Add support for macro parameters/arguments delimited by spaces,

to improve compatibility with GNU as.

Based on a patch by PaX Team.

Fixed assertion failures on non-Darwin and added additional test cases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164248 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/MC/MCParser/MCAsmLexer.h

@@ -40,6 +40,7 @@ public:
     // No-value.
     EndOfStatement,
     Colon,
+    Space,
     Plus, Minus, Tilde,
     Slash,    // '/'
     BackSlash, // '\'
@@ -126,6 +127,7 @@ class MCAsmLexer {
   void operator=(const MCAsmLexer &) LLVM_DELETED_FUNCTION;
 protected: // Can only create subclasses.
   const char *TokStart;
+  bool SkipSpace;
 
   MCAsmLexer();
 
@@ -175,6 +177,9 @@ public:
 
   /// isNot - Check if the current token has kind \p K.
   bool isNot(AsmToken::TokenKind K) const { return CurTok.isNot(K); }
+
+  /// setSkipSpace - Set whether spaces should be ignored by the lexer
+  void setSkipSpace(bool val) { SkipSpace = val; }
 };
 
 } // End llvm namespace