Properly pseudo-ize the ARM LDMIA_RET instruction. This has the nice side-
effect that we get proper instruction printing using the "pop" mnemonic for it.

llvm-svn: 127502
diff --git a/llvm/test/CodeGen/ARM/bx_fold.ll b/llvm/test/CodeGen/ARM/bx_fold.ll
index 09f1aae..5533038 100644
--- a/llvm/test/CodeGen/ARM/bx_fold.ll
+++ b/llvm/test/CodeGen/ARM/bx_fold.ll
@@ -24,7 +24,7 @@
 
 bb18:		; preds = %bb1
 ; CHECK-NOT: bx
-; CHECK: ldmia sp!
+; CHECK: pop
 	ret void
 }