remove some ops that are not yet defined in LLVM 15

Author: vchuravy

lib/Dialect/OpDescription.cpp

@@ -145,25 +145,37 @@ template <> const OpDescription &OpDescription::get<BinaryOperator>() {
 // ============================================================================
 // Descriptions of intrinsic facades implemented in LLVM
 
+
+#if HAVE_LLVM_VERSION_MAJOR >= 16
 HANDLE_INTRINSIC_DESC_OPCODE_SET(LifetimeIntrinsic, Intrinsic::lifetime_start,
                                  Intrinsic::lifetime_end)
+#endif
 
 // Add Intrinsic::dbg_addr back for sufficiently recent LLVM
 HANDLE_INTRINSIC_DESC_OPCODE_SET(DbgInfoIntrinsic, Intrinsic::dbg_declare,
-                                 Intrinsic::dbg_value, Intrinsic::dbg_label,
-                                 Intrinsic::dbg_assign)
+                                 Intrinsic::dbg_value, Intrinsic::dbg_label
+#if HAVE_LLVM_VERSION_MAJOR >= 16
+                                 ,Intrinsic::dbg_assign
+#endif
+                                 )
 
 // Add Intrinsic::dbg_addr back for sufficiently recent LLVM
 HANDLE_INTRINSIC_DESC_OPCODE_SET(DbgVariableIntrinsic, Intrinsic::dbg_declare,
-                                 Intrinsic::dbg_value, Intrinsic::dbg_assign)
+                                 Intrinsic::dbg_value
+#if HAVE_LLVM_VERSION_MAJOR >= 16
+                                 ,Intrinsic::dbg_assign
+#endif
+                                )
 
 HANDLE_INTRINSIC_DESC(DbgDeclareInst, dbg_declare)
 HANDLE_INTRINSIC_DESC(DbgValueInst, dbg_value)
 
 // Add this back for sufficiently recent LLVM
 // HANDLE_INTRINSIC_DESC(DbgAddrIntrinsic, dbg_addr)
 
+#if HAVE_LLVM_VERSION_MAJOR >= 16
 HANDLE_INTRINSIC_DESC(DbgAssignIntrinsic, dbg_assign)
+#endif
 HANDLE_INTRINSIC_DESC(DbgLabelInst, dbg_label)
 
 HANDLE_INTRINSIC_DESC_OPCODE_SET(AtomicMemIntrinsic,