[llvm] r324228 - [CodeGenSchedule][NFC] Always emit ProcResourceUnits.

[Clement Courbet via llvm-commits]

Author: courbet
Date: Mon Feb  5 04:23:51 2018
New Revision: 324228

URL: http://llvm.org/viewvc/llvm-project?rev=324228&view=rev
Log:
[CodeGenSchedule][NFC] Always emit ProcResourceUnits.

Summary:
Right now only the ProcResourceUnits that are directly referenced by
instructions are emitted. This change emits all of them, so that
analysis passes can use the information.
This has no functional impact. It typically adds a few entries (e.g. 4
for X86/haswell) to the generated ProcRes table.

Reviewers: gchatelet

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D42903

Modified:
    llvm/trunk/utils/TableGen/CodeGenSchedule.cpp

Modified: llvm/trunk/utils/TableGen/CodeGenSchedule.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/CodeGenSchedule.cpp?rev=324228&r1=324227&r2=324228&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/CodeGenSchedule.cpp (original)
+++ llvm/trunk/utils/TableGen/CodeGenSchedule.cpp Mon Feb  5 04:23:51 2018
@@ -1564,6 +1564,14 @@ void CodeGenSchedModels::collectProcReso
     if (!is_contained(PM.ProcResourceDefs, PRG))
       PM.ProcResourceDefs.push_back(PRG);
   }
+  // Add ProcResourceUnits unconditionally.
+  for (Record *PRU : Records.getAllDerivedDefinitions("ProcResourceUnits")) {
+    if (!PRU->getValueInit("SchedModel")->isComplete())
+      continue;
+    CodeGenProcModel &PM = getProcModel(PRU->getValueAsDef("SchedModel"));
+    if (!is_contained(PM.ProcResourceDefs, PRU))
+      PM.ProcResourceDefs.push_back(PRU);
+  }
   // Finalize each ProcModel by sorting the record arrays.
   for (CodeGenProcModel &PM : ProcModels) {
     std::sort(PM.WriteResDefs.begin(), PM.WriteResDefs.end(),