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[Bug debug/49167] dwarf marker for function return instruction
- From: "jistone at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 3 Jun 2011 18:56:37 +0000
- Subject: [Bug debug/49167] dwarf marker for function return instruction
- Auto-submitted: auto-generated
- References: <bug-49167-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49167
Josh Stone <jistone at redhat dot com> changed:
What |Removed |Added
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CC| |jistone at redhat dot com
--- Comment #1 from Josh Stone <jistone at redhat dot com> 2011-06-03 18:56:06 UTC ---
(In reply to comment #0)
> Ideally, tail call sites would also have this marker, and so would
> inlined functions. One can dream...
Besides nearby variables, we'd also like to know what is the imminent return
value. I imagine that's fine for a typical function, and perhaps for inlines
too if optimization didn't morph it away. But it's not clear to me how DWARF
could help us with the return value from a tail call. If the callee is
statically known, then perhaps some indirection to that site, but in general I
don't know...