- assert(regMask != 0 && "Couldn't find register mask.");
- regMaskOverlaps.setBitsNotInMask(regMask);
- }
- }
-
- for (unsigned preg = 0; preg < tri->getNumRegs(); ++preg) {
- if (regMaskOverlaps.test(preg))
- overlappingPRegs.insert(preg);
- }
-
- for (RegSet::const_iterator pregItr = overlappingPRegs.begin(),
- pregEnd = overlappingPRegs.end();
- pregItr != pregEnd; ++pregItr) {
- unsigned preg = *pregItr;
-
- // Remove the register from the allowed set.
- VRAllowed::iterator eraseItr =
- std::find(vrAllowed.begin(), vrAllowed.end(), preg);
-
- if (eraseItr != vrAllowed.end()) {
- vrAllowed.erase(eraseItr);