Simplify some more getAliasSet callers.
MCRegAliasIterator can include Reg itself in the list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157848 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
index 24da432..b7ce48a 100644
--- a/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
+++ b/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
@@ -441,19 +441,14 @@
SmallVector<unsigned, 4> &LRegs,
const TargetRegisterInfo *TRI) {
bool Added = false;
- if (LiveRegDefs[Reg] && LiveRegDefs[Reg] != SU) {
- if (RegAdded.insert(Reg)) {
- LRegs.push_back(Reg);
- Added = true;
- }
- }
- for (const uint16_t *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias)
- if (LiveRegDefs[*Alias] && LiveRegDefs[*Alias] != SU) {
- if (RegAdded.insert(*Alias)) {
- LRegs.push_back(*Alias);
+ for (MCRegAliasIterator AI(Reg, TRI, true); AI.isValid(); ++AI) {
+ if (LiveRegDefs[*AI] && LiveRegDefs[*AI] != SU) {
+ if (RegAdded.insert(*AI)) {
+ LRegs.push_back(*AI);
Added = true;
}
}
+ }
return Added;
}