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-rw-r--r--clang/include/clang/Basic/DiagnosticLexKinds.td2
-rw-r--r--clang/lib/Lex/PPDirectives.cpp11
-rw-r--r--clang/test/Parser/MicrosoftExtensions.cpp3
-rw-r--r--clang/test/Preprocessor/cxx_oper_keyword_ms_compat.cpp3
4 files changed, 13 insertions, 6 deletions
diff --git a/clang/include/clang/Basic/DiagnosticLexKinds.td b/clang/include/clang/Basic/DiagnosticLexKinds.td
index 01f56089d94..a32b9025c1d 100644
--- a/clang/include/clang/Basic/DiagnosticLexKinds.td
+++ b/clang/include/clang/Basic/DiagnosticLexKinds.td
@@ -501,6 +501,8 @@ def ext_pp_bad_paste_ms : ExtWarn<
InGroup<DiagGroup<"invalid-token-paste">>;
def err_pp_operator_used_as_macro_name : Error<
"C++ operator %0 (aka %1) used as a macro name">;
+def ext_pp_operator_used_as_macro_name : Extension<
+ "C++ operator %0 (aka %1) used as a macro name">, InGroup<Microsoft>;
def err_pp_illegal_floating_literal : Error<
"floating point literal in preprocessor expression">;
def err_pp_line_requires_integer : Error<
diff --git a/clang/lib/Lex/PPDirectives.cpp b/clang/lib/Lex/PPDirectives.cpp
index 46e8f07c510..a8dde086baf 100644
--- a/clang/lib/Lex/PPDirectives.cpp
+++ b/clang/lib/Lex/PPDirectives.cpp
@@ -145,11 +145,12 @@ bool Preprocessor::CheckMacroName(Token &MacroNameTok, char isDefineUndef) {
if (!II->isCPlusPlusOperatorKeyword())
return Diag(MacroNameTok, diag::err_pp_macro_not_identifier);
- if (!getLangOpts().MSVCCompat)
- // C++ 2.5p2: Alternative tokens behave the same as its primary token
- // except for their spellings.
- Diag(MacroNameTok, diag::err_pp_operator_used_as_macro_name)
- << II << MacroNameTok.getKind();
+ // C++ 2.5p2: Alternative tokens behave the same as its primary token
+ // except for their spellings.
+ Diag(MacroNameTok, getLangOpts().MicrosoftExt
+ ? diag::ext_pp_operator_used_as_macro_name
+ : diag::err_pp_operator_used_as_macro_name)
+ << II << MacroNameTok.getKind();
// Allow #defining |and| and friends for Microsoft compatibility or
// recovery when legacy C headers are included in C++.
diff --git a/clang/test/Parser/MicrosoftExtensions.cpp b/clang/test/Parser/MicrosoftExtensions.cpp
index 5f3c2a26fc0..72d6c2ed58c 100644
--- a/clang/test/Parser/MicrosoftExtensions.cpp
+++ b/clang/test/Parser/MicrosoftExtensions.cpp
@@ -426,3 +426,6 @@ void TestProperty() {
sp.V11++;
++sp.V11;
}
+
+//expected-warning@+1 {{C++ operator 'and' (aka '&&') used as a macro name}}
+#define and foo
diff --git a/clang/test/Preprocessor/cxx_oper_keyword_ms_compat.cpp b/clang/test/Preprocessor/cxx_oper_keyword_ms_compat.cpp
index dcf6908c329..8e1351e3472 100644
--- a/clang/test/Preprocessor/cxx_oper_keyword_ms_compat.cpp
+++ b/clang/test/Preprocessor/cxx_oper_keyword_ms_compat.cpp
@@ -1,4 +1,5 @@
-// RUN: %clang_cc1 %s -E -fms-compatibility
+// RUN: %clang_cc1 %s -E -verify -fms-extensions
+// expected-no-diagnostics
bool f() {
// Check that operators still work before redefining them.
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