From: Max Chou <max.chou@sifive.com>
Date: Wed, 18 Sep 2024 17:14:06 +0000 (+0800)
Subject: target/riscv: Set vdata.vm field for vector load/store whole register instructions
X-Git-Tag: v9.2.0-rc0~8^2~8
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b48381b1ee55053dfad6f5c10ca277bef29ee7c5;p=thirdparty%2Fqemu.git

target/riscv: Set vdata.vm field for vector load/store whole register instructions

The vm field of the vector load/store whole register instruction's
encoding is 1.
The helper function of the vector load/store whole register instructions
may need the vdata.vm field to do some optimizations.

Signed-off-by: Max Chou <max.chou@sifive.com>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20240918171412.150107-2-max.chou@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---

diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
index f8928c44a8b..b9883a5d323 100644
--- a/target/riscv/insn_trans/trans_rvv.c.inc
+++ b/target/riscv/insn_trans/trans_rvv.c.inc
@@ -770,6 +770,7 @@ static bool ld_us_mask_op(DisasContext *s, arg_vlm_v *a, uint8_t eew)
     /* Mask destination register are always tail-agnostic */
     data = FIELD_DP32(data, VDATA, VTA, s->cfg_vta_all_1s);
     data = FIELD_DP32(data, VDATA, VMA, s->vma);
+    data = FIELD_DP32(data, VDATA, VM, 1);
     return ldst_us_trans(a->rd, a->rs1, data, fn, s, false);
 }
 
@@ -787,6 +788,7 @@ static bool st_us_mask_op(DisasContext *s, arg_vsm_v *a, uint8_t eew)
     /* EMUL = 1, NFIELDS = 1 */
     data = FIELD_DP32(data, VDATA, LMUL, 0);
     data = FIELD_DP32(data, VDATA, NF, 1);
+    data = FIELD_DP32(data, VDATA, VM, 1);
     return ldst_us_trans(a->rd, a->rs1, data, fn, s, true);
 }
 
@@ -1106,6 +1108,7 @@ static bool ldst_whole_trans(uint32_t vd, uint32_t rs1, uint32_t nf,
     TCGv_i32 desc;
 
     uint32_t data = FIELD_DP32(0, VDATA, NF, nf);
+    data = FIELD_DP32(data, VDATA, VM, 1);
     dest = tcg_temp_new_ptr();
     desc = tcg_constant_i32(simd_desc(s->cfg_ptr->vlenb,
                                       s->cfg_ptr->vlenb, data));