diff options
| -rw-r--r-- | include/llvm/Target/MRegisterInfo.h | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/include/llvm/Target/MRegisterInfo.h b/include/llvm/Target/MRegisterInfo.h index 7b28d5eeb6..0e0d5a2748 100644 --- a/include/llvm/Target/MRegisterInfo.h +++ b/include/llvm/Target/MRegisterInfo.h @@ -208,20 +208,14 @@ protected: public: enum { // Define some target independent constants - /// NoRegister - This 'hard' register is a 'noop' register for all backends. - /// This is used as the destination register for instructions that do not - /// produce a value. Some frontends may use this as an operand register to - /// mean special things, for example, the Sparc backend uses R0 to mean %g0 - /// which always PRODUCES the value 0. The X86 backend does not use this - /// value as an operand register, except for memory references. - /// + /// NoRegister - This physical register is not a real target register. It + /// is useful as a sentinal. NoRegister = 0, /// FirstVirtualRegister - This is the first register number that is /// considered to be a 'virtual' register, which is part of the SSA /// namespace. This must be the same for all targets, which means that each /// target is limited to 1024 registers. - /// FirstVirtualRegister = 1024 }; |