tcg-i386: Merge 64-bit generation.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

configure

@@ -2643,6 +2643,8 @@ if test "$ARCH" = "sparc64" ; then
   cflags="-I\$(SRC_PATH)/tcg/sparc $cflags"
 elif test "$ARCH" = "s390x" ; then
   cflags="-I\$(SRC_PATH)/tcg/s390 $cflags"
+elif test "$ARCH" = "x86_64" ; then
+  cflags="-I\$(SRC_PATH)/tcg/i386 $cflags"
 else
   cflags="-I\$(SRC_PATH)/tcg/\$(ARCH) $cflags"
 fi

tcg/i386/tcg-target.h

@@ -23,10 +23,18 @@
  */
 #define TCG_TARGET_I386 1
 
-#define TCG_TARGET_REG_BITS 32
+#if defined(__x86_64__)
+# define TCG_TARGET_REG_BITS 64
+#else
+# define TCG_TARGET_REG_BITS 32
+#endif
 //#define TCG_TARGET_WORDS_BIGENDIAN
 
-#define TCG_TARGET_NB_REGS 8
+#if TCG_TARGET_REG_BITS == 64
+# define TCG_TARGET_NB_REGS 16
+#else
+# define TCG_TARGET_NB_REGS 8
+#endif
 
 enum {
     TCG_REG_EAX = 0,
@@ -37,8 +45,30 @@ enum {
     TCG_REG_EBP,
     TCG_REG_ESI,
     TCG_REG_EDI,
+
+    /* 64-bit registers; always define the symbols to avoid
+       too much if-deffing.  */
+    TCG_REG_R8,
+    TCG_REG_R9,
+    TCG_REG_R10,
+    TCG_REG_R11,
+    TCG_REG_R12,
+    TCG_REG_R13,
+    TCG_REG_R14,
+    TCG_REG_R15,
+    TCG_REG_RAX = TCG_REG_EAX,
+    TCG_REG_RCX = TCG_REG_ECX,
+    TCG_REG_RDX = TCG_REG_EDX,
+    TCG_REG_RBX = TCG_REG_EBX,
+    TCG_REG_RSP = TCG_REG_ESP,
+    TCG_REG_RBP = TCG_REG_EBP,
+    TCG_REG_RSI = TCG_REG_ESI,
+    TCG_REG_RDI = TCG_REG_EDI,
 };
 
+#define TCG_CT_CONST_S32 0x100
+#define TCG_CT_CONST_U32 0x200
+
 /* used for function call generation */
 #define TCG_REG_CALL_STACK TCG_REG_ESP 
 #define TCG_TARGET_STACK_ALIGN 16
@@ -61,10 +91,35 @@ enum {
 // #define TCG_TARGET_HAS_nand_i32
 // #define TCG_TARGET_HAS_nor_i32
 
+#if TCG_TARGET_REG_BITS == 64
+#define TCG_TARGET_HAS_div2_i64
+#define TCG_TARGET_HAS_rot_i64
+#define TCG_TARGET_HAS_ext8s_i64
+#define TCG_TARGET_HAS_ext16s_i64
+#define TCG_TARGET_HAS_ext32s_i64
+#define TCG_TARGET_HAS_ext8u_i64
+#define TCG_TARGET_HAS_ext16u_i64
+#define TCG_TARGET_HAS_ext32u_i64
+#define TCG_TARGET_HAS_bswap16_i64
+#define TCG_TARGET_HAS_bswap32_i64
+#define TCG_TARGET_HAS_bswap64_i64
+#define TCG_TARGET_HAS_neg_i64
+#define TCG_TARGET_HAS_not_i64
+// #define TCG_TARGET_HAS_andc_i64
+// #define TCG_TARGET_HAS_orc_i64
+// #define TCG_TARGET_HAS_eqv_i64
+// #define TCG_TARGET_HAS_nand_i64
+// #define TCG_TARGET_HAS_nor_i64
+#endif
+
 #define TCG_TARGET_HAS_GUEST_BASE
 
 /* Note: must be synced with dyngen-exec.h */
-#define TCG_AREG0 TCG_REG_EBP
+#if TCG_TARGET_REG_BITS == 64
+# define TCG_AREG0 TCG_REG_R14
+#else
+# define TCG_AREG0 TCG_REG_EBP
+#endif
 
 static inline void flush_icache_range(unsigned long start, unsigned long stop)
 {

tcg/x86_64/tcg-target.h

-/*
- * Tiny Code Generator for QEMU
- *
- * Copyright (c) 2008 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#define TCG_TARGET_X86_64 1
-
-#define TCG_TARGET_REG_BITS 64
-//#define TCG_TARGET_WORDS_BIGENDIAN
-
-#define TCG_TARGET_NB_REGS 16
-
-enum {
-    TCG_REG_RAX = 0,
-    TCG_REG_RCX,
-    TCG_REG_RDX,
-    TCG_REG_RBX,
-    TCG_REG_RSP,
-    TCG_REG_RBP,
-    TCG_REG_RSI,
-    TCG_REG_RDI,
-    TCG_REG_R8,
-    TCG_REG_R9,
-    TCG_REG_R10,
-    TCG_REG_R11,
-    TCG_REG_R12,
-    TCG_REG_R13,
-    TCG_REG_R14,
-    TCG_REG_R15,
-};
-
-#define TCG_CT_CONST_S32 0x100
-#define TCG_CT_CONST_U32 0x200
-
-/* used for function call generation */
-#define TCG_REG_CALL_STACK TCG_REG_RSP 
-#define TCG_TARGET_STACK_ALIGN 16
-#define TCG_TARGET_CALL_STACK_OFFSET 0
-
-/* optional instructions */
-#define TCG_TARGET_HAS_div2_i32
-#define TCG_TARGET_HAS_div2_i64
-#define TCG_TARGET_HAS_bswap16_i32
-#define TCG_TARGET_HAS_bswap16_i64
-#define TCG_TARGET_HAS_bswap32_i32
-#define TCG_TARGET_HAS_bswap32_i64
-#define TCG_TARGET_HAS_bswap64_i64
-#define TCG_TARGET_HAS_neg_i32
-#define TCG_TARGET_HAS_neg_i64
-#define TCG_TARGET_HAS_not_i32
-#define TCG_TARGET_HAS_not_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
-#define TCG_TARGET_HAS_ext8u_i32
-#define TCG_TARGET_HAS_ext16u_i32
-#define TCG_TARGET_HAS_ext8u_i64
-#define TCG_TARGET_HAS_ext16u_i64
-#define TCG_TARGET_HAS_ext32u_i64
-#define TCG_TARGET_HAS_rot_i32
-#define TCG_TARGET_HAS_rot_i64
-
-// #define TCG_TARGET_HAS_andc_i32
-// #define TCG_TARGET_HAS_andc_i64
-// #define TCG_TARGET_HAS_orc_i32
-// #define TCG_TARGET_HAS_orc_i64
-// #define TCG_TARGET_HAS_eqv_i32
-// #define TCG_TARGET_HAS_eqv_i64
-// #define TCG_TARGET_HAS_nand_i32
-// #define TCG_TARGET_HAS_nand_i64
-// #define TCG_TARGET_HAS_nor_i32
-// #define TCG_TARGET_HAS_nor_i64
-
-#define TCG_TARGET_HAS_GUEST_BASE
-
-/* Note: must be synced with dyngen-exec.h */
-#define TCG_AREG0 TCG_REG_R14
-
-static inline void flush_icache_range(unsigned long start, unsigned long stop)
-{
-}