Improved tracking of value number kills. VN kills are now represented
as an (index,bool) pair. The bool flag records whether the kill is a
PHI kill or not. This code will be used to enable splitting of live
intervals containing PHI-kills.
A slight change to live interval weights introduced an extra spill
into lsr-code-insertion (outside the critical sections). The test
condition has been updated to reflect this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75097 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveInterval.cpp b/lib/CodeGen/LiveInterval.cpp
index 26722a3..b786b1d 100644
--- a/lib/CodeGen/LiveInterval.cpp
+++ b/lib/CodeGen/LiveInterval.cpp
@@ -377,8 +377,9 @@
vni->def = InstrSlots::scale(vni->def, factor);
for (unsigned i = 0; i < vni->kills.size(); ++i) {
- if (vni->kills[i] != 0)
- vni->kills[i] = InstrSlots::scale(vni->kills[i], factor);
+ if (!vni->kills[i].isPHIKill)
+ vni->kills[i].killIdx =
+ InstrSlots::scale(vni->kills[i].killIdx, factor);
}
}
}
@@ -840,7 +841,9 @@
if (ee || vni->hasPHIKill()) {
OS << "-(";
for (unsigned j = 0; j != ee; ++j) {
- OS << vni->kills[j];
+ OS << vni->kills[j].killIdx;
+ if (vni->kills[j].isPHIKill)
+ OS << "*";
if (j != ee-1)
OS << " ";
}