[AMDGPU] Relax restrictions on amdgcn.cs.chain intrinsic (#169785)

We have a new use-case for chain functions, so slightly relax the
restriction on which calling conventions may contain calls to chain
functions.

Author: rovka

llvm/lib/IR/Verifier.cpp

@@ -6761,11 +6761,15 @@ void Verifier::visitIntrinsicCall(Intrinsic::ID ID, CallBase &Call) {
     case CallingConv::AMDGPU_CS:
     case CallingConv::AMDGPU_CS_Chain:
     case CallingConv::AMDGPU_CS_ChainPreserve:
+    case CallingConv::AMDGPU_ES:
+    case CallingConv::AMDGPU_GS:
+    case CallingConv::AMDGPU_HS:
+    case CallingConv::AMDGPU_LS:
+    case CallingConv::AMDGPU_VS:
       break;
     default:
-      CheckFailed("Intrinsic can only be used from functions with the "
-                  "amdgpu_cs, amdgpu_cs_chain or amdgpu_cs_chain_preserve "
-                  "calling conventions",
+      CheckFailed("Intrinsic cannot be called from functions with this "
+                  "calling convention",
                   &Call);
       break;
     }