Lines Matching defs:MB
322 static bool isRunOfOnes(ConstantInt *Val, uint32_t &MB, uint32_t &ME) {
328 MB = BitWidth - ((V - 1) ^ V).countLeadingZeros();
366 uint32_t MB = 0, ME = 0;
367 if (isRunOfOnes(Mask, MB, ME)) { // begin/end bit of run, inclusive
369 APInt Mask(APInt::getLowBitsSet(BitWidth, MB-1));
