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target/arm: Convert Neon fp VMAX/VMIN/VMAXNM/VMINNM/VRECPS/VRSQRTS to decodetree

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Convert the Neon fp VMAX/VMIN/VMAXNM/VMINNM/VRECPS/VRSQRTS 3-reg-same
insns to decodetree. (These are all the remaining non-accumulation
instructions in this group.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200512163904.10918-17-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2020-05-12 17:39:03 +01:00
parent 26c6f695cf
commit d5fdf9e9e1
3 changed files with 78 additions and 40 deletions
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42
target/arm/translate.c
View file

@ -5436,6 +5436,8 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
case NEON_3R_FLOAT_MULTIPLY:
case NEON_3R_FLOAT_CMP:
case NEON_3R_FLOAT_ACMP:
case NEON_3R_FLOAT_MINMAX:
case NEON_3R_FLOAT_MISC:
/* Already handled by decodetree */
return 1;
}
@ -5445,17 +5447,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
return 1;
}
switch (op) {
case NEON_3R_FLOAT_MINMAX:
if (u) {
return 1; /* VPMIN/VPMAX handled by decodetree */
}
break;
case NEON_3R_FLOAT_MISC:
/* VMAXNM/VMINNM in ARMv8 */
if (u && !arm_dc_feature(s, ARM_FEATURE_V8)) {
return 1;
}
break;
case NEON_3R_VFM_VQRDMLSH:
if (!dc_isar_feature(aa32_simdfmac, s)) {
return 1;
@ -5471,35 +5462,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
tmp = neon_load_reg(rn, pass);
tmp2 = neon_load_reg(rm, pass);
switch (op) {
case NEON_3R_FLOAT_MINMAX:
{
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
if (size == 0) {
gen_helper_vfp_maxs(tmp, tmp, tmp2, fpstatus);
} else {
gen_helper_vfp_mins(tmp, tmp, tmp2, fpstatus);
}
tcg_temp_free_ptr(fpstatus);
break;
}
case NEON_3R_FLOAT_MISC:
if (u) {
/* VMAXNM/VMINNM */
TCGv_ptr fpstatus = get_fpstatus_ptr(1);
if (size == 0) {
gen_helper_vfp_maxnums(tmp, tmp, tmp2, fpstatus);
} else {
gen_helper_vfp_minnums(tmp, tmp, tmp2, fpstatus);
}
tcg_temp_free_ptr(fpstatus);
} else {
if (size == 0) {
gen_helper_recps_f32(tmp, cpu_env, tmp, tmp2);
} else {
gen_helper_rsqrts_f32(tmp, cpu_env, tmp, tmp2);
}
}
break;
case NEON_3R_VFM_VQRDMLSH:
{
/* VFMA, VFMS: fused multiply-add */