142         uint64_t Len = GetStringLength(CI->getArgOperand(SizeArgOp));  in isFoldable()  local
145         if (Len == 0) return false;  in isFoldable()
146         return SizeCI->getZExtValue() >= Len;  in isFoldable()
255       uint64_t Len = GetStringLength(Src);  in callOptimizer()  local
256       if (Len == 0) return 0;  in callOptimizer()
263                       ConstantInt::get(TD->getIntPtrType(Context), Len),  in callOptimizer()
302       uint64_t Len = GetStringLength(Src);  in callOptimizer()  local
303       if (Len == 0) return 0;  in callOptimizer()
309       Value *LenV = ConstantInt::get(TD->getIntPtrType(PT), Len);  in callOptimizer()
312                                                    Len - 1));  in callOptimizer()
365     uint64_t Len = GetStringLength(Src);  in callOptimizer()  local
366     if (Len == 0) return 0;  in callOptimizer()
367     --Len;  // Unbias length.  in callOptimizer()
370     if (Len == 0)  in callOptimizer()
376     return emitStrLenMemCpy(Src, Dst, Len, B);  in callOptimizer()
379   Value *emitStrLenMemCpy(Value *Src, Value *Dst, uint64_t Len,  in emitStrLenMemCpy()
395                    ConstantInt::get(TD->getIntPtrType(*Context), Len + 1), 1);  in emitStrLenMemCpy()
414     uint64_t Len;  in callOptimizer()  local
418       Len = LengthArg->getZExtValue();  in callOptimizer()
430     if (SrcLen == 0 || Len == 0) return Dst;  in callOptimizer()
436     if (Len < SrcLen) return 0;  in callOptimizer()
463       uint64_t Len = GetStringLength(SrcStr);  in callOptimizer()  local
464       if (Len == 0 || !FT->getParamType(1)->isIntegerTy(32))// memchr needs i32.  in callOptimizer()
468                         ConstantInt::get(TD->getIntPtrType(*Context), Len),  in callOptimizer()
639     uint64_t Len = GetStringLength(Src);  in callOptimizer()  local
640     if (Len == 0) return 0;  in callOptimizer()
645 		   ConstantInt::get(TD->getIntPtrType(*Context), Len), 1);  in callOptimizer()
670     uint64_t Len = GetStringLength(Src);  in callOptimizer()  local
671     if (Len == 0) return 0;  in callOptimizer()
674     Value *LenV = ConstantInt::get(TD->getIntPtrType(PT), Len);  in callOptimizer()
677                                                  Len - 1));  in callOptimizer()
710     uint64_t Len;  in callOptimizer()  local
712       Len = LengthArg->getZExtValue();  in callOptimizer()
716     if (Len == 0) return Dst; // strncpy(x, y, 0) -> x  in callOptimizer()
722     if (Len > SrcLen+1) return 0;  in callOptimizer()
727                    ConstantInt::get(TD->getIntPtrType(PT), Len), 1);  in callOptimizer()
745     if (uint64_t Len = GetStringLength(Src))  in callOptimizer()  local
746       return ConstantInt::get(CI->getType(), Len-1);  in callOptimizer()
951     uint64_t Len = LenC->getZExtValue();  in callOptimizer()  local
953     if (Len == 0) // memcmp(s1,s2,0) -> 0  in callOptimizer()
957     if (Len == 1) {  in callOptimizer()
970       if (Len > LHSStr.size() || Len > RHSStr.size())  in callOptimizer()
975       int Cmp = memcmp(LHSStr.data(), RHSStr.data(), Len);  in callOptimizer()
1472       Value *Len = EmitStrLen(CI->getArgOperand(2), B, TD, TLI);  in OptimizeFixedFormatString()  local
1473       if (!Len)  in OptimizeFixedFormatString()
1475       Value *IncLen = B.CreateAdd(Len,  in OptimizeFixedFormatString()
1476                                   ConstantInt::get(Len->getType(), 1),  in OptimizeFixedFormatString()
1481       return B.CreateIntCast(Len, CI->getType(), false);  in OptimizeFixedFormatString()
1637     uint64_t Len = GetStringLength(CI->getArgOperand(0));  in callOptimizer()  local
1638     if (!Len) return 0;  in callOptimizer()
1641                       ConstantInt::get(TD->getIntPtrType(*Context), Len-1),  in callOptimizer()