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      1 // RUN: not llvm-mc -triple aarch64-none-linux-gnu < %s 2>&1 | FileCheck --check-prefix=CHECK --check-prefix=CHECK-ERROR %s
      2 
      3 bar:
      4         fred .req x5
      5         fred .req x6
      6 // CHECK-ERROR: warning: ignoring redefinition of register alias 'fred'
      7 // CHECK-ERROR: fred .req x6
      8 // CHECK-ERROR: ^
      9 
     10         ada  .req v2.8b
     11 // CHECK-ERROR: error: vector register without type specifier expected
     12 // CHECK-ERROR: ada  .req v2.8b
     13 // CHECK-ERROR:           ^
     14 
     15         bob  .req lisa
     16 // CHECK-ERROR: error: register name or alias expected
     17 // CHECK-ERROR: bob  .req lisa
     18 // CHECK-ERROR:           ^
     19 
     20         lisa .req x1, 23
     21 // CHECK-ERROR: error: unexpected input in .req directive
     22 // CHECK-ERROR: lisa .req x1, 23
     23 // CHECK-ERROR:             ^
     24 
     25         mov  bob, fred
     26 // CHECK-ERROR: error: invalid operand for instruction
     27 // CHECK-ERROR: mov  bob, fred
     28 // CHECK-ERROR:      ^
     29 
     30         .unreq 1
     31 // CHECK-ERROR: error: unexpected input in .unreq directive.
     32 // CHECK-ERROR: .unreq 1
     33 // CHECK-ERROR:        ^
     34 
     35         mov  x1, fred
     36 // CHECK: mov x1, x5
     37 // CHECK-NOT: mov x1, x6
     38