Shrink tb_jmp_offset to two entries, the other two are never used.

Filip Navara
1 parent 6767d333
Showing 2 changed files with 1 additions and 8 deletions
exec-all.h
translate-all.c
@@ -140,7 +140,7 @@ struct TranslationBlock {
        the code of this one. */
     uint16_t tb_next_offset[2]; /* offset of original jump target */
 #ifdef USE_DIRECT_JUMP
-    uint16_t tb_jmp_offset[4]; /* offset of jump instruction */
+    uint16_t tb_jmp_offset[2]; /* offset of jump instruction */
 #else
     unsigned long tb_next[2]; /* address of jump generated code */
 #endif
@@ -229,9 +229,6 @@ static inline void tb_set_jmp_target(TranslationBlock *tb,
  
     offset = tb->tb_jmp_offset[n];
     tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr);
-    offset = tb->tb_jmp_offset[n + 2];
-    if (offset != 0xffff)
-        tb_set_jmp_target1((unsigned long)(tb->tc_ptr + offset), addr);
 }
  
 #else
@@ -103,10 +103,6 @@ int cpu_gen_code(CPUState *env, TranslationBlock *tb, int *gen_code_size_ptr)
 #ifdef USE_DIRECT_JUMP
     s->tb_jmp_offset = tb->tb_jmp_offset;
     s->tb_next = NULL;
-    /* the following two entries are optional (only used for string ops) */
-    /* XXX: not used ? */
-    tb->tb_jmp_offset[2] = 0xffff;
-    tb->tb_jmp_offset[3] = 0xffff;
 #else
     s->tb_jmp_offset = NULL;
     s->tb_next = tb->tb_next;