X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FScoreboardHazardRecognizer.cpp;h=2cd84d670aaa7a96234e73d1fa8c695574dbb4f3;hb=5be77762a3aa434ee877b0a03b98b5c3a7571918;hp=ed5e4a3fec2f27605921f9515bddf9dd65db02a2;hpb=9905dbc3798b262c02637d528131ea536a1614b7;p=oota-llvm.git

diff --git a/lib/CodeGen/ScoreboardHazardRecognizer.cpp b/lib/CodeGen/ScoreboardHazardRecognizer.cpp
index ed5e4a3fec2..2cd84d670aa 100644
--- a/lib/CodeGen/ScoreboardHazardRecognizer.cpp
+++ b/lib/CodeGen/ScoreboardHazardRecognizer.cpp
@@ -72,10 +72,12 @@ ScoreboardHazardRecognizer(const InstrItineraryData *II,
   ReservedScoreboard.reset(ScoreboardDepth);
   RequiredScoreboard.reset(ScoreboardDepth);
 
+  // If MaxLookAhead is not set above, then we are not enabled.
   if (!isEnabled())
     DEBUG(dbgs() << "Disabled scoreboard hazard recognizer\n");
   else {
-    IssueWidth = ItinData->Props.IssueWidth;
+    // A nonempty itinerary must have a SchedModel.
+    IssueWidth = ItinData->SchedModel->IssueWidth;
     DEBUG(dbgs() << "Using scoreboard hazard recognizer: Depth = "
           << ScoreboardDepth << '\n');
   }
@@ -87,6 +89,7 @@ void ScoreboardHazardRecognizer::Reset() {
   ReservedScoreboard.reset();
 }
 
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
 void ScoreboardHazardRecognizer::Scoreboard::dump() const {
   dbgs() << "Scoreboard:\n";
 
@@ -95,13 +98,14 @@ void ScoreboardHazardRecognizer::Scoreboard::dump() const {
     last--;
 
   for (unsigned i = 0; i <= last; i++) {
-    uint64_t FUs = (*this)[i];
+    unsigned FUs = (*this)[i];
     dbgs() << "\t";
-    for (int j = 63; j >= 0; j--)
-      dbgs() << ((FUs & (1ULL << j)) ? '1' : '0');
+    for (int j = 31; j >= 0; j--)
+      dbgs() << ((FUs & (1 << j)) ? '1' : '0');
     dbgs() << '\n';
   }
 }
+#endif
 
 bool ScoreboardHazardRecognizer::atIssueLimit() const {
   if (IssueWidth == 0)
@@ -144,7 +148,7 @@ ScoreboardHazardRecognizer::getHazardType(SUnit *SU, int Stalls) {
         break;
       }
 
-      uint64_t freeUnits = IS->getUnits();
+      unsigned freeUnits = IS->getUnits();
       switch (IS->getReservationKind()) {
       case InstrStage::Required:
         // Required FUs conflict with both reserved and required ones
@@ -196,7 +200,7 @@ void ScoreboardHazardRecognizer::EmitInstruction(SUnit *SU) {
       assert(((cycle + i) < RequiredScoreboard.getDepth()) &&
              "Scoreboard depth exceeded!");
 
-      uint64_t freeUnits = IS->getUnits();
+      unsigned freeUnits = IS->getUnits();
       switch (IS->getReservationKind()) {
       case InstrStage::Required:
         // Required FUs conflict with both reserved and required ones
@@ -209,7 +213,7 @@ void ScoreboardHazardRecognizer::EmitInstruction(SUnit *SU) {
       }
 
       // reduce to a single unit
-      uint64_t freeUnit = 0;
+      unsigned freeUnit = 0;
       do {
         freeUnit = freeUnits;
         freeUnits = freeUnit & (freeUnit - 1);