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-rw-r--r--clang/lib/Lex/Preprocessor.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/clang/lib/Lex/Preprocessor.cpp b/clang/lib/Lex/Preprocessor.cpp
index a43bb6427e9..9eaf1403a2d 100644
--- a/clang/lib/Lex/Preprocessor.cpp
+++ b/clang/lib/Lex/Preprocessor.cpp
@@ -547,6 +547,11 @@ static void InitializePredefinedMacros(Preprocessor &PP,
DefineBuiltinMacro(Buf, "__int64=__INT64_TYPE__");
}
+ if (PP.getLangOptions().Optimize)
+ DefineBuiltinMacro(Buf, "__OPTIMIZE__=1");
+ if (PP.getLangOptions().OptimizeSize)
+ DefineBuiltinMacro(Buf, "__OPTIMIZE_SIZE__=1");
+
// Initialize target-specific preprocessor defines.
const TargetInfo &TI = PP.getTargetInfo();
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