diff options
Diffstat (limited to 'lib/IR/Verifier.cpp')
-rw-r--r-- | lib/IR/Verifier.cpp | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/lib/IR/Verifier.cpp b/lib/IR/Verifier.cpp index 158601226a..4bdc1c13d0 100644 --- a/lib/IR/Verifier.cpp +++ b/lib/IR/Verifier.cpp @@ -1829,10 +1829,23 @@ void Verifier::visitAllocaInst(AllocaInst &AI) { } void Verifier::visitAtomicCmpXchgInst(AtomicCmpXchgInst &CXI) { - Assert1(CXI.getOrdering() != NotAtomic, + + // FIXME: more conditions??? + Assert1(CXI.getSuccessOrdering() != NotAtomic, + "cmpxchg instructions must be atomic.", &CXI); + Assert1(CXI.getFailureOrdering() != NotAtomic, "cmpxchg instructions must be atomic.", &CXI); - Assert1(CXI.getOrdering() != Unordered, + Assert1(CXI.getSuccessOrdering() != Unordered, "cmpxchg instructions cannot be unordered.", &CXI); + Assert1(CXI.getFailureOrdering() != Unordered, + "cmpxchg instructions cannot be unordered.", &CXI); + Assert1(CXI.getSuccessOrdering() >= CXI.getFailureOrdering(), + "cmpxchg instructions be at least as constrained on success as fail", + &CXI); + Assert1(CXI.getFailureOrdering() != Release && + CXI.getFailureOrdering() != AcquireRelease, + "cmpxchg failure ordering cannot include release semantics", &CXI); + PointerType *PTy = dyn_cast<PointerType>(CXI.getOperand(0)->getType()); Assert1(PTy, "First cmpxchg operand must be a pointer.", &CXI); Type *ElTy = PTy->getElementType(); |