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8001101: C2: more general vector rule subsetting

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Allow which vector rules are supported to be decided at runtime. Also a small change to allow vector types in Type::_type_info[] to apply to more platforms.

Reviewed-by: kvn, twisti
This commit is contained in:
Dean Long 2012-10-19 14:21:09 -04:00 committed by Dean Long
parent 247b39e010
commit e57ac83cac
2 changed files with 6 additions and 5 deletions
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2
hotspot/src/share/vm/opto/type.cpp
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@ -61,7 +61,7 @@ Type::TypeInfo Type::_type_info[Type::lastype] = {
{ Bad, T_ILLEGAL, "tuple:", false, Node::NotAMachineReg, relocInfo::none }, // Tuple
{ Bad, T_ARRAY, "array:", false, Node::NotAMachineReg, relocInfo::none }, // Array
#if defined(IA32) || defined(AMD64)
#ifndef SPARC
{ Bad, T_ILLEGAL, "vectors:", false, Op_VecS, relocInfo::none }, // VectorS
{ Bad, T_ILLEGAL, "vectord:", false, Op_VecD, relocInfo::none }, // VectorD
{ Bad, T_ILLEGAL, "vectorx:", false, Op_VecX, relocInfo::none }, // VectorX

9
hotspot/src/share/vm/opto/vectornode.cpp
View File

@ -29,8 +29,7 @@
//------------------------------VectorNode--------------------------------------
// Return the vector operator for the specified scalar operation
// and vector length. Also used to check if the code generator
// supports the vector operation.
// and vector length.
int VectorNode::opcode(int sopc, BasicType bt) {
switch (sopc) {
case Op_AddI:
@ -75,7 +74,7 @@ int VectorNode::opcode(int sopc, BasicType bt) {
case T_BYTE: return 0; // Unimplemented
case T_CHAR:
case T_SHORT: return Op_MulVS;
case T_INT: return Matcher::match_rule_supported(Op_MulVI) ? Op_MulVI : 0; // SSE4_1
case T_INT: return Op_MulVI;
}
ShouldNotReachHere();
case Op_MulF:
@ -157,12 +156,14 @@ int VectorNode::opcode(int sopc, BasicType bt) {
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::has_match_rule(vopc);
return vopc > 0 && Matcher::match_rule_supported(vopc);
}
return false;
}