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target/arm: Use vfp.fp_status_a64 in A64-only helper functions

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Switch from vfp.fp_status to vfp.fp_status_a64 for helpers which:
 * directly reference an fp_status field
 * are called only from the A64 decoder
 * are not called inside a set_rmode/restore_rmode sequence

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20250124162836.2332150-8-peter.maydell@linaro.org
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Peter Maydell 2025-01-24 16:27:27 +00:00
parent 2208cb46e6
commit 57bd2f30ff
2 changed files with 5 additions and 5 deletions
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2
target/arm/tcg/sme_helper.c
View File

@ -1044,7 +1044,7 @@ void HELPER(sme_fmopa_h)(void *vza, void *vzn, void *vzm, void *vpn,
* round-to-odd -- see above.
*/
fpst_f16 = env->vfp.fp_status_f16;
fpst_std = env->vfp.fp_status;
fpst_std = env->vfp.fp_status_a64;
set_default_nan_mode(true, &fpst_std);
set_default_nan_mode(true, &fpst_f16);
fpst_odd = fpst_std;

8
target/arm/tcg/vec_helper.c
View File

@ -2066,7 +2066,7 @@ void HELPER(gvec_fmlal_a32)(void *vd, void *vn, void *vm,
void HELPER(gvec_fmlal_a64)(void *vd, void *vn, void *vm,
CPUARMState *env, uint32_t desc)
{
do_fmlal(vd, vn, vm, &env->vfp.fp_status, desc,
do_fmlal(vd, vn, vm, &env->vfp.fp_status_a64, desc,
get_flush_inputs_to_zero(&env->vfp.fp_status_f16));
}
@ -2076,7 +2076,7 @@ void HELPER(sve2_fmlal_zzzw_s)(void *vd, void *vn, void *vm, void *va,
intptr_t i, oprsz = simd_oprsz(desc);
uint16_t negn = extract32(desc, SIMD_DATA_SHIFT, 1) << 15;
intptr_t sel = extract32(desc, SIMD_DATA_SHIFT + 1, 1) * sizeof(float16);
float_status *status = &env->vfp.fp_status;
float_status *status = &env->vfp.fp_status_a64;
bool fz16 = get_flush_inputs_to_zero(&env->vfp.fp_status_f16);
for (i = 0; i < oprsz; i += sizeof(float32)) {
@ -2128,7 +2128,7 @@ void HELPER(gvec_fmlal_idx_a32)(void *vd, void *vn, void *vm,
void HELPER(gvec_fmlal_idx_a64)(void *vd, void *vn, void *vm,
CPUARMState *env, uint32_t desc)
{
do_fmlal_idx(vd, vn, vm, &env->vfp.fp_status, desc,
do_fmlal_idx(vd, vn, vm, &env->vfp.fp_status_a64, desc,
get_flush_inputs_to_zero(&env->vfp.fp_status_f16));
}
@ -2139,7 +2139,7 @@ void HELPER(sve2_fmlal_zzxw_s)(void *vd, void *vn, void *vm, void *va,
uint16_t negn = extract32(desc, SIMD_DATA_SHIFT, 1) << 15;
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;
float_status *status = &env->vfp.fp_status_a64;
bool fz16 = get_flush_inputs_to_zero(&env->vfp.fp_status_f16);
for (i = 0; i < oprsz; i += 16) {