https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68811
--- Comment #7 from Jan Hubicka <hubicka at ucw dot cz> ---
Hi,
does this patch fix the issue for you?
Honza
Index: lto/lto.c
===================================================================
--- lto/lto.c (revision 231472)
+++ lto/lto.c (working copy)
@@ -2517,7 +2517,7 @@ lto_wpa_write_files (void)
/* Ensure that TT isn't a replacable var of function decl. */
#define LTO_NO_PREVAIL(tt) \
- gcc_assert (!(tt) || !VAR_OR_FUNCTION_DECL_P (tt))
+ gcc_checking_assert (!(tt) || !VAR_OR_FUNCTION_DECL_P (tt))
/* Given a tree T replace all fields referring to variables or functions
with their prevailing variant. */
@@ -2529,7 +2529,10 @@ lto_fixup_prevailing_decls (tree t)
gcc_checking_assert (code != TREE_BINFO);
LTO_NO_PREVAIL (TREE_TYPE (t));
- if (CODE_CONTAINS_STRUCT (code, TS_COMMON))
+ if (CODE_CONTAINS_STRUCT (code, TS_COMMON)
+ /* lto_symtab_prevail_decl use TREE_CHAIN to link to the prevailing
decl.
+ in the case T is a prevailed declaration we would ICE here. */
+ && !VAR_OR_FUNCTION_DECL_P (t))
LTO_NO_PREVAIL (TREE_CHAIN (t));
if (DECL_P (t))
{
