This allows a target to support both windowed and non-windowed ABI.
2015-03-03 Max Filippov <jcmvbkbc@gmail.com>
gcc/
* builtins.c (expand_builtin_return_addr): Add
RETURN_ADDR_IN_PREVIOUS_FRAME to 'if' condition, remove
surrounding #ifdef.
* config/sparc/sparc.h (RETURN_ADDR_IN_PREVIOUS_FRAME): Change
definition to 1.
* config/xtensa/xtensa.h (RETURN_ADDR_IN_PREVIOUS_FRAME):
Likewise.
* defaults.h (RETURN_ADDR_IN_PREVIOUS_FRAME): Define to 0 if
undefined.
* doc/tm.texi.in (RETURN_ADDR_IN_PREVIOUS_FRAME): Update
paragraph.
From-SVN: r221150
