tcg: Split out tcg_out_ext16u

We will need a backend interface for performing 16-bit zero-extend.
Use it in tcg_reg_alloc_op in the meantime.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 13 insertions, 1 deletions

diff --git a/tcg/tci/tcg-target.c.inc b/tcg/tci/tcg-target.c.inc
index 167f812..49a8394 100644
--- a/tcg/tci/tcg-target.c.inc
+++ b/tcg/tci/tcg-target.c.inc
@@ -604,6 +604,17 @@ static void tcg_out_ext16s(TCGContext *s, TCGType type, TCGReg rd, TCGReg rs)
     }
 }
 
+static void tcg_out_ext16u(TCGContext *s, TCGReg rd, TCGReg rs)
+{
+    if (TCG_TARGET_REG_BITS == 64) {
+        tcg_debug_assert(TCG_TARGET_HAS_ext16u_i64);
+        tcg_out_op_rr(s, INDEX_op_ext16u_i64, rd, rs);
+    } else {
+        tcg_debug_assert(TCG_TARGET_HAS_ext16u_i32);
+        tcg_out_op_rr(s, INDEX_op_ext16u_i32, rd, rs);
+    }
+}
+
 static void tcg_out_addi_ptr(TCGContext *s, TCGReg rd, TCGReg rs,
                              tcg_target_long imm)
 {
@@ -762,7 +773,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
 
     CASE_32_64(neg)      /* Optional (TCG_TARGET_HAS_neg_*). */
     CASE_32_64(not)      /* Optional (TCG_TARGET_HAS_not_*). */
-    CASE_32_64(ext16u)   /* Optional (TCG_TARGET_HAS_ext16u_*). */
     CASE_64(ext32s)      /* Optional (TCG_TARGET_HAS_ext32s_i64). */
     CASE_64(ext32u)      /* Optional (TCG_TARGET_HAS_ext32u_i64). */
     CASE_64(ext_i32)
@@ -845,6 +855,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
     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:
     default:
         g_assert_not_reached();
     }