src/hotspot/share/opto/convertnode.cpp

rev 47825 : Support vectorization of sqrt for float

*** 71,80 ****
--- 71,95 ----
    if( t == Type::DOUBLE ) return Type::FLOAT;
    const TypeD *td = t->is_double_constant();
    return TypeF::make( (float)td->getd() );
  }
  
+ //------------------------------Ideal------------------------------------------
+ // If we see pattern ConvF2D SomeDoubleOp ConvD2F, do operation as float.
+ Node *ConvD2FNode::Ideal(PhaseGVN *phase, bool can_reshape) {
+   if ( in(1)->Opcode() == Op_SqrtD ) {
+     Node* sqrtd = in(1);
+     if ( sqrtd->in(1)->Opcode() == Op_ConvF2D ) {
+       if ( Matcher::match_rule_supported(Op_SqrtF) ) {
+         Node* convf2d = sqrtd->in(1);
+         return new SqrtFNode(phase->C, sqrtd->in(0), convf2d->in(1));
+       }
+     }
+   }
+   return NULL;
+ }
+ 
  //------------------------------Identity---------------------------------------
  // Float's can be converted to doubles with no loss of bits.  Hence
  // converting a float to a double and back to a float is a NOP.
  Node* ConvD2FNode::Identity(PhaseGVN* phase) {
    return (in(1)->Opcode() == Op_ConvF2D) ? in(1)->in(1) : this;