[Qemu-devel] [5179] Implement TCG sign extension ops for x86-64.

[Paul Brook]

Revision: 5179
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5179
Author:   pbrook
Date:     2008-09-07 17:45:15 +0000 (Sun, 07 Sep 2008)

Log Message:
-----------
Implement TCG sign extension ops for x86-64.

Signed-off-by: Paul Brook <address@hidden>

Modified Paths:
--------------
    trunk/tcg/x86_64/tcg-target.c
    trunk/tcg/x86_64/tcg-target.h

Modified: trunk/tcg/x86_64/tcg-target.c
===================================================================
--- trunk/tcg/x86_64/tcg-target.c       2008-09-07 16:42:53 UTC (rev 5178)
+++ trunk/tcg/x86_64/tcg-target.c       2008-09-07 17:45:15 UTC (rev 5179)
@@ -1070,6 +1070,22 @@
         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 @@
     { 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" } },

Modified: trunk/tcg/x86_64/tcg-target.h
===================================================================
--- trunk/tcg/x86_64/tcg-target.h       2008-09-07 16:42:53 UTC (rev 5178)
+++ trunk/tcg/x86_64/tcg-target.h       2008-09-07 17:45:15 UTC (rev 5179)
@@ -60,6 +60,11 @@
 #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