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[Bug debug/29628] unused argc/argv missing their DW_AT_location
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 Oct 2006 16:11:47 -0000
- Subject: [Bug debug/29628] unused argc/argv missing their DW_AT_location
- References: <bug-29628-12292@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from jakub at gcc dot gnu dot org 2006-10-30 16:11 -------
This is caused by the stack realignment in i?86 main, the way it is currently
implemented is that address of first argument is loaded into %ecx and
then the stack is realigned. The pseudo register which shows in the
argument's RTL is that cfun->machine->force_align_arg_pointer (aka %ecx)
copied into a pseudo.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29628