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-rw-r--r--lib/CodeGen/RegAllocPBQP.cpp2
-rw-r--r--lib/CodeGen/VirtRegMap.cpp9
2 files changed, 10 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocPBQP.cpp b/lib/CodeGen/RegAllocPBQP.cpp
index 24442d7676..cdd92afe8a 100644
--- a/lib/CodeGen/RegAllocPBQP.cpp
+++ b/lib/CodeGen/RegAllocPBQP.cpp
@@ -526,7 +526,7 @@ void RegAllocPBQP::finalizeAlloc() const {
itr != end; ++itr) {
LiveInterval *li = &lis->getInterval(*itr);
- unsigned physReg = vrm->getRegAllocPref(li->reg);
+ unsigned physReg = mri->getSimpleHint(li->reg);
if (physReg == 0) {
const TargetRegisterClass *liRC = mri->getRegClass(li->reg);
diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp
index dcfad66414..820eed083b 100644
--- a/lib/CodeGen/VirtRegMap.cpp
+++ b/lib/CodeGen/VirtRegMap.cpp
@@ -88,6 +88,15 @@ unsigned VirtRegMap::getRegAllocPref(unsigned virtReg) {
return TRI->ResolveRegAllocHint(Hint.first, physReg, *MF);
}
+bool VirtRegMap::hasPreferredPhys(unsigned VirtReg) {
+ unsigned Hint = MRI->getSimpleHint(VirtReg);
+ if (!Hint)
+ return 0;
+ if (TargetRegisterInfo::isVirtualRegister(Hint))
+ Hint = getPhys(Hint);
+ return getPhys(VirtReg) == Hint;
+}
+
bool VirtRegMap::hasKnownPreference(unsigned VirtReg) {
std::pair<unsigned, unsigned> Hint = MRI->getRegAllocationHint(VirtReg);
if (TargetRegisterInfo::isPhysicalRegister(Hint.second))