gcc/
* config/arm/arm.c (arm_function_ok_for_sibcall): Only forbid
sibling calls for Thumb-1.
* config/arm/arm.h (USE_RETURN_INSN): Enable for Thumb-2.
* config/arm/arm.md (*call_symbol, *call_value_symbol): Use for
Thumb-2.
(*call_insn, *call_value_insn): Don't use for Thumb-2.
(sibcall, sibcall_value, *sibcall_insn, *sibcall_value_insn): Use
for Thumb-2.
(return): New expander.
(*arm_return): New name for ARM return insn.
* config/arm/thumb2.md (*thumb2_return): New insn pattern.
Co-Authored-By: Mark Mitchell <mark@codesourcery.com>
From-SVN: r159672
