[Bug target/21580] Less-than-ideal code generation for incrementing volatile variables

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2007-08-18 00:21 -------
>omewhat also related, "(void)x;" still accesses memory when x is volatile --
> I suppose this might be desirable, however.

It is because you say to load from x.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21580