From 1ef1e91142ac48ecb826f33e1e7072c7402d9fe7 Mon Sep 17 00:00:00 2001 From: serge-sans-paille Date: Wed, 3 Mar 2021 09:58:31 +0100 Subject: [PATCH 6/6] [PATCH][clang] Allow __ieee128 as an alias to __float128 on ppc This matches gcc behavior. Differential Revision: https://reviews.llvm.org/D97846 (cherry picked from commit 4aa510be78a75a4da82657fe433016f00dad0784) --- include/Basic/LangOptions.def | 1 + lib/Basic/IdentifierTable.cpp | 3 +++ lib/Basic/Targets/PPC.cpp | 1 + test/Sema/128bitfloat.cpp | 7 +++++++ 4 files changed, 12 insertions(+) diff --git a/include/clang/Basic/LangOptions.def b/include/clang/Basic/LangOptions.def index c01f0cc..3c22393e 100644 --- a/include/clang/Basic/LangOptions.def +++ b/include/clang/Basic/LangOptions.def @@ -107,6 +107,7 @@ LANGOPT(Bool , 1, 0, "bool, true, and false keywords") LANGOPT(Half , 1, 0, "half keyword") LANGOPT(WChar , 1, CPlusPlus, "wchar_t keyword") LANGOPT(Char8 , 1, 0, "char8_t keyword") +LANGOPT(IEEE128 , 1, 0, "__ieee128 keyword") LANGOPT(DeclSpecKeyword , 1, 0, "__declspec keyword") BENIGN_LANGOPT(DollarIdents , 1, 1, "'$' in identifiers") BENIGN_LANGOPT(AsmPreprocessor, 1, 0, "preprocessor in asm mode") diff --git a/lib/Basic/IdentifierTable.cpp b/lib/Basic/IdentifierTable.cpp index 51c6e02..cedc94a 100644 --- a/lib/Basic/IdentifierTable.cpp +++ b/lib/Basic/IdentifierTable.cpp @@ -227,6 +227,9 @@ void IdentifierTable::AddKeywords(const LangOptions &LangOpts) { if (LangOpts.DeclSpecKeyword) AddKeyword("__declspec", tok::kw___declspec, KEYALL, LangOpts, *this); + if (LangOpts.IEEE128) + AddKeyword("__ieee128", tok::kw___float128, KEYALL, LangOpts, *this); + // Add the 'import' contextual keyword. get("import").setModulesImport(true); } diff --git a/lib/Basic/Targets/PPC.cpp b/lib/Basic/Targets/PPC.cpp index ff09c0f..38f286c 100644 --- a/lib/Basic/Targets/PPC.cpp +++ b/lib/Basic/Targets/PPC.cpp @@ -551,6 +551,7 @@ void PPCTargetInfo::adjust(LangOptions &Opts) { LongDoubleFormat = Opts.PPCIEEELongDouble ? &llvm::APFloat::IEEEquad() : &llvm::APFloat::PPCDoubleDouble(); + Opts.IEEE128 = 1; } ArrayRef PPCTargetInfo::getTargetBuiltins() const { diff --git a/test/Sema/128bitfloat.cpp b/test/Sema/128bitfloat.cpp index 4a826b4..6a9ae74 100644 --- a/test/Sema/128bitfloat.cpp +++ b/test/Sema/128bitfloat.cpp @@ -6,6 +6,13 @@ // RUN: %clang_cc1 -triple x86_64-windows-msvc -verify -std=c++11 %s #if defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__) + +#if defined(__ppc__) +template struct __is_float128 { static constexpr bool value = false; }; +template <> struct __is_float128<__float128> { static constexpr bool value = true; }; +static_assert(__is_float128<__ieee128>::value, "__ieee128 aliases to __float128"); +#endif + __float128 f; template struct __is_floating_point_helper {}; template<> struct __is_floating_point_helper<__float128> {}; -- 1.8.3.1