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target/arm: Use el_is_in_host for sve_zcr_len_for_el

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The ARM pseudocode function NVL uses this predicate now,
and I think it's a bit clearer.  Simplify the pseudocode
condition by noting that IsInHost is always false for EL1.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220607203306.657998-7-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2022-06-08 19:38:56 +01:00 committed by Peter Maydell
parent 19668718ad
commit c6225bebc2
1 changed files with 1 additions and 2 deletions
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target/arm/helper.c
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@ -6238,8 +6238,7 @@ uint32_t sve_zcr_len_for_el(CPUARMState *env, int el)
ARMCPU *cpu = env_archcpu(env);
uint32_t zcr_len = cpu->sve_max_vq - 1;
if (el <= 1 &&
(arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) {
if (el <= 1 && !el_is_in_host(env, el)) {
zcr_len = MIN(zcr_len, 0xf & (uint32_t)env->vfp.zcr_el[1]);
}
if (el <= 2 && arm_feature(env, ARM_FEATURE_EL2)) {