Target/ARM/MVETailPredication.cpp

190 //        ceil(ElementCount / VectorWidth) >= TripCount
192 //        ((ElementCount + (VectorWidth - 1)) / VectorWidth
194 //        (((ElementCount + (VectorWidth - 1)) / VectorWidth) - TripCount
210   int VectorWidth =
212   if (VectorWidth != 2 && VectorWidth != 4 && VectorWidth != 8 &&
213       VectorWidth != 16)
229   // form i = i + 4, where the increment must be equal to the VectorWidth.
250   if (VectorWidth != StepValue) {
252                       << " doesn't match vector width " << VectorWidth << "\n");
270         (ConstElemCount->getZExtValue() + VectorWidth - 1) / VectorWidth;
286     //   ((ElementCount + VectorWidth - 1) / VectorWidth) - TripCount >= 0
290     //    TripCount == (ElementCount + VectorWidth - 1) / VectorWidth
294     auto *VW = SE->getSCEV(ConstantInt::get(TripCount->getType(), VectorWidth));
298         SE->getSCEV(ConstantInt::get(TripCount->getType(), VectorWidth - 1)));
311       dbgs() << "ARM TP: - VecWidth =  " << VectorWidth << "\n";
346   // Check that the start value is a multiple of the VectorWidth.
348   // VectorWidth. For the moment we just check for constants, muls and unknowns
351     if (BaseC->getAPInt().urem(VectorWidth) == 0)
356                                       Log2_64(VectorWidth));
362       if (BaseC->getAPInt().urem(VectorWidth) == 0)
365       if (BaseC->getAPInt().urem(VectorWidth) == 0)
380   unsigned VectorWidth =
391   ConstantInt *Factor = ConstantInt::get(cast<IntegerType>(Ty), VectorWidth);
394   switch (VectorWidth) {