Handle regmasks in CriticalAntiDepBreaker.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151223 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CriticalAntiDepBreaker.cpp b/lib/CodeGen/CriticalAntiDepBreaker.cpp
index 0751229..8249505 100644
--- a/lib/CodeGen/CriticalAntiDepBreaker.cpp
+++ b/lib/CodeGen/CriticalAntiDepBreaker.cpp
@@ -253,6 +253,17 @@
// address updates.
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
MachineOperand &MO = MI->getOperand(i);
+
+ if (MO.isRegMask())
+ for (unsigned i = 0, e = TRI->getNumRegs(); i != e; ++i)
+ if (MO.clobbersPhysReg(i)) {
+ DefIndices[i] = Count;
+ KillIndices[i] = ~0u;
+ KeepRegs.erase(i);
+ Classes[i] = 0;
+ RegRefs.erase(i);
+ }
+
if (!MO.isReg()) continue;
unsigned Reg = MO.getReg();
if (Reg == 0) continue;
@@ -355,6 +366,9 @@
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
const MachineOperand &CheckOper = MI->getOperand(i);
+ if (CheckOper.isRegMask() && CheckOper.clobbersPhysReg(NewReg))
+ return true;
+
if (!CheckOper.isReg() || !CheckOper.isDef() ||
CheckOper.getReg() != NewReg)
continue;