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.mayd...@linaro.org>
---
target/arm/neon-dp.decode | 6 +++
target/arm/translate-neon.inc.c | 70 +++++++++++++++++++++++++++++++++
target/arm/translate.c | 42 +-------------------
3 files changed, 78 insertions(+), 40 deletions(-)
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index bc5a3e0295c..c276faf8cce 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -189,5 +189,11 @@ VCGE_fp_3s 1111 001 1 0 . 0 . .... .... 1110 ... 0
.... @3same_fp
VACGE_fp_3s 1111 001 1 0 . 0 . .... .... 1110 ... 1 .... @3same_fp
VCGT_fp_3s 1111 001 1 0 . 1 . .... .... 1110 ... 0 .... @3same_fp
VACGT_fp_3s 1111 001 1 0 . 1 . .... .... 1110 ... 1 .... @3same_fp
+VMAX_fp_3s 1111 001 0 0 . 0 . .... .... 1111 ... 0 .... @3same_fp
+VMIN_fp_3s 1111 001 0 0 . 1 . .... .... 1111 ... 0 .... @3same_fp
VPMAX_fp_3s 1111 001 1 0 . 0 . .... .... 1111 ... 0 .... @3same_fp_q0
VPMIN_fp_3s 1111 001 1 0 . 1 . .... .... 1111 ... 0 .... @3same_fp_q0
+VRECPS_fp_3s 1111 001 0 0 . 0 . .... .... 1111 ... 1 .... @3same_fp
+VRSQRTS_fp_3s 1111 001 0 0 . 1 . .... .... 1111 ... 1 .... @3same_fp
+VMAXNM_fp_3s 1111 001 1 0 . 0 . .... .... 1111 ... 1 .... @3same_fp
+VMINNM_fp_3s 1111 001 1 0 . 1 . .... .... 1111 ... 1 .... @3same_fp
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index eeea71e3bec..263d2b47132 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -1119,6 +1119,8 @@ DO_3S_FP(VCGE, gen_helper_neon_cge_f32, false)
DO_3S_FP(VCGT, gen_helper_neon_cgt_f32, false)
DO_3S_FP(VACGE, gen_helper_neon_acge_f32, false)
DO_3S_FP(VACGT, gen_helper_neon_acgt_f32, false)
+DO_3S_FP(VMAX, gen_helper_vfp_maxs, false)
+DO_3S_FP(VMIN, gen_helper_vfp_mins, false)
static void gen_VMLA_fp_3s(TCGv_i32 vd, TCGv_i32 vn, TCGv_i32 vm,
TCGv_ptr fpstatus)
@@ -1137,6 +1139,74 @@ static void gen_VMLS_fp_3s(TCGv_i32 vd, TCGv_i32 vn,
TCGv_i32 vm,
DO_3S_FP(VMLA, gen_VMLA_fp_3s, true)
DO_3S_FP(VMLS, gen_VMLS_fp_3s, true)
+static bool trans_VMAXNM_fp_3s(DisasContext *s, arg_3same *a)
+{
+ if (!arm_dc_feature(s, ARM_FEATURE_V8)) {
+ return false;
+ }
+
+ if (a->size != 0) {
+ /* TODO fp16 support */
+ return false;
+ }
+
+ return do_3same_fp(s, a, gen_helper_vfp_maxnums, false);
+}
+
+static bool trans_VMINNM_fp_3s(DisasContext *s, arg_3same *a)
+{
+ if (!arm_dc_feature(s, ARM_FEATURE_V8)) {
+ return false;
+ }
+
+ if (a->size != 0) {
+ /* TODO fp16 support */
+ return false;
+ }
+
+ return do_3same_fp(s, a, gen_helper_vfp_minnums, false);
+}
+
+WRAP_ENV_FN(gen_VRECPS_tramp, gen_helper_recps_f32)
+
+static void gen_VRECPS_fp_3s(unsigned vece, uint32_t rd_ofs,
+ uint32_t rn_ofs, uint32_t rm_ofs,
+ uint32_t oprsz, uint32_t maxsz)
+{
+ static const GVecGen3 ops = { .fni4 = gen_VRECPS_tramp };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops);
+}
+
+static bool trans_VRECPS_fp_3s(DisasContext *s, arg_3same *a)
+{
+ if (a->size != 0) {
+ /* TODO fp16 support */
+ return false;
+ }
+
+ return do_3same(s, a, gen_VRECPS_fp_3s);
+}
+
+WRAP_ENV_FN(gen_VRSQRTS_tramp, gen_helper_rsqrts_f32)
+
+static void gen_VRSQRTS_fp_3s(unsigned vece, uint32_t rd_ofs,
+ uint32_t rn_ofs, uint32_t rm_ofs,
+ uint32_t oprsz, uint32_t maxsz)
+{
+ static const GVecGen3 ops = { .fni4 = gen_VRSQRTS_tramp };
+ tcg_gen_gvec_3(rd_ofs, rn_ofs, rm_ofs, oprsz, maxsz, &ops);
+}
+
+static bool trans_VRSQRTS_fp_3s(DisasContext *s, arg_3same *a)
+{
+ if (a->size != 0) {
+ /* TODO fp16 support */
+ return false;
+ }
+
+ return do_3same(s, a, gen_VRSQRTS_fp_3s);
+}
+
static bool do_3same_fp_pair(DisasContext *s, arg_3same *a, VFPGen3OpSPFn *fn)
{
/* FP operations handled pairwise 32 bits at a time */
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 23e3705172b..c1d4fab8e80 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -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 */
--
2.20.1
