_COMPONENT_FIXED_TYPE: - d_count_templates_scopes (dpi, dc->u.s_fixed.length); - break; - case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS: case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS: case DEMANGLE_COMPONENT_MODULE_ENTITY: @@ -4580,11 +4602,11 @@ d_find_pack (struct d_print_info *dpi, case DEMANGLE_COMPONENT_TAGGED_NAME: case DEMANGLE_COMPONENT_OPERATOR: case DEMANGLE_COMPONENT_BUILTIN_TYPE: + case DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE: case DEMANGLE_COMPONENT_SUB_STD: case DEMANGLE_COMPONENT_CHARACTER: case DEMANGLE_COMPONENT_FUNCTION_PARAM: case DEMANGLE_COMPONENT_UNNAMED_TYPE: - case DEMANGLE_COMPONENT_FIXED_TYPE: case DEMANGLE_COMPONENT_DEFAULT_ARG: case DEMANGLE_COMPONENT_NUMBER: return NULL; @@ -5387,6 +5409,16 @@ d_print_comp_inner (struct d_print_info dc->u.s_builtin.type->java_len); return; + case DEMANGLE_COMPONENT_EXTENDED_BUILTIN_TYPE: + if ((options & DMGL_JAVA) == 0) + d_append_buffer (dpi, dc->u.s_extended_builtin.type->name, + dc->u.s_extended_builtin.type->len); + else + d_append_buffer (dpi, dc->u.s_extended_builtin.type->java_name, + dc->u.s_extended_builtin.type->java_len); + d_append_num (dpi, dc->u.s_extended_builtin.arg); + return; + case DEMANGLE_COMPONENT_VENDOR_TYPE: d_print_comp (dpi, options, d_left (dc)); return; @@ -5525,22 +5557,6 @@ d_print_comp_inner (struct d_print_info return; } - case DEMANGLE_COMPONENT_FIXED_TYPE: - if (dc->u.s_fixed.sat) - d_append_string (dpi, "_Sat "); - /* Don't print "int _Accum". */ - if (dc->u.s_fixed.length->u.s_builtin.type - != &cplus_demangle_builtin_types['i'-'a']) - { - d_print_comp (dpi, options, dc->u.s_fixed.length); - d_append_char (dpi, ' '); - } - if (dc->u.s_fixed.accum) - d_append_string (dpi, "_Accum"); - else - d_append_string (dpi, "_Fract"); - return; - case DEMANGLE_COMPONENT_ARGLIST: case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST: if (d_left (dc) != NULL) --- libiberty/cp-demangle.h.jj 2022-08-26 09:23:37.788064821 +0200 +++ libiberty/cp-demangle.h 2022-09-09 09:52:46.978792113 +0200 @@ -180,7 +180,7 @@ d_advance (struct d_info *di, int i) extern const struct demangle_operator_info cplus_demangle_operators[]; #endif -#define D_BUILTIN_TYPE_COUNT (34) +#define D_BUILTIN_TYPE_COUNT (35) CP_STATIC_IF_GLIBCPP_V3 const struct demangle_builtin_type_info --- libiberty/testsuite/demangle-expected.jj 2022-08-26 09:23:37.788064821 +0200 +++ libiberty/testsuite/demangle-expected 2022-09-09 09:52:46.993791909 +0200 @@ -1242,8 +1242,8 @@ _ZNSt9_Any_data9_M_accessIPZ4postISt8fun post >(std::function&&)::{lambda()#1}*& std::_Any_data::_M_access >(post >(std::function&&)::{lambda()#1}*&&)::{lambda()#1}*>() # --format=auto --no-params -_Z3xxxDFyuVb -xxx(unsigned long long _Fract, bool volatile) +_Z3xxxDF16_DF32_DF64_DF128_CDF16_Vb +xxx(_Float16, _Float32, _Float64, _Float128, _Float16 _Complex, bool volatile) xxx # https://sourceware.org/bugzilla/show_bug.cgi?id=16817 --format=auto --no-params --- fixincludes/inclhack.def.jj 2022-03-01 19:42:39.183264899 +0100 +++ fixincludes/inclhack.def 2022-09-11 20:08:07.787691125 +0200 @@ -2015,6 +2015,102 @@ fix = { EOT; }; +/* glibc-2.27 to 2.36 assume GCC 7 or later supports some or all + * of _Float{16,32,64,128} and _Float{32,64,128}x keywords for C, + * but doesn't for C++. + */ +fix = { + hackname = glibc_cxx_floatn_1; + files = bits/floatn.h, bits/floatn-common.h; + select = "^([ \t]*#[ \t]*if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n" + "(([ \t]*/\\*[^\n]*\\*/\n)?" + "([ \t]*#[ \t]*if[^\n]*\n)?" + "[ \t]*#[ \t]*define __f(16|32|64|128)\\()"; + c_fix = format; + c_fix_arg = "%1(defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__)\n%2"; + test_text = <<-EOT + # if !