X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FMachineTraceMetrics.h;h=460730b040591c7cebc0ecbc8945f5e228f7ffd5;hb=fb9ebbf236974beac31705eaeb9f50ab585af6ab;hp=d329c51634a1404b56c7fa4784975e78dedcbc1e;hpb=f43fe1d163b34e1de5d045773728c571b59d1cdd;p=oota-llvm.git

diff --git a/lib/CodeGen/MachineTraceMetrics.h b/lib/CodeGen/MachineTraceMetrics.h
index d329c51634a..460730b0405 100644
--- a/lib/CodeGen/MachineTraceMetrics.h
+++ b/lib/CodeGen/MachineTraceMetrics.h
@@ -165,6 +165,14 @@ public:
     /// Invalidate height resources when a block below this one has changed.
     void invalidateHeight() { InstrHeight = ~0u; HasValidInstrHeights = false; }
 
+    /// Determine if this block belongs to the same trace as TBI and comes
+    /// before it in the trace.
+    /// Also returns true when TBI == this.
+    bool isEarlierInSameTrace(const TraceBlockInfo &TBI) const {
+      return hasValidDepth() && TBI.hasValidDepth() &&
+        Head == TBI.Head && InstrDepth <= TBI.InstrDepth;
+    }
+
     // Data-dependency-related information. Per-instruction depth and height
     // are computed from data dependencies in the current trace, using
     // itinerary data.
@@ -271,7 +279,7 @@ public:
     unsigned computeCrossBlockCriticalPath(const TraceBlockInfo&);
     void computeInstrDepths(const MachineBasicBlock*);
     void computeInstrHeights(const MachineBasicBlock*);
-    void addLiveIns(const MachineInstr *DefMI,
+    void addLiveIns(const MachineInstr *DefMI, unsigned DefOp,
                     ArrayRef<const MachineBasicBlock*> Trace);
 
   protected: