178 static bool isUseSpeciallyKnownDead(OpOperand &use, LiveMap &liveMap) {  in isUseSpeciallyKnownDead()  argument
195         return !liveMap.wasProvenLive(*arg);  in isUseSpeciallyKnownDead()
201 static void processValue(Value value, LiveMap &liveMap) {  in processValue()  argument
203     if (isUseSpeciallyKnownDead(use, liveMap))  in processValue()
205     return liveMap.wasProvenLive(use.getOwner());  in processValue()
208     liveMap.setProvedLive(value);  in processValue()
211 static void propagateLiveness(Region &region, LiveMap &liveMap);
213 static void propagateTerminatorLiveness(Operation *op, LiveMap &liveMap) {  in propagateTerminatorLiveness()  argument
215   liveMap.setProvedLive(op);  in propagateTerminatorLiveness()
222         liveMap.setProvedLive(arg);  in propagateTerminatorLiveness()
233       liveMap.setProvedLive(op->getSuccessor(i)->getArgument(opI));  in propagateTerminatorLiveness()
237 static void propagateLiveness(Operation *op, LiveMap &liveMap) {  in propagateLiveness()  argument
240     propagateLiveness(region, liveMap);  in propagateLiveness()
244     return propagateTerminatorLiveness(op, liveMap);  in propagateLiveness()
247   if (liveMap.wasProvenLive(op))  in propagateLiveness()
252     return liveMap.setProvedLive(op);  in propagateLiveness()
256     processValue(value, liveMap);  in propagateLiveness()
259 static void propagateLiveness(Region &region, LiveMap &liveMap) {  in propagateLiveness()  argument
267       propagateLiveness(&op, liveMap);  in propagateLiveness()
277       if (!liveMap.wasProvenLive(value))  in propagateLiveness()
278         processValue(value, liveMap);  in propagateLiveness()
284                                              LiveMap &liveMap) {  in eraseTerminatorSuccessorOperands()  argument
303       if (!liveMap.wasProvenLive(successor->getArgument(arg)))  in eraseTerminatorSuccessorOperands()
311                                     LiveMap &liveMap) {  in deleteDeadness()  argument
325         eraseTerminatorSuccessorOperands(block->getTerminator(), liveMap);  in deleteDeadness()
328         if (!liveMap.wasProvenLive(&childOp)) {  in deleteDeadness()
334               deleteDeadness(rewriter, childOp.getRegions(), liveMap));  in deleteDeadness()
343           [&](BlockArgument arg) { return !liveMap.wasProvenLive(arg); });  in deleteDeadness()
368   LiveMap liveMap;  in runRegionDCE()  local
370     liveMap.resetChanged();  in runRegionDCE()
373       propagateLiveness(region, liveMap);  in runRegionDCE()
374   } while (liveMap.hasChanged());  in runRegionDCE()
376   return deleteDeadness(rewriter, regions, liveMap);  in runRegionDCE()