Wrap MVT::ValueType in a struct to get type safety

and better control the abstraction.  Rename the type
to MVT.  To update out-of-tree patches, the main
thing to do is to rename MVT::ValueType to MVT, and
rewrite expressions like MVT::getSizeInBits(VT) in
the form VT.getSizeInBits().  Use VT.getSimpleVT()
to extract a MVT::SimpleValueType for use in switch
statements (you will get an assert failure if VT is
an extended value type - these shouldn't exist after
type legalization).
This results in a small speedup of codegen and no
new testsuite failures (x86-64 linux).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52044 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 3 deletions

diff --git a/utils/TableGen/CodeGenRegisters.h b/utils/TableGen/CodeGenRegisters.h
index 0f1b501..6f8682b 100644
--- a/utils/TableGen/CodeGenRegisters.h
+++ b/utils/TableGen/CodeGenRegisters.h
@@ -36,7 +36,7 @@ namespace llvm {
     Record *TheDef;
     std::string Namespace;
     std::vector<Record*> Elements;
-    std::vector<MVT::ValueType> VTs;
+    std::vector<MVT::SimpleValueType> VTs;
     unsigned SpillSize;
     unsigned SpillAlignment;
     int CopyCost;
@@ -44,10 +44,10 @@ namespace llvm {
     std::string MethodProtos, MethodBodies;
 
     const std::string &getName() const;
-    const std::vector<MVT::ValueType> &getValueTypes() const { return VTs; }
+    const std::vector<MVT::SimpleValueType> &getValueTypes() const {return VTs;}
     unsigned getNumValueTypes() const { return VTs.size(); }
     
-    MVT::ValueType getValueTypeNum(unsigned VTNum) const {
+    MVT::SimpleValueType getValueTypeNum(unsigned VTNum) const {
       if (VTNum < VTs.size())
         return VTs[VTNum];
       assert(0 && "VTNum greater than number of ValueTypes in RegClass!");