[Bug c++/42336] [4.5 Regression] ICE with pointer-to-member-function argument in template function with -fipa-sra

["jason at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #25 from jason at gcc dot gnu dot org  2010-02-03 00:01 -------
In fact the debug info is currently OK, at least for this testcase, because we
generate debug info for the signature of X::func at the end of the definition
of X, well before we start optimizing X::func.

But here's a C testcase where we lose debug info about a parameter that was
optimized away: there are no formal parameters in the DWARF output for f.

int i;
static int f(int) __attribute ((noinline));
static int f(int x) { return i; }

int main()
{
  return f(42);
}

so, this becomes a wrong-debug regression, and should probably have its
priority reduced.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42336