[Bug tree-optimization/51065] New: Forwarding functions can be optimized to aliases

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51065

             Bug #: 51065
           Summary: Forwarding functions can be optimized to aliases
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: r...@gcc.gnu.org


Given a couple of functions

void foo(int x, int y) { ... }
void bar(int x, int y) { foo(x, y}; }

we should take the opportunity, given target support and appropriate
binding of foo and bar, to optimize this to a same_body_alias rather
than merely a sibcall.