189   ConstantInt *CharC = dyn_cast<ConstantInt>(CI->getArgOperand(1));  in optimizeStrChr()  local
190   if (!CharC) {  in optimizeStrChr()
204     if (CharC->isZero()) // strchr(p, 0) -> p + strlen(p)  in optimizeStrChr()
212   size_t I = (0xFF & CharC->getSExtValue()) == 0  in optimizeStrChr()
214                  : Str.find(CharC->getSExtValue());  in optimizeStrChr()
224   ConstantInt *CharC = dyn_cast<ConstantInt>(CI->getArgOperand(1));  in optimizeStrRChr()  local
227   if (!CharC)  in optimizeStrRChr()
233     if (CharC->isZero())  in optimizeStrRChr()
239   size_t I = (0xFF & CharC->getSExtValue()) == 0  in optimizeStrRChr()
241                  : Str.rfind(CharC->getSExtValue());  in optimizeStrRChr()
620   ConstantInt *CharC = dyn_cast<ConstantInt>(CI->getArgOperand(1));  in optimizeMemChr()  local
646   if (!CharC && !Str.empty() && isOnlyUsedInZeroEqualityComparison(CI)) {  in optimizeMemChr()
684   if (!CharC)  in optimizeMemChr()
688   size_t I = Str.find(CharC->getSExtValue() & 0xFF);  in optimizeMemChr()