// REQUIRES: arm
// RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=arm-none-linux-gnueabi %s -o %t
// RUN: ld.lld %t -o /dev/null 2>&1 | FileCheck %s

// On Arm v4t there is no blx instruction so all interworking must go via
// a thunk. At present we don't support v4t so we give a warning for unsupported
// features.

// CHECK: warning: lld uses blx instruction, no object with architecture supporting feature detected

 .text
 .syntax unified
 .cpu   arm7tdmi
 .arm
 .globl _start
 .type   _start,%function
 .p2align       2
_start:
  bl thumbfunc
  bx lr

 .thumb
 .section .text.2, "ax", %progbits
 .globl thumbfunc
 .type thumbfunc,%function
thumbfunc:
 bx lr