diff options
Diffstat (limited to 'tcg/tcg-op.c')
| -rw-r--r-- | tcg/tcg-op.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c index 6a914654f5..daa416a143 100644 --- a/tcg/tcg-op.c +++ b/tcg/tcg-op.c @@ -2574,10 +2574,30 @@ void tcg_gen_extr32_i64(TCGv_i64 lo, TCGv_i64 hi, TCGv_i64 arg) /* QEMU specific operations. */ +void tcg_gen_exit_tb(TranslationBlock *tb, unsigned idx) +{ + uintptr_t val = (uintptr_t)tb + idx; + + if (tb == NULL) { + tcg_debug_assert(idx == 0); + } else if (idx <= TB_EXIT_IDXMAX) { +#ifdef CONFIG_DEBUG_TCG + /* This is an exit following a goto_tb. Verify that we have + seen this numbered exit before, via tcg_gen_goto_tb. */ + tcg_debug_assert(tcg_ctx->goto_tb_issue_mask & (1 << idx)); +#endif + } else { + /* This is an exit via the exitreq label. */ + tcg_debug_assert(idx == TB_EXIT_REQUESTED); + } + + tcg_gen_op1i(INDEX_op_exit_tb, val); +} + void tcg_gen_goto_tb(unsigned idx) { /* We only support two chained exits. */ - tcg_debug_assert(idx <= 1); + tcg_debug_assert(idx <= TB_EXIT_IDXMAX); #ifdef CONFIG_DEBUG_TCG /* Verify that we havn't seen this numbered exit before. */ tcg_debug_assert((tcg_ctx->goto_tb_issue_mask & (1 << idx)) == 0); @@ -2594,7 +2614,7 @@ void tcg_gen_lookup_and_goto_ptr(void) tcg_gen_op1i(INDEX_op_goto_ptr, tcgv_ptr_arg(ptr)); tcg_temp_free_ptr(ptr); } else { - tcg_gen_exit_tb(0); + tcg_gen_exit_tb(NULL, 0); } } |