[misched] Fix a truncation issue from r263021.

The truncation was causing the sorting algorithm to behave oddly when comparing
positive and negative offsets.  Fortunately, this doesn't currently happen in
practice and was exposed by a WIP.  Thus, I can't test this change now, but the
follow on patch will.

llvm-svn: 263255

diff --git a/llvm/lib/CodeGen/MachineScheduler.cpp b/llvm/lib/CodeGen/MachineScheduler.cpp
index 7547ae3..18933a9 100644 (file)
--- a/llvm/lib/CodeGen/MachineScheduler.cpp
+++ b/llvm/lib/CodeGen/MachineScheduler.cpp
@@ -1362,7 +1362,7 @@ class LoadClusterMutation : public ScheduleDAGMutation {
     SUnit *SU;
     unsigned BaseReg;
     int64_t Offset;
-    LoadInfo(SUnit *su, unsigned reg, unsigned ofs)
+    LoadInfo(SUnit *su, unsigned reg, int64_t ofs)
       : SU(su), BaseReg(reg), Offset(ofs) {}
 
     bool operator<(const LoadInfo &RHS) const {