mi-sched: Precompute a PressureDiff for each instruction, adjust for liveness later.

Created SUPressureDiffs array to hold the per node PDiff computed during DAG building.

Added a getUpwardPressureDelta API that will soon replace the old
one. Compute PressureDelta here from the precomputed PressureDiffs.

Updating for liveness will come next.

llvm-svn: 189640

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Target/Hexagon/HexagonMachineScheduler.h b/llvm/lib/Target/Hexagon/HexagonMachineScheduler.h
index 171193e2307..8ac333fa7db 100644
--- a/llvm/lib/Target/Hexagon/HexagonMachineScheduler.h
+++ b/llvm/lib/Target/Hexagon/HexagonMachineScheduler.h
@@ -233,7 +233,7 @@ protected:
                                SchedCandidate &Candidate);
 #ifndef NDEBUG
   void traceCandidate(const char *Label, const ReadyQueue &Q, SUnit *SU,
-                      PressureElement P = PressureElement());
+                      PressureChange P = PressureChange());
 #endif
 };