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      1 @ RUN: llvm-mc -triple=thumbv7m-apple-darwin -show-encoding < %s | FileCheck %s
      2 @ RUN: not llvm-mc -triple=thumbv6 -show-encoding 2>&1 < %s | FileCheck %s --check-prefix=CHECK-V6M
      3   .syntax unified
      4   .globl _func
      5 
      6 @ Check that the assembler can handle the documented syntax from the ARM ARM.
      7 @ These tests test instruction encodings specific to ARMv7m.
      8 
      9 @------------------------------------------------------------------------------
     10 @ MRS
     11 @------------------------------------------------------------------------------
     12 
     13         mrs  r0, basepri
     14         mrs  r0, basepri_max
     15         mrs  r0, faultmask
     16 
     17 @ CHECK: mrs	r0, basepri             @ encoding: [0xef,0xf3,0x11,0x80]
     18 @ CHECK: mrs	r0, basepri_max         @ encoding: [0xef,0xf3,0x12,0x80]
     19 @ CHECK: mrs	r0, faultmask           @ encoding: [0xef,0xf3,0x13,0x80]
     20 
     21 @------------------------------------------------------------------------------
     22 @ MSR
     23 @------------------------------------------------------------------------------
     24 
     25         msr  basepri, r0
     26         msr  basepri_max, r0
     27         msr  faultmask, r0
     28 
     29 @ CHECK: msr	basepri, r0             @ encoding: [0x80,0xf3,0x11,0x88]
     30 @ CHECK: msr	basepri_max, r0         @ encoding: [0x80,0xf3,0x12,0x88]
     31 @ CHECK: msr	faultmask, r0           @ encoding: [0x80,0xf3,0x13,0x88]
     32 
     33 @ CHECK-V6M: error: invalid operand for instruction
     34 @ CHECK-V6M-NEXT: mrs r0, basepri
     35 @ CHECK-V6M: error: invalid operand for instruction
     36 @ CHECK-V6M-NEXT: mrs r0, basepri_max
     37 @ CHECK-V6M: error: invalid operand for instruction
     38 @ CHECK-V6M-NEXT: mrs r0, faultmask
     39 @ CHECK-V6M: error: invalid operand for instruction
     40 @ CHECK-V6M-NEXT: msr basepri, r0
     41 @ CHECK-V6M: error: invalid operand for instruction
     42 @ CHECK-V6M-NEXT: msr basepri_max, r0
     43 @ CHECK-V6M: error: invalid operand for instruction
     44 @ CHECK-V6M-NEXT: msr faultmask, r0
     45 
     46