diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h
index 8f7b387a111..90d78369721 100644
--- a/lib/Target/X86/X86ISelLowering.h
+++ b/lib/Target/X86/X86ISelLowering.h
@@ -514,6 +514,16 @@ namespace llvm {
     /// own arguments. Callee pop is necessary to support tail calls.
     bool isCalleePop(CallingConv::ID CallingConv,
                      bool is64Bit, bool IsVarArg, bool TailCallOpt);
+
+    /// AVX512 static rounding constants.  These need to match the values in
+    /// avx512fintrin.h.
+    enum STATIC_ROUNDING {
+      TO_NEAREST_INT = 0,
+      TO_NEG_INF = 1,
+      TO_POS_INF = 2,
+      TO_ZERO = 3,
+      CUR_DIRECTION = 4
+    };
   }
 
   //===--------------------------------------------------------------------===//
diff --git a/lib/Target/X86/X86InstrFragmentsSIMD.td b/lib/Target/X86/X86InstrFragmentsSIMD.td
index d94dcee6f62..79379ad33a9 100644
--- a/lib/Target/X86/X86InstrFragmentsSIMD.td
+++ b/lib/Target/X86/X86InstrFragmentsSIMD.td
@@ -512,7 +512,9 @@ def I8Imm : SDNodeXForm<imm, [{
 }]>;
 
 def FROUND_NO_EXC : ImmLeaf<i32, [{ return Imm == 8; }]>;
-def FROUND_CURRENT : ImmLeaf<i32, [{ return Imm == 4; }]>;
+def FROUND_CURRENT : ImmLeaf<i32, [{
+  return Imm == X86::STATIC_ROUNDING::CUR_DIRECTION;
+}]>;
 
 // BYTE_imm - Transform bit immediates into byte immediates.
 def BYTE_imm  : SDNodeXForm<imm, [{