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a=rsa-sha256; c=simple/simple; d=keithp.com; s=mail; t=1739913694; bh=rseh06rZwnj1XEKSik48UBym2dlowjYs00+a91IMU/Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wMFItj/5ACqrAqmuVNiG8L9uwxpcVyUlUSrfdAMBRau7AteCr7S4+vHZmLmPmpDUX HdZPKt2cBxGj6AiKbPgNM/e/DVqpcLBUusrVeHXFFKxkdy3ZGwZadCpQhZsghxIRI4 E31jChVom6NpQm1nu5cKEoTzUNfGuRd2qFC8NuMhs/qtaKFhSD21dELC14eJU8UvEQ 0Kg021iSmExX9XEScKcMzWEaE8a1VsRAlZ5iELoyZXWrdtrf4tsrz51ngd2xCDLcWy iIvtlK+ELgCr6MfE/+PDOTfk/9ydSjYYJ3kXPjV3gDj0zd8OsiFsC+pFWy1tx/j1BM e2mF3fXGXpqZA== To: qemu-devel@nongnu.org Cc: Keith Packard <keithp@keithp.com> Subject: [PATCH 2/4] target/rx: Remove TCG_CALL_NO_WG from helpers which write env Date: Tue, 18 Feb 2025 13:21:01 -0800 Message-ID: <20250218212103.2024039-3-keithp@keithp.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250218212103.2024039-1-keithp@keithp.com> References: <20250215021654.1786679-1-keithp@keithp.com> <20250218212103.2024039-1-keithp@keithp.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" Functions which modify virtual machine state (such as virtual registers stored in memory) must not be marked TCG_CALL_NO_WG as that tells the optimizer that virtual registers values already loaded in machine registers are still valid, hence discards any changes which these helpers may have made. This seems to also mean that functions which set condition codes may also not use this flag Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> --- target/rx/helper.h | 34 +++++++++++++++++----------------- 1 file changed, 17 insertions(+), 17 deletions(-) diff --git a/target/rx/helper.h b/target/rx/helper.h index ebb4739474..8cc38b0cb7 100644 --- a/target/rx/helper.h +++ b/target/rx/helper.h @@ -4,27 +4,27 @@ DEF_HELPER_1(raise_privilege_violation, noreturn, env) DEF_HELPER_1(wait, noreturn, env) DEF_HELPER_2(rxint, noreturn, env, i32) DEF_HELPER_1(rxbrk, noreturn, env) -DEF_HELPER_FLAGS_3(fadd, TCG_CALL_NO_WG, f32, env, f32, f32) -DEF_HELPER_FLAGS_3(fsub, TCG_CALL_NO_WG, f32, env, f32, f32) -DEF_HELPER_FLAGS_3(fmul, TCG_CALL_NO_WG, f32, env, f32, f32) -DEF_HELPER_FLAGS_3(fdiv, TCG_CALL_NO_WG, f32, env, f32, f32) -DEF_HELPER_FLAGS_3(fcmp, TCG_CALL_NO_WG, void, env, f32, f32) -DEF_HELPER_FLAGS_2(ftoi, TCG_CALL_NO_WG, i32, env, f32) -DEF_HELPER_FLAGS_2(round, TCG_CALL_NO_WG, i32, env, f32) -DEF_HELPER_FLAGS_2(itof, TCG_CALL_NO_WG, f32, env, i32) +DEF_HELPER_3(fadd, f32, env, f32, f32) +DEF_HELPER_3(fsub, f32, env, f32, f32) +DEF_HELPER_3(fmul, f32, env, f32, f32) +DEF_HELPER_3(fdiv, f32, env, f32, f32) +DEF_HELPER_3(fcmp, void, env, f32, f32) +DEF_HELPER_2(ftoi, i32, env, f32) +DEF_HELPER_2(round, i32, env, f32) +DEF_HELPER_2(itof, f32, env, i32) DEF_HELPER_2(set_fpsw, void, env, i32) -DEF_HELPER_FLAGS_2(racw, TCG_CALL_NO_WG, void, env, i32) -DEF_HELPER_FLAGS_2(set_psw_rte, TCG_CALL_NO_WG, void, env, i32) -DEF_HELPER_FLAGS_2(set_psw, TCG_CALL_NO_WG, void, env, i32) +DEF_HELPER_2(racw, void, env, i32) +DEF_HELPER_2(set_psw_rte, void, env, i32) +DEF_HELPER_2(set_psw, void, env, i32) DEF_HELPER_1(pack_psw, i32, env) -DEF_HELPER_FLAGS_3(div, TCG_CALL_NO_WG, i32, env, i32, i32) -DEF_HELPER_FLAGS_3(divu, TCG_CALL_NO_WG, i32, env, i32, i32) -DEF_HELPER_FLAGS_1(scmpu, TCG_CALL_NO_WG, void, env) +DEF_HELPER_3(div, i32, env, i32, i32) +DEF_HELPER_3(divu, i32, env, i32, i32) +DEF_HELPER_1(scmpu, void, env) DEF_HELPER_1(smovu, void, env) DEF_HELPER_1(smovf, void, env) DEF_HELPER_1(smovb, void, env) DEF_HELPER_2(sstr, void, env, i32) -DEF_HELPER_FLAGS_2(swhile, TCG_CALL_NO_WG, void, env, i32) -DEF_HELPER_FLAGS_2(suntil, TCG_CALL_NO_WG, void, env, i32) -DEF_HELPER_FLAGS_2(rmpa, TCG_CALL_NO_WG, void, env, i32) +DEF_HELPER_2(swhile, void, env, i32) +DEF_HELPER_2(suntil, void, env, i32) +DEF_HELPER_2(rmpa, void, env, i32) DEF_HELPER_1(satr, void, env) --=20 2.47.2