radeon/llvm: More comments and cleanups

1 files changed, 10 insertions, 3 deletions

diff --git a/src/gallium/drivers/radeon/AMDGPUISelLowering.h b/src/gallium/drivers/radeon/AMDGPUISelLowering.h
index 1b3f71006e2..16adf1b32bb 100644
--- a/src/gallium/drivers/radeon/AMDGPUISelLowering.h
+++ b/src/gallium/drivers/radeon/AMDGPUISelLowering.h
@@ -22,8 +22,15 @@ namespace llvm {
 class AMDGPUTargetLowering : public AMDILTargetLowering
 {
 protected:
+
+  /// addLiveIn - This functions adds reg to the live in list of the entry block
+  /// and emits a copy from reg to MI.getOperand(0).
+  ///
+  //  Some registers are loaded with values before the program
+  /// begins to execute.  The loading of these values is modeled with pseudo
+  /// instructions which are lowered using this function. 
   void addLiveIn(MachineInstr * MI, MachineFunction * MF,
-                 MachineRegisterInfo & MRI, const struct TargetInstrInfo * TII,
+                 MachineRegisterInfo & MRI, const TargetInstrInfo * TII,
 		 unsigned reg) const;
 
 public:
@@ -31,6 +38,6 @@ public:
 
 };
 
-} /* End namespace llvm */
+} // End namespace llvm
 
-#endif /* AMDGPUISELLOWERING_H */
+#endif // AMDGPUISELLOWERING_H