src/share/vm/opto/subnode.cpp

rev 3227 : 7133857: exp() and pow() should use the x87 ISA on x86
Summary: use x87 instructions to implement exp() and pow() in interpreter/c1/c2.
Reviewed-by:

*** 1312,1320 ****
    const Type *t2 = phase->type( in(2) );
    if( t2 == Type::TOP ) return Type::TOP;
    if( t2->base() != Type::DoubleCon ) return Type::DOUBLE;
    double d1 = t1->getd();
    double d2 = t2->getd();
-   if( d1 < 0.0 ) return Type::DOUBLE;
-   if( d2 < 0.0 ) return Type::DOUBLE;
    return TypeD::make( StubRoutines::intrinsic_pow( d1, d2 ) );
  }
--- 1312,1318 ----