src/share/vm/opto/subnode.cpp

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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.
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1297   const Type *t1 = phase->type( in(1) );
1298   if( t1 == Type::TOP ) return Type::TOP;
1299   if( t1->base() != Type::DoubleCon ) return Type::DOUBLE;
1300   double d = t1->getd();
1301   return TypeD::make( StubRoutines::intrinsic_exp( d ) );
1302 }
1303 
1304 
1305 //=============================================================================
1306 //------------------------------Value------------------------------------------
1307 // Compute pow
1308 const Type *PowDNode::Value( PhaseTransform *phase ) const {
1309   const Type *t1 = phase->type( in(1) );
1310   if( t1 == Type::TOP ) return Type::TOP;
1311   if( t1->base() != Type::DoubleCon ) return Type::DOUBLE;
1312   const Type *t2 = phase->type( in(2) );
1313   if( t2 == Type::TOP ) return Type::TOP;
1314   if( t2->base() != Type::DoubleCon ) return Type::DOUBLE;
1315   double d1 = t1->getd();
1316   double d2 = t2->getd();
1317   if( d1 < 0.0 ) return Type::DOUBLE;
1318   if( d2 < 0.0 ) return Type::DOUBLE;
1319   return TypeD::make( StubRoutines::intrinsic_pow( d1, d2 ) );
1320 }



1297   const Type *t1 = phase->type( in(1) );
1298   if( t1 == Type::TOP ) return Type::TOP;
1299   if( t1->base() != Type::DoubleCon ) return Type::DOUBLE;
1300   double d = t1->getd();
1301   return TypeD::make( StubRoutines::intrinsic_exp( d ) );
1302 }
1303 
1304 
1305 //=============================================================================
1306 //------------------------------Value------------------------------------------
1307 // Compute pow
1308 const Type *PowDNode::Value( PhaseTransform *phase ) const {
1309   const Type *t1 = phase->type( in(1) );
1310   if( t1 == Type::TOP ) return Type::TOP;
1311   if( t1->base() != Type::DoubleCon ) return Type::DOUBLE;
1312   const Type *t2 = phase->type( in(2) );
1313   if( t2 == Type::TOP ) return Type::TOP;
1314   if( t2->base() != Type::DoubleCon ) return Type::DOUBLE;
1315   double d1 = t1->getd();
1316   double d2 = t2->getd();


1317   return TypeD::make( StubRoutines::intrinsic_pow( d1, d2 ) );
1318 }