update comment.

llvm-svn: 49010
2008-04-01 00:54:39 +00:00 · 2008-04-01 00:54:39 +00:00 · ac17d39469
parent efecfbc113
commit ac17d39469
1 changed files with 3 additions and 2 deletions
--- a/llvm/include/llvm/CodeGen/MachineRegisterInfo.h
+++ b/llvm/include/llvm/CodeGen/MachineRegisterInfo.h
@ -21,8 +21,9 @@

 namespace llvm {
  
-/// MachineRegisterInfo - Keep track of information for each virtual register,
-/// including its register class.
+/// MachineRegisterInfo - Keep track of information for virtual and physical
+/// registers, including vreg register classes, use/def chains for registers,
+/// etc.
 class MachineRegisterInfo {
  /// VRegInfo - Information we keep for each virtual register.  The entries in
  /// this vector are actually converted to vreg numbers by adding the