tcg-i386: Add and use tcg_out64

No point in splitting the write into 32-bit pieces.
Reviewed-by: NAurelien Jarno <aurelien@aurel32.net>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

tcg/i386/tcg-target.c

@@ -552,8 +552,7 @@ static void tcg_out_movi(TCGContext *s, TCGType type,
         tcg_out32(s, arg);
     } else {
         tcg_out_opc(s, OPC_MOVL_Iv + P_REXW + LOWREGMASK(ret), 0, ret, 0);
-        tcg_out32(s, arg);
-        tcg_out32(s, arg >> 31 >> 1);
+        tcg_out64(s, arg);
     }
 }
 

tcg/tcg.c

@@ -133,6 +133,13 @@ static inline void tcg_out32(TCGContext *s, uint32_t v)
     s->code_ptr = p + 4;
 }
 
+static inline void tcg_out64(TCGContext *s, uint64_t v)
+{
+    uint8_t *p = s->code_ptr;
+    *(uint64_t *)p = v;
+    s->code_ptr = p + 8;
+}
+
 /* label relocation processing */
 
 static void tcg_out_reloc(TCGContext *s, uint8_t *code_ptr, int type,