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Representation of 'atomic load' and 'atomic store' in IR.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137170 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman
2011-08-09 23:02:53 +00:00
parent 51c9805c4b
commit 21006d40ac
12 changed files with 390 additions and 78 deletions
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25
lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -1175,19 +1175,34 @@ static void WriteInstruction(const Instruction &I, unsigned InstID,
break;
case Instruction::Load:
Code = bitc::FUNC_CODE_INST_LOAD;
if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) // ptr
AbbrevToUse = FUNCTION_INST_LOAD_ABBREV;
if (cast<LoadInst>(I).isAtomic()) {
Code = bitc::FUNC_CODE_INST_LOADATOMIC;
PushValueAndType(I.getOperand(0), InstID, Vals, VE);
} else {
Code = bitc::FUNC_CODE_INST_LOAD;
if (!PushValueAndType(I.getOperand(0), InstID, Vals, VE)) // ptr
AbbrevToUse = FUNCTION_INST_LOAD_ABBREV;
}
Vals.push_back(Log2_32(cast<LoadInst>(I).getAlignment())+1);
Vals.push_back(cast<LoadInst>(I).isVolatile());
if (cast<LoadInst>(I).isAtomic()) {
Vals.push_back(GetEncodedOrdering(cast<LoadInst>(I).getOrdering()));
Vals.push_back(GetEncodedSynchScope(cast<LoadInst>(I).getSynchScope()));
}
break;
case Instruction::Store:
Code = bitc::FUNC_CODE_INST_STORE;
if (cast<StoreInst>(I).isAtomic())
Code = bitc::FUNC_CODE_INST_STOREATOMIC;
else
Code = bitc::FUNC_CODE_INST_STORE;
PushValueAndType(I.getOperand(1), InstID, Vals, VE); // ptrty + ptr
Vals.push_back(VE.getValueID(I.getOperand(0))); // val.
Vals.push_back(Log2_32(cast<StoreInst>(I).getAlignment())+1);
Vals.push_back(cast<StoreInst>(I).isVolatile());
if (cast<StoreInst>(I).isAtomic()) {
Vals.push_back(GetEncodedOrdering(cast<StoreInst>(I).getOrdering()));
Vals.push_back(GetEncodedSynchScope(cast<StoreInst>(I).getSynchScope()));
}
break;
case Instruction::AtomicCmpXchg:
Code = bitc::FUNC_CODE_INST_CMPXCHG;