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https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-18 12:29:21 +00:00
Use enums, move virtual dtor out of line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19610 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -20,21 +20,25 @@ TargetLowering::TargetLowering(TargetMachine &tm)
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: TM(tm), TD(TM.getTargetData()), ValueTypeActions(0) {
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assert(ISD::BUILTIN_OP_END <= 128 &&
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"Fixed size array in TargetLowering is not large enough!");
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// All operations default to being supported.
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memset(OpActions, 0, sizeof(OpActions));
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IsLittleEndian = TD.isLittleEndian();
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PointerTy = getValueType(TD.getIntPtrType());
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memset(UnsupportedOps, 0, 128*sizeof(short));
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memset(RegClassForVT, 0,MVT::LAST_VALUETYPE*sizeof(TargetRegisterClass*));
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}
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TargetLowering::~TargetLowering() {}
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/// setValueTypeAction - Set the action for a particular value type. This
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/// assumes an action has not already been set for this value type.
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static void SetValueTypeAction(MVT::ValueType VT, unsigned Action,
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static void SetValueTypeAction(MVT::ValueType VT,
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TargetLowering::LegalizeAction Action,
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TargetLowering &TLI,
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MVT::ValueType *TransformToType,
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unsigned &ValueTypeActions) {
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ValueTypeActions |= Action << (VT*2);
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if (Action == 1 /*promote*/) {
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if (Action == TargetLowering::Promote) {
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MVT::ValueType PromoteTo;
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if (VT == MVT::f32)
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PromoteTo = MVT::f64;
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@ -53,7 +57,7 @@ static void SetValueTypeAction(MVT::ValueType VT, unsigned Action,
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"Can only promote from int->int or fp->fp!");
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assert(VT < PromoteTo && "Must promote to a larger type!");
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TransformToType[VT] = PromoteTo;
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} else if (Action == 2) {
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} else if (Action == TargetLowering::Expand) {
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assert(MVT::isInteger(VT) && VT > MVT::i8 &&
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"Cannot expand this type: target must support SOME integer reg!");
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// Expand to the next smaller integer type!
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@ -87,22 +91,24 @@ void TargetLowering::computeRegisterProperties() {
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for (unsigned IntReg = MVT::i1; IntReg <= MVT::i128; ++IntReg)
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// If we are expanding this type, expand it!
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if (getNumElements((MVT::ValueType)IntReg) != 1)
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SetValueTypeAction((MVT::ValueType)IntReg, 2, *this, TransformToType,
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SetValueTypeAction((MVT::ValueType)IntReg, Expand, *this, TransformToType,
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ValueTypeActions);
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else if (!hasNativeSupportFor((MVT::ValueType)IntReg))
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// Otherwise, if we don't have native support, we must promote to a
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// larger type.
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SetValueTypeAction((MVT::ValueType)IntReg, 1, *this, TransformToType,
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ValueTypeActions);
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SetValueTypeAction((MVT::ValueType)IntReg, Promote, *this,
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TransformToType, ValueTypeActions);
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else
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TransformToType[(MVT::ValueType)IntReg] = (MVT::ValueType)IntReg;
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// If the target does not have native support for F32, promote it to F64.
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if (!hasNativeSupportFor(MVT::f32))
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SetValueTypeAction(MVT::f32, 1, *this, TransformToType, ValueTypeActions);
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SetValueTypeAction(MVT::f32, Promote, *this,
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TransformToType, ValueTypeActions);
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else
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TransformToType[MVT::f32] = MVT::f32;
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assert(hasNativeSupportFor(MVT::f64) && "Target does not support FP?");
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TransformToType[MVT::f64] = MVT::f64;
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}
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