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release/20.x: [clang-repl] Ensure clang-repl accepts all C keywords supported in all language models (#142749) #142909

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release/20.x: [clang-repl] Ensure clang-repl accepts all C keywords supported in all language models (#142749) #142909

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2 changes: 2 additions & 0 deletions clang/lib/Parse/ParseTentative.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1504,6 +1504,7 @@ Parser::isCXXDeclarationSpecifier(ImplicitTypenameContext AllowImplicitTypename,
case tok::kw_inline:
case tok::kw_virtual:
case tok::kw_explicit:
case tok::kw__Noreturn:

// Modules
case tok::kw___module_private__:
Expand Down Expand Up @@ -1558,6 +1559,7 @@ Parser::isCXXDeclarationSpecifier(ImplicitTypenameContext AllowImplicitTypename,
// GNU
case tok::kw_restrict:
case tok::kw__Complex:
case tok::kw__Imaginary:
case tok::kw___attribute:
case tok::kw___auto_type:
return TPResult::True;
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13 changes: 13 additions & 0 deletions clang/test/Interpreter/disambiguate-decl-stmt.cpp
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Expand Up @@ -102,3 +102,16 @@ __attribute((noreturn)) Attrs2::Attrs2() = default;

// Extra semicolon
namespace N {};

// Test C keywords supported in all language modes.
// https://clang.llvm.org/docs/LanguageExtensions.html#c-keywords-supported-in-all-language-modes

_Alignas(16) int aligned_var;
int align = _Alignof(double);
_Atomic int atomic_var = 0;
_Complex double complex_val = 1.0 + 2.0i;
_Float16 f = 1.5;
_Thread_local int counter = 0;
_Static_assert(sizeof(int) == 4, "int must be 4 bytes");
_Imaginary float i = 2.0f; // expected-error {{imaginary types are not supported}}
_Noreturn void noreturn_func() { while (true) {} }
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