Extract LaneBitmask into a separate type
Specifically avoid implicit conversions from/to integral types to
avoid potential errors when changing the underlying type. For example,
a typical initialization of a "full" mask was "LaneMask = ~0u", which
would result in a value of 0x00000000FFFFFFFF if the type was extended
to uint64_t.
Differential Revision: https://reviews.llvm.org/D27454
llvm-svn: 289820
diff --git a/llvm/lib/CodeGen/MachinePipeliner.cpp b/llvm/lib/CodeGen/MachinePipeliner.cpp
index 23d7c60..c908681 100644
--- a/llvm/lib/CodeGen/MachinePipeliner.cpp
+++ b/llvm/lib/CodeGen/MachinePipeliner.cpp
@@ -1742,11 +1742,13 @@
unsigned Reg = MO.getReg();
if (TargetRegisterInfo::isVirtualRegister(Reg)) {
if (!Uses.count(Reg))
- LiveOutRegs.push_back(RegisterMaskPair(Reg, 0));
+ LiveOutRegs.push_back(RegisterMaskPair(Reg,
+ LaneBitmask::getNone()));
} else if (MRI.isAllocatable(Reg)) {
for (MCRegUnitIterator Units(Reg, TRI); Units.isValid(); ++Units)
if (!Uses.count(*Units))
- LiveOutRegs.push_back(RegisterMaskPair(*Units, 0));
+ LiveOutRegs.push_back(RegisterMaskPair(*Units,
+ LaneBitmask::getNone()));
}
}
RPTracker.addLiveRegs(LiveOutRegs);