[&]() { return RemarkCB(RemarkKind(DEBUG_TYPE, RemarkName, F)); });
}
+ /// RAII struct to temporarily change an RTL function's linkage to external.
+ /// This prevents it from being mistakenly removed by other optimizations.
+ struct ExternalizationRAII {
+ ExternalizationRAII(OMPInformationCache &OMPInfoCache,
+ RuntimeFunction RFKind)
+ : OMPInfoCache(OMPInfoCache),
+ Declaration(OMPInfoCache.RFIs[RFKind].Declaration) {
+ if (!Declaration)
+ return;
+
+ LinkageType = Declaration->getLinkage();
+ Declaration->setLinkage(GlobalValue::ExternalLinkage);
+ }
+
+ ~ExternalizationRAII() {
+ if (!Declaration)
+ return;
+
+ Declaration->setLinkage(LinkageType);
+ }
+
+ OMPInformationCache &OMPInfoCache;
+ Function *Declaration;
+ GlobalValue::LinkageTypes LinkageType;
+ };
+
/// The underlying module.
Module &M;
if (SCC.empty())
return false;
+ // Temporarily make these function have external linkage so the Attributor
+ // doesn't remove them when we try to look them up later.
+ ExternalizationRAII Parallel(OMPInfoCache, OMPRTL___kmpc_kernel_parallel);
+ ExternalizationRAII EndParallel(OMPInfoCache,
+ OMPRTL___kmpc_kernel_end_parallel);
+ ExternalizationRAII BarrierSPMD(OMPInfoCache,
+ OMPRTL___kmpc_barrier_simple_spmd);
+
registerAAs(IsModulePass);
ChangeStatus Changed = A.run();