[llvm] r328139 - [TableGen] Remove unnecessary map lookup and shadowing of a variable. NFCI

[Craig Topper via llvm-commits]

Author: ctopper
Date: Wed Mar 21 12:30:33 2018
New Revision: 328139

URL: http://llvm.org/viewvc/llvm-project?rev=328139&view=rev
Log:
[TableGen] Remove unnecessary map lookup and shadowing of a variable. NFCI

We already have an OldSCIdx variable in the outer loop here. And we already did the map lookup in the loop that populated ClassInstrs. And the outer OldSCIdx got it from ClassInstrs.

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=328139&r1=328138&r2=328139&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/CodeGenSchedule.cpp (original)
+++ llvm/trunk/utils/TableGen/CodeGenSchedule.cpp Wed Mar 21 12:30:33 2018
@@ -805,7 +805,6 @@ void CodeGenSchedModels::createInstRWCla
     Record *RWModelDef = InstRWDef->getValueAsDef("SchedModel");
     SmallSet<unsigned, 4> RemappedClassIDs;
     for (Record *InstDef : InstDefs) {
-      unsigned OldSCIdx = InstrClassMap[InstDef];
       if (OldSCIdx && RemappedClassIDs.insert(OldSCIdx).second) {
         for (Record *OldRWDef : SchedClasses[OldSCIdx].InstRWs) {
           if (OldRWDef->getValueAsDef("SchedModel") == RWModelDef) {