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target/arm: Clean up 4-operand predicate expansion 

Move the check for !S into do_pppp_flags, which allows to merge in
do_vecop4_p.  Split out gen_gvec_fn_ppp without sve_access_check,
to mirror gen_gvec_fn_zzz.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200815013145.539409-7-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2020-08-28 10:02:48 +01:00 committed by Peter Maydell
parent d0b2df5a01
commit dd81a8d7cf
1 changed files with 43 additions and 68 deletions
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111
target/arm/translate-sve.c
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@ -179,31 +179,13 @@ static void do_dupi_z(DisasContext *s, int rd, uint64_t word)
}
/* Invoke a vector expander on three Pregs. */
static bool do_vector3_p(DisasContext *s, GVecGen3Fn *gvec_fn,
int esz, int rd, int rn, int rm)
static void gen_gvec_fn_ppp(DisasContext *s, GVecGen3Fn *gvec_fn,
int rd, int rn, int rm)
{
if (sve_access_check(s)) {
unsigned psz = pred_gvec_reg_size(s);
gvec_fn(esz, pred_full_reg_offset(s, rd),
pred_full_reg_offset(s, rn),
pred_full_reg_offset(s, rm), psz, psz);
}
return true;
}
/* Invoke a vector operation on four Pregs. */
static bool do_vecop4_p(DisasContext *s, const GVecGen4 *gvec_op,
int rd, int rn, int rm, int rg)
{
if (sve_access_check(s)) {
unsigned psz = pred_gvec_reg_size(s);
tcg_gen_gvec_4(pred_full_reg_offset(s, rd),
pred_full_reg_offset(s, rn),
pred_full_reg_offset(s, rm),
pred_full_reg_offset(s, rg),
psz, psz, gvec_op);
}
return true;
unsigned psz = pred_gvec_reg_size(s);
gvec_fn(MO_64, pred_full_reg_offset(s, rd),
pred_full_reg_offset(s, rn),
pred_full_reg_offset(s, rm), psz, psz);
}
/* Invoke a vector move on two Pregs. */
@ -1067,6 +1049,11 @@ static bool do_pppp_flags(DisasContext *s, arg_rprr_s *a,
int mofs = pred_full_reg_offset(s, a->rm);
int gofs = pred_full_reg_offset(s, a->pg);
if (!a->s) {
tcg_gen_gvec_4(dofs, nofs, mofs, gofs, psz, psz, gvec_op);
return true;
}
if (psz == 8) {
/* Do the operation and the flags generation in temps. */
TCGv_i64 pd = tcg_temp_new_i64();
@ -1126,19 +1113,24 @@ static bool trans_AND_pppp(DisasContext *s, arg_rprr_s *a)
.fno = gen_helper_sve_and_pppp,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
if (a->s) {
return do_pppp_flags(s, a, &op);
} else if (a->rn == a->rm) {
if (a->pg == a->rn) {
return do_mov_p(s, a->rd, a->rn);
} else {
return do_vector3_p(s, tcg_gen_gvec_and, 0, a->rd, a->rn, a->pg);
if (!a->s) {
if (!sve_access_check(s)) {
return true;
}
if (a->rn == a->rm) {
if (a->pg == a->rn) {
do_mov_p(s, a->rd, a->rn);
} else {
gen_gvec_fn_ppp(s, tcg_gen_gvec_and, a->rd, a->rn, a->pg);
}
return true;
} else if (a->pg == a->rn || a->pg == a->rm) {
gen_gvec_fn_ppp(s, tcg_gen_gvec_and, a->rd, a->rn, a->rm);
return true;
}
} else if (a->pg == a->rn || a->pg == a->rm) {
return do_vector3_p(s, tcg_gen_gvec_and, 0, a->rd, a->rn, a->rm);
} else {
return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg);
}
return do_pppp_flags(s, a, &op);
}
static void gen_bic_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg)
@ -1162,13 +1154,14 @@ static bool trans_BIC_pppp(DisasContext *s, arg_rprr_s *a)
.fno = gen_helper_sve_bic_pppp,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
if (a->s) {
return do_pppp_flags(s, a, &op);
} else if (a->pg == a->rn) {
return do_vector3_p(s, tcg_gen_gvec_andc, 0, a->rd, a->rn, a->rm);
} else {
return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg);
if (!a->s && a->pg == a->rn) {
if (sve_access_check(s)) {
gen_gvec_fn_ppp(s, tcg_gen_gvec_andc, a->rd, a->rn, a->rm);
}
return true;
}
return do_pppp_flags(s, a, &op);
}
static void gen_eor_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg)
@ -1192,11 +1185,7 @@ static bool trans_EOR_pppp(DisasContext *s, arg_rprr_s *a)
.fno = gen_helper_sve_eor_pppp,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
if (a->s) {
return do_pppp_flags(s, a, &op);
} else {
return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg);
}
return do_pppp_flags(s, a, &op);
}
static void gen_sel_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg)
@ -1222,11 +1211,11 @@ static bool trans_SEL_pppp(DisasContext *s, arg_rprr_s *a)
.fno = gen_helper_sve_sel_pppp,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
if (a->s) {
return false;
} else {
return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg);
}
return do_pppp_flags(s, a, &op);
}
static void gen_orr_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg)
@ -1250,13 +1239,11 @@ static bool trans_ORR_pppp(DisasContext *s, arg_rprr_s *a)
.fno = gen_helper_sve_orr_pppp,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
if (a->s) {
return do_pppp_flags(s, a, &op);
} else if (a->pg == a->rn && a->rn == a->rm) {
if (!a->s && a->pg == a->rn && a->rn == a->rm) {
return do_mov_p(s, a->rd, a->rn);
} else {
return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg);
}
return do_pppp_flags(s, a, &op);
}
static void gen_orn_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg)
@ -1280,11 +1267,7 @@ static bool trans_ORN_pppp(DisasContext *s, arg_rprr_s *a)
.fno = gen_helper_sve_orn_pppp,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
if (a->s) {
return do_pppp_flags(s, a, &op);
} else {
return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg);
}
return do_pppp_flags(s, a, &op);
}
static void gen_nor_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg)
@ -1308,11 +1291,7 @@ static bool trans_NOR_pppp(DisasContext *s, arg_rprr_s *a)
.fno = gen_helper_sve_nor_pppp,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
if (a->s) {
return do_pppp_flags(s, a, &op);
} else {
return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg);
}
return do_pppp_flags(s, a, &op);
}
static void gen_nand_pg_i64(TCGv_i64 pd, TCGv_i64 pn, TCGv_i64 pm, TCGv_i64 pg)
@ -1336,11 +1315,7 @@ static bool trans_NAND_pppp(DisasContext *s, arg_rprr_s *a)
.fno = gen_helper_sve_nand_pppp,
.prefer_i64 = TCG_TARGET_REG_BITS == 64,
};
if (a->s) {
return do_pppp_flags(s, a, &op);
} else {
return do_vecop4_p(s, &op, a->rd, a->rn, a->rm, a->pg);
}
return do_pppp_flags(s, a, &op);
}
/*