diff --git a/compiler/utils/x86/assembler_x86.cc b/compiler/utils/x86/assembler_x86.cc
index 51cc7ac..329698c 100644
--- a/compiler/utils/x86/assembler_x86.cc
+++ b/compiler/utils/x86/assembler_x86.cc
@@ -883,6 +883,13 @@
 }
 
 
+void X86Assembler::filds(const Address& src) {
+  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
+  EmitUint8(0xDB);
+  EmitOperand(0, src);
+}
+
+
 void X86Assembler::fincstp() {
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
   EmitUint8(0xD9);