__GNUC_PREREQ (7, 0) || defined __cplusplus + /* The literal suffix f128 exists only since GCC 7.0. */ + # define __f128(x) x##l + # else + # define __f128(x) x##f128 + # endif + # if !__GNUC_PREREQ (7, 0) || defined __cplusplus + /* The literal suffix (f128) exist for powerpc only since GCC 7.0. */ + # if __LDBL_MANT_DIG__ == 113 + # define __f128(x) x##l + # else + # define __f128(x) x##q + # endif + # else + # define __f128(x) x##f128 + # endif + # if !__GNUC_PREREQ (7, 0) || defined __cplusplus + # ifdef __NO_LONG_DOUBLE_MATH + # define __f64(x) x##l + # else + # define __f64(x) x + # endif + # else + # define __f64(x) x##f64 + # endif + EOT; +}; + +fix = { + hackname = glibc_cxx_floatn_2; + files = bits/floatn.h, bits/floatn-common.h; + select = "^([ \t]*#[ \t]*if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n" + "(([ \t]*/\\*[^\n]*\\*/\n)?" + "[ \t]*typedef[ \t]+[^\n]*[ \t]+_Float(16|32|64|128)([ \t]+__attribute__ \\(\\(__mode__ \\(__HF__\\)\\)\\))?;)"; + c_fix = format; + c_fix_arg = "%1(defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__)\n%2"; + test_text = <<-EOT + # if !__GNUC_PREREQ (7, 0) || defined __cplusplus + typedef float _Float16 __attribute__ ((__mode__ (__HF__))); + # endif + # if !__GNUC_PREREQ (7, 0) || defined __cplusplus + typedef __float128 _Float128; + # endif + EOT; +}; + +fix = { + hackname = glibc_cxx_floatn_3; + files = bits/floatn.h, bits/floatn-common.h; + select = "^([ \t]*#[ \t]*if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n" + "(([ \t]*/\\*[^\n]*\n?[^\n]*\\*/\n)?" + "([ \t]*#[ \t]*if[^\n]*\n)?" + "([ \t]*typedef[ \t]+[^\n]*;\n)?" + "[ \t]*#[ \t]*define __CFLOAT(16|32|64|128)[ \t]+)"; + c_fix = format; + c_fix_arg = "%1(defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__)\n%2"; + test_text = <<-EOT + # if !__GNUC_PREREQ (7, 0) || defined __cplusplus + # define __CFLOAT128 _Complex long double + # else + # define __CFLOAT128 _Complex _Float128 + # endif + # if !__GNUC_PREREQ (7, 0) || defined __cplusplus + /* Add a typedef for older GCC compilers which don't natively support + _Complex _Float128. */ + typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__))); + # define __CFLOAT128 __cfloat128 + # else + # define __CFLOAT128 _Complex _Float128 + # endif + # if !__GNUC_PREREQ (7, 0) || defined __cplusplus + # ifdef __NO_LONG_DOUBLE_MATH + # define __CFLOAT64 _Complex long double + # else + # define __CFLOAT64 _Complex double + # endif + # else + # define __CFLOAT64 _Complex _Float64 + # endif + EOT; +}; + /* glibc-2.3.5 defines pthread mutex initializers incorrectly, * so we replace them with versions that correspond to the * definition. --- fixincludes/tests/base/bits/floatn.h.jj 2022-09-11 20:11:34.991962782 +0200 +++ fixincludes/tests/base/bits/floatn.h 2022-09-11 20:09:48.323368533 +0200 @@ -0,0 +1,74 @@ +/* DO NOT EDIT THIS FILE. + + It has been auto-edited by fixincludes from: + + "fixinc/tests/inc/bits/floatn.h" + + This had to be done to correct non-standard usages in the + original, manufacturer supplied header file. */ + + + +#if defined( GLIBC_CXX_FLOATN_1_CHECK ) +# if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__) +/* The literal suffix f128 exists only since GCC 7.0. */ +# define __f128(x) x##l +# else +# define __f128(x) x##f128 +# endif +# if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__) +/* The literal suffix (f128) exist for powerpc only since GCC 7.0. */ +# if __LDBL_MANT_DIG__ == 113 +# define __f128(x) x##l +# else +# define __f128(x) x##q +# endif +# else +# define __f128(x) x##f128 +# endif +# if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__) +# ifdef __NO_LONG_DOUBLE_MATH +# define __f64(x) x##l +# else +# define __f64(x) x +# endif +# else +# define __f64(x) x##f64 +# endif +#endif /* GLIBC_CXX_FLOATN_1_CHECK */ + + +#if defined( GLIBC_CXX_FLOATN_2_CHECK ) +# if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__) +typedef float _Float16 __attribute__ ((__mode__ (__HF__))); +# endif +# if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__) +typedef __float128 _Float128; +# endif +#endif /* GLIBC_CXX_FLOATN_2_CHECK */ + + +#if defined( GLIBC_CXX_FLOATN_3_CHECK ) +# if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__) +# define __CFLOAT128 _Complex long double +# else +# define __CFLOAT128 _Complex _Float128 +# endif +# if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__) +/* Add a typedef for older GCC compilers which don't natively support + _Complex _Float128. */ +typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__))); +# define __CFLOAT128 __cfloat128 +# else +# define __CFLOAT128 _Complex _Float128 +# endif +# if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__) +# ifdef __NO_LONG_DOUBLE_MATH +# define __CFLOAT64 _Complex long double +# else +# define __CFLOAT64 _Complex double +# endif +# else +# define __CFLOAT64 _Complex _Float64 +# endif +#endif /* GLIBC_CXX_FLOATN_3_CHECK */ --- fixincludes/fixincl.x.jj 2022-03-01 19:42:39.169265091 +0100 +++ fixincludes/fixincl.x 2022-09-11 20:09:37.668565341 +0200 @@ -2,11 +2,11 @@ * * DO NOT EDIT THIS FILE (fixincl.x) * - * It has been AutoGen-ed February 27, 2022 at 07:47:03 PM by AutoGen 5.18.16 + * It has been AutoGen-ed September 11, 2022 at 08:09:37 PM by AutoGen 5.18.16 * From the definitions inclhack.def * and the template file fixincl */ -/* DO NOT SVN-MERGE THIS FILE, EITHER Sun Feb 27 19:47:03 UTC 2022 +/* DO NOT SVN-MERGE THIS FILE, EITHER Sun Sep 11 20:09:37 CEST 2022 * * You must regenerate it. Use the ./genfixes script. * @@ -15,7 +15,7 @@ * certain ANSI-incompatible system header files which are fixed to work * correctly with ANSI C and placed in a directory that GNU C will search. * - * This file contains 267 fixup descriptions. + * This file contains 270 fixup descriptions. * * See README for more information. * @@ -4107,6 +4107,132 @@ static const char* apzGlibc_C99_Inline_4 /* * * * * * * * * * * * * * * * * * * * * * * * * * * + * Description of Glibc_Cxx_Floatn_1 fix + */ +tSCC zGlibc_Cxx_Floatn_1Name[] = + "glibc_cxx_floatn_1"; + +/* + * File name selection pattern + */ +tSCC zGlibc_Cxx_Floatn_1List[] = + "bits/floatn.h\0bits/floatn-common.h\0"; +/* + * Machine/OS name selection pattern + */ +#define apzGlibc_Cxx_Floatn_1Machs (const char**)NULL + +/* + * content selection pattern - do fix if pattern found + */ +tSCC zGlibc_Cxx_Floatn_1Select0[] = + "^([ \t]*#[ \t]*if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n\ +(([ \t]*/\\*[^\n\ +]*\\*/\n\ +)?([ \t]*#[ \t]*if[^\n\ +]*\n\ +)?[ \t]*#[ \t]*define __f(16|32|64|128)\\()"; + +#define GLIBC_CXX_FLOATN_1_TEST_CT 1 +static tTestDesc aGlibc_Cxx_Floatn_1Tests[] = { + { TT_EGREP, zGlibc_Cxx_Floatn_1Select0, (regex_t*)NULL }, }; + +/* + * Fix Command Arguments for Glibc_Cxx_Floatn_1 + */ +static const char* apzGlibc_Cxx_Floatn_1Patch[] = { + "format", + "%1(defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__)\n\ +%2", + (char*)NULL }; + +/* * * * * * * * * * * * * * * * * * * * * * * * * * + * + * Description of Glibc_Cxx_Floatn_2 fix + */ +tSCC zGlibc_Cxx_Floatn_2Name[] = + "glibc_cxx_floatn_2"; + +/* + * File name selection pattern + */ +tSCC zGlibc_Cxx_Floatn_2List[] = + "bits/floatn.h\0bits/floatn-common.h\0"; +/* + * Machine/OS name selection pattern + */ +#define apzGlibc_Cxx_Floatn_2Machs (const char**)NULL + +/* + * content selection pattern - do fix if pattern found + */ +tSCC zGlibc_Cxx_Floatn_2Select0[] = + "^([ \t]*#[ \t]*if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n\ +(([ \t]*/\\*[^\n\ +]*\\*/\n\ +)?