Added llvm-mc support for parsing the .include directive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75711 91177308-0d34-0410-b5e6-96231b3b80d8

tools/llvm-mc/AsmParser.cpp

@@ -535,6 +535,8 @@ bool AsmParser::ParseStatement() {
       return ParseDirectiveDarwinSubsectionsViaSymbols();
     if (!strcmp(IDVal, ".abort"))
       return ParseDirectiveAbort();
+    if (!strcmp(IDVal, ".include"))
+      return ParseDirectiveInclude();
 
     Warning(IDLoc, "ignoring directive for now");
     EatToEndOfStatement();
@@ -1158,3 +1160,25 @@ bool AsmParser::ParseDirectiveDarwinLsym() {
 
   return false;
 }
+
+/// ParseDirectiveInclude
+///  ::= .include "filename"
+bool AsmParser::ParseDirectiveInclude() {
+  const char *Str;
+
+  if (Lexer.isNot(asmtok::String))
+    return TokError("expected string in '.include' directive");
+  
+  Str = Lexer.getCurStrVal();
+
+  Lexer.Lex();
+
+  if (Lexer.isNot(asmtok::EndOfStatement))
+    return TokError("unexpected token in '.include' directive");
+  
+  Lexer.Lex();
+
+  Out.SwitchInputAssemblyFile(Str);
+
+  return false;
+}

tools/llvm-mc/AsmParser.h

@@ -119,6 +119,7 @@ private:
   bool ParseDirectiveDarwinSubsectionsViaSymbols();
 
   bool ParseDirectiveAbort(); // ".abort"
+  bool ParseDirectiveInclude(); // ".include"
 };
 
 } // end namespace llvm