Subzero: Update for LLVM 3.9 (trunk).

src/IceInst.h

Index: src/IceInst.h
diff --git a/src/IceInst.h b/src/IceInst.h
index 352a5d47ea5ce5e780346cd3fd886f243eb1468c..36b8810a82bcbf0390e66283285f6cde91763239 100644
--- a/src/IceInst.h
+++ b/src/IceInst.h
@@ -1131,4 +1131,22 @@ private:
 
 } // end of namespace llvm
 
+namespace Ice {
+
+inline InstList::iterator instToIterator(Inst *Instr) {
+#ifdef PNACL_LLVM
+  return Instr;
+#else  // !PNACL_LLVM
+  return Instr->getIterator();
+#endif // !PNACL_LLVM
+}
+
+inline Inst *iteratorToInst(InstList::iterator Iter) { return &*Iter; }
+
+inline const Inst *iteratorToInst(InstList::const_iterator Iter) {
+  return &*Iter;
+}
+
+} // end of namespace Ice
+
 #endif // SUBZERO_SRC_ICEINST_H