/*
* Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include "precompiled.hpp"
#include "memory/allocation.inline.hpp"
#include "opto/connode.hpp"
#include "opto/vectornode.hpp"
//------------------------------VectorNode--------------------------------------
// Return the vector operator for the specified scalar operation
// and vector length.
int VectorNode::opcode(int sopc, BasicType bt) {
switch (sopc) {
case Op_AddI:
switch (bt) {
case T_BOOLEAN:
case T_BYTE: return Op_AddVB;
case T_CHAR:
case T_SHORT: return Op_AddVS;
case T_INT: return Op_AddVI;
}
ShouldNotReachHere();
case Op_AddL:
assert(bt == T_LONG, "must be");
return Op_AddVL;
case Op_AddF:
assert(bt == T_FLOAT, "must be");
return Op_AddVF;
case Op_AddD:
assert(bt == T_DOUBLE, "must be");
return Op_AddVD;
case Op_SubI:
switch (bt) {
case T_BOOLEAN:
case T_BYTE: return Op_SubVB;
case T_CHAR:
case T_SHORT: return Op_SubVS;
case T_INT: return Op_SubVI;
}
ShouldNotReachHere();
case Op_SubL:
assert(bt == T_LONG, "must be");
return Op_SubVL;
case Op_SubF:
assert(bt == T_FLOAT, "must be");
return Op_SubVF;
case Op_SubD:
assert(bt == T_DOUBLE, "must be");
return Op_SubVD;
case Op_MulI:
switch (bt) {
case T_BOOLEAN:
case T_BYTE: return 0; // Unimplemented
case T_CHAR:
case T_SHORT: return Op_MulVS;
case T_INT: return Op_MulVI;
}
ShouldNotReachHere();
case Op_MulF:
assert(bt == T_FLOAT, "must be");
return Op_MulVF;
case Op_MulD:
assert(bt == T_DOUBLE, "must be");
return Op_MulVD;
case Op_DivF:
assert(bt == T_FLOAT, "must be");
return Op_DivVF;
case Op_DivD:
assert(bt == T_DOUBLE, "must be");
return Op_DivVD;
case Op_LShiftI:
switch (bt) {
case T_BOOLEAN:
case T_BYTE: return Op_LShiftVB;
case T_CHAR:
case T_SHORT: return Op_LShiftVS;
case T_INT: return Op_LShiftVI;
}
ShouldNotReachHere();
case Op_LShiftL:
assert(bt == T_LONG, "must be");
return Op_LShiftVL;
case Op_RShiftI:
switch (bt) {
case T_BOOLEAN:return Op_URShiftVB; // boolean is unsigned value
case T_CHAR: return Op_URShiftVS; // char is unsigned value
case T_BYTE: return Op_RShiftVB;
case T_SHORT: return Op_RShiftVS;
case T_INT: return Op_RShiftVI;
}
ShouldNotReachHere();
case Op_RShiftL:
assert(bt == T_LONG, "must be");
return Op_RShiftVL;
case Op_URShiftI:
switch (bt) {
case T_BOOLEAN:return Op_URShiftVB;
case T_CHAR: return Op_URShiftVS;
case T_BYTE:
case T_SHORT: return 0; // Vector logical right shift for signed short
// values produces incorrect Java result for
// negative data because java code should convert
// a short value into int value with sign
// extension before a shift.
case T_INT: return Op_URShiftVI;
}
ShouldNotReachHere();
case Op_URShiftL:
assert(bt == T_LONG, "must be");
return Op_URShiftVL;
case Op_AndI:
case Op_AndL:
return Op_AndV;
case Op_OrI:
case Op_OrL:
return Op_OrV;
case Op_XorI:
case Op_XorL:
return Op_XorV;
case Op_LoadB:
case Op_LoadUB:
case Op_LoadUS:
case Op_LoadS:
case Op_LoadI:
case Op_LoadL:
case Op_LoadF:
case Op_LoadD:
return Op_LoadVector;
case Op_StoreB:
case Op_StoreC:
case Op_StoreI:
case Op_StoreL:
case Op_StoreF:
case Op_StoreD:
return Op_StoreVector;
}
return 0; // Unimplemented
}
// Also used to check if the code generator
// supports the vector operation.
bool VectorNode::implemented(int opc, uint vlen, BasicType bt) {
if (is_java_primitive(bt) &&
(vlen > 1) && is_power_of_2(vlen) &&
Matcher::vector_size_supported(bt, vlen)) {
int vopc = VectorNode::opcode(opc, bt);
return vopc > 0 && Matcher::match_rule_supported(vopc);
}
return false;
}
bool VectorNode::is_shift(Node* n) {
switch (n->Opcode()) {
case Op_LShiftI:
case Op_LShiftL:
case Op_RShiftI:
case Op_RShiftL:
case Op_URShiftI:
case Op_URShiftL:
return true;
}
return false;
}
// Check if input is loop invariant vector.
bool VectorNode::is_invariant_vector(Node* n) {
// Only Replicate vector nodes are loop invariant for now.
switch (n->Opcode()) {
case Op_ReplicateB:
case Op_ReplicateS:
case Op_ReplicateI:
case Op_ReplicateL:
case Op_ReplicateF:
case Op_ReplicateD:
return true;
}
return false;
}
// [Start, end) half-open range defining which operands are vectors
void VectorNode::vector_operands(Node* n, uint* start, uint* end) {
switch (n->Opcode()) {
case Op_LoadB: case Op_LoadUB:
case Op_LoadS: case Op_LoadUS:
case Op_LoadI: case Op_LoadL:
case Op_LoadF: case Op_LoadD:
case Op_LoadP: case Op_LoadN:
*start = 0;
*end = 0; // no vector operands
break;
case Op_StoreB: case Op_StoreC:
case Op_StoreI: case Op_StoreL:
case Op_StoreF: case Op_StoreD:
case Op_StoreP: case Op_StoreN:
*start = MemNode::ValueIn;
*end = MemNode::ValueIn + 1; // 1 vector operand
break;
case Op_LShiftI: case Op_LShiftL:
case Op_RShiftI: case Op_RShiftL:
case Op_URShiftI: case Op_URShiftL:
*start = 1;
*end = 2; // 1 vector operand
break;
case Op_AddI: case Op_AddL: case Op_AddF: case Op_AddD:
case Op_SubI: case Op_SubL: case Op_SubF: case Op_SubD:
case Op_MulI: case Op_MulL: case Op_MulF: case Op_MulD:
case Op_DivF: case Op_DivD:
case Op_AndI: case Op_AndL:
case Op_OrI: case Op_OrL:
case Op_XorI: case Op_XorL:
*start = 1;
*end = 3; // 2 vector operands
break;
case Op_CMoveI: case Op_CMoveL: case Op_CMoveF: case Op_CMoveD:
*start = 2;
*end = n->req();
break;
default:
*start = 1;
*end = n->req(); // default is all operands
}
}
// Return the vector version of a scalar operation node.
VectorNode* VectorNode::make(Compile* C, int opc, Node* n1, Node* n2, uint vlen, BasicType bt) {
const TypeVect* vt = TypeVect::make(bt, vlen);
int vopc = VectorNode::opcode(opc, bt);
// This method should not be called for unimplemented vectors.
