[Bug lto/51300] New: Internal error when using -flto with -O0 in the linker

[Bug lto/51300] New: Internal error when using -flto with -O0 in the linker

[mikulas at artax dot karlin.mff.cuni.cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51300

             Bug #: 51300
           Summary: Internal error when using -flto with -O0 in the linker
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: mikulas@artax.karlin.mff.cuni.cz
              Host: hppa-linux-gnu
            Target: hppa-linux-gnu
             Build: hppa-linux-gnu


I get an internal error in gcc.

Steps to reproduce:
Use gcc 4.6.2 on Linux Debian 5 on PA-RISC
Get Links browser 2.4 from http://links.twibright.com/download/
Compile it with -flto so that individual modules are compiled with an
optimization, but the whole program is compiled without optimization:
CFLAGS="-O -flto" LDFLAGS="-O0" ./configure && make

The result is a gcc internal error:

gcc  -O -flto -O0 -o links  af_unix.o auth.o beos.o bfu.o block.o bookmarks.o
cache.o charsets.o connect.o cookies.o default.o dip.o directfb.o dither.o
dns.o drivers.o error.o file.o finger.o font_include.o framebuffer.o ftp.o
gif.o html.o html_gr.o html_r.o html_tbl.o http.o https.o img.o imgcache.o
jpeg.o jsint.o kbd.o language.o links_icon.o listedit.o lru.o mailto.o main.o
memory.o menu.o objreq.o os_dep.o pmshell.o png.o sched.o select.o session.o
smb.o svgalib.o terminal.o tiff.o types.o url.o view.o view_gr.o x.o xbm.o 
-lbz2 -lz -lssl -lcrypto

session.o: In function `continue_download':
(.text+0x4f30): warning: the use of `tempnam' is dangerous, better use
`mkstemp'In file included from :76:0:
session.c: In function 'get_file_by_term':
session.c:1937:12: internal compiler error: in insert_value_copy_on_edge, at
tree-outof-ssa.c:242
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper: gcc returned 1 exit status
collect2: lto-wrapper returned 1 exit status

[Bug lto/51300] Internal error when using -flto with -O0 in the linker

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51300

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

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

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-12-14 23:43:13 UTC ---
dup of bug 41159

*** This bug has been marked as a duplicate of bug 41159 ***