From: Anton Blanchard <[email protected]> vcompress packs vl or less fields into vd, so the tail starts after the last packed field. This could be more clearly expressed in the ISA, but for now this thread helps to explain it:
https://github.com/riscv/riscv-v-spec/issues/796 Signed-off-by: Anton Blanchard <[email protected]> Reviewed-by: Daniel Henrique Barboza <[email protected]> Reviewed-by: Alistair Francis <[email protected]> Message-ID: <[email protected]> Signed-off-by: Alistair Francis <[email protected]> (cherry picked from commit c128d39edeff337220fc536a3e935bcba01ecb49) Signed-off-by: Michael Tokarev <[email protected]> diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index fa139040f8..1de0bdc87c 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -5126,7 +5126,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ } \ env->vstart = 0; \ /* set tail elements to 1s */ \ - vext_set_elems_1s(vd, vta, vl * esz, total_elems * esz); \ + vext_set_elems_1s(vd, vta, num * esz, total_elems * esz); \ } /* Compress into vd elements of vs2 where vs1 is enabled */ -- 2.39.5
