From: LIU Zhiwei <zhiwei_liu@c-sky.com>
To: richard.henderson@linaro.org, alistair23@gmail.com,
chihmin.chao@sifive.com, palmer@dabbelt.com
Cc: guoren@linux.alibaba.com, qemu-riscv@nongnu.org,
qemu-devel@nongnu.org, wxy194768@alibaba-inc.com,
wenmeng_zhang@c-sky.com, LIU Zhiwei <zhiwei_liu@c-sky.com>
Subject: [PATCH v3 39/60] target/riscv: vector floating-point classify instructions
Date: Mon, 9 Mar 2020 16:20:21 +0800 [thread overview]
Message-ID: <20200309082042.12967-40-zhiwei_liu@c-sky.com> (raw)
In-Reply-To: <20200309082042.12967-1-zhiwei_liu@c-sky.com>
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
---
target/riscv/helper.h | 4 ++
target/riscv/insn32.decode | 1 +
target/riscv/insn_trans/trans_rvv.inc.c | 3 ++
target/riscv/vector_helper.c | 62 +++++++++++++++++++++++++
4 files changed, 70 insertions(+)
diff --git a/target/riscv/helper.h b/target/riscv/helper.h
index 323bed038e..86f1498c06 100644
--- a/target/riscv/helper.h
+++ b/target/riscv/helper.h
@@ -978,3 +978,7 @@ DEF_HELPER_6(vmford_vv_d, void, ptr, ptr, ptr, ptr, env, i32)
DEF_HELPER_6(vmford_vf_h, void, ptr, ptr, i64, ptr, env, i32)
DEF_HELPER_6(vmford_vf_w, void, ptr, ptr, i64, ptr, env, i32)
DEF_HELPER_6(vmford_vf_d, void, ptr, ptr, i64, ptr, env, i32)
+
+DEF_HELPER_5(vfclass_v_h, void, ptr, ptr, ptr, env, i32)
+DEF_HELPER_5(vfclass_v_w, void, ptr, ptr, ptr, env, i32)
+DEF_HELPER_5(vfclass_v_d, void, ptr, ptr, ptr, env, i32)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 2d61256981..18b78ed82d 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -507,6 +507,7 @@ vmfgt_vf 011101 . ..... ..... 101 ..... 1010111 @r_vm
vmfge_vf 011111 . ..... ..... 101 ..... 1010111 @r_vm
vmford_vv 011010 . ..... ..... 001 ..... 1010111 @r_vm
vmford_vf 011010 . ..... ..... 101 ..... 1010111 @r_vm
+vfclass_v 100011 . ..... 10000 001 ..... 1010111 @r2_vm
vsetvli 0 ........... ..... 111 ..... 1010111 @r2_zimm
vsetvl 1000000 ..... ..... 111 ..... 1010111 @r
diff --git a/target/riscv/insn_trans/trans_rvv.inc.c b/target/riscv/insn_trans/trans_rvv.inc.c
index 9d9653e605..3971c3ebdb 100644
--- a/target/riscv/insn_trans/trans_rvv.inc.c
+++ b/target/riscv/insn_trans/trans_rvv.inc.c
@@ -1918,3 +1918,6 @@ GEN_OPFVF_TRANS(vmfle_vf, opfvf_cmp_check)
GEN_OPFVF_TRANS(vmfgt_vf, opfvf_cmp_check)
GEN_OPFVF_TRANS(vmfge_vf, opfvf_cmp_check)
GEN_OPFVF_TRANS(vmford_vf, opfvf_cmp_check)
+
+/* Vector Floating-Point Classify Instruction */
+GEN_OPFV_TRANS(vfclass_v, opfv_check)
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index dd44cc57a3..e9f278643f 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -3852,3 +3852,65 @@ GEN_VEXT_CMP_VV_ENV(vmford_vv_d, uint64_t, H8, !float64_unordered_quiet)
GEN_VEXT_CMP_VF(vmford_vf_h, uint16_t, H2, !float16_unordered_quiet)
GEN_VEXT_CMP_VF(vmford_vf_w, uint32_t, H4, !float32_unordered_quiet)
GEN_VEXT_CMP_VF(vmford_vf_d, uint64_t, H8, !float64_unordered_quiet)
+
+/* Vector Floating-Point Classify Instruction */
+static uint16_t fclass_f16(uint16_t frs1, float_status *s)
+{
+ float16 f = frs1;
+ bool sign = float16_is_neg(f);
+
+ if (float16_is_infinity(f)) {
+ return sign ? 1 << 0 : 1 << 7;
+ } else if (float16_is_zero(f)) {
+ return sign ? 1 << 3 : 1 << 4;
+ } else if (float16_is_zero_or_denormal(f)) {
+ return sign ? 1 << 2 : 1 << 5;
+ } else if (float16_is_any_nan(f)) {
+ float_status s = { }; /* for snan_bit_is_one */
+ return float16_is_quiet_nan(f, &s) ? 1 << 9 : 1 << 8;
+ } else {
+ return sign ? 1 << 1 : 1 << 6;
+ }
+}
+static uint32_t fclass_s(uint32_t frs1, float_status *s)
+{
+ float32 f = frs1;
+ bool sign = float32_is_neg(f);
+
+ if (float32_is_infinity(f)) {
+ return sign ? 1 << 0 : 1 << 7;
+ } else if (float32_is_zero(f)) {
+ return sign ? 1 << 3 : 1 << 4;
+ } else if (float32_is_zero_or_denormal(f)) {
+ return sign ? 1 << 2 : 1 << 5;
+ } else if (float32_is_any_nan(f)) {
+ float_status s = { }; /* for snan_bit_is_one */
+ return float32_is_quiet_nan(f, &s) ? 1 << 9 : 1 << 8;
+ } else {
+ return sign ? 1 << 1 : 1 << 6;
+ }
+}
+static uint64_t fclass_d(uint64_t frs1, float_status *s)
+{
+ float64 f = frs1;
+ bool sign = float64_is_neg(f);
+
+ if (float64_is_infinity(f)) {
+ return sign ? 1 << 0 : 1 << 7;
+ } else if (float64_is_zero(f)) {
+ return sign ? 1 << 3 : 1 << 4;
+ } else if (float64_is_zero_or_denormal(f)) {
+ return sign ? 1 << 2 : 1 << 5;
+ } else if (float64_is_any_nan(f)) {
+ float_status s = { }; /* for snan_bit_is_one */
+ return float64_is_quiet_nan(f, &s) ? 1 << 9 : 1 << 8;
+ } else {
+ return sign ? 1 << 1 : 1 << 6;
+ }
+}
+RVVCALL(OPFVV1, vfclass_v_h, OP_UU_H, H2, H2, fclass_f16)
+RVVCALL(OPFVV1, vfclass_v_w, OP_UU_W, H4, H4, fclass_s)
+RVVCALL(OPFVV1, vfclass_v_d, OP_UU_D, H8, H8, fclass_d)
+GEN_VEXT_V_ENV(vfclass_v_h, 2, 2, clearh)
+GEN_VEXT_V_ENV(vfclass_v_w, 4, 4, clearl)
+GEN_VEXT_V_ENV(vfclass_v_d, 8, 8, clearq)
--
2.23.0