[ \t]*typedef[ \t]+[^\n\ +]*[ \t]+_Float(16|32|64|128)([ \t]+__attribute__ \\(\\(__mode__ \\(__HF__\\)\\)\\))?;)"; + +#define GLIBC_CXX_FLOATN_2_TEST_CT 1 +static tTestDesc aGlibc_Cxx_Floatn_2Tests[] = { + { TT_EGREP, zGlibc_Cxx_Floatn_2Select0, (regex_t*)NULL }, }; + +/* + * Fix Command Arguments for Glibc_Cxx_Floatn_2 + */ +static const char* apzGlibc_Cxx_Floatn_2Patch[] = { + "format", + "%1(defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__)\n\ +%2", + (char*)NULL }; + +/* * * * * * * * * * * * * * * * * * * * * * * * * * + * + * Description of Glibc_Cxx_Floatn_3 fix + */ +tSCC zGlibc_Cxx_Floatn_3Name[] = + "glibc_cxx_floatn_3"; + +/* + * File name selection pattern + */ +tSCC zGlibc_Cxx_Floatn_3List[] = + "bits/floatn.h\0bits/floatn-common.h\0"; +/* + * Machine/OS name selection pattern + */ +#define apzGlibc_Cxx_Floatn_3Machs (const char**)NULL + +/* + * content selection pattern - do fix if pattern found + */ +tSCC zGlibc_Cxx_Floatn_3Select0[] = + "^([ \t]*#[ \t]*if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n\ +(([ \t]*/\\*[^\n\ +]*\n\ +?[^\n\ +]*\\*/\n\ +)?([ \t]*#[ \t]*if[^\n\ +]*\n\ +)?([ \t]*typedef[ \t]+[^\n\ +]*;\n\ +)?[ \t]*#[ \t]*define __CFLOAT(16|32|64|128)[ \t]+)"; + +#define GLIBC_CXX_FLOATN_3_TEST_CT 1 +static tTestDesc aGlibc_Cxx_Floatn_3Tests[] = { + { TT_EGREP, zGlibc_Cxx_Floatn_3Select0, (regex_t*)NULL }, }; + +/* + * Fix Command Arguments for Glibc_Cxx_Floatn_3 + */ +static const char* apzGlibc_Cxx_Floatn_3Patch[] = { + "format", + "%1(defined __cplusplus && !__GNUC_PREREQ (13, 1) && defined __FLT32X_MANT_DIG__)\n\ +%2", + (char*)NULL }; + +/* * * * * * * * * * * * * * * * * * * * * * * * * * + * * Description of Glibc_Mutex_Init fix */ tSCC zGlibc_Mutex_InitName[] = @@ -10872,9 +10998,9 @@ static const char* apzX11_SprintfPatch[] * * List of all fixes */ -#define REGEX_COUNT 305 +#define REGEX_COUNT 308 #define MACH_LIST_SIZE_LIMIT 187 -#define FIX_COUNT 267 +#define FIX_COUNT 270 /* * Enumerate the fixes @@ -10977,6 +11103,9 @@ typedef enum { GLIBC_C99_INLINE_2_FIXIDX, GLIBC_C99_INLINE_3_FIXIDX, GLIBC_C99_INLINE_4_FIXIDX, + GLIBC_CXX_FLOATN_1_FIXIDX, + GLIBC_CXX_FLOATN_2_FIXIDX, + GLIBC_CXX_FLOATN_3_FIXIDX, GLIBC_MUTEX_INIT_FIXIDX, GLIBC_STDINT_FIXIDX, GLIBC_STRNCPY_FIXIDX, @@ -11635,6 +11764,21 @@ tFixDesc fixDescList[ FIX_COUNT ] = { GLIBC_C99_INLINE_4_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE, aGlibc_C99_Inline_4Tests, apzGlibc_C99_Inline_4Patch, 0 }, + { zGlibc_Cxx_Floatn_1Name, zGlibc_Cxx_Floatn_1List, + apzGlibc_Cxx_Floatn_1Machs, + GLIBC_CXX_FLOATN_1_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE, + aGlibc_Cxx_Floatn_1Tests, apzGlibc_Cxx_Floatn_1Patch, 0 }, + + { zGlibc_Cxx_Floatn_2Name, zGlibc_Cxx_Floatn_2List, + apzGlibc_Cxx_Floatn_2Machs, + GLIBC_CXX_FLOATN_2_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE, + aGlibc_Cxx_Floatn_2Tests, apzGlibc_Cxx_Floatn_2Patch, 0 }, + + { zGlibc_Cxx_Floatn_3Name, zGlibc_Cxx_Floatn_3List, + apzGlibc_Cxx_Floatn_3Machs, + GLIBC_CXX_FLOATN_3_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE, + aGlibc_Cxx_Floatn_3Tests, apzGlibc_Cxx_Floatn_3Patch, 0 }, + { zGlibc_Mutex_InitName, zGlibc_Mutex_InitList, apzGlibc_Mutex_InitMachs, GLIBC_MUTEX_INIT_TEST_CT, FD_MACH_ONLY,