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 v6 55/61] target/riscv: integer extract instruction
Date: Tue, 17 Mar 2020 23:06:47 +0800 [thread overview]
Message-ID: <20200317150653.9008-56-zhiwei_liu@c-sky.com> (raw)
In-Reply-To: <20200317150653.9008-1-zhiwei_liu@c-sky.com>
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
---
target/riscv/insn32.decode | 1 +
target/riscv/insn_trans/trans_rvv.inc.c | 91 +++++++++++++++++++++++++
2 files changed, 92 insertions(+)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 1231628cb2..26dd0f1b1b 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -561,6 +561,7 @@ vmsif_m 010110 . ..... 00011 010 ..... 1010111 @r2_vm
vmsof_m 010110 . ..... 00010 010 ..... 1010111 @r2_vm
viota_m 010110 . ..... 10000 010 ..... 1010111 @r2_vm
vid_v 010110 . 00000 10001 010 ..... 1010111 @r1_vm
+vext_x_v 001100 1 ..... ..... 010 ..... 1010111 @r
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 fae72acaa1..4d7bb6b54e 100644
--- a/target/riscv/insn_trans/trans_rvv.inc.c
+++ b/target/riscv/insn_trans/trans_rvv.inc.c
@@ -2347,3 +2347,94 @@ static bool trans_vid_v(DisasContext *s, arg_vid_v *a)
}
return false;
}
+
+/*
+ *** Vector Permutation Instructions
+ */
+/* Integer Extract Instruction */
+static void extract_element(TCGv dest, TCGv_ptr base,
+ int ofs, int sew)
+{
+ switch (sew) {
+ case MO_8:
+ tcg_gen_ld8u_tl(dest, base, ofs);
+ break;
+ case MO_16:
+ tcg_gen_ld16u_tl(dest, base, ofs);
+ break;
+ default:
+ tcg_gen_ld32u_tl(dest, base, ofs);
+ break;
+#if TARGET_LONG_BITS == 64
+ case MO_64:
+ tcg_gen_ld_i64(dest, base, ofs);
+ break;
+#endif
+ }
+}
+
+/* offset of the idx element with base regsiter r */
+static uint32_t endian_ofs(DisasContext *s, int r, int idx)
+{
+#ifdef HOST_WORDS_BIGENDIAN
+ return vreg_ofs(s, r) + ((idx ^ (7 >> s->sew)) << s->sew);
+#else
+ return vreg_ofs(s, r) + (idx << s->sew);
+#endif
+}
+
+/* adjust the index according to the endian */
+static void endian_adjust(TCGv_i32 ofs, int sew)
+{
+#ifdef HOST_WORDS_BIGENDIAN
+ tcg_gen_xori_i32(ofs, ofs, 7 >> sew);
+#endif
+}
+
+static bool trans_vext_x_v(DisasContext *s, arg_r *a)
+{
+ TCGv dest = tcg_temp_new();
+
+ if (a->rs1 == 0) {
+ /* Special case vmv.x.s rd, vs2. */
+ extract_element(dest, cpu_env,
+ endian_ofs(s, a->rs2, 0), s->sew);
+ } else {
+ int vlen = s->vlen >> (3 + s->sew);
+ TCGv_i32 ofs = tcg_temp_new_i32();
+ TCGv_ptr base = tcg_temp_new_ptr();
+ TCGv t_vlen, t_zero;
+
+ /*
+ * Mask the index to the length so that we do
+ * not produce an out-of-range load.
