[llvm-commits] [llvm] r98442 - /llvm/trunk/lib/MC/MCParser/AsmLexer.cpp

[Chris Lattner]

Author: lattner
Date: Sat Mar 13 13:25:13 2010
New Revision: 98442

URL: http://llvm.org/viewvc/llvm-project?rev=98442&view=rev
Log:
add a hack to allow parsing negative minint. rdar://7751341

Modified:
    llvm/trunk/lib/MC/MCParser/AsmLexer.cpp

Modified: llvm/trunk/lib/MC/MCParser/AsmLexer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCParser/AsmLexer.cpp?rev=98442&r1=98441&r2=98442&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCParser/AsmLexer.cpp (original)
+++ llvm/trunk/lib/MC/MCParser/AsmLexer.cpp Sat Mar 13 13:25:13 2010
@@ -140,8 +140,14 @@
     StringRef Result(TokStart, CurPtr - TokStart);
     
     long long Value;
-    if (Result.getAsInteger(10, Value))
-      return ReturnError(TokStart, "Invalid decimal number");
+    if (Result.getAsInteger(10, Value)) {
+      // We have to handle minint_as_a_positive_value specially, because
+      // - minint_as_a_positive_value = minint and it is valid.
+      if (Result == "9223372036854775808")
+        Value = -9223372036854775808ULL;
+      else
+        return ReturnError(TokStart, "Invalid decimal number");
+    }
     return AsmToken(AsmToken::Integer, Result, Value);
   }