mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-03-19 19:31:50 +00:00
Don't call isInvariantLoad twice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63729 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
45e94d68d7
commit
5caa883afc
@ -276,18 +276,11 @@ static bool HasOnlyPHIUses(unsigned Reg, MachineRegisterInfo *RegInfo) {
|
||||
bool MachineLICM::IsProfitableToHoist(MachineInstr &MI) {
|
||||
const TargetInstrDesc &TID = MI.getDesc();
|
||||
|
||||
bool isInvLoad = false;
|
||||
if (TID.mayLoad()) {
|
||||
isInvLoad = TII->isInvariantLoad(&MI);
|
||||
if (!isInvLoad)
|
||||
return false;
|
||||
}
|
||||
|
||||
// FIXME: For now, only hoist re-materilizable instructions. LICM will
|
||||
// increase register pressure. We want to make sure it doesn't increase
|
||||
// spilling.
|
||||
if (!isInvLoad && (!TID.isRematerializable() ||
|
||||
!TII->isTriviallyReMaterializable(&MI)))
|
||||
if (!TID.mayLoad() && (!TID.isRematerializable() ||
|
||||
!TII->isTriviallyReMaterializable(&MI)))
|
||||
return false;
|
||||
|
||||
if (!TID.isAsCheapAsAMove())
|
||||
|
Loading…
x
Reference in New Issue
Block a user