The m68k-linux failure for the various omp atomic tests
is due to the fact that BIGGEST_ALIGNMENT is 16 bits on
that platform. I think it's pretty reasonable to assume
that if something is aligned to BIGGEST_ALIGNEMENT, then
it can be considered "aligned".
Tested on x86_64-linux and m68k-linux cross.
r~
* omp-low.c (expand_omp_atomic): Assume anything aligned to
BIGGEST_ALIGNMENT is aligned.
diff --git a/gcc/omp-low.c b/gcc/omp-low.c
index a4bfb84..4e1c2ba 100644
--- a/gcc/omp-low.c
+++ b/gcc/omp-low.c
@@ -5501,7 +5501,9 @@ expand_omp_atomic (struct omp_region *region)
unsigned int align = TYPE_ALIGN_UNIT (type);
/* __sync builtins require strict data alignment. */
- if (exact_log2 (align) >= index)
+ /* ??? Assume BIGGEST_ALIGNMENT *is* aligned. */
+ if (exact_log2 (align) >= index
+ || align * BITS_PER_UNIT >= BIGGEST_ALIGNMENT)
{
/* Atomic load. */
if (loaded_val == stored_val
