[PATCH, AArch64] Enable shrink wrap

[Marcus Shawcroft]

On 4 September 2014 15:14, Jiong Wang <jiong.wang@arm.com> wrote:
> this patch enabled stack shrink-wrap support on AArch64.
>
> no regression on aarch64-none-elf bare-metal.
> aarch64 bootstrap OK.
>
> ok to install?
>
> 2014-09-04 Renlin Li<renlin.li@arm.com>
>
> gcc/
>   * config/aarch64/aarch64.md (return): New expand.
>   (simple_return): Likewise.
>   * config/aarch64/aarch64.c (aarch64_use_return_insn_p): New function.
>   * config/aarch64/aarch64-protos.h (aarch64_use_return_insn_p): New
> declaration.
>
> gcc/testsuite
>   * gcc.dg/ira-shrinkwrap-prep-1.c: Enable aarch64.
>   * gcc.dg/ira-shrinkwrap-prep-2.c: Likewise.
>   * gcc.dg/pr10474.c: Likewise.

OK, committed as 215508
/Marcus