re PR debug/57351 (ICE: internal compiler error: in dbx_reg_number, at dwarf2out.c:10507 on arm-none-eabi)

2013-05-23  Christian Bruel  <christian.bruel@st.com>

        PR debug/57351
        * config/arm/arm.c (arm_dwarf_register_span): Do not use dbx number.

From-SVN: r199261