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8236443: Issues with specializing vector register type for phi operand with generic operands

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Fix special handling for operand resolution of vectorshift and shiftcount nodes. Fix for crash in the resolution algorithm due to non-machine type nodes.

Reviewed-by: vlivanov
This commit is contained in:
Jatin Bhateja 2020-01-14 09:51:10 +05:30
parent b79d75d033
commit 2b9fef7d7b
4 changed files with 60 additions and 21 deletions
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32
src/hotspot/share/opto/vectornode.cpp
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@ -485,6 +485,38 @@ VectorNode* VectorNode::shift_count(Node* shift, Node* cnt, uint vlen, BasicType
}
}
bool VectorNode::is_vector_shift(int opc) {
assert(opc > _last_machine_leaf && opc < _last_opcode, "invalid opcode");
switch (opc) {
case Op_LShiftVB:
case Op_LShiftVS:
case Op_LShiftVI:
case Op_LShiftVL:
case Op_RShiftVB:
case Op_RShiftVS:
case Op_RShiftVI:
case Op_RShiftVL:
case Op_URShiftVB:
case Op_URShiftVS:
case Op_URShiftVI:
case Op_URShiftVL:
return true;
default:
return false;
}
}
bool VectorNode::is_shift_count(int opc) {
assert(opc > _last_machine_leaf && opc < _last_opcode, "invalid opcode");
switch (opc) {
case Op_RShiftCntV:
case Op_LShiftCntV:
return true;
default:
return false;
}
}
// Return initial Pack node. Additional operands added with add_opd() calls.
PackNode* PackNode::make(Node* s, uint vlen, BasicType bt) {
const TypeVect* vt = TypeVect::make(bt, vlen);