[Bug driver/68788] New: -Wa doesn't work with -flto

[jon at beniston dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68788

            Bug ID: 68788
           Summary: -Wa doesn't work with -flto
           Product: gcc
           Version: 5.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: driver
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jon at beniston dot com
  Target Milestone: ---

It seems it isn't possible to use the -Wa option to pass options to the
assembler when -flto is used.

E.g.

gcc -Wa,--my-option

works OK, but when using:

gcc -flto -Wa,--my-option -v

I can see that --my-option isn't passed to the assembler.

It seems this was mentioned on the mailing list a while ago:

https://gcc.gnu.org/ml/gcc-help/2013-04/msg00081.html

There's nothing in the docs to suggest this shouldn't work:

https://gcc.gnu.org/onlinedocs/gcc-5.3.0/gcc/Assembler-Options.html#Assembler-Options