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