[Bug lto/44724] LTO segfault with -fuse-linker-plugin

["rguenth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #6 from rguenth at gcc dot gnu dot org  2010-07-01 11:40 -------
On trunk with the original testcase we fail with

/abuild/rguenther/trunk-g/gcc> ./xgcc -B. -r -nostdlib -O -march=pentium4 -flto
-fuse-linker-plugin sid.ii wave.ii -m32 -B ../lto-plugin/.libs

lto1: out of memory allocating 8589934596 bytes after a total of 520192 bytes
lto-wrapper: ./xgcc returned 1 exit status
/usr/bin/gold: fatal error: lto-wrapper failed
collect2: ld returned 1 exit status

#4  0x00000000007bd6e1 in input_cgraph_1 (file_data=0x7ffff7ee2300, 
    ib=0x166a340) at /space/rguenther/src/svn/trunk/gcc/lto-cgraph.c:1257
1257          char *str = (char *)xmalloc (len + 1);
(gdb) l
1252
1253      /* Input toplevel asms.  */
1254      len = lto_input_uleb128 (ib);
1255      while (len)
1256        {
1257          char *str = (char *)xmalloc (len + 1);
1258          for (i = 0; i < len; ++i)
1259            str[i] = lto_input_1_unsigned (ib);
1260          cgraph_add_asm_node (build_string (len, str));
1261          free (str);
(gdb) p len
$1 = 8589934595

so somehow the output cgraph is corrupt.  Works fine without using the
linker-plugin on trunk, too.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44724