From 44d58e938b649a3d73af9b12aba491ebc39e5f7c Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 14 Aug 2024 13:44:47 +0200 Subject: [PATCH] target/i386: add a note about gen_jcc1 Reviewed-by: Richard Henderson Signed-off-by: Paolo Bonzini --- target/i386/tcg/translate.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index 6e89d4faef..5d729e68c9 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -1193,6 +1193,10 @@ static inline void gen_jcc1(DisasContext *s, int b, TCGLabel *l1) { CCPrepare cc = gen_prepare_cc(s, b, NULL); + /* + * Note that this must be _after_ gen_prepare_cc, because it + * can change the cc_op from CC_OP_DYNAMIC to CC_OP_EFLAGS! + */ gen_update_cc_op(s); if (cc.use_reg2) { tcg_gen_brcond_tl(cc.cond, cc.reg, cc.reg2, l1);