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[v6,13/14] tcg/riscv: Implement vector roti/v/x ops

Message ID 20241016193140.2206352-14-richard.henderson@linaro.org
State Superseded
Headers show
Series tcg/riscv: Add support for vector | expand

Commit Message

Richard Henderson Oct. 16, 2024, 7:31 p.m. UTC 
From: TANG Tiancheng <tangtiancheng.ttc@alibaba-inc.com>

Signed-off-by: TANG Tiancheng <tangtiancheng.ttc@alibaba-inc.com>
Reviewed-by: Liu Zhiwei <zhiwei_liu@linux.alibaba.com>
Message-ID: <20241007025700.47259-12-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/riscv/tcg-target.h     |  6 +++---
 tcg/riscv/tcg-target.c.inc | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+), 3 deletions(-)
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Patch

diff --git a/tcg/riscv/tcg-target.h b/tcg/riscv/tcg-target.h
index 76d30e789b..e6d66cd1b9 100644
--- a/tcg/riscv/tcg-target.h
+++ b/tcg/riscv/tcg-target.h
@@ -154,9 +154,9 @@  typedef enum {
 #define TCG_TARGET_HAS_not_vec          1
 #define TCG_TARGET_HAS_neg_vec          1
 #define TCG_TARGET_HAS_abs_vec          0
-#define TCG_TARGET_HAS_roti_vec         0
-#define TCG_TARGET_HAS_rots_vec         0
-#define TCG_TARGET_HAS_rotv_vec         0
+#define TCG_TARGET_HAS_roti_vec         1
+#define TCG_TARGET_HAS_rots_vec         1
+#define TCG_TARGET_HAS_rotv_vec         1
 #define TCG_TARGET_HAS_shi_vec          1
 #define TCG_TARGET_HAS_shs_vec          1
 #define TCG_TARGET_HAS_shv_vec          1
diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index 2c78ea6507..f8331e4688 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -2488,6 +2488,34 @@  static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
         set_vtype_len_sew(s, type, vece);
         tcg_out_vshifti(s, OPC_VSRA_VI, OPC_VSRA_VX, a0, a1, a2);
         break;
+    case INDEX_op_rotli_vec:
+        set_vtype_len_sew(s, type, vece);
+        tcg_out_vshifti(s, OPC_VSLL_VI, OPC_VSLL_VX, TCG_REG_V0, a1, a2);
+        tcg_out_vshifti(s, OPC_VSRL_VI, OPC_VSRL_VX, a0, a1,
+                        -a2 & ((8 << vece) - 1));
+        tcg_out_opc_vv(s, OPC_VOR_VV, a0, a0, TCG_REG_V0);
+        break;
+    case INDEX_op_rotls_vec:
+        set_vtype_len_sew(s, type, vece);
+        tcg_out_opc_vx(s, OPC_VSLL_VX, TCG_REG_V0, a1, a2);
+        tcg_out_opc_reg(s, OPC_SUBW, TCG_REG_TMP0, TCG_REG_ZERO, a2);
+        tcg_out_opc_vx(s, OPC_VSRL_VX, a0, a1, TCG_REG_TMP0);
+        tcg_out_opc_vv(s, OPC_VOR_VV, a0, a0, TCG_REG_V0);
+        break;
+    case INDEX_op_rotlv_vec:
+        set_vtype_len_sew(s, type, vece);
+        tcg_out_opc_vi(s, OPC_VRSUB_VI, TCG_REG_V0, a2, 0);
+        tcg_out_opc_vv(s, OPC_VSRL_VV, TCG_REG_V0, a1, TCG_REG_V0);
+        tcg_out_opc_vv(s, OPC_VSLL_VV, a0, a1, a2);
+        tcg_out_opc_vv(s, OPC_VOR_VV, a0, a0, TCG_REG_V0);
+        break;
+    case INDEX_op_rotrv_vec:
+        set_vtype_len_sew(s, type, vece);
+        tcg_out_opc_vi(s, OPC_VRSUB_VI, TCG_REG_V0, a2, 0);
+        tcg_out_opc_vv(s, OPC_VSLL_VV, TCG_REG_V0, a1, TCG_REG_V0);
+        tcg_out_opc_vv(s, OPC_VSRL_VV, a0, a1, a2);
+        tcg_out_opc_vv(s, OPC_VOR_VV, a0, a0, TCG_REG_V0);
+        break;
     case INDEX_op_cmp_vec:
         tcg_out_cmpsel(s, type, vece, args[3], a0, a1, a2, c2,
                        -1, true, 0, true);
@@ -2537,6 +2565,10 @@  int tcg_can_emit_vec_op(TCGOpcode opc, TCGType type, unsigned vece)
     case INDEX_op_shri_vec:
     case INDEX_op_shli_vec:
     case INDEX_op_sari_vec:
+    case INDEX_op_rotls_vec:
+    case INDEX_op_rotlv_vec:
+    case INDEX_op_rotrv_vec:
+    case INDEX_op_rotli_vec:
     case INDEX_op_cmp_vec:
     case INDEX_op_cmpsel_vec:
         return 1;
@@ -2695,6 +2727,7 @@  static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
     case INDEX_op_shli_vec:
     case INDEX_op_shri_vec:
     case INDEX_op_sari_vec:
+    case INDEX_op_rotli_vec:
         return C_O1_I1(v, v);
     case INDEX_op_add_vec:
     case INDEX_op_and_vec:
@@ -2715,10 +2748,13 @@  static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
     case INDEX_op_shlv_vec:
     case INDEX_op_shrv_vec:
     case INDEX_op_sarv_vec:
+    case INDEX_op_rotlv_vec:
+    case INDEX_op_rotrv_vec:
         return C_O1_I2(v, v, v);
     case INDEX_op_shls_vec:
     case INDEX_op_shrs_vec:
     case INDEX_op_sars_vec:
+    case INDEX_op_rotls_vec:
         return C_O1_I2(v, v, r);
     case INDEX_op_cmp_vec:
         return C_O1_I2(v, v, vL);