Remove cache for macro arg stringization

Summary:
The cache recorded the wrong expansion location for all but the first
stringization. It seems uncommon to stringize the same macro argument
multiple times, so this cache doesn't seem that important.

Fixes PR39942

Reviewers: vsk, rsmith

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D65428

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@367337 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 10 deletions

diff --git a/include/clang/Lex/MacroArgs.h b/include/clang/Lex/MacroArgs.h
index 8806f2d8c6..59676c30e0 100644
--- a/include/clang/Lex/MacroArgs.h
+++ b/include/clang/Lex/MacroArgs.h
@@ -48,10 +48,6 @@ class MacroArgs final
   /// stream.
   std::vector<std::vector<Token> > PreExpArgTokens;
 
-  /// StringifiedArgs - This contains arguments in 'stringified' form.  If the
-  /// stringified form of an argument has not yet been computed, this is empty.
-  std::vector<Token> StringifiedArgs;
-
   /// ArgCache - This is a linked list of MacroArgs objects that the
   /// Preprocessor owns which we use to avoid thrashing malloc/free.
   MacroArgs *ArgCache;
@@ -94,12 +90,6 @@ public:
   const std::vector<Token> &
     getPreExpArgument(unsigned Arg, Preprocessor &PP);
 
-  /// getStringifiedArgument - Compute, cache, and return the specified argument
-  /// that has been 'stringified' as required by the # operator.
-  const Token &getStringifiedArgument(unsigned ArgNo, Preprocessor &PP,
-                                      SourceLocation ExpansionLocStart,
-                                      SourceLocation ExpansionLocEnd);
-
   /// getNumMacroArguments - Return the number of arguments the invoked macro
   /// expects.
   unsigned getNumMacroArguments() const { return NumMacroArgs; }