next prev parent reply other threads:[~2020-03-09 8:33 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-09 8:19 [PATCH v3 00/60] target/riscv: support vector extension v0.7.1 LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 01/60] target/riscv: add vector extension field in CPURISCVState LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 02/60] target/riscv: implementation-defined constant parameters LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 03/60] target/riscv: support vector extension csr LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 04/60] target/riscv: add vector configure instruction LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 05/60] target/riscv: add vector stride load and store instructions LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 06/60] target/riscv: add vector index " LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 07/60] target/riscv: add fault-only-first unit stride load LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 08/60] target/riscv: add vector amo operations LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 09/60] target/riscv: vector single-width integer add and subtract LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 10/60] target/riscv: vector widening " LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 11/60] target/riscv: vector integer add-with-carry / subtract-with-borrow instructions LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 12/60] target/riscv: vector bitwise logical instructions LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 13/60] target/riscv: vector single-width bit shift instructions LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 14/60] target/riscv: vector narrowing integer right " LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 15/60] target/riscv: vector integer comparison instructions LIU Zhiwei
2020-03-09 8:19 ` [PATCH v3 17/60] target/riscv: vector single-width integer multiply instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 18/60] target/riscv: vector integer divide instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 19/60] target/riscv: vector widening integer multiply instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 20/60] target/riscv: vector single-width integer multiply-add instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 21/60] target/riscv: vector widening " LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 22/60] target/riscv: vector integer merge and move instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 23/60] target/riscv: vector single-width saturating add and subtract LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 24/60] target/riscv: vector single-width averaging " LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 25/60] target/riscv: vector single-width fractional multiply with rounding and saturation LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 26/60] target/riscv: vector widening saturating scaled multiply-add LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 27/60] target/riscv: vector single-width scaling shift instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 28/60] target/riscv: vector narrowing fixed-point clip instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 29/60] target/riscv: vector single-width floating-point add/subtract instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 30/60] target/riscv: vector widening " LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 31/60] target/riscv: vector single-width floating-point multiply/divide instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 32/60] target/riscv: vector widening floating-point multiply LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 33/60] target/riscv: vector single-width floating-point fused multiply-add instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 34/60] target/riscv: vector widening " LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 35/60] target/riscv: vector floating-point square-root instruction LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 36/60] target/riscv: vector floating-point min/max instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 37/60] target/riscv: vector floating-point sign-injection instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 38/60] target/riscv: vector floating-point compare instructions LIU Zhiwei
2020-03-09 8:20 ` LIU Zhiwei [this message]
2020-03-09 8:20 ` [PATCH v3 40/60] target/riscv: vector floating-point merge instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 41/60] target/riscv: vector floating-point/integer type-convert instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 42/60] target/riscv: widening " LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 43/60] target/riscv: narrowing " LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 45/60] target/riscv: vector wideing integer reduction instructions LIU Zhiwei
2020-03-09 8:20 ` [PATCH v3 48/60] target/riscv: vector mask-register logical instructions LIU Zhiwei
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