[MIR] Check that generic virtual registers get a size.

Without that check it was possible to write test cases where the size
was not specified and we ended up with weird asserts down the road,
because the default value (1) would not make sense.

llvm-svn: 272226

1 files changed, 3 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/MIRParser/MIParser.h b/llvm/lib/CodeGen/MIRParser/MIParser.h
index ce39805e0c5..3557b9a6d5d 100644
--- a/llvm/lib/CodeGen/MIRParser/MIParser.h
+++ b/llvm/lib/CodeGen/MIRParser/MIParser.h
@@ -15,6 +15,7 @@
 #define LLVM_LIB_CODEGEN_MIRPARSER_MIPARSER_H
 
 #include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallSet.h"
 
 namespace llvm {
 
@@ -35,6 +36,8 @@ struct PerFunctionMIParsingState {
   DenseMap<unsigned, int> StackObjectSlots;
   DenseMap<unsigned, unsigned> ConstantPoolSlots;
   DenseMap<unsigned, unsigned> JumpTableSlots;
+  /// Hold the generic virtual registers.
+  SmallSet<unsigned, 8> GenericVRegs;
 };
 
 /// Parse the machine basic block definitions, and skip the machine