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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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49
lib/Bitcode/Reader/BitcodeReader.cpp
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@@ -2567,6 +2567,28 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_LOADATOMIC: {
// LOADATOMIC: [opty, op, align, vol, ordering, synchscope]
unsigned OpNum = 0;
Value *Op;
if (getValueTypePair(Record, OpNum, NextValueNo, Op) ||
OpNum+4 != Record.size())
return Error("Invalid LOADATOMIC record");
AtomicOrdering Ordering = GetDecodedOrdering(Record[OpNum+2]);
if (Ordering == NotAtomic || Ordering == Release ||
Ordering == AcquireRelease)
return Error("Invalid LOADATOMIC record");
if (Ordering != NotAtomic && Record[OpNum] == 0)
return Error("Invalid LOADATOMIC record");
SynchronizationScope SynchScope = GetDecodedSynchScope(Record[OpNum+3]);
I = new LoadInst(Op, "", Record[OpNum+1], (1 << Record[OpNum]) >> 1,
Ordering, SynchScope);
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_STORE: { // STORE2:[ptrty, ptr, val, align, vol]
unsigned OpNum = 0;
Value *Val, *Ptr;
@@ -2580,6 +2602,29 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_STOREATOMIC: {
// STOREATOMIC: [ptrty, ptr, val, align, vol, ordering, synchscope]
unsigned OpNum = 0;
Value *Val, *Ptr;
if (getValueTypePair(Record, OpNum, NextValueNo, Ptr) ||
getValue(Record, OpNum,
cast<PointerType>(Ptr->getType())->getElementType(), Val) ||
OpNum+4 != Record.size())
return Error("Invalid STOREATOMIC record");
AtomicOrdering Ordering = GetDecodedOrdering(Record[OpNum+2]);
if (Ordering == NotAtomic || Ordering == Release ||
Ordering == AcquireRelease)
return Error("Invalid STOREATOMIC record");
SynchronizationScope SynchScope = GetDecodedSynchScope(Record[OpNum+3]);
if (Ordering != NotAtomic && Record[OpNum] == 0)
return Error("Invalid STOREATOMIC record");
I = new StoreInst(Val, Ptr, Record[OpNum+1], (1 << Record[OpNum]) >> 1,
Ordering, SynchScope);
InstructionList.push_back(I);
break;
}
case bitc::FUNC_CODE_INST_CMPXCHG: {
// CMPXCHG:[ptrty, ptr, cmp, new, vol, ordering, synchscope]
unsigned OpNum = 0;
@@ -2592,7 +2637,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
OpNum+3 != Record.size())
return Error("Invalid CMPXCHG record");
AtomicOrdering Ordering = GetDecodedOrdering(Record[OpNum+1]);
if (Ordering == NotAtomic)
if (Ordering == NotAtomic || Ordering == Unordered)
return Error("Invalid CMPXCHG record");
SynchronizationScope SynchScope = GetDecodedSynchScope(Record[OpNum+2]);
I = new AtomicCmpXchgInst(Ptr, Cmp, New, Ordering, SynchScope);
@@ -2614,7 +2659,7 @@ bool BitcodeReader::ParseFunctionBody(Function *F) {
Operation > AtomicRMWInst::LAST_BINOP)
return Error("Invalid ATOMICRMW record");
AtomicOrdering Ordering = GetDecodedOrdering(Record[OpNum+2]);
if (Ordering == NotAtomic)
if (Ordering == NotAtomic || Ordering == Unordered)
return Error("Invalid ATOMICRMW record");
SynchronizationScope SynchScope = GetDecodedSynchScope(Record[OpNum+3]);
I = new AtomicRMWInst(Operation, Ptr, Val, Ordering, SynchScope);