+ */
+ tcg_gen_trunc_tl_i32(ofs, cpu_gpr[a->rs1]);
+ tcg_gen_andi_i32(ofs, ofs, vlen - 1);
+
+ /* Convert the index to an offset. */
+ endian_adjust(ofs, s->sew);
+ tcg_gen_shli_i32(ofs, ofs, s->sew);
+
+ /* Convert the index to a pointer. */
+ tcg_gen_ext_i32_ptr(base, ofs);
+ tcg_gen_add_ptr(base, base, cpu_env);
+
+ /* Perform the load. */
+ extract_element(dest, base,
+ vreg_ofs(s, a->rs2), s->sew);
+ tcg_temp_free_ptr(base);
+ tcg_temp_free_i32(ofs);
+
+ /* Flush out-of-range indexing to zero. */
+ t_vlen = tcg_const_tl(vlen);
+ t_zero = tcg_const_tl(0);
+ tcg_gen_movcond_tl(TCG_COND_LTU, dest, cpu_gpr[a->rs1],
+ t_vlen, dest, t_zero);
+ tcg_temp_free(t_vlen);
+ tcg_temp_free(t_zero);
+ }
+ gen_set_gpr(a->rd, dest);
+ tcg_temp_free(dest);
+ return true;
+}
--
2.23.0
next prev parent reply other threads:[~2020-03-17 17:00 UTC|newest]
Thread overview: 120+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-17 15:05 [PATCH v6 00/61] target/riscv: support vector extension v0.7.1 LIU Zhiwei
2020-03-17 15:05 ` [PATCH v6 01/61] target/riscv: add vector extension field in CPURISCVState LIU Zhiwei
2020-03-17 15:05 ` [PATCH v6 02/61] target/riscv: implementation-defined constant parameters LIU Zhiwei
2020-03-17 15:05 ` [PATCH v6 03/61] target/riscv: support vector extension csr LIU Zhiwei
2020-03-17 15:05 ` [PATCH v6 04/61] target/riscv: add vector configure instruction LIU Zhiwei
2020-03-23 6:51 ` Kito Cheng
2020-03-23 7:10 ` LIU Zhiwei
2020-03-17 15:05 ` [PATCH v6 05/61] target/riscv: add an internals.h header LIU Zhiwei
2020-03-18 23:45 ` Alistair Francis
2020-03-27 23:41 ` Richard Henderson
2020-03-17 15:05 ` [PATCH v6 06/61] target/riscv: add vector stride load and store instructions LIU Zhiwei
2020-03-18 23:54 ` Alistair Francis
2020-03-17 15:05 ` [PATCH v6 07/61] target/riscv: add vector index " LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 08/61] target/riscv: add fault-only-first unit stride load LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 09/61] target/riscv: add vector amo operations LIU Zhiwei
2020-03-19 17:01 ` Alistair Francis
2020-03-27 23:44 ` Richard Henderson
2020-03-17 15:06 ` [PATCH v6 10/61] target/riscv: vector single-width integer add and subtract LIU Zhiwei
2020-03-20 18:31 ` Alistair Francis
2020-03-27 23:54 ` Richard Henderson
2020-03-28 14:42 ` LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 11/61] target/riscv: vector widening " LIU Zhiwei
2020-03-19 16:28 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 12/61] target/riscv: vector integer add-with-carry / subtract-with-borrow instructions LIU Zhiwei
2020-03-19 17:29 ` Alistair Francis
2020-03-28 0:00 ` Richard Henderson
2020-03-17 15:06 ` [PATCH v6 13/61] target/riscv: vector bitwise logical instructions LIU Zhiwei
2020-03-20 18:34 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 14/61] target/riscv: vector single-width bit shift instructions LIU Zhiwei
2020-03-19 20:10 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 15/61] target/riscv: vector narrowing integer right " LIU Zhiwei
2020-03-20 18:43 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 16/61] target/riscv: vector integer comparison instructions LIU Zhiwei
2020-03-25 17:32 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 17/61] target/riscv: vector integer min/max instructions LIU Zhiwei
2020-03-20 18:49 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 18/61] target/riscv: vector single-width integer multiply instructions LIU Zhiwei
2020-03-25 17:36 ` Alistair Francis
2020-03-28 0:06 ` Richard Henderson
2020-03-28 15:17 ` LIU Zhiwei
2020-03-28 15:47 ` Richard Henderson
2020-03-28 16:13 ` LIU Zhiwei
2020-03-29 4:00 ` LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 19/61] target/riscv: vector integer divide instructions LIU Zhiwei
2020-03-20 18:51 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 20/61] target/riscv: vector widening integer multiply instructions LIU Zhiwei
2020-03-25 17:25 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 21/61] target/riscv: vector single-width integer multiply-add instructions LIU Zhiwei
2020-03-25 17:27 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 22/61] target/riscv: vector widening " LIU Zhiwei
2020-03-25 17:42 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 23/61] target/riscv: vector integer merge and move instructions LIU Zhiwei
2020-03-26 17:57 ` Alistair Francis
2020-03-28 0:18 ` Richard Henderson
2020-03-17 15:06 ` [PATCH v6 24/61] target/riscv: vector single-width saturating add and subtract LIU Zhiwei
2020-03-28 0:20 ` Richard Henderson
2020-03-17 15:06 ` [PATCH v6 25/61] target/riscv: vector single-width averaging " LIU Zhiwei
2020-03-19 3:46 ` LIU Zhiwei
2020-03-28 0:32 ` Richard Henderson
2020-03-28 1:07 ` LIU Zhiwei
2020-03-28 1:22 ` Richard Henderson
2020-03-28 15:37 ` LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 26/61] target/riscv: vector single-width fractional multiply with rounding and saturation LIU Zhiwei
2020-03-28 1:08 ` Richard Henderson
