Index: docs/LangRef.rst
===================================================================
--- docs/LangRef.rst
+++ docs/LangRef.rst
@@ -4510,8 +4510,8 @@
     distance between the two non-equal finite floating-point numbers
     nearest ``x``. Moreover, ``ulp(NaN)`` is ``NaN``.
 
-The metadata node shall consist of a single positive floating point
-number representing the maximum relative error, for example:
+The metadata node shall consist of a single positive float type number
+representing the maximum relative error, for example:
 
 .. code-block:: llvm
 
Index: lib/IR/Verifier.cpp
===================================================================
--- lib/IR/Verifier.cpp
+++ lib/IR/Verifier.cpp
@@ -3668,6 +3668,8 @@
     if (ConstantFP *CFP0 =
             mdconst::dyn_extract_or_null<ConstantFP>(MD->getOperand(0))) {
       const APFloat &Accuracy = CFP0->getValueAPF();
+      Assert(&Accuracy.getSemantics() == &APFloat::IEEEsingle,
+             "fpmath accuracy must have float type", &I);
       Assert(Accuracy.isFiniteNonZero() && !Accuracy.isNegative(),
              "fpmath accuracy not a positive number!", &I);
     } else {
Index: test/Verifier/fpmath.ll
===================================================================
--- test/Verifier/fpmath.ll
+++ test/Verifier/fpmath.ll
@@ -19,6 +19,8 @@
 ; CHECK: fpmath accuracy not a positive number!
   %z = fadd float %f, %f, !fpmath !6
 ; CHECK: fpmath accuracy not a positive number!
+  %double.fpmath = fadd float %f, %f, !fpmath !7
+; CHECK: fpmath accuracy must have float type
   ret void
 }
 
@@ -29,3 +31,4 @@
 !4 = !{ float -1.0 }
 !5 = !{ float 0.0 }
 !6 = !{ float 0x7FFFFFFF00000000 }
+!7 = !{ double 1.0 }