[Bug rtl-optimization/17236] inefficient code for long long multiply on x86

[ebotcazou at gcc dot gnu dot org]

------- Comment #10 from ebotcazou at gcc dot gnu dot org  2007-12-18 08:10 -------
> It would be a relatively useful piece of infrastructure to have a flag in MEMs
> that marks on-stack MEMs, because other MEMs definitely must not be propagated
> blindly.

Depending on your needs, MEM_NOTRAP_P could be a good approximation.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17236