mulnode.cpp (196:d1605aabd0a1) mulnode.cpp (404:78c058bc5cdc)
1/*
2 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *

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147 if( t1->higher_equal( zero ) ) return zero;
148 if( t2->higher_equal( zero ) ) return zero;
149 }
150
151 // Either input is BOTTOM ==> the result is the local BOTTOM
152 if( t1 == Type::BOTTOM || t2 == Type::BOTTOM )
153 return bottom_type();
154
1/*
2 * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *

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147 if( t1->higher_equal( zero ) ) return zero;
148 if( t2->higher_equal( zero ) ) return zero;
149 }
150
151 // Either input is BOTTOM ==> the result is the local BOTTOM
152 if( t1 == Type::BOTTOM || t2 == Type::BOTTOM )
153 return bottom_type();
154
155#if defined(IA32)
156 // Can't trust native compilers to properly fold strict double
157 // multiplication with round-to-zero on this platform.
158 if (op == Op_MulD && phase->C->method()->is_strict()) {
159 return TypeD::DOUBLE;
160 }
161#endif
162
155 return mul_ring(t1,t2); // Local flavor of type multiplication
156}
157
158
159//=============================================================================
160//------------------------------Ideal------------------------------------------
161// Check for power-of-2 multiply, then try the regular MulNode::Ideal
162Node *MulINode::Ideal(PhaseGVN *phase, bool can_reshape) {

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355 return TypeF::make( t0->getf() * t1->getf() );
356}
357
358//=============================================================================
359//------------------------------mul_ring---------------------------------------
360// Compute the product type of two double ranges into this node.
361const Type *MulDNode::mul_ring(const Type *t0, const Type *t1) const {
362 if( t0 == Type::DOUBLE || t1 == Type::DOUBLE ) return Type::DOUBLE;
163 return mul_ring(t1,t2); // Local flavor of type multiplication
164}
165
166
167//=============================================================================
168//------------------------------Ideal------------------------------------------
169// Check for power-of-2 multiply, then try the regular MulNode::Ideal
170Node *MulINode::Ideal(PhaseGVN *phase, bool can_reshape) {

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363 return TypeF::make( t0->getf() * t1->getf() );
364}
365
366//=============================================================================
367//------------------------------mul_ring---------------------------------------
368// Compute the product type of two double ranges into this node.
369const Type *MulDNode::mul_ring(const Type *t0, const Type *t1) const {
370 if( t0 == Type::DOUBLE || t1 == Type::DOUBLE ) return Type::DOUBLE;
363 // We must be adding 2 double constants.
371 // We must be multiplying 2 double constants.
364 return TypeD::make( t0->getd() * t1->getd() );
365}
366
367//=============================================================================
368//------------------------------Value------------------------------------------
369const Type *MulHiLNode::Value( PhaseTransform *phase ) const {
370 // Either input is TOP ==> the result is TOP
371 const Type *t1 = phase->type( in(1) );

--- 958 unchanged lines hidden --- 		372 return TypeD::make( t0->getd() * t1->getd() );
373}
374
375//=============================================================================
376//------------------------------Value------------------------------------------
377const Type *MulHiLNode::Value( PhaseTransform *phase ) const {
378 // Either input is TOP ==> the result is TOP
379 const Type *t1 = phase->type( in(1) );

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