guarantee(vopc > 0, err_msg_res("Vector for '%s' is not implemented", NodeClassNames[opc]));
switch (vopc) {
case Op_AddVB: return new (C) AddVBNode(n1, n2, vt);
case Op_AddVS: return new (C) AddVSNode(n1, n2, vt);
case Op_AddVI: return new (C) AddVINode(n1, n2, vt);
case Op_AddVL: return new (C) AddVLNode(n1, n2, vt);
case Op_AddVF: return new (C) AddVFNode(n1, n2, vt);
case Op_AddVD: return new (C) AddVDNode(n1, n2, vt);
case Op_SubVB: return new (C) SubVBNode(n1, n2, vt);
case Op_SubVS: return new (C) SubVSNode(n1, n2, vt);
case Op_SubVI: return new (C) SubVINode(n1, n2, vt);
case Op_SubVL: return new (C) SubVLNode(n1, n2, vt);
case Op_SubVF: return new (C) SubVFNode(n1, n2, vt);
case Op_SubVD: return new (C) SubVDNode(n1, n2, vt);
case Op_MulVS: return new (C) MulVSNode(n1, n2, vt);
case Op_MulVI: return new (C) MulVINode(n1, n2, vt);
case Op_MulVF: return new (C) MulVFNode(n1, n2, vt);
case Op_MulVD: return new (C) MulVDNode(n1, n2, vt);
case Op_DivVF: return new (C) DivVFNode(n1, n2, vt);
case Op_DivVD: return new (C) DivVDNode(n1, n2, vt);
case Op_LShiftVB: return new (C) LShiftVBNode(n1, n2, vt);
case Op_LShiftVS: return new (C) LShiftVSNode(n1, n2, vt);
case Op_LShiftVI: return new (C) LShiftVINode(n1, n2, vt);
case Op_LShiftVL: return new (C) LShiftVLNode(n1, n2, vt);
case Op_RShiftVB: return new (C) RShiftVBNode(n1, n2, vt);
case Op_RShiftVS: return new (C) RShiftVSNode(n1, n2, vt);
case Op_RShiftVI: return new (C) RShiftVINode(n1, n2, vt);
case Op_RShiftVL: return new (C) RShiftVLNode(n1, n2, vt);
case Op_URShiftVB: return new (C) URShiftVBNode(n1, n2, vt);
case Op_URShiftVS: return new (C) URShiftVSNode(n1, n2, vt);
case Op_URShiftVI: return new (C) URShiftVINode(n1, n2, vt);
case Op_URShiftVL: return new (C) URShiftVLNode(n1, n2, vt);
case Op_AndV: return new (C) AndVNode(n1, n2, vt);
case Op_OrV: return new (C) OrVNode (n1, n2, vt);
case Op_XorV: return new (C) XorVNode(n1, n2, vt);
}
fatal(err_msg_res("Missed vector creation for '%s'", NodeClassNames[vopc]));
return NULL;
}
// Scalar promotion
VectorNode* VectorNode::scalar2vector(Compile* C, Node* s, uint vlen, const Type* opd_t) {
BasicType bt = opd_t->array_element_basic_type();
const TypeVect* vt = opd_t->singleton() ? TypeVect::make(opd_t, vlen)
: TypeVect::make(bt, vlen);
switch (bt) {
case T_BOOLEAN:
case T_BYTE:
return new (C) ReplicateBNode(s, vt);
case T_CHAR:
case T_SHORT:
return new (C) ReplicateSNode(s, vt);
case T_INT:
return new (C) ReplicateINode(s, vt);
case T_LONG:
return new (C) ReplicateLNode(s, vt);
case T_FLOAT:
return new (C) ReplicateFNode(s, vt);
case T_DOUBLE:
return new (C) ReplicateDNode(s, vt);
}
fatal(err_msg_res("Type '%s' is not supported for vectors", type2name(bt)));
return NULL;
}
VectorNode* VectorNode::shift_count(Compile* C, Node* shift, Node* cnt, uint vlen, BasicType bt) {
assert(VectorNode::is_shift(shift) && !cnt->is_Con(), "only variable shift count");
// Match shift count type with shift vector type.
const TypeVect* vt = TypeVect::make(bt, vlen);
switch (shift->Opcode()) {
case Op_LShiftI:
case Op_LShiftL:
return new (C) LShiftCntVNode(cnt, vt);
case Op_RShiftI:
case Op_RShiftL:
case Op_URShiftI:
case Op_URShiftL:
return new (C) RShiftCntVNode(cnt, vt);
}
fatal(err_msg_res("Missed vector creation for '%s'", NodeClassNames[shift->Opcode()]));
return NULL;
}
// Return initial Pack node. Additional operands added with add_opd() calls.
