I rebased the v2 patchkit; here's an extra patch to fix an issue with it uncovered by a recently-added testcase (in r254990).
With the patch kit, but without this patch, g++'s c-c++-common/pr83059.c fails to emit the "invalid memory model argument 6" warning. Successfully bootstrapped®rtested on x86_64-pc-linux-gnu, as part of the kit. Is this OK for trunk, assuming the rest of the kit is approved? gcc/c-family/ChangeLog: * c-common.c (get_atomic_generic_size): Call fold_for_warn on the params before checking for INTEGER_CST. --- gcc/c-family/c-common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c index 3438b87..ab03b7d 100644 --- a/gcc/c-family/c-common.c +++ b/gcc/c-family/c-common.c @@ -6720,7 +6720,7 @@ get_atomic_generic_size (location_t loc, tree function, /* Check memory model parameters for validity. */ for (x = n_param - n_model ; x < n_param; x++) { - tree p = (*params)[x]; + tree p = fold_for_warn ((*params)[x]); if (TREE_CODE (p) == INTEGER_CST) { /* memmodel_base masks the low 16 bits, thus ignore any bits above -- 1.8.5.3