[AMDGPU] Cleanup xor.ll

Author: justinfargnoli

llvm/test/CodeGen/AMDGPU/xor.ll

@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
-; RUN: llc -amdgpu-scalarize-global-loads=false -mtriple=amdgcn -mcpu=verde < %s | FileCheck -enable-var-scope -check-prefixes=SI,GCN %s
-; RUN: llc -amdgpu-scalarize-global-loads=false -mtriple=amdgcn -mcpu=tonga < %s | FileCheck -enable-var-scope -check-prefixes=VI,GCN %s
+; RUN: llc -amdgpu-scalarize-global-loads=false -mtriple=amdgcn -mcpu=verde < %s | FileCheck -enable-var-scope -check-prefix=SI %s
+; RUN: llc -amdgpu-scalarize-global-loads=false -mtriple=amdgcn -mcpu=tonga < %s | FileCheck -enable-var-scope -check-prefix=VI %s
 
 define amdgpu_kernel void @xor_v2i32(ptr addrspace(1) %out, ptr addrspace(1) %in0, ptr addrspace(1) %in1) {
 ; SI-LABEL: xor_v2i32:
@@ -816,6 +816,4 @@ define amdgpu_kernel void @vector_xor_literal_i64(ptr addrspace(1) %out, ptr add
   %or = xor i64 %loada, 22470723082367
   store i64 %or, ptr addrspace(1) %out
   ret void
-}
-;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
-; GCN: {{.*}}
+}