From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: richard.henderson@linaro.org
Subject: [PATCH 10/14] target/i386: add a note about gen_jcc1
Date: Sun, 20 Oct 2024 17:53:20 +0200 [thread overview]
Message-ID: <20241020155324.35273-11-pbonzini@redhat.com> (raw)
In-Reply-To: <20241020155324.35273-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
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 6e89d4faef1..5d729e68c98 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);
--
2.46.2
next prev parent reply other threads:[~2024-10-20 15:56 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-20 15:53 [PATCH 00/14] target/i386: miscellaneous flags improvements Paolo Bonzini
2024-10-20 15:53 ` [PATCH 01/14] target/i386: use tcg_gen_ext_tl when applicable Paolo Bonzini
2024-10-20 19:50 ` Richard Henderson
2024-10-20 15:53 ` [PATCH 02/14] target/i386: Tidy cc_op_str usage Paolo Bonzini
2024-10-20 15:53 ` [PATCH 03/14] target/i386: remove CC_OP_CLR Paolo Bonzini
2024-10-20 19:55 ` Richard Henderson
2024-10-20 15:53 ` [PATCH 04/14] target/i386: Rearrange CCOp Paolo Bonzini
2024-10-20 15:53 ` [PATCH 05/14] target/i386: Introduce cc_op_size Paolo Bonzini
2024-10-20 15:53 ` [PATCH 06/14] target/i386: Wrap cc_op_live with a validity check Paolo Bonzini
2024-10-20 20:05 ` Richard Henderson
2024-10-20 15:53 ` [PATCH 07/14] target/i386: optimize computation of ZF from CC_OP_DYNAMIC Paolo Bonzini
2024-10-20 20:18 ` Richard Henderson
2024-10-20 15:53 ` [PATCH 08/14] target/i386: optimize TEST+Jxx sequences Paolo Bonzini
2024-10-20 20:19 ` Richard Henderson
2024-10-20 15:53 ` [PATCH 09/14] target/i386: add a few more trivial CCPrepare cases Paolo Bonzini
2024-10-20 20:23 ` Richard Henderson
2024-10-20 15:53 ` Paolo Bonzini [this message]
2024-10-20 15:53 ` [PATCH 11/14] target/i386: make flag variables unsigned Paolo Bonzini
2024-10-20 20:26 ` Richard Henderson
2024-10-20 15:53 ` [PATCH 12/14] target/i386: use builtin popcnt or parity to compute PF, if available Paolo Bonzini
2024-10-20 20:40 ` Richard Henderson
2024-10-20 15:53 ` [PATCH 13/14] target/i386: use higher-precision arithmetic to compute CF Paolo Bonzini
2024-10-20 15:53 ` [PATCH 14/14] target/i386: use + to put flags together Paolo Bonzini
-- strict thread matches above, loose matches on Subject: below --
2024-10-28 15:18 [PATCH v2 00/14] target/i386: miscellaneous flags improvements Paolo Bonzini
2024-10-28 15:18 ` [PATCH 10/14] target/i386: add a note about gen_jcc1 Paolo Bonzini
2024-10-29 15:44 ` Richard Henderson
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