2020-03-28 15:41 ` LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 27/61] target/riscv: vector widening saturating scaled multiply-add LIU Zhiwei
2020-03-28 1:23 ` Richard Henderson
2020-03-17 15:06 ` [PATCH v6 28/61] target/riscv: vector single-width scaling shift instructions LIU Zhiwei
2020-03-28 1:24 ` Richard Henderson
2020-03-17 15:06 ` [PATCH v6 29/61] target/riscv: vector narrowing fixed-point clip instructions LIU Zhiwei
2020-03-28 1:50 ` Richard Henderson
2020-03-17 15:06 ` [PATCH v6 30/61] target/riscv: vector single-width floating-point add/subtract instructions LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 31/61] target/riscv: vector widening " LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 32/61] target/riscv: vector single-width floating-point multiply/divide instructions LIU Zhiwei
2020-03-25 17:46 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 33/61] target/riscv: vector widening floating-point multiply LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 34/61] target/riscv: vector single-width floating-point fused multiply-add instructions LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 35/61] target/riscv: vector widening " LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 36/61] target/riscv: vector floating-point square-root instruction LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 37/61] target/riscv: vector floating-point min/max instructions LIU Zhiwei
2020-03-25 17:47 ` Alistair Francis
2020-03-17 15:06 ` [PATCH v6 38/61] target/riscv: vector floating-point sign-injection instructions LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 39/61] target/riscv: vector floating-point compare instructions LIU Zhiwei
2020-03-28 2:01 ` Richard Henderson
2020-03-28 15:44 ` LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 40/61] target/riscv: vector floating-point classify instructions LIU Zhiwei
2020-03-28 2:06 ` Richard Henderson
2020-03-17 15:06 ` [PATCH v6 41/61] target/riscv: vector floating-point merge instructions LIU Zhiwei
2020-03-28 3:23 ` Richard Henderson
2020-03-28 15:47 ` LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 42/61] target/riscv: vector floating-point/integer type-convert instructions LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 43/61] target/riscv: widening " LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 44/61] target/riscv: narrowing " LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 45/61] target/riscv: vector single-width integer reduction instructions LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 46/61] target/riscv: vector wideing " LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 47/61] target/riscv: vector single-width floating-point " LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 48/61] target/riscv: vector widening " LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 49/61] target/riscv: vector mask-register logical instructions LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 50/61] target/riscv: vector mask population count vmpopc LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 51/61] target/riscv: vmfirst find-first-set mask bit LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 52/61] target/riscv: set-X-first " LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 53/61] target/riscv: vector iota instruction LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 54/61] target/riscv: vector element index instruction LIU Zhiwei
2020-03-17 15:06 ` LIU Zhiwei [this message]
2020-03-28 3:36 ` [PATCH v6 55/61] target/riscv: integer extract instruction Richard Henderson
2020-03-28 16:23 ` LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 56/61] target/riscv: integer scalar move instruction LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 57/61] target/riscv: floating-point scalar move instructions LIU Zhiwei
2020-03-28 3:44 ` Richard Henderson
2020-03-28 16:31 ` LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 58/61] target/riscv: vector slide instructions LIU Zhiwei
2020-03-28 3:50 ` Richard Henderson
2020-03-28 13:40 ` LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 59/61] target/riscv: vector register gather instruction LIU Zhiwei
2020-03-28 3:57 ` Richard Henderson
2020-03-17 15:06 ` [PATCH v6 60/61] target/riscv: vector compress instruction LIU Zhiwei
2020-03-17 15:06 ` [PATCH v6 61/61] target/riscv: configure and turn on vector extension from command line LIU Zhiwei
2020-03-25 17:49 ` Alistair Francis
2020-03-28 4:00 ` Richard Henderson
2020-03-17 20:47 ` [PATCH v6 00/61] target/riscv: support vector extension v0.7.1 no-reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200317150653.9008-56-zhiwei_liu@c-sky.com \
--to=zhiwei_liu@c-sky.com \
--cc=alistair23@gmail.com \
--cc=chihmin.chao@sifive.com \
--cc=guoren@linux.alibaba.com \
--cc=palmer@dabbelt.com \
--cc=qemu-devel@nongnu.org \
--cc=qemu-riscv@nongnu.org \
--cc=richard.henderson@linaro.org \
--cc=wenmeng_zhang@c-sky.com \
--cc=wxy194768@alibaba-inc.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).