Reapply "AMDGPU: Add 32-bit constant address space"

This reverts r324494 and reapplies r324487.

llvm-svn: 324747

1 files changed, 6 insertions, 0 deletions

diff --git a/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h b/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
index 63875c55df0..6eed4fcd8ad 100644
--- a/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
+++ b/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h
@@ -186,6 +186,8 @@ private:
   // current hardware only allows a 16 bit value.
   unsigned GITPtrHigh;
 
+  unsigned HighBitsOf32BitAddress;
+
   MCPhysReg getNextUserSGPR() const {
     assert(NumSystemSGPRs == 0 && "System SGPRs must be added after user SGPRs");
     return AMDGPU::SGPR0 + NumUserSGPRs;
@@ -411,6 +413,10 @@ public:
     return GITPtrHigh;
   }
 
+  unsigned get32BitAddressHighBits() const {
+    return HighBitsOf32BitAddress;
+  }
+
   unsigned getNumUserSGPRs() const {
     return NumUserSGPRs;
   }