Summary:
Fix a case when first register in a search has maximum
RegUses.getUsedByIndices(Reg).count()
Reviewers: qcolombet
Differential Revision: http://reviews.llvm.org/D26877
From: Evgeny Stupachenko <evstupac@gmail.com>
llvm-svn: 288278
for (const SCEV *Reg : RegUses) {
if (Taken.count(Reg))
continue;
- if (!Best)
+ if (!Best) {
Best = Reg;
- else {
+ BestNum = RegUses.getUsedByIndices(Reg).count();
+ } else {
unsigned Count = RegUses.getUsedByIndices(Reg).count();
if (Count > BestNum) {
Best = Reg;