https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114714
--- Comment #4 from Li Pan <pan2.li at intel dot com> --- (In reply to Kito Cheng from comment #3) > Reduced case, not the final result, but it already run 8+ hours... > ``` > typedef int a; > typedef short b; > typedef unsigned c; > template < typename > using e = unsigned; > template < typename > void ab(); > #pragma riscv intrinsic "vector" > template < typename f, int, int ac > struct g { > using i = f; > template < typename m > using j = g< m, 0, ac >; > using k = g< i, 1, ac - 1 >; > using ad = g< i, 1, ac + 1 >; > }; > namespace ae { > struct af { > using h = g< short, 6, 0 < 3 >; > }; > struct ag { > using h = af::h; > }; > } template < typename, int > using ah = ae::ag::h; > template < class ai > using aj = typename ai::i; > template < class i, class ai > using j = typename ai::j< i >; > template < class ai > using ak = j< e< ai >, ai >; > template < class ai > using k = typename ai::k; > template < class ai > using ad = typename ai::ad; > template < a ap > vuint16m1_t ar(g< b, ap, 0 >, b); > template < a ap > vuint16m2_t ar(g< b, ap, 1 >, b); > template < a ap > vuint32m2_t ar(g< c, ap, 1 >, c); > template < a ap > vuint32m4_t ar(g< c, ap, 2 >, c); > template < class ai > using as = decltype(ar(ai(), aj< ai >())); > template < class ai > as< ai > at(ai); > namespace ae { > template < int ap > vuint32m4_t au(g< c, ap, 1 + 1 >, vuint32m2_t l) { > return __riscv_vlmul_ext_v_u32m2_u32m4(l); > } > } template < int ap > vuint32m2_t aw(g< c, ap, 1 >, vuint16m1_t l) { > return __riscv_vzext_vf2_u32m2(l, 0); > } > namespace ae { > vuint32m4_t ax(vuint32m4_t, vuint32m4_t, a); > } > template < class ay, class an > as< ay > az(ay ba, an bc) { > an bb; > return ae::ax(ae::au(ba, bc), ae::au(ba, bb), 2); > } > template < class bd > as< bd > be(bd, as< ad< bd > >); > namespace ae { > template < class bh, class bi > void bj(bh bk, bi bl) { > ad< decltype(bk) > bn; > az(bn, bl); > } > } template < int ap, int ac, class bp, class bq > > void br(g< c, ap, ac > bk, bp, bq bl) { > ae::bj(bk, bl); > } > template < class ai > using bs = decltype(at(ai())); > struct bt; > template < int ac = 1 > class bu { > public: > template < typename i > void operator()(i) { > ah< i, ac > d; > bt()(i(), d); > } > }; > struct bt { > template < typename bv, class bf > void operator()(bv, bf bw) { > using bx = bv; > ak< bf > by; > k< bf > bz; > using bq = bs< decltype(by) >; > using bp = bs< decltype(bw) >; > bp cb; > ab< bx >(); > for (;;) { > bp cc; > bq bl = aw(by, be(bz, cc)); > br(by, cb, bl); > } > } > }; > void d() { bu()(b()); } > > ``` Thanks Kito, really save my day!