TableGen: Try to fix expensive checks failures

kosarev · Jan 27, 2020 · d2a9b87 · d2a9b87
1 parent 75d66f8
commit d2a9b87
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/llvm/utils/TableGen/CodeGenRegisters.cpp b/llvm/utils/TableGen/CodeGenRegisters.cpp
@@ -1011,7 +1011,7 @@ CodeGenRegisterClass::getMatchingSubClassWithSubRegs(
   for (auto &RC : RegClasses)
     if (SuperRegRCsBV[RC.EnumValue])
       SuperRegRCs.emplace_back(&RC);
-  llvm::sort(SuperRegRCs, SizeOrder);
+  llvm::stable_sort(SuperRegRCs, SizeOrder);
 
   assert(SuperRegRCs.front() == BiggestSuperRegRC &&
          "Biggest class wasn't first");