Allow loading holes from holey smi arrays

src/ppc/lithium-codegen-ppc.cc

Index: src/ppc/lithium-codegen-ppc.cc
diff --git a/src/ppc/lithium-codegen-ppc.cc b/src/ppc/lithium-codegen-ppc.cc
index dd6ada11c3e21e8b4d206223c4d1fc439bb1e938..17232c76cf9a04b1035ebded633aeab2bcc6613f 100644
--- a/src/ppc/lithium-codegen-ppc.cc
+++ b/src/ppc/lithium-codegen-ppc.cc
@@ -3495,7 +3495,8 @@ void LCodeGen::DoLoadKeyedFixedArray(LLoadKeyed* instr) {
       DeoptimizeIf(eq, instr, Deoptimizer::kHole);
     }
   } else if (instr->hydrogen()->hole_mode() == CONVERT_HOLE_TO_UNDEFINED) {
-    DCHECK(instr->hydrogen()->elements_kind() == FAST_HOLEY_ELEMENTS);
+    DCHECK(instr->hydrogen()->elements_kind() == FAST_HOLEY_SMI_ELEMENTS ||
+           instr->hydrogen()->elements_kind() == FAST_HOLEY_ELEMENTS);
     Label done;
     __ LoadRoot(scratch, Heap::kTheHoleValueRootIndex);
     __ cmp(result, scratch);