[Bug lto/57879] New: GCC with -flto generates invalid code for genmddeps program

[Bug lto/57879] New: GCC with -flto generates invalid code for genmddeps program

[d.g.gorbachev at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57879

            Bug ID: 57879
           Summary: GCC with -flto generates invalid code for genmddeps
                    program
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: d.g.gorbachev at gmail dot com
              Host: i686-pc-linux-gnu
            Target: i686-pc-linux-gnu
             Build: i686-pc-linux-gnu

Created attachment 30495
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30495&action=edit
Self-contained (though not yet minimized) testcase

A function htab_create_typed_alloc.constprop.9 expects arguments in registers,
but called from main() with arguments on the stack.

[Bug lto/57879] GCC with -flto generates invalid code for genmddeps program

[d.g.gorbachev at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57879

--- Comment #1 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> ---
GCC 20130526 (r199345) - works:

08048a10 <main>:
main():
[...]
 8048a62:       mov    $0x8048f60,%ecx
 8048a67:       mov    $0x8048f80,%edx
 8048a6c:       mov    $0xa1,%eax
 8048a71:       call   8049790 <htab_create_typed_alloc.constprop.9>
[...]
08049790 <htab_create_typed_alloc.constprop.9>:
htab_create_typed_alloc.constprop.9():
 8049790:       push   %ebp
 8049791:       mov    %edx,%ebp
[...]
 80497e8:       mov    %ebp,(%edi)
[...]

GCC 20130609 (r199874) - fails:

08048a10 <main>:
main():
[...]
 8048a62:       movl   $0x8048f80,0x8(%esp)
 8048a6a:       movl   $0x8048fa0,0x4(%esp)
 8048a72:       movl   $0xa1,(%esp)
 8048a79:       call   80497b0 <htab_create_typed_alloc.constprop.9>
[...]
080497b0 <htab_create_typed_alloc.constprop.9>:
htab_create_typed_alloc.constprop.9():
 80497b0:       push   %ebp
 80497b1:       mov    %edx,%ebp
[...]
 8049808:       mov    %ebp,(%edi)
[...]

GCC 4.9.0 20130707 (experimental) - still fails.

[Bug lto/57879] GCC with -flto generates invalid code for genmddeps program

[izamyatin at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57879

Igor Zamyatin <izamyatin at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |izamyatin at gmail dot com

--- Comment #2 from Igor Zamyatin <izamyatin at gmail dot com> ---
Dup of PR57602, I suppose

[Bug lto/57879] GCC with -flto generates invalid code for genmddeps program

[d.g.gorbachev at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57879

Dmitry Gorbachev <d.g.gorbachev at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #3 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> ---
.

*** This bug has been marked as a duplicate of bug 57602 ***