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).

llvm-svn: 52044

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.h b/llvm/lib/Target/PowerPC/PPCISelLowering.h
index d28799ad582..34012ffb10d 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.h
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.h
@@ -235,7 +235,7 @@ namespace llvm {
     virtual const char *getTargetNodeName(unsigned Opcode) const;
 
     /// getSetCCResultType - Return the ISD::SETCC ValueType
-    virtual MVT::ValueType getSetCCResultType(const SDOperand &) const;
+    virtual MVT getSetCCResultType(const SDOperand &) const;
 
     /// getPreIndexedAddressParts - returns true by value, base pointer and
     /// offset pointer and addressing mode by reference if the node's address
@@ -290,7 +290,7 @@ namespace llvm {
     ConstraintType getConstraintType(const std::string &Constraint) const;
     std::pair<unsigned, const TargetRegisterClass*> 
       getRegForInlineAsmConstraint(const std::string &Constraint,
-                                   MVT::ValueType VT) const;
+                                   MVT VT) const;
 
     /// getByValTypeAlignment - Return the desired alignment for ByVal aggregate
     /// function arguments in the caller parameter area.  This is the actual