Fast-math comments and convenience method

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168811 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/include/llvm/Operator.h b/include/llvm/Operator.h
index beea034bca..289df4e848 100644
--- a/include/llvm/Operator.h
+++ b/include/llvm/Operator.h
@@ -176,10 +176,16 @@ struct FastMathFlags {
                     NoSignedZeros(false), AllowReciprocal(false)
   { }
 
+  /// Whether any flag is set
   bool any() {
     return UnsafeAlgebra || NoNaNs || NoInfs || NoSignedZeros ||
       AllowReciprocal;
   }
+
+  /// Set all the flags to false
+  void clear() {
+    UnsafeAlgebra = NoNaNs = NoInfs = NoSignedZeros = AllowReciprocal = false;
+  }
 };