MachineModel: Add a ProcResGroup class.
This allows abitrary groups of processor resources. Using something in
a subset automatically counts againts the superset. Currently, this
only works if the superset is also a ProcResGroup as opposed to a
SuperUnit.
This allows SandyBridge to be expressed naturally, which will be
checked in shortly.
def SBPort01 : ProcResGroup<[SBPort0, SBPort1]>;
def SBPort15 : ProcResGroup<[SBPort1, SBPort5]>;
def SBPort23 : ProcResGroup<[SBPort2, SBPort3]>;
def SBPort015 : ProcResGroup<[SBPort0, SBPort1, SBPort5]>;
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177112 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenSchedule.cpp b/utils/TableGen/CodeGenSchedule.cpp
index 23b79fc..92408c4 100644
--- a/utils/TableGen/CodeGenSchedule.cpp
+++ b/utils/TableGen/CodeGenSchedule.cpp
@@ -1542,6 +1542,20 @@
ProcUnitDef = *RI;
}
}
+ RecVec ProcResGroups = Records.getAllDerivedDefinitions("ProcResGroup");
+ for (RecIter RI = ProcResGroups.begin(), RE = ProcResGroups.end();
+ RI != RE; ++RI) {
+
+ if (*RI == ProcResKind
+ && (*RI)->getValueAsDef("SchedModel") == PM.ModelDef) {
+ if (ProcUnitDef) {
+ PrintFatalError((*RI)->getLoc(),
+ "Multiple ProcessorResourceUnits associated with "
+ + ProcResKind->getName());
+ }
+ ProcUnitDef = *RI;
+ }
+ }
if (!ProcUnitDef) {
PrintFatalError(ProcResKind->getLoc(),
"No ProcessorResources associated with "
@@ -1563,6 +1577,9 @@
return;
PM.ProcResourceDefs.push_back(ProcResUnits);
+ if (ProcResUnits->isSubClassOf("ProcResGroup"))
+ return;
+
if (!ProcResUnits->getValueInit("Super")->isComplete())
return;