Use individual register classes when spilling snippets.
The main register class may have been inflated by live range splitting, so that
register class is not necessarily valid for the snippet instructions.
Use the original register class for the stack slot interval.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128351 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveRangeEdit.h b/lib/CodeGen/LiveRangeEdit.h
index 0846961..0e03137 100644
--- a/lib/CodeGen/LiveRangeEdit.h
+++ b/lib/CodeGen/LiveRangeEdit.h
@@ -65,9 +65,6 @@
/// live range trimmed or entirely removed.
SmallPtrSet<const VNInfo*,4> rematted_;
- /// createFrom - Create a new virtual register based on OldReg.
- LiveInterval &createFrom(unsigned, LiveIntervals&, VirtRegMap &);
-
/// scanRemattable - Identify the parent_ values that may rematerialize.
void scanRemattable(LiveIntervals &lis,
const TargetInstrInfo &tii,
@@ -113,6 +110,9 @@
return uselessRegs_;
}
+ /// createFrom - Create a new virtual register based on OldReg.
+ LiveInterval &createFrom(unsigned OldReg, LiveIntervals&, VirtRegMap&);
+
/// create - Create a new register with the same class and original slot as
/// parent.
LiveInterval &create(LiveIntervals &LIS, VirtRegMap &VRM) {