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, 1 insertions, 1 deletions

diff --git a/lib/Target/X86/X86RegisterInfo.h b/lib/Target/X86/X86RegisterInfo.h
index 40fdfb0..93e8613 100644
--- a/lib/Target/X86/X86RegisterInfo.h
+++ b/lib/Target/X86/X86RegisterInfo.h
@@ -150,7 +150,7 @@ public:
 // getX86SubSuperRegister - X86 utility function. It returns the sub or super
 // register of a specific X86 register.
 // e.g. getX86SubSuperRegister(X86::EAX, MVT::i16) return X86:AX
-unsigned getX86SubSuperRegister(unsigned, MVT::ValueType, bool High=false);
+unsigned getX86SubSuperRegister(unsigned, MVT, bool High=false);
 
 } // End llvm namespace