Undefine R2, R4, R6 after use.

llvm-svn: 212179
2014-07-02 14:40:35 +00:00 · 2014-07-02 14:40:35 +00:00 · fd0346880e
parent 678bd5ba4a
commit fd0346880e
1 changed files with 3 additions and 0 deletions
--- a/llvm/include/llvm/Support/MathExtras.h
+++ b/llvm/include/llvm/Support/MathExtras.h
@ -230,6 +230,9 @@ static const unsigned char BitReverseTable256[256] = {
 #define R4(n) R2(n), R2(n + 2 * 16), R2(n + 1 * 16), R2(n + 3 * 16)
 #define R6(n) R4(n), R4(n + 2 * 4), R4(n + 1 * 4), R4(n + 3 * 4)
  R6(0), R6(2), R6(1), R6(3)
+#undef R2
+#undef R4
+#undef R6
 };

 /// \brief Reverse the bits in \p Val.