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Simplify TableGen type-compatibility checks.

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Patch by Elior Malul!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171684 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sean Silva
2013-01-07 02:30:19 +00:00
parent aeef83c6af
commit 37fda193d2
2 changed files with 45 additions and 75 deletions
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45
lib/TableGen/Record.cpp
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@ -95,15 +95,16 @@ ListRecTy *RecTy::getListTy() {
return ListTy;
}
bool RecTy::baseClassOf(const RecTy *RHS) const{
assert (RHS && "NULL pointer");
return Kind == RHS->getRecTyKind();
}
Init *BitRecTy::convertValue(BitsInit *BI) {
if (BI->getNumBits() != 1) return 0; // Only accept if just one bit!
return BI->getBit(0);
}
bool BitRecTy::baseClassOf(const BitsRecTy *RHS) const {
return RHS->getNumBits() == 1;
}
Init *BitRecTy::convertValue(IntInit *II) {
int64_t Val = II->getValue();
if (Val != 0 && Val != 1) return 0; // Only accept 0 or 1 for a bit!
@ -118,6 +119,14 @@ Init *BitRecTy::convertValue(TypedInit *VI) {
return 0;
}
bool BitRecTy::baseClassOf(const RecTy *RHS) const{
if(RecTy::baseClassOf(RHS) || getRecTyKind() == IntRecTyKind)
return true;
if(const BitsRecTy *BitsTy = dyn_cast<BitsRecTy>(RHS))
return BitsTy->getNumBits() == 1;
return false;
}
BitsRecTy *BitsRecTy::get(unsigned Sz) {
static std::vector<BitsRecTy*> Shared;
if (Sz >= Shared.size())
@ -193,6 +202,13 @@ Init *BitsRecTy::convertValue(TypedInit *VI) {
return 0;
}
bool BitsRecTy::baseClassOf(const RecTy *RHS) const{
if (RecTy::baseClassOf(RHS)) //argument and the receiver are the same type
return cast<BitsRecTy>(RHS)->Size == Size;
RecTyKind kind = RHS->getRecTyKind();
return (kind == BitRecTyKind && Size == 1) || (kind == IntRecTyKind);
}
Init *IntRecTy::convertValue(BitInit *BI) {
return IntInit::get(BI->getValue());
}
@ -214,6 +230,11 @@ Init *IntRecTy::convertValue(TypedInit *TI) {
return 0;
}
bool IntRecTy::baseClassOf(const RecTy *RHS) const{
RecTyKind kind = RHS->getRecTyKind();
return kind==BitRecTyKind || kind==BitsRecTyKind || kind==IntRecTyKind;
}
Init *StringRecTy::convertValue(UnOpInit *BO) {
if (BO->getOpcode() == UnOpInit::CAST) {
Init *L = BO->getOperand()->convertInitializerTo(this);
@ -275,6 +296,12 @@ Init *ListRecTy::convertValue(TypedInit *TI) {
return 0;
}
bool ListRecTy::baseClassOf(const RecTy *RHS) const{
if(const ListRecTy* ListTy = dyn_cast<ListRecTy>(RHS))
return ListTy->getElementType()->typeIsConvertibleTo(Ty);
return false;
}
Init *DagRecTy::convertValue(TypedInit *TI) {
if (TI->getType()->typeIsConvertibleTo(this))
return TI;
@ -328,13 +355,17 @@ Init *RecordRecTy::convertValue(TypedInit *TI) {
return 0;
}
bool RecordRecTy::baseClassOf(const RecordRecTy *RHS) const {
if (Rec == RHS->getRecord() || RHS->getRecord()->isSubClassOf(Rec))
bool RecordRecTy::baseClassOf(const RecTy *RHS) const{
const RecordRecTy *RTy = dyn_cast<RecordRecTy>(RHS);
if (!RTy)
return false;
if (Rec == RTy->getRecord() || RTy->getRecord()->isSubClassOf(Rec))
return true;
const std::vector<Record*> &SC = Rec->getSuperClasses();
for (unsigned i = 0, e = SC.size(); i != e; ++i)
if (RHS->getRecord()->isSubClassOf(SC[i]))
if (RTy->getRecord()->isSubClassOf(SC[i]))
return true;
return false;