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target/arm: Read fz16 from env->vfp.fpcr

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Read the bit from the source, rather than from the proxy via
get_flush_inputs_to_zero.  This makes it clear that it does
not matter which of the float_status structures is used.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250129013857.135256-34-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2025-02-01 16:40:11 +00:00 committed by Peter Maydell
parent d75f680476
commit bbeed9f06a
1 changed files with 6 additions and 6 deletions
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12
target/arm/tcg/vec_helper.c
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@ -2155,7 +2155,7 @@ void HELPER(gvec_fmlal_a32)(void *vd, void *vn, void *vm,
uint64_t negx = is_s ? 0x8000800080008000ull : 0;
do_fmlal(vd, vn, vm, &env->vfp.fp_status[FPST_STD], negx, 0, desc,
get_flush_inputs_to_zero(&env->vfp.fp_status[FPST_A32_F16]));
env->vfp.fpcr & FPCR_FZ16);
}
void HELPER(gvec_fmlal_a64)(void *vd, void *vn, void *vm,
@ -2173,7 +2173,7 @@ void HELPER(gvec_fmlal_a64)(void *vd, void *vn, void *vm,
}
}
do_fmlal(vd, vn, vm, &env->vfp.fp_status[FPST_A64], negx, negf, desc,
get_flush_inputs_to_zero(&env->vfp.fp_status[FPST_A64_F16]));
env->vfp.fpcr & FPCR_FZ16);
}
void HELPER(sve2_fmlal_zzzw_s)(void *vd, void *vn, void *vm, void *va,
@ -2183,7 +2183,7 @@ void HELPER(sve2_fmlal_zzzw_s)(void *vd, void *vn, void *vm, void *va,
bool is_s = extract32(desc, SIMD_DATA_SHIFT, 1);
intptr_t sel = extract32(desc, SIMD_DATA_SHIFT + 1, 1) * sizeof(float16);
float_status *status = &env->vfp.fp_status[FPST_A64];
bool fz16 = get_flush_inputs_to_zero(&env->vfp.fp_status[FPST_A64_F16]);
bool fz16 = env->vfp.fpcr & FPCR_FZ16;
int negx = 0, negf = 0;
if (is_s) {
@ -2236,7 +2236,7 @@ void HELPER(gvec_fmlal_idx_a32)(void *vd, void *vn, void *vm,
uint64_t negx = is_s ? 0x8000800080008000ull : 0;
do_fmlal_idx(vd, vn, vm, &env->vfp.fp_status[FPST_STD], negx, 0, desc,
get_flush_inputs_to_zero(&env->vfp.fp_status[FPST_A32_F16]));
env->vfp.fpcr & FPCR_FZ16);
}
void HELPER(gvec_fmlal_idx_a64)(void *vd, void *vn, void *vm,
@ -2254,7 +2254,7 @@ void HELPER(gvec_fmlal_idx_a64)(void *vd, void *vn, void *vm,
}
}
do_fmlal_idx(vd, vn, vm, &env->vfp.fp_status[FPST_A64], negx, negf, desc,
get_flush_inputs_to_zero(&env->vfp.fp_status[FPST_A64_F16]));
env->vfp.fpcr & FPCR_FZ16);
}
void HELPER(sve2_fmlal_zzxw_s)(void *vd, void *vn, void *vm, void *va,
@ -2265,7 +2265,7 @@ void HELPER(sve2_fmlal_zzxw_s)(void *vd, void *vn, void *vm, void *va,
intptr_t sel = extract32(desc, SIMD_DATA_SHIFT + 1, 1) * sizeof(float16);
intptr_t idx = extract32(desc, SIMD_DATA_SHIFT + 2, 3) * sizeof(float16);
float_status *status = &env->vfp.fp_status[FPST_A64];
bool fz16 = get_flush_inputs_to_zero(&env->vfp.fp_status[FPST_A64_F16]);
bool fz16 = env->vfp.fpcr & FPCR_FZ16;
int negx = 0, negf = 0;
if (is_s) {