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-rw-r--r--lib/Target/Target.td10
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/Target/Target.td b/lib/Target/Target.td
index fc79f59204..8ef76a611c 100644
--- a/lib/Target/Target.td
+++ b/lib/Target/Target.td
@@ -46,7 +46,7 @@ def isVoid : ValueType<0 , 12>; // Produces no value
// Register - You should define one instance of this class for each register
// in the target machine. String n will become the "name" of the register.
-class RegisterBase<string n> {
+class Register<string n> {
string Namespace = "";
string Name = n;
@@ -60,10 +60,12 @@ class RegisterBase<string n> {
// spilling the register. Like SpillSize, this should only be explicitly
// specified if the register is not in a register class.
int SpillAlignment = 0;
-}
-class Register<string n> : RegisterBase<n> {
- list<RegisterBase> Aliases = [];
+ // Aliases - A list of registers that this register overlaps with. A read or
+ // modification of this register can potentially read or modifie the aliased
+ // registers.
+ //
+ list<Register> Aliases = [];
}
// RegisterGroup - This can be used to define instances of Register which