[llvm] r304097 - [TableGen][X86] Add an llvm_unreachable to a switch so we get an error if we need expansion in the future.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Sun May 28 13:24:37 2017
New Revision: 304097

URL: http://llvm.org/viewvc/llvm-project?rev=304097&view=rev
Log:
[TableGen][X86] Add an llvm_unreachable to a switch so we get an error if we need expansion in the future.

Modified:
    llvm/trunk/utils/TableGen/X86FoldTablesEmitter.cpp

Modified: llvm/trunk/utils/TableGen/X86FoldTablesEmitter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/X86FoldTablesEmitter.cpp?rev=304097&r1=304096&r2=304097&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/X86FoldTablesEmitter.cpp (original)
+++ llvm/trunk/utils/TableGen/X86FoldTablesEmitter.cpp Sun May 28 13:24:37 2017
@@ -585,6 +585,7 @@ void X86FoldTablesEmitter::updateTables(
       Record *MemOpRec = MemInstr->Operands[i].Rec;
       if (isRegisterOperand(RegOpRec) && isMemoryOperand(MemOpRec)) {
         switch (i) {
+        default: llvm_unreachable("Unexpected operand count!");
         case 0:
           addEntryWithFlags(Table0, RegInstr, MemInstr, S, 0);
           return;