diff mbox series

[v3,11/30] tcg/loongarch64: Implement sign-/zero-extension ops

Message ID 20210922180927.666273-12-git@xen0n.name (mailing list archive)
State New, archived
Headers show
Series LoongArch64 port of QEMU TCG | expand

Commit Message

WANG Xuerui Sept. 22, 2021, 6:09 p.m. UTC 
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/loongarch64/tcg-target-con-set.h |  1 +
 tcg/loongarch64/tcg-target.c.inc     | 82 ++++++++++++++++++++++++++++
 tcg/loongarch64/tcg-target.h         | 24 ++++----
 3 files changed, 95 insertions(+), 12 deletions(-)
diff mbox series

Patch

diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index 5cc4407367..7e459490ea 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -15,3 +15,4 @@ 
  * tcg-target-con-str.h; the constraint combination is inclusive or.
  */
 C_O0_I1(r)
+C_O1_I1(r, r)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 54c8dd4459..665c04af74 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -334,6 +334,36 @@  static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg rd,
     tcg_out_opc_cu52i_d(s, rd, rd, top);
 }
 
+static void tcg_out_ext8u(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+    tcg_out_opc_andi(s, ret, arg, 0xff);
+}
+
+static void tcg_out_ext16u(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+    tcg_out_opc_bstrpick_w(s, ret, arg, 0, 15);
+}
+
+static void tcg_out_ext32u(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+    tcg_out_opc_bstrpick_d(s, ret, arg, 0, 31);
+}
+
+static void tcg_out_ext8s(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+    tcg_out_opc_sext_b(s, ret, arg);
+}
+
+static void tcg_out_ext16s(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+    tcg_out_opc_sext_h(s, ret, arg);
+}
+
+static void tcg_out_ext32s(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+    tcg_out_opc_addi_w(s, ret, arg, 0);
+}
+
 /*
  * Entry-points
  */
@@ -343,6 +373,7 @@  static void tcg_out_op(TCGContext *s, TCGOpcode opc,
                        const int const_args[TCG_MAX_OP_ARGS])
 {
     TCGArg a0 = args[0];
+    TCGArg a1 = args[1];
 
     switch (opc) {
     case INDEX_op_mb:
@@ -353,6 +384,41 @@  static void tcg_out_op(TCGContext *s, TCGOpcode opc,
         tcg_out_opc_jirl(s, TCG_REG_ZERO, a0, 0);
         break;
 
+    case INDEX_op_ext8s_i32:
+    case INDEX_op_ext8s_i64:
+        tcg_out_ext8s(s, a0, a1);
+        break;
+
+    case INDEX_op_ext8u_i32:
+    case INDEX_op_ext8u_i64:
+        tcg_out_ext8u(s, a0, a1);
+        break;
+
+    case INDEX_op_ext16s_i32:
+    case INDEX_op_ext16s_i64:
+        tcg_out_ext16s(s, a0, a1);
+        break;
+
+    case INDEX_op_ext16u_i32:
+    case INDEX_op_ext16u_i64:
+        tcg_out_ext16u(s, a0, a1);
+        break;
+
+    case INDEX_op_ext32u_i64:
+    case INDEX_op_extu_i32_i64:
+        tcg_out_ext32u(s, a0, a1);
+        break;
+
+    case INDEX_op_ext32s_i64:
+    case INDEX_op_extrl_i64_i32:
+    case INDEX_op_ext_i32_i64:
+        tcg_out_ext32s(s, a0, a1);
+        break;
+
+    case INDEX_op_extrh_i64_i32:
+        tcg_out_opc_srai_d(s, a0, a1, 32);
+        break;
+
     case INDEX_op_mov_i32:  /* Always emitted via tcg_out_mov.  */
     case INDEX_op_mov_i64:
     default:
@@ -366,6 +432,22 @@  static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
     case INDEX_op_goto_ptr:
         return C_O0_I1(r);
 
+    case INDEX_op_ext8s_i32:
+    case INDEX_op_ext8s_i64:
+    case INDEX_op_ext8u_i32:
+    case INDEX_op_ext8u_i64:
+    case INDEX_op_ext16s_i32:
+    case INDEX_op_ext16s_i64:
+    case INDEX_op_ext16u_i32:
+    case INDEX_op_ext16u_i64:
+    case INDEX_op_ext32s_i64:
+    case INDEX_op_ext32u_i64:
+    case INDEX_op_extu_i32_i64:
+    case INDEX_op_extrl_i64_i32:
+    case INDEX_op_extrh_i64_i32:
+    case INDEX_op_ext_i32_i64:
+        return C_O1_I1(r, r);
+
     default:
         g_assert_not_reached();
     }
diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h
index 0fd9b61e6d..c047fc598a 100644
--- a/tcg/loongarch64/tcg-target.h
+++ b/tcg/loongarch64/tcg-target.h
@@ -107,10 +107,10 @@  typedef enum {
 #define TCG_TARGET_HAS_muls2_i32        0
 #define TCG_TARGET_HAS_muluh_i32        0
 #define TCG_TARGET_HAS_mulsh_i32        0
-#define TCG_TARGET_HAS_ext8s_i32        0
-#define TCG_TARGET_HAS_ext16s_i32       0
-#define TCG_TARGET_HAS_ext8u_i32        0
-#define TCG_TARGET_HAS_ext16u_i32       0
+#define TCG_TARGET_HAS_ext8s_i32        1
+#define TCG_TARGET_HAS_ext16s_i32       1
+#define TCG_TARGET_HAS_ext8u_i32        1
+#define TCG_TARGET_HAS_ext16u_i32       1
 #define TCG_TARGET_HAS_bswap16_i32      0
 #define TCG_TARGET_HAS_bswap32_i32      0
 #define TCG_TARGET_HAS_not_i32          0
@@ -138,14 +138,14 @@  typedef enum {
 #define TCG_TARGET_HAS_extract_i64      0
 #define TCG_TARGET_HAS_sextract_i64     0
 #define TCG_TARGET_HAS_extract2_i64     0
-#define TCG_TARGET_HAS_extrl_i64_i32    0
-#define TCG_TARGET_HAS_extrh_i64_i32    0
-#define TCG_TARGET_HAS_ext8s_i64        0
-#define TCG_TARGET_HAS_ext16s_i64       0
-#define TCG_TARGET_HAS_ext32s_i64       0
-#define TCG_TARGET_HAS_ext8u_i64        0
-#define TCG_TARGET_HAS_ext16u_i64       0
-#define TCG_TARGET_HAS_ext32u_i64       0
+#define TCG_TARGET_HAS_extrl_i64_i32    1
+#define TCG_TARGET_HAS_extrh_i64_i32    1
+#define TCG_TARGET_HAS_ext8s_i64        1
+#define TCG_TARGET_HAS_ext16s_i64       1
+#define TCG_TARGET_HAS_ext32s_i64       1
+#define TCG_TARGET_HAS_ext8u_i64        1
+#define TCG_TARGET_HAS_ext16u_i64       1
+#define TCG_TARGET_HAS_ext32u_i64       1
 #define TCG_TARGET_HAS_bswap16_i64      0
 #define TCG_TARGET_HAS_bswap32_i64      0
 #define TCG_TARGET_HAS_bswap64_i64      0