Even when compiled with -O3, the call to f() is not inlined in the following
testcase:

typedef void (*fptr_t)();
void extfunc(const fptr_t *f);
static inline void inlinable() {}
void test()
{
    const fptr_t f = inlinable;
    extfunc(&f);
    f();
}


$ gcc-4.4 -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-svn/configure --program-suffix=-4.4
--enable-languages=c
Thread model: posix
gcc version 4.4.0 20090218 (experimental) (GCC)


-- 
           Summary: Call to constant function pointer not inlined
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dpirch at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39234

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