target/i386: add a note about gen_jcc1
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 6e89d4f..5d729e6 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -1193,6 +1193,10 @@
{
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);
