fix CodeGenTarget::getRegisterVTs to not return the

same vt multiple times for a register.  For example,
ECX is in 5 different i32 reg classes, just return 
1 i32 instead of 5.

llvm-svn: 99727

llvm/utils/TableGen/CodeGenDAGPatterns.cpp

@@ -61,9 +61,9 @@ EEVT::TypeSet::TypeSet(const std::vector<MVT::SimpleValueType> &VTList) {
     assert(VTList[0] != MVT::iAny && VTList[0] != MVT::vAny &&
            VTList[0] != MVT::fAny);
   
-  // Remove duplicates.
+  // Verify no duplicates.
   array_pod_sort(TypeVec.begin(), TypeVec.end());
-  TypeVec.erase(std::unique(TypeVec.begin(), TypeVec.end()), TypeVec.end());
+  assert(std::unique(TypeVec.begin(), TypeVec.end()) == TypeVec.end());
 }
 
 /// FillWithPossibleTypes - Set to all legal types and return true, only valid

llvm/utils/TableGen/CodeGenTarget.cpp

@@ -18,6 +18,7 @@
 #include "CodeGenIntrinsics.h"
 #include "Record.h"
 #include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/STLExtras.h"
 #include "llvm/Support/CommandLine.h"
 #include <algorithm>
 using namespace llvm;
@@ -194,6 +195,10 @@ getRegisterVTs(Record *R) const {
       }
     }
   }
+  
+  // Remove duplicates.
+  array_pod_sort(Result.begin(), Result.end());
+  Result.erase(std::unique(Result.begin(), Result.end()), Result.end());
   return Result;
 }