Implement TCG sign extension ops for x86-64.

Signed-off-by: Paul Brook <paul@codesourcery.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5179 c046a42c-6fe2-441c-8c8c-71466251a162

diff --git a/tcg/x86_64/tcg-target.c b/tcg/x86_64/tcg-target.c
index 183816a..38e164e 100644 (file)
--- a/tcg/x86_64/tcg-target.c
+++ b/tcg/x86_64/tcg-target.c
@@ -1070,6 +1070,22 @@ static inline void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
         tcg_out_modrm(s, 0xf7 | P_REXW, 3, args[0]);
         break;
 
+    case INDEX_op_ext8s_i32:
+        tcg_out_modrm(s, 0xbe | P_EXT | P_REXB, args[0], args[1]);
+        break;
+    case INDEX_op_ext16s_i32:
+        tcg_out_modrm(s, 0xbf | P_EXT, args[0], args[1]);
+        break;
+    case INDEX_op_ext8s_i64:
+        tcg_out_modrm(s, 0xbe | P_EXT | P_REXW, args[0], args[1]);
+        break;
+    case INDEX_op_ext16s_i64:
+        tcg_out_modrm(s, 0xbf | P_EXT | P_REXW, args[0], args[1]);
+        break;
+    case INDEX_op_ext32s_i64:
+        tcg_out_modrm(s, 0x63 | P_REXW, args[0], args[1]);
+        break;
+
     case INDEX_op_qemu_ld8u:
         tcg_out_qemu_ld(s, args, 0);
         break;
@@ -1228,6 +1244,12 @@ static const TCGTargetOpDef x86_64_op_defs[] = {
     { INDEX_op_neg_i32, { "r", "0" } },
     { INDEX_op_neg_i64, { "r", "0" } },
 
+    { INDEX_op_ext8s_i32, { "r", "r"} },
+    { INDEX_op_ext16s_i32, { "r", "r"} },
+    { INDEX_op_ext8s_i64, { "r", "r"} },
+    { INDEX_op_ext16s_i64, { "r", "r"} },
+    { INDEX_op_ext32s_i64, { "r", "r"} },
+
     { INDEX_op_qemu_ld8u, { "r", "L" } },
     { INDEX_op_qemu_ld8s, { "r", "L" } },
     { INDEX_op_qemu_ld16u, { "r", "L" } },

diff --git a/tcg/x86_64/tcg-target.h b/tcg/x86_64/tcg-target.h
index 32486bc..9a0cca0 100644 (file)
--- a/tcg/x86_64/tcg-target.h
+++ b/tcg/x86_64/tcg-target.h
@@ -60,6 +60,11 @@ enum {
 #define TCG_TARGET_HAS_bswap_i64
 #define TCG_TARGET_HAS_neg_i32
 #define TCG_TARGET_HAS_neg_i64
+#define TCG_TARGET_HAS_ext8s_i32
+#define TCG_TARGET_HAS_ext16s_i32
+#define TCG_TARGET_HAS_ext8s_i64
+#define TCG_TARGET_HAS_ext16s_i64
+#define TCG_TARGET_HAS_ext32s_i64
 
 /* Note: must be synced with dyngen-exec.h */
 #define TCG_AREG0 TCG_REG_R14