Remove support for the special 'fast' value for fpmath accuracy for the moment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154850 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 4 insertions, 18 deletions

diff --git a/include/llvm/Operator.h b/include/llvm/Operator.h
index 6bd7e56..1e86980 100644
--- a/include/llvm/Operator.h
+++ b/include/llvm/Operator.h
@@ -174,13 +174,9 @@ public:
 
   /// \brief Get the maximum error permitted by this operation in ULPs.  An
   /// accuracy of 0.0 means that the operation should be performed with the
-  /// default precision.  A huge value is returned if the accuracy is 'fast'.
+  /// default precision.
   float getFPAccuracy() const;
 
-  /// \brief Return true if the accuracy is 'fast'.  This indicates that speed
-  /// is more important than accuracy.
-  bool isFastFPAccuracy() const;
-
   static inline bool classof(const FPMathOperator *) { return true; }
   static inline bool classof(const Instruction *I) {
     return I->getType()->isFPOrFPVectorTy();
diff --git a/include/llvm/Support/MDBuilder.h b/include/llvm/Support/MDBuilder.h
index f6d8452..40f028a 100644
--- a/include/llvm/Support/MDBuilder.h
+++ b/include/llvm/Support/MDBuilder.h
@@ -26,9 +26,6 @@ namespace llvm {
   class MDBuilder {
     LLVMContext &Context;
 
-    MDString *getFastString() {
-      return createString("fast");
-    }
   public:
     MDBuilder(LLVMContext &context) : Context(context) {}
 
@@ -41,19 +38,12 @@ namespace llvm {
     // FPMath metadata.
     //===------------------------------------------------------------------===//
 
-    /// \brief Return metadata with appropriate settings for 'fast math'.
-    MDNode *createFastFPMath() {
-      return MDNode::get(Context, getFastString());
-    }
-
-    /// \brief Return metadata with the given settings.  Special values for the
-    /// Accuracy parameter are 0.0, which means the default (maximal precision)
-    /// setting; and negative values which all mean 'fast'.
+    /// \brief Return metadata with the given settings.  The special value 0.0
+    /// for the Accuracy parameter indicates the default (maximal precision)
+    /// setting.
     MDNode *createFPMath(float Accuracy) {
       if (Accuracy == 0.0)
         return 0;
-      if (Accuracy < 0.0)
-        return MDNode::get(Context, getFastString());
       assert(Accuracy > 0.0 && "Invalid fpmath accuracy!");
       Value *Op = ConstantFP::get(Type::getFloatTy(Context), Accuracy);
       return MDNode::get(Context, Op);