8269179: Crash in TestMacroLogicVector::testSubWordBoolean: assert(_b…

…ase >= VectorMask && _base <= VectorZ) failed: Not a Vector

Backport-of: a30141d636ff6cfe6a009a5f7422b732081cd2df

src/hotspot/cpu/x86/x86.ad

@@ -5376,7 +5376,7 @@ instruct vpternlog(vec dst, vec src2, vec src3, immU8 func) %{
 %}
 
 instruct vpternlog_mem(vec dst, vec src2, memory src3, immU8 func) %{
-  predicate(vector_length_in_bytes(n->in(1)) > 8);
+  predicate(vector_length_in_bytes(n->in(1)->in(1)) > 8);
   match(Set dst (MacroLogicV (Binary dst src2) (Binary (LoadVector src3) func)));
   effect(TEMP dst);
   format %{ "vpternlogd $dst,$src2,$src3,$func\t! vector ternary logic" %}