void LowerBitSets::lowerBitSetCalls(
ArrayRef<Metadata *> BitSets, Constant *CombinedGlobalAddr,
const DenseMap<GlobalObject *, uint64_t> &GlobalLayout) {
Constant *CombinedGlobalIntAddr =
ConstantExpr::getPtrToInt(CombinedGlobalAddr, IntPtrTy);
// For each bitset in this disjoint set...
for (Metadata *BS : BitSets) {
// Build the bitset.
BitSetInfo BSI = buildBitSet(BS, GlobalLayout);
DEBUG({
if (auto BSS = dyn_cast<MDString>(BS))
dbgs() << BSS->getString() << ": ";
else
dbgs() << "<unnamed>: ";
BSI.print(dbgs());
});
ByteArrayInfo *BAI = 0;
// Lower each call to llvm.bitset.test for this bitset.
for (CallInst *CI : BitSetTestCallSites[BS]) {
++NumBitSetCallsLowered;
Value *Lowered =
lowerBitSetCall(CI, BSI, BAI, CombinedGlobalIntAddr, GlobalLayout);
CI->replaceAllUsesWith(Lowered);
CI->eraseFromParent();
}
}
void LowerTypeTestsModule::lowerTypeTestCalls(
ArrayRef<Metadata *> TypeIds, Constant *CombinedGlobalAddr,
const DenseMap<GlobalObject *, uint64_t> &GlobalLayout) {
Constant *CombinedGlobalIntAddr =
ConstantExpr::getPtrToInt(CombinedGlobalAddr, IntPtrTy);
// For each type identifier in this disjoint set...
for (Metadata *TypeId : TypeIds) {
// Build the bitset.
BitSetInfo BSI = buildBitSet(TypeId, GlobalLayout);
DEBUG({
if (auto MDS = dyn_cast<MDString>(TypeId))
dbgs() << MDS->getString() << ": ";
else
dbgs() << "<unnamed>: ";
BSI.print(dbgs());
});
ByteArrayInfo *BAI = nullptr;
// Lower each call to llvm.type.test for this type identifier.
for (CallInst *CI : TypeTestCallSites[TypeId]) {
++NumTypeTestCallsLowered;
Value *Lowered =
lowerBitSetCall(CI, BSI, BAI, CombinedGlobalIntAddr, GlobalLayout);
CI->replaceAllUsesWith(Lowered);
CI->eraseFromParent();
}
}
