76 lines
3.1 KiB
Diff
76 lines
3.1 KiB
Diff
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From 7e0b36755d9bcccaddd1c4c1c69b1f12b729cf4e Mon Sep 17 00:00:00 2001
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From: serge-sans-paille <sguelton@redhat.com>
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Date: Mon, 15 Mar 2021 09:28:48 +0100
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Subject: [PATCH 7/7] [PATCH][clang] Allow __ieee128 as an alias to __float128
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on ppc
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This matches gcc behavior.
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Backported from https://reviews.llvm.org/D97846
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---
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clang/include/clang/Basic/LangOptions.def | 1 +
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clang/lib/Basic/IdentifierTable.cpp | 3 +++
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clang/lib/Basic/Targets/PPC.cpp | 1 +
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clang/test/Sema/128bitfloat.cpp | 7 +++++++
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4 files changed, 12 insertions(+)
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diff --git a/clang/include/clang/Basic/LangOptions.def b/clang/include/clang/Basic/LangOptions.def
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index c01f0cc..3c22393e 100644
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--- a/clang/include/clang/Basic/LangOptions.def
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+++ b/clang/include/clang/Basic/LangOptions.def
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@@ -107,6 +107,7 @@ LANGOPT(Bool , 1, 0, "bool, true, and false keywords")
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LANGOPT(Half , 1, 0, "half keyword")
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LANGOPT(WChar , 1, CPlusPlus, "wchar_t keyword")
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LANGOPT(Char8 , 1, 0, "char8_t keyword")
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+LANGOPT(IEEE128 , 1, 0, "__ieee128 keyword")
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LANGOPT(DeclSpecKeyword , 1, 0, "__declspec keyword")
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BENIGN_LANGOPT(DollarIdents , 1, 1, "'$' in identifiers")
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BENIGN_LANGOPT(AsmPreprocessor, 1, 0, "preprocessor in asm mode")
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diff --git a/clang/lib/Basic/IdentifierTable.cpp b/clang/lib/Basic/IdentifierTable.cpp
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index 51c6e02..cedc94a 100644
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--- a/clang/lib/Basic/IdentifierTable.cpp
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+++ b/clang/lib/Basic/IdentifierTable.cpp
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@@ -227,6 +227,9 @@ void IdentifierTable::AddKeywords(const LangOptions &LangOpts) {
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if (LangOpts.DeclSpecKeyword)
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AddKeyword("__declspec", tok::kw___declspec, KEYALL, LangOpts, *this);
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+ if (LangOpts.IEEE128)
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+ AddKeyword("__ieee128", tok::kw___float128, KEYALL, LangOpts, *this);
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+
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// Add the 'import' contextual keyword.
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get("import").setModulesImport(true);
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}
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diff --git a/clang/lib/Basic/Targets/PPC.cpp b/clang/lib/Basic/Targets/PPC.cpp
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index ff09c0f..38f286c 100644
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--- a/clang/lib/Basic/Targets/PPC.cpp
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+++ b/clang/lib/Basic/Targets/PPC.cpp
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@@ -551,6 +551,7 @@ void PPCTargetInfo::adjust(LangOptions &Opts) {
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LongDoubleFormat = Opts.PPCIEEELongDouble
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? &llvm::APFloat::IEEEquad()
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: &llvm::APFloat::PPCDoubleDouble();
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+ Opts.IEEE128 = 1;
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}
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ArrayRef<Builtin::Info> PPCTargetInfo::getTargetBuiltins() const {
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diff --git a/clang/test/Sema/128bitfloat.cpp b/clang/test/Sema/128bitfloat.cpp
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index 4a826b4..6a9ae74 100644
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--- a/clang/test/Sema/128bitfloat.cpp
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+++ b/clang/test/Sema/128bitfloat.cpp
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@@ -6,6 +6,13 @@
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// RUN: %clang_cc1 -triple x86_64-windows-msvc -verify -std=c++11 %s
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#if defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__)
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+
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+#if defined(__ppc__)
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+template <typename> struct __is_float128 { static constexpr bool value = false; };
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+template <> struct __is_float128<__float128> { static constexpr bool value = true; };
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+static_assert(__is_float128<__ieee128>::value, "__ieee128 aliases to __float128");
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+#endif
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+
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__float128 f;
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template<typename> struct __is_floating_point_helper {};
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template<> struct __is_floating_point_helper<__float128> {};
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--
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1.8.3.1
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