Our ABI says the blink is pushed first on stack followed by an unknown
number of register saves, and finally by fp. Hence we cannot use the
EH_RETURN_ADDRESS macro as the stack is not finalized at that moment.
The alternative is to use the eh_return pattern and to initialize all
the bits after register allocation when the stack layout is finalized.
gcc/
xxxx-xx-xx Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.c (arc_eh_return_address_location): Repurpose it
to fit the eh_return pattern.
* config/arc/arc.md (eh_return): Define.
(VUNSPEC_ARC_EH_RETURN): Likewise.
* config/arc/arc-protos.h (arc_eh_return_address_location): Match
new implementation.
* config/arc/arc.h (EH_RETURN_HANDLER_RTX): Remove it.
testsuite/
xxxx-xx-xx Claudiu Zissulescu <claziss@synopsys.com>
* gcc.target/arc/builtin_eh.c: New test.
From-SVN: r266066
