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-rw-r--r--tcg/tcg-op.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index daa416a143..7a8015c5a9 100644
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -2586,6 +2586,10 @@ void tcg_gen_exit_tb(TranslationBlock *tb, unsigned idx)
seen this numbered exit before, via tcg_gen_goto_tb. */
tcg_debug_assert(tcg_ctx->goto_tb_issue_mask & (1 << idx));
#endif
+ /* When not chaining, exit without indicating a link. */
+ if (qemu_loglevel_mask(CPU_LOG_TB_NOCHAIN)) {
+ val = 0;
+ }
} else {
/* This is an exit via the exitreq label. */
tcg_debug_assert(idx == TB_EXIT_REQUESTED);
@@ -2603,7 +2607,10 @@ void tcg_gen_goto_tb(unsigned idx)
tcg_debug_assert((tcg_ctx->goto_tb_issue_mask & (1 << idx)) == 0);
tcg_ctx->goto_tb_issue_mask |= 1 << idx;
#endif
- tcg_gen_op1i(INDEX_op_goto_tb, idx);
+ /* When not chaining, we simply fall through to the "fallback" exit. */
+ if (!qemu_loglevel_mask(CPU_LOG_TB_NOCHAIN)) {
+ tcg_gen_op1i(INDEX_op_goto_tb, idx);
+ }
}
void tcg_gen_lookup_and_goto_ptr(void)