Index: include/llvm/CodeGen/GlobalISel/LegalizerInfo.h
===================================================================
--- include/llvm/CodeGen/GlobalISel/LegalizerInfo.h
+++ include/llvm/CodeGen/GlobalISel/LegalizerInfo.h
@@ -608,6 +608,11 @@
     return actionForCartesianProduct(LegalizeAction::Custom, Types0, Types1);
   }
 
+  /// Unconditionally custom lower.
+  LegalizeRuleSet &custom() {
+    return customIf(always);
+  }
+
   /// Widen the scalar to the next power of two that is at least MinSize.
   /// No effect if the type is not a scalar or is a power of two.
   LegalizeRuleSet &widenScalarToNextPow2(unsigned TypeIdx,