[PATCH, middle-end]: Fix PR88129, Two blockage insns are emitted in the function epilogue

[Richard Biener]

On November 21, 2018 8:44:46 PM GMT+01:00, Uros Bizjak <ubizjak@gmail.com> wrote:
>Hello!
>
>Attached patch removes extra blockage insn generation. For the
>software archaeology, please see the PR [1], where it was determined,
>that the removed part is probably a dataflow branch to trunk merge
>oversight.
>
>2018-11-21  Uros Bizjak  <ubizjak@gmail.com>
>
>    PR middle-end/88129
>   * function.c (expand_function_end): Do not emit extra blockage insn.
>
>Patch was bootstrapped and regression tested on x86_64-linux-gnu
>{,-m32} for all default languages, obj-c++ and go.
>
>OK for mainline?

OK. 

Richard. 

>[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88129
>
>Uros.