在 2022/10/13 下午2:44, Xi Ruoyao 写道:
On Thu, 2022-10-13 at 14:15 +0800, Levy wrote:
Hi RuoYao
It’s probably because loongarch64 doesn’t support
can_vec_perm_const_p(result_mode, op_mode, sel2, false)
I’m not sure whether if loongarch will support it or should I just
limit the test target for pr54346.c?
I'm not sure if we can add TARGET_VECTORIZE_VEC_PERM_CONST when we don't
actually support vector. (LoongArch has SIMD instructions but the
support in GCC won't be added in a very recent future.)
If what I understand is correct, I think this might be a better solution.
/* { dg-do compile } */
+/* { dg-require-effective-target vect_perm } */
/* { dg-options "-O -fdump-tree-dse1" } */
