https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92476
Jan Hubicka <hubicka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|hubicka at gcc dot gnu.org |mjambor at suse dot cz
--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Martin,
this problem is caused by ipa-cp deciding to clone function which has thunk
associated to it. create_virtual_clone then copies thunk (which is your code)
and and expands all thunks. This turn thunk into real function and because
ipa-cp does not produce summaries for thunks we now ICE because summary is
missing. I tried the following to compute the missing summary:
Index: cgraphclones.c
===================================================================
--- cgraphclones.c (revision 278390)
+++ cgraphclones.c (working copy)
@@ -80,6 +80,11 @@ along with GCC; see the file COPYING3.
#include "tree-inline.h"
#include "dumpfile.h"
#include "gimple-pretty-print.h"
+#include "alloc-pool.h"
+#include "symbol-summary.h"
+#include "tree-vrp.h"
+#include "ipa-prop.h"
+#include "ipa-fnsummary.h"
/* Create clone of edge in the node N represented by CALL_EXPR
the callgraph. */
@@ -268,6 +273,8 @@ cgraph_node::expand_all_artificial_thunk
thunk->thunk.thunk_p = false;
thunk->analyze ();
}
+ ipa_analyze_node (thunk);
+ inline_analyze_function (thunk);
thunk->expand_all_artificial_thunks ();
}
else
but that moves the ICE later:
hubicka@lomikamen-jh:/aux/hubicka/trunk5/build-lto/gcc$ ./xgcc -B ./ -O2 a.C
-m32
during IPA pass: cp
a.C:40:1: internal compiler error: in ipa_get_parm_lattices, at ipa-cp.c:388
40 | }
| ^
0x234db7d ipa_get_parm_lattices
../../gcc/ipa-cp.c:388
0x23595b1 ipcp_store_bits_results
../../gcc/ipa-cp.c:5417
0x2359c7a ipcp_driver
../../gcc/ipa-cp.c:5558
0x2359e58 execute
../../gcc/ipa-cp.c:5647
Please submit a full bug report,
which is caued by fact that we have no lattices for that function (since it was
not considered by the propagator).
I also wonder why these seems to show with 32bit only.
Honza
