On 7/7/19 3:41 AM, Richard Sandiford wrote:
> This patch prevents -Og from deleting stores to write-only variables,
> so that the values are still available when debugging. This seems
> more convenient than forcing users to use __attribute__((used))
> (probably conditionally, if it's not something they want in release
> builds).
>
> Tested on aarch64-linux-gnu and x86_64-linux-gnu. OK to install?
>
> Richard
>
>
> 2019-07-07 Richard Sandiford <richard.sandif...@arm.com>
>
> gcc/
> * tree-cfg.c (execute_fixup_cfg): Don't delete stores to write-only
> variables for -Og.
>
> gcc/testsuite/
> * c-c++-common/guality/Og-static-wo-1.c: New test.
> * g++.dg/guality/guality.exp: Separate the c-c++-common tests into
> "Og" and "general" tests. Run the latter at -O0 and -Og only.
> * gcc.dg/guality/guality.exp: Likewise.
OK
jeff
