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tcg/i386: Expand scalar rotate with avx512 insns 

Expand 32-bit and 64-bit scalar rotate with VPRO[LR]V;
expand 16-bit scalar rotate with VPSHLDV.

Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-12-18 11:25:58 -08:00
parent a2a19b429b
commit 1d442e427a
1 changed files with 29 additions and 20 deletions
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49
tcg/i386/tcg-target.c.inc
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@ -3602,26 +3602,6 @@ static void expand_vec_rotli(TCGType type, unsigned vece,
tcg_temp_free_vec(t);
}
static void expand_vec_rotls(TCGType type, unsigned vece,
TCGv_vec v0, TCGv_vec v1, TCGv_i32 lsh)
{
TCGv_i32 rsh;
TCGv_vec t;
tcg_debug_assert(vece != MO_8);
t = tcg_temp_new_vec(type);
rsh = tcg_temp_new_i32();
tcg_gen_neg_i32(rsh, lsh);
tcg_gen_andi_i32(rsh, rsh, (8 << vece) - 1);
tcg_gen_shls_vec(vece, t, v1, lsh);
tcg_gen_shrs_vec(vece, v0, v1, rsh);
tcg_gen_or_vec(vece, v0, v0, t);
tcg_temp_free_vec(t);
tcg_temp_free_i32(rsh);
}
static void expand_vec_rotv(TCGType type, unsigned vece, TCGv_vec v0,
TCGv_vec v1, TCGv_vec sh, bool right)
{
@ -3648,6 +3628,35 @@ static void expand_vec_rotv(TCGType type, unsigned vece, TCGv_vec v0,
tcg_temp_free_vec(t);
}
static void expand_vec_rotls(TCGType type, unsigned vece,
TCGv_vec v0, TCGv_vec v1, TCGv_i32 lsh)
{
TCGv_vec t = tcg_temp_new_vec(type);
tcg_debug_assert(vece != MO_8);
if (vece >= MO_32 ? have_avx512vl : have_avx512vbmi2) {
tcg_gen_dup_i32_vec(vece, t, lsh);
if (vece >= MO_32) {
tcg_gen_rotlv_vec(vece, v0, v1, t);
} else {
expand_vec_rotv(type, vece, v0, v1, t, false);
}
} else {
TCGv_i32 rsh = tcg_temp_new_i32();
tcg_gen_neg_i32(rsh, lsh);
tcg_gen_andi_i32(rsh, rsh, (8 << vece) - 1);
tcg_gen_shls_vec(vece, t, v1, lsh);
tcg_gen_shrs_vec(vece, v0, v1, rsh);
tcg_gen_or_vec(vece, v0, v0, t);
tcg_temp_free_i32(rsh);
}
tcg_temp_free_vec(t);
}
static void expand_vec_mul(TCGType type, unsigned vece,
TCGv_vec v0, TCGv_vec v1, TCGv_vec v2)
{