https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78306
--- Comment #2 from Markus Fenske <iblue at gmx dot net> ---
Thanks for the suggested workaround. Moving all the always_inline functions
into a wrapper was no option, because it's not just memset but my code relies
on avx intrinsics and would be dead slow if I would need a function all for
every instruction.
So I just removed the cilk sections in ipa-inline-analysis.c and ipa-inline.c
and compiled my code with gcc-trunk. It compiles and produces the same results
as with icc and clang.
I'm not an expert in gcc code, but I would propose this patch to solve the
issue:
Index: gcc/ipa-inline-analysis.c
===================================================================
--- gcc/ipa-inline-analysis.c (revision 242386)
+++ gcc/ipa-inline-analysis.c (working copy)
@@ -1507,9 +1507,6 @@
e->inline_failed = CIF_BODY_NOT_AVAILABLE;
else if (callee->local.redefined_extern_inline)
e->inline_failed = CIF_REDEFINED_EXTERN_INLINE;
- else if (cfun && fn_contains_cilk_spawn_p (cfun))
- /* We can't inline if the function is spawing a function. */
- e->inline_failed = CIF_CILK_SPAWN;
else
e->inline_failed = CIF_FUNCTION_NOT_CONSIDERED;
gcc_checking_assert (!e->call_stmt_cannot_inline_p
Index: gcc/ipa-inline.c
===================================================================
--- gcc/ipa-inline.c (revision 242386)
+++ gcc/ipa-inline.c (working copy)
@@ -368,11 +368,6 @@
e->inline_failed = CIF_FUNCTION_NOT_INLINABLE;
inlinable = false;
}
- else if (inline_summaries->get (caller)->contains_cilk_spawn)
- {
- e->inline_failed = CIF_CILK_SPAWN;
- inlinable = false;
- }
/* Don't inline a function with mismatched sanitization attributes. */
else if (!sanitize_attrs_match_for_inline_p (caller->decl, callee->decl))
{
