[Bug lto/41932] LTO ICE when compiling ocaml trunk (incompatible type)

[simon_baldwin at yahoo dot com]

------- Comment #2 from simon_baldwin at yahoo dot com  2009-11-04 12:17 -------
I have a minimal failing case for this, I think.  I'm using trunk 153803, for
what it's worth.

$ cat demo.c
  typedef long intnat;
  typedef intnat value;
  void caml_darken (value v, value *p) { }

$ .../gcc -flto -O2 -c -O -fPIC demo.c
$ .../gcc -flto -O2 -shared -o /dev/null demo.o
  lto1: internal compiler error: Segmentation fault

Though it looks to be related to the ICE, the warning

  gc_ctrl.c:44:16: warning: type of 'caml_major_heap_increment' does not match
original declaration
  major_gc.c:33:8: note: previously declared here

seems genuine and unrelated to me.  gc_ctrl.c declares this as extern asize_t
(size_t, long unsigned), major_gc.c defines it as intnat (long).


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41932