Simplify a bunch of isVirtualRegister() and isPhysicalRegister() logic.
These functions not longer assert when passed 0, but simply return false instead.
No functional change intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123155 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/lib/Target/ARM/ARMBaseRegisterInfo.cpp
index 9928105..e1f179e 100644
--- a/lib/Target/ARM/ARMBaseRegisterInfo.cpp
+++ b/lib/Target/ARM/ARMBaseRegisterInfo.cpp
@@ -517,7 +517,7 @@
std::pair<unsigned, unsigned> Hint = MRI->getRegAllocationHint(Reg);
if ((Hint.first == (unsigned)ARMRI::RegPairOdd ||
Hint.first == (unsigned)ARMRI::RegPairEven) &&
- Hint.second && TargetRegisterInfo::isVirtualRegister(Hint.second)) {
+ TargetRegisterInfo::isVirtualRegister(Hint.second)) {
// If 'Reg' is one of the even / odd register pair and it's now changed
// (e.g. coalesced) into a different register. The other register of the
// pair allocation hint must be updated to reflect the relationship