[llvm-branch-commits] [llvm] AMDGPU/GlobalISel: add RegBankLegalize rules for select (PR #132384)

[Matt Arsenault via llvm-branch-commits]

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@@ -485,7 +504,8 @@ LLT 
RegBankLegalizeHelper::getBTyFromID(RegBankLLTMappingApplyID ID, LLT Ty) {
   case UniInVgprB64:
     if (Ty == LLT::scalar(64) || Ty == LLT::fixed_vector(2, 32) ||
         Ty == LLT::fixed_vector(4, 16) || Ty == LLT::pointer(0, 64) ||
-        Ty == LLT::pointer(1, 64) || Ty == LLT::pointer(4, 64))
+        Ty == LLT::pointer(1, 64) || Ty == LLT::pointer(4, 64) ||
+        (Ty.isPointer() && Ty.getAddressSpace() > 
AMDGPUAS::MAX_AMDGPU_ADDRESS))
----------------
arsenm wrote:

We should try to recognize any unhandled address spaces as global aliases, 
there's a p999 test 

https://github.com/llvm/llvm-project/pull/132384
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