tcg: Add INDEX_op_extract2_{i32,i64}

This will let backends implement the double-word shift operation.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index 7c56c92c8e..deacc63e3b 100644
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -823,6 +823,8 @@ void tcg_gen_extract2_i32(TCGv_i32 ret, TCGv_i32 al, TCGv_i32 ah,
         tcg_gen_mov_i32(ret, ah);
     } else if (al == ah) {
         tcg_gen_rotri_i32(ret, al, ofs);
+    } else if (TCG_TARGET_HAS_extract2_i32) {
+        tcg_gen_op4i_i32(INDEX_op_extract2_i32, ret, al, ah, ofs);
     } else {
         TCGv_i32 t0 = tcg_temp_new_i32();
         tcg_gen_shri_i32(t0, al, ofs);
@@ -2333,6 +2335,8 @@ void tcg_gen_extract2_i64(TCGv_i64 ret, TCGv_i64 al, TCGv_i64 ah,
         tcg_gen_mov_i64(ret, ah);
     } else if (al == ah) {
         tcg_gen_rotri_i64(ret, al, ofs);
+    } else if (TCG_TARGET_HAS_extract2_i64) {
+        tcg_gen_op4i_i64(INDEX_op_extract2_i64, ret, al, ah, ofs);
     } else {
         TCGv_i64 t0 = tcg_temp_new_i64();
         tcg_gen_shri_i64(t0, al, ofs);