[llvm] [AMDGPU] Make `getAssumedAddrSpace` return AS1 for pointer kernel arguments (PR #137488)

[Matt Arsenault via llvm-commits]

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@@ -109,108 +109,102 @@ define amdgpu_kernel void @addrspacecast(ptr addrspace(5) %ptr.private, ptr addr
   ret void
 }
 
-define amdgpu_kernel void @llvm_amdgcn_is_shared(ptr %ptr) #0 {
+; FIXME: this function had amdgpu_kernel CC, but was removed as part of PR#137488.
+; Need to add them back once we move infer address space pass to middle end.
+define void @llvm_amdgcn_is_shared(ptr %ptr) #0 {
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arsenm wrote:

Should undo the fixme 

https://github.com/llvm/llvm-project/pull/137488