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tcg: Implement CPU_LOG_TB_NOCHAIN during expansion

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Rather than test NOCHAIN before linking, do not emit the
goto_tb opcode at all.  We already do this for goto_ptr.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2018-10-06 09:05:30 -07:00
parent 77f7c74719
commit d7f425fdea
2 changed files with 9 additions and 2 deletions
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2
accel/tcg/cpu-exec.c
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@ -416,7 +416,7 @@ static inline TranslationBlock *tb_find(CPUState *cpu,
}
#endif
/* See if we can patch the calling TB. */
if (last_tb && !qemu_loglevel_mask(CPU_LOG_TB_NOCHAIN)) {
if (last_tb) {
tb_add_jump(last_tb, tb_exit, tb);
}
return tb;