Removed VNInfo::isDefAccurate(). Def "accuracy" can be checked by testing whether LiveIntervals::getInstructionFromIndex(def) returns NULL.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114791 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index 5c62354..a4fdcfa 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -431,8 +431,7 @@
unsigned CandReg;
{
MachineInstr *CopyMI;
- if (vni->def != SlotIndex() && vni->isDefAccurate() &&
- (CopyMI = li_->getInstructionFromIndex(vni->def)) && CopyMI->isCopy())
+ if ((CopyMI = li_->getInstructionFromIndex(vni->def)) && CopyMI->isCopy())
// Defined by a copy, try to extend SrcReg forward
CandReg = CopyMI->getOperand(1).getReg();
else if (TrivCoalesceEnds &&
@@ -800,7 +799,7 @@
if (SI.hasAtLeastOneValue())
VNI = SI.getValNumInfo(0);
else
- VNI = SI.getNextValue(SlotIndex(), 0, false,
+ VNI = SI.getNextValue(SlotIndex(), 0,
ls_->getVNInfoAllocator());
LiveInterval &RI = li_->getInterval(cur->reg);
@@ -984,8 +983,7 @@
// one, e.g. X86::mov32to32_. These move instructions are not coalescable.
if (!vrm_->getRegAllocPref(cur->reg) && cur->hasAtLeastOneValue()) {
VNInfo *vni = cur->begin()->valno;
- if ((vni->def != SlotIndex()) && !vni->isUnused() &&
- vni->isDefAccurate()) {
+ if (!vni->isUnused()) {
MachineInstr *CopyMI = li_->getInstructionFromIndex(vni->def);
if (CopyMI && CopyMI->isCopy()) {
unsigned DstSubReg = CopyMI->getOperand(0).getSubReg();