arm.c (thumb1_final_prescan_insn): Assert lr save for real far jump.

arm.c (thumb1_final_prescan_insn): Assert lr save for real far jump.

2013-04-15  Joey Ye  <joey.ye@arm.com>

    * config/arm/arm.c (thumb1_final_prescan_insn): Assert lr save
    for real far jump.
    (thumb_far_jump_used_p): Count instruction size and set
    far_jump_used.

testsuite:
    * gcc.target/arm/thumb1-far-jump-1.c: New test.
    * gcc.target/arm/thumb1-far-jump-2.c: New test.

From-SVN: r197956