Use newly added API in MRegisterInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16060 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 6cf95d2..14bccf6 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -87,6 +87,7 @@
tm_ = &fn.getTarget();
mri_ = tm_->getRegisterInfo();
lv_ = &getAnalysis<LiveVariables>();
+ allocatableRegs_ = mri_->getAllocatableSet(fn);
// number MachineInstrs
unsigned miIndex = 0;
@@ -484,7 +485,7 @@
unsigned reg) {
if (MRegisterInfo::isVirtualRegister(reg))
handleVirtualRegisterDef(MBB, MI, getOrCreateInterval(reg));
- else if (lv_->getAllocatablePhysicalRegisters()[reg]) {
+ else if (allocatableRegs_[reg]) {
handlePhysicalRegisterDef(MBB, MI, getOrCreateInterval(reg));
for (const unsigned* AS = mri_->getAliasSet(reg); *AS; ++AS)
handlePhysicalRegisterDef(MBB, MI, getOrCreateInterval(*AS));
@@ -541,10 +542,8 @@
// on not allocatable physical registers
unsigned regA, regB;
if (TII.isMoveInstr(*mi, regA, regB) &&
- (MRegisterInfo::isVirtualRegister(regA) ||
- lv_->getAllocatablePhysicalRegisters()[regA]) &&
- (MRegisterInfo::isVirtualRegister(regB) ||
- lv_->getAllocatablePhysicalRegisters()[regB])) {
+ (MRegisterInfo::isVirtualRegister(regA) || allocatableRegs_[regA]) &&
+ (MRegisterInfo::isVirtualRegister(regB) || allocatableRegs_[regB])) {
// Get representative registers.
regA = rep(regA);