/// ValueTypeActions - This is a bitvector that contains two bits for each
/// value type, where the two bits correspond to the LegalizeAction enum.
/// This can be queried with "getTypeAction(VT)".
- /// dimension by (MVT::MAX_ALLOWED_LAST_VALUETYPE/32) * 2
- uint32_t ValueTypeActions[4];
+ /// dimension by (MVT::MAX_ALLOWED_VALUETYPE/32) * 2
+ uint32_t ValueTypeActions[(MVT::MAX_ALLOWED_VALUETYPE/32)*2];
public:
ValueTypeActionImpl() {
ValueTypeActions[0] = ValueTypeActions[1] = 0;
/// for it.
LegalizeAction getOperationAction(unsigned Op, MVT VT) const {
if (VT.isExtended()) return Expand;
- assert(Op < array_lengthof(OpActions) &&
- (unsigned)VT.getSimpleVT() < sizeof(OpActions[0])*8 &&
+ assert(Op < array_lengthof(OpActions[0]) &&
+ (unsigned)VT.getSimpleVT() < sizeof(OpActions[0][0])*8 &&
"Table isn't big enough!");
- return (LegalizeAction)((OpActions[Op] >> (2*VT.getSimpleVT())) & 3);
+ unsigned I = (unsigned) VT.getSimpleVT();
+ unsigned J = I & 31;
+ I = I >> 5;
+ return (LegalizeAction)((OpActions[I][Op] >> (J*2) ) & 3);
}
/// isOperationLegalOrCustom - Return true if the specified operation is
/// with the specified type and indicate what to do about it.
void setOperationAction(unsigned Op, MVT VT,
LegalizeAction Action) {
- assert((unsigned)VT.getSimpleVT() < sizeof(OpActions[0])*8 &&
- Op < array_lengthof(OpActions) && "Table isn't big enough!");
- OpActions[Op] &= ~(uint64_t(3UL) << VT.getSimpleVT()*2);
- OpActions[Op] |= (uint64_t)Action << VT.getSimpleVT()*2;
+ assert((unsigned)VT.getSimpleVT() < sizeof(OpActions[0][0])*8 &&
+ Op < array_lengthof(OpActions[0]) && "Table isn't big enough!");
+ unsigned I = (unsigned) VT.getSimpleVT();
+ unsigned J = I & 31;
+ I = I >> 5;
+ OpActions[I][Op] &= ~(uint64_t(3UL) << (J*2));
+ OpActions[I][Op] |= (uint64_t)Action << (J*2);
}
/// setLoadExtAction - Indicate that the specified load with extension does
/// Most operations are Legal (aka, supported natively by the target), but
/// operations that are not should be described. Note that operations on
/// non-legal value types are not described here.
- uint64_t OpActions[ISD::BUILTIN_OP_END];
+ /// This array is accessed using VT.getSimpleVT(), so it is subject to
+ /// the MVT::MAX_ALLOWED_VALUETYPE * 2 bits.
+ uint64_t OpActions[MVT::MAX_ALLOWED_VALUETYPE/(sizeof(uint64_t)*4)][ISD::BUILTIN_OP_END];
/// LoadExtActions - For each load of load extension type and each value type,
/// keep a LegalizeAction that indicates how instruction selection should deal