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      1 ; RUN: llc -mtriple=aarch64-eabi %s -o - | FileCheck %s
      2 
      3 ; CHECK-LABEL: rbit32
      4 ; CHECK: rbit w0, w0
      5 define i32 @rbit32(i32 %t) {
      6 entry:
      7   %rbit.i = call i32 @llvm.aarch64.rbit.i32(i32 %t)
      8   ret i32 %rbit.i
      9 }
     10 
     11 ; CHECK-LABEL: rbit64
     12 ; CHECK: rbit x0, x0
     13 define i64 @rbit64(i64 %t) {
     14 entry:
     15   %rbit.i = call i64 @llvm.aarch64.rbit.i64(i64 %t)
     16   ret i64 %rbit.i
     17 }
     18 
     19 declare i64 @llvm.aarch64.rbit.i64(i64)
     20 declare i32 @llvm.aarch64.rbit.i32(i32)
     21