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Add memory fence

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This commit is contained in:
Siu Kwan Lam 2012-08-03 12:30:01 -07:00
commit f479f85676
6 changed files with 54 additions and 2 deletions
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11
llvm/extra.cpp
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@ -140,6 +140,17 @@ llvm::SynchronizationScope sync_scope_from_int(int crossthread)
return llvm::SingleThread;
}
LLVMValueRef LLVMBuildFence(LLVMBuilderRef builder, const char* ordering,
int crossthread)
{
using namespace llvm;
AtomicOrdering atomic_order = atomic_ordering_from_string(ordering);
SynchronizationScope sync_scope = sync_scope_from_int(crossthread);
Value * inst = unwrap(builder)->CreateFence(atomic_order, sync_scope);
return wrap(inst);
}
LLVMValueRef LLVMBuildAtomicRMW(LLVMBuilderRef builder, const char * opname,
LLVMValueRef ptr, LLVMValueRef val,
const char* ordering, int crossthread)