Merge MRI::isPhysRegOrOverlapUsed() into isPhysRegUsed().
All callers of these functions really want the isPhysRegOrOverlapUsed()
functionality which also checks aliases. For historical reasons, targets
without register aliases were calling isPhysRegUsed() instead.
Change isPhysRegUsed() to also check aliases, and switch all
isPhysRegOrOverlapUsed() callers to isPhysRegUsed().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166117 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMFrameLowering.cpp b/lib/Target/ARM/ARMFrameLowering.cpp
index 3e70d57..1d4bbb7 100644
--- a/lib/Target/ARM/ARMFrameLowering.cpp
+++ b/lib/Target/ARM/ARMFrameLowering.cpp
@@ -1176,7 +1176,7 @@
MachineRegisterInfo &MRI = MF.getRegInfo();
unsigned NumSpills = 0;
for (; NumSpills < 8; ++NumSpills)
- if (!MRI.isPhysRegOrOverlapUsed(ARM::D8 + NumSpills))
+ if (!MRI.isPhysRegUsed(ARM::D8 + NumSpills))
break;
// Don't do this for just one d-register. It's not worth it.
@@ -1249,7 +1249,7 @@
for (unsigned i = 0; CSRegs[i]; ++i) {
unsigned Reg = CSRegs[i];
bool Spilled = false;
- if (MF.getRegInfo().isPhysRegOrOverlapUsed(Reg)) {
+ if (MF.getRegInfo().isPhysRegUsed(Reg)) {
Spilled = true;
CanEliminateFrame = false;
}