tcg/aarch64: Implement field extraction opcodes

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>

diff --git a/tcg/aarch64/tcg-target.h b/tcg/aarch64/tcg-target.h
index 410c31bcfea6112ddb027532ce482c0b0c4eee62..4a74bd8d95ea0b62d58a45a9d960d930314b6756 100644 (file)
--- a/tcg/aarch64/tcg-target.h
+++ b/tcg/aarch64/tcg-target.h
@@ -63,8 +63,8 @@ typedef enum {
 #define TCG_TARGET_HAS_nand_i32         0
 #define TCG_TARGET_HAS_nor_i32          0
 #define TCG_TARGET_HAS_deposit_i32      1
-#define TCG_TARGET_HAS_extract_i32      0
-#define TCG_TARGET_HAS_sextract_i32     0
+#define TCG_TARGET_HAS_extract_i32      1
+#define TCG_TARGET_HAS_sextract_i32     1
 #define TCG_TARGET_HAS_movcond_i32      1
 #define TCG_TARGET_HAS_add2_i32         1
 #define TCG_TARGET_HAS_sub2_i32         1
@@ -95,8 +95,8 @@ typedef enum {
 #define TCG_TARGET_HAS_nand_i64         0
 #define TCG_TARGET_HAS_nor_i64          0
 #define TCG_TARGET_HAS_deposit_i64      1
-#define TCG_TARGET_HAS_extract_i64      0
-#define TCG_TARGET_HAS_sextract_i64     0
+#define TCG_TARGET_HAS_extract_i64      1
+#define TCG_TARGET_HAS_sextract_i64     1
 #define TCG_TARGET_HAS_movcond_i64      1
 #define TCG_TARGET_HAS_add2_i64         1
 #define TCG_TARGET_HAS_sub2_i64         1

diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c
index 1939d3528f275d746ef6b7154a4e5ee9779f8041..c0e9890194508e53528354138ee0219cd91b2c90 100644 (file)
--- a/tcg/aarch64/tcg-target.inc.c
+++ b/tcg/aarch64/tcg-target.inc.c
@@ -1640,6 +1640,16 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
         tcg_out_dep(s, ext, a0, REG0(2), args[3], args[4]);
         break;
 
+    case INDEX_op_extract_i64:
+    case INDEX_op_extract_i32:
+        tcg_out_ubfm(s, ext, a0, a1, a2, a2 + args[3] - 1);
+        break;
+
+    case INDEX_op_sextract_i64:
+    case INDEX_op_sextract_i32:
+        tcg_out_sbfm(s, ext, a0, a1, a2, a2 + args[3] - 1);
+        break;
+
     case INDEX_op_add2_i32:
         tcg_out_addsub2(s, TCG_TYPE_I32, a0, a1, REG0(2), REG0(3),
                         (int32_t)args[4], args[5], const_args[4],
@@ -1785,6 +1795,10 @@ static const TCGTargetOpDef aarch64_op_defs[] = {
 
     { INDEX_op_deposit_i32, { "r", "0", "rZ" } },
     { INDEX_op_deposit_i64, { "r", "0", "rZ" } },
+    { INDEX_op_extract_i32, { "r", "r" } },
+    { INDEX_op_extract_i64, { "r", "r" } },
+    { INDEX_op_sextract_i32, { "r", "r" } },
+    { INDEX_op_sextract_i64, { "r", "r" } },
 
     { INDEX_op_add2_i32, { "r", "r", "rZ", "rZ", "rA", "rMZ" } },
     { INDEX_op_add2_i64, { "r", "r", "rZ", "rZ", "rA", "rMZ" } },