misched: Allow flags to disable hasInstrSchedModel/hasInstrItineraries for external users of TargetSchedule.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165564 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TargetSchedule.cpp b/lib/CodeGen/TargetSchedule.cpp
index 2c98982..6e7cccc 100644
--- a/lib/CodeGen/TargetSchedule.cpp
+++ b/lib/CodeGen/TargetSchedule.cpp
@@ -27,6 +27,14 @@
static cl::opt<bool> EnableSchedItins("scheditins", cl::Hidden, cl::init(true),
cl::desc("Use InstrItineraryData for latency lookup"));
+bool TargetSchedModel::hasInstrSchedModel() const {
+ return EnableSchedModel && SchedModel.hasInstrSchedModel();
+}
+
+bool TargetSchedModel::hasInstrItineraries() const {
+ return EnableSchedItins && !InstrItins.isEmpty();
+}
+
void TargetSchedModel::init(const MCSchedModel &sm,
const TargetSubtargetInfo *sti,
const TargetInstrInfo *tii) {
@@ -47,14 +55,12 @@
if (FindMin) {
// If MinLatency is invalid, then use the itinerary for MinLatency. If no
// itinerary exists either, then use single cycle latency.
- if (SchedModel.MinLatency < 0
- && !(EnableSchedItins && hasInstrItineraries())) {
+ if (SchedModel.MinLatency < 0 && !hasInstrItineraries()) {
return 1;
}
return SchedModel.MinLatency;
}
- else if (!(EnableSchedModel && hasInstrSchedModel())
- && !(EnableSchedItins && hasInstrItineraries())) {
+ else if (!hasInstrSchedModel() && !hasInstrItineraries()) {
return TII->defaultDefLatency(&SchedModel, DefMI);
}
// ...operand lookup required
@@ -123,7 +129,7 @@
if (DefLatency >= 0)
return DefLatency;
- if (EnableSchedItins && hasInstrItineraries()) {
+ if (hasInstrItineraries()) {
int OperLatency = 0;
if (UseMI) {
OperLatency =
@@ -145,7 +151,7 @@
TII->defaultDefLatency(&SchedModel, DefMI));
return InstrLatency;
}
- assert(!FindMin && EnableSchedModel && hasInstrSchedModel() &&
+ assert(!FindMin && hasInstrSchedModel() &&
"Expected a SchedModel for this cpu");
const MCSchedClassDesc *SCDesc = resolveSchedClass(DefMI);
unsigned DefIdx = findDefIdx(DefMI, DefOperIdx);