Mercurial > hg > graal-compiler
view src/share/vm/opto/vectornode.cpp @ 21696:ca140f8c35be
Empty pointer stamps are also non-null.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Wed, 03 Jun 2015 14:08:29 +0200 |
parents | b2c669fd8114 |
children |
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/* * 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; }