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AsmWriter: Split out SlotTracker::processInstructionMetadata(), NFC 

llvm-svn: 232273
This commit is contained in:
Duncan P. N. Exon Smith 2015-03-14 19:48:31 +00:00
parent 27f33ee368
commit 20b76ac2ae
1 changed files with 24 additions and 18 deletions
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42
llvm/lib/IR/AsmWriter.cpp
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@ -606,6 +606,9 @@ private:
/// Add all of the functions arguments, basic blocks, and instructions.
void processFunction();
/// Add all of the metadata from an instruction.
void processInstructionMetadata(const Instruction &I);
SlotTracker(const SlotTracker &) = delete;
void operator=(const SlotTracker &) = delete;
};
@ -715,8 +718,6 @@ void SlotTracker::processFunction() {
ST_DEBUG("Inserting Instructions:\n");
SmallVector<std::pair<unsigned, MDNode *>, 4> MDForInst;
// Add all of the basic blocks and instructions with no names.
for (auto &BB : *TheFunction) {
if (!BB.hasName())
@ -726,17 +727,11 @@ void SlotTracker::processFunction() {
if (!I.getType()->isVoidTy() && !I.hasName())
CreateFunctionSlot(&I);
// Intrinsics can directly use metadata. We allow direct calls to any
// llvm.foo function here, because the target may not be linked into the
// optimizer.
if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
if (Function *F = CI->getCalledFunction())
if (F->isIntrinsic())
for (auto &Op : I.operands())
if (auto *V = dyn_cast_or_null<MetadataAsValue>(Op))
if (MDNode *N = dyn_cast<MDNode>(V->getMetadata()))
CreateMetadataSlot(N);
processInstructionMetadata(I);
// We allow direct calls to any llvm.foo function here, because the
// target may not be linked into the optimizer.
if (const CallInst *CI = dyn_cast<CallInst>(&I)) {
// Add all the call attributes to the table.
AttributeSet Attrs = CI->getAttributes().getFnAttributes();
if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
@ -747,12 +742,6 @@ void SlotTracker::processFunction() {
if (Attrs.hasAttributes(AttributeSet::FunctionIndex))
CreateAttributeSetSlot(Attrs);
}
// Process metadata attached with this instruction.
I.getAllMetadata(MDForInst);
for (auto &MD : MDForInst)
CreateMetadataSlot(MD.second);
MDForInst.clear();
}
}
@ -761,6 +750,23 @@ void SlotTracker::processFunction() {
ST_DEBUG("end processFunction!\n");
}
void SlotTracker::processInstructionMetadata(const Instruction &I) {
// Process metadata used directly by intrinsics.
if (const CallInst *CI = dyn_cast<CallInst>(&I))
if (Function *F = CI->getCalledFunction())
if (F->isIntrinsic())
for (auto &Op : I.operands())
if (auto *V = dyn_cast_or_null<MetadataAsValue>(Op))
if (MDNode *N = dyn_cast<MDNode>(V->getMetadata()))
CreateMetadataSlot(N);
// Process metadata attached to this instruction.
SmallVector<std::pair<unsigned, MDNode *>, 4> MDs;
I.getAllMetadata(MDs);
for (auto &MD : MDs)
CreateMetadataSlot(MD.second);
}
/// Clean up after incorporating a function. This is the only way to get out of
/// the function incorporation state that affects get*Slot/Create*Slot. Function
/// incorporation state is indicated by TheFunction != 0.