jdk8-mips64-public/hotspot: src/share/vm/opto/vectornode.cpp@69ea58782b1a (annotated)

src/share/vm/opto/vectornode.cpp@69ea58782b1a (annotated)

src/share/vm/opto/vectornode.cpp

Thu, 31 Jul 2014 19:59:36 +0200

author: roland
date: Thu, 31 Jul 2014 19:59:36 +0200
changeset 7003: 69ea58782b1a
parent 4204: b2c669fd8114
child 6876: 710a3c8b516e
child 7859: c1c199dde5c9
permissions: -rw-r--r--

8054054: 8040121 is broken
Summary: C++ code pattern from 8040121 is incorrect
Reviewed-by: kvn

 /*
  * 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;
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/opto/vectornode.cpp@69ea58782b1a (annotated)

src/share/vm/opto/vectornode.cpp