Tweak test case

Using different offsets for the two global loads just makes it more
obvious that the second one could fail address translation even if the
first one succeeds.

Author: jayfoad

llvm/test/CodeGen/AMDGPU/wait-xcnt.mir

@@ -1088,8 +1088,8 @@ body: |
   ; GCN-NEXT:   successors: %bb.2(0x80000000)
   ; GCN-NEXT:   liveins: $vgpr0_vgpr1, $sgpr2
   ; GCN-NEXT: {{  $}}
-  ; GCN-NEXT:   $vgpr2 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
-  ; GCN-NEXT:   $vgpr3 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
+  ; GCN-NEXT:   $vgpr2 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 100, 0, implicit $exec
+  ; GCN-NEXT:   $vgpr3 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 200, 0, implicit $exec
   ; GCN-NEXT: {{  $}}
   ; GCN-NEXT: bb.2:
   ; GCN-NEXT:   liveins: $sgpr2, $vgpr2
@@ -1105,8 +1105,8 @@ body: |
     S_CBRANCH_SCC1 %bb.2, implicit $scc
   bb.1:
     liveins: $vgpr0_vgpr1, $sgpr2
-    $vgpr2 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
-    $vgpr3 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 0, 0, implicit $exec
+    $vgpr2 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 100, 0, implicit $exec
+    $vgpr3 = GLOBAL_LOAD_DWORD $vgpr0_vgpr1, 200, 0, implicit $exec
   bb.2:
     liveins: $sgpr2, $vgpr2
     $vgpr2 = V_MOV_B32_e32 $vgpr2, implicit $exec