[PATCH] R600: Add definition for flat addres space ID.

[Matt Arsenault]

  Don't change the CONSTANT_BUFFER_* values since apparently a bunch of tests use those directly by moving ADDRESS_NONE to the end

http://llvm-reviews.chandlerc.com/D3239

CHANGE SINCE LAST DIFF
  http://llvm-reviews.chandlerc.com/D3239?vs=8252&id=8260#toc

Files:
  lib/Target/R600/AMDGPU.h

Index: lib/Target/R600/AMDGPU.h
===================================================================
--- lib/Target/R600/AMDGPU.h
+++ lib/Target/R600/AMDGPU.h
@@ -76,8 +76,8 @@
   GLOBAL_ADDRESS   = 1, ///< Address space for global memory (RAT0, VTX0).
   CONSTANT_ADDRESS = 2, ///< Address space for constant memory
   LOCAL_ADDRESS    = 3, ///< Address space for local memory.
-  REGION_ADDRESS   = 4, ///< Address space for region memory.
-  ADDRESS_NONE     = 5, ///< Address space for unknown memory.
+  FLAT_ADDRESS     = 4, ///< Address space for flat memory.
+  REGION_ADDRESS   = 5, ///< Address space for region memory.
   PARAM_D_ADDRESS  = 6, ///< Address space for direct addressible parameter memory (CONST0)
   PARAM_I_ADDRESS  = 7, ///< Address space for indirect addressible parameter memory (VTX1)
 
@@ -102,7 +102,8 @@
   CONSTANT_BUFFER_13 = 21,
   CONSTANT_BUFFER_14 = 22,
   CONSTANT_BUFFER_15 = 23,
-  LAST_ADDRESS     = 24
+  ADDRESS_NONE = 24, ///< Address space for unknown memory.
+  LAST_ADDRESS = ADDRESS_NONE
 };
 
 } // namespace AMDGPUAS
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