PackNode* PackNode::make(Compile* C, Node* s, uint vlen, BasicType bt) {
const TypeVect* vt = TypeVect::make(bt, vlen);
switch (bt) {
case T_BOOLEAN:
case T_BYTE:
return new (C) PackBNode(s, vt);
case T_CHAR:
case T_SHORT:
return new (C) PackSNode(s, vt);
case T_INT:
return new (C) PackINode(s, vt);
case T_LONG:
return new (C) PackLNode(s, vt);
case T_FLOAT:
return new (C) PackFNode(s, vt);
case T_DOUBLE:
return new (C) PackDNode(s, vt);
}
fatal(err_msg_res("Type '%s' is not supported for vectors", type2name(bt)));
return NULL;
}
// Create a binary tree form for Packs. [lo, hi) (half-open) range
PackNode* PackNode::binary_tree_pack(Compile* C, int lo, int hi) {
int ct = hi - lo;
assert(is_power_of_2(ct), "power of 2");
if (ct == 2) {
PackNode* pk = PackNode::make(C, in(lo), 2, vect_type()->element_basic_type());
pk->add_opd(in(lo+1));
return pk;
} else {
int mid = lo + ct/2;
PackNode* n1 = binary_tree_pack(C, lo, mid);
PackNode* n2 = binary_tree_pack(C, mid, hi );
BasicType bt = n1->vect_type()->element_basic_type();
assert(bt == n2->vect_type()->element_basic_type(), "should be the same");
switch (bt) {
case T_BOOLEAN:
case T_BYTE:
return new (C) PackSNode(n1, n2, TypeVect::make(T_SHORT, 2));
case T_CHAR:
case T_SHORT:
return new (C) PackINode(n1, n2, TypeVect::make(T_INT, 2));
case T_INT:
return new (C) PackLNode(n1, n2, TypeVect::make(T_LONG, 2));
case T_LONG:
return new (C) Pack2LNode(n1, n2, TypeVect::make(T_LONG, 2));
case T_FLOAT:
return new (C) PackDNode(n1, n2, TypeVect::make(T_DOUBLE, 2));
case T_DOUBLE:
return new (C) Pack2DNode(n1, n2, TypeVect::make(T_DOUBLE, 2));
}
fatal(err_msg_res("Type '%s' is not supported for vectors", type2name(bt)));
}
return NULL;
}
// Return the vector version of a scalar load node.
LoadVectorNode* LoadVectorNode::make(Compile* C, int opc, Node* ctl, Node* mem,
Node* adr, const TypePtr* atyp, uint vlen, BasicType bt) {
const TypeVect* vt = TypeVect::make(bt, vlen);
return new (C) LoadVectorNode(ctl, mem, adr, atyp, vt);
}
// Return the vector version of a scalar store node.
StoreVectorNode* StoreVectorNode::make(Compile* C, int opc, Node* ctl, Node* mem,
Node* adr, const TypePtr* atyp, Node* val,
uint vlen) {
return new (C) StoreVectorNode(ctl, mem, adr, atyp, val);
}
// Extract a scalar element of vector.
Node* ExtractNode::make(Compile* C, Node* v, uint position, BasicType bt) {
assert((int)position < Matcher::max_vector_size(bt), "pos in range");
ConINode* pos = ConINode::make(C, (int)position);
switch (bt) {
case T_BOOLEAN:
return new (C) ExtractUBNode(v, pos);
case T_BYTE:
return new (C) ExtractBNode(v, pos);
case T_CHAR:
return new (C) ExtractCNode(v, pos);
case T_SHORT:
return new (C) ExtractSNode(v, pos);
case T_INT:
return new (C) ExtractINode(v, pos);
case T_LONG:
return new (C) ExtractLNode(v, pos);
case T_FLOAT:
return new (C) ExtractFNode(v, pos);
case T_DOUBLE:
return new (C) ExtractDNode(v, pos);
}
fatal(err_msg_res("Type '%s' is not supported for vectors", type2name(bt)));
return NULL;
}