don't depend on the cfg being set up yet


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20936 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelPattern.cpp b/lib/Target/X86/X86ISelPattern.cpp
index d989d3e..5d91fe4 100644
--- a/lib/Target/X86/X86ISelPattern.cpp
+++ b/lib/Target/X86/X86ISelPattern.cpp
@@ -444,7 +444,7 @@
   // basic blocks.  This will be a huge win, but we are waiting on the global
   // allocators before we can do this.
   //
-  if (ContainsFPCode && BB->succ_size()) {
+  if (ContainsFPCode) {
     BuildMI(*BB, BB->getFirstTerminator(), X86::FP_REG_KILL, 0);
     ++NumFPKill;
   }