https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92433
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to Segher Boessenkool from comment #5)
> if (y)
> {
> gcc_assert (n == 3);
> std::swap (arg_type[1], arg_type[2]);
> }
>
>
> ?
gcc_assert will work too unless the host compiler is older than 4.5 (or is
clang), but I think we don't really make -Werror on in that case, at least not
by default (only in second stage that is built with trunk gcc already).
So, I can bootstrap/regtest:
2019-11-11 Jakub Jelinek <ja...@redhat.com>
PR bootstrap/92433
* config/rs6000/rs6000-c.c (altivec_build_resolved_builtin): Add
assertion that n is 3 for ALTIVEC_BUILTIN_VEC_VCMPGE_P. Use
std::swap.
--- gcc/config/rs6000/rs6000-c.c.jj 2019-08-27 12:26:30.115019661 +0200
+++ gcc/config/rs6000/rs6000-c.c 2019-11-11 15:03:57.299102261 +0100
@@ -6080,10 +6080,10 @@ altivec_build_resolved_builtin (tree *ar
&& desc->overloaded_code != ALTIVEC_BUILTIN_VCMPGEFP_P
&& desc->overloaded_code != VSX_BUILTIN_XVCMPGEDP_P)
{
- tree t;
- t = args[2], args[2] = args[1], args[1] = t;
- t = arg_type[2], arg_type[2] = arg_type[1], arg_type[1] = t;
-
+ gcc_assert (n == 3);
+ std::swap (args[1], args[2]);
+ std::swap (arg_type[1], arg_type[2]);
+
args[0] = fold_build2 (BIT_XOR_EXPR, TREE_TYPE (args[0]), args[0],
build_int_cst (NULL_TREE, 2));
}
too if you prefer it that way. Richi said on IRC he prefers a rs6000-c.c
change in this case.
