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[RFC 27/65] target/riscv: rvv-0.9: iota instruction
From: |
frank . chang |
Subject: |
[RFC 27/65] target/riscv: rvv-0.9: iota instruction |
Date: |
Fri, 10 Jul 2020 18:48:41 +0800 |
From: Frank Chang <frank.chang@sifive.com>
Signed-off-by: Frank Chang <frank.chang@sifive.com>
---
target/riscv/insn32.decode | 2 +-
target/riscv/insn_trans/trans_rvv.inc.c | 44 ++++++++++++-------------
target/riscv/vector_helper.c | 2 +-
3 files changed, 24 insertions(+), 24 deletions(-)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 37b2582981..4560bc4379 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -578,7 +578,7 @@ vfirst_m 010000 . ..... 10001 010 ..... 1010111
@r2_vm
vmsbf_m 010100 . ..... 00001 010 ..... 1010111 @r2_vm
vmsif_m 010100 . ..... 00011 010 ..... 1010111 @r2_vm
vmsof_m 010100 . ..... 00010 010 ..... 1010111 @r2_vm
-viota_m 010110 . ..... 10000 010 ..... 1010111 @r2_vm
+viota_m 010100 . ..... 10000 010 ..... 1010111 @r2_vm
vid_v 010110 . 00000 10001 010 ..... 1010111 @r1_vm
vext_x_v 001100 1 ..... ..... 010 ..... 1010111 @r
vmv_s_x 001101 1 00000 ..... 110 ..... 1010111 @r2
diff --git a/target/riscv/insn_trans/trans_rvv.inc.c
b/target/riscv/insn_trans/trans_rvv.inc.c
index c1efb87e8d..0e552c3660 100644
--- a/target/riscv/insn_trans/trans_rvv.inc.c
+++ b/target/riscv/insn_trans/trans_rvv.inc.c
@@ -2785,29 +2785,29 @@ GEN_M_TRANS(vmsof_m)
/* Vector Iota Instruction */
static bool trans_viota_m(DisasContext *s, arg_viota_m *a)
{
- if (vext_check_isa_ill(s) &&
- vext_check_reg(s, a->rd, false) &&
- vext_check_overlap_group(a->rd, 1 << s->lmul, a->rs2, 1) &&
- (a->vm != 0 || a->rd != 0)) {
- uint32_t data = 0;
- TCGLabel *over = gen_new_label();
- tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over);
+ REQUIRE_RVV;
+ VEXT_CHECK_ISA_ILL(s);
+ require_noover(a->rd, s->flmul, a->rs2, 1);
+ require_vm(a->vm, a->rd);
+ require_align(a->rd, s->flmul);
- data = FIELD_DP32(data, VDATA, VM, a->vm);
- data = FIELD_DP32(data, VDATA, LMUL, s->lmul);
- data = FIELD_DP32(data, VDATA, VTA, s->vta);
- data = FIELD_DP32(data, VDATA, VMA, s->vma);
- static gen_helper_gvec_3_ptr * const fns[4] = {
- gen_helper_viota_m_b, gen_helper_viota_m_h,
- gen_helper_viota_m_w, gen_helper_viota_m_d,
- };
- tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0),
- vreg_ofs(s, a->rs2), cpu_env, 0,
- s->vlen / 8, data, fns[s->sew]);
- gen_set_label(over);
- return true;
- }
- return false;
+ uint32_t data = 0;
+ TCGLabel *over = gen_new_label();
+ tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over);
+
+ data = FIELD_DP32(data, VDATA, VM, a->vm);
+ data = FIELD_DP32(data, VDATA, LMUL, s->lmul);
+ data = FIELD_DP32(data, VDATA, VTA, s->vta);
+ data = FIELD_DP32(data, VDATA, VMA, s->vma);
+ static gen_helper_gvec_3_ptr * const fns[4] = {
+ gen_helper_viota_m_b, gen_helper_viota_m_h,
+ gen_helper_viota_m_w, gen_helper_viota_m_d,
+ };
+ tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0),
+ vreg_ofs(s, a->rs2), cpu_env, 0,
+ s->vlen / 8, data, fns[s->sew]);
+ gen_set_label(over);
+ return true;
}
/* Vector Element Index Instruction */
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index bc1363fb7d..71a12c6c9b 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -4748,7 +4748,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2,
CPURISCVState *env, \
CLEAR_FN(vd, vta, vl, vl * sizeof(ETYPE), vlmax * sizeof(ETYPE)); \
}
-GEN_VEXT_VIOTA_M(viota_m_b, uint8_t, H1, clearb)
+GEN_VEXT_VIOTA_M(viota_m_b, uint8_t, H1, clearb)
GEN_VEXT_VIOTA_M(viota_m_h, uint16_t, H2, clearh)
GEN_VEXT_VIOTA_M(viota_m_w, uint32_t, H4, clearl)
GEN_VEXT_VIOTA_M(viota_m_d, uint64_t, H8, clearq)
--
2.17.1
- [RFC 00/65] target/riscv: support vector extension v0.9, frank . chang, 2020/07/10
- [RFC 27/65] target/riscv: rvv-0.9: iota instruction,
frank . chang <=
- [RFC 37/65] target/riscv: rvv-0.9: quad-widening integer multiply-add instructions, frank . chang, 2020/07/10
- [RFC 44/65] target/riscv: rvv-0.9: mask-register logical instructions, frank . chang, 2020/07/10
- [RFC 03/65] target/riscv: fix return value of do_opivx_widen(), frank . chang, 2020/07/10
- [RFC 06/65] target/riscv: rvv-0.9: add vcsr register, frank . chang, 2020/07/10
- [RFC 14/65] target/riscv: rvv-0.9: stride load and store instructions, frank . chang, 2020/07/10
- [RFC 07/65] target/riscv: rvv-0.9: add vector context status, frank . chang, 2020/07/10