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, 1 insertions, 2 deletions

diff --git a/llvm/lib/Target/TargetRegisterInfo.cpp b/llvm/lib/Target/TargetRegisterInfo.cpp
index 9c8de12108c..3f44a0cb5a3 100644
--- a/llvm/lib/Target/TargetRegisterInfo.cpp
+++ b/llvm/lib/Target/TargetRegisterInfo.cpp
@@ -48,8 +48,7 @@ namespace {
 /// register of the given type. If type is MVT::Other, then just return any
 /// register class the register belongs to.
 const TargetRegisterClass *
-TargetRegisterInfo::getPhysicalRegisterRegClass(unsigned reg,
-                                                MVT::ValueType VT) const {
+TargetRegisterInfo::getPhysicalRegisterRegClass(unsigned reg, MVT VT) const {
   assert(isPhysicalRegister(reg) && "reg must be a physical register");
 
   // Pick the register class of the right type that contains this physreg.