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target/arm: Remove fp_status_a32

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Replace with fp_status[FPST_A32].  As this was the last of the
old structures, we can remove the anonymous union and struct.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250129013857.135256-15-richard.henderson@linaro.org
[PMM: tweak to account for change to is_ebf()]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2025-02-01 16:40:08 +00:00 • committed by Peter Maydell
parent 1c349f43b1
commit 54afbf6632
4 changed files with 12 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

2
target/arm/cpu.c
View file

@ -550,7 +550,7 @@ static void arm_cpu_reset_hold(Object *obj, ResetType type)
set_flush_inputs_to_zero(1, &env->vfp.fp_status[FPST_STD]);
set_default_nan_mode(1, &env->vfp.fp_status[FPST_STD]);
set_default_nan_mode(1, &env->vfp.fp_status[FPST_STD_F16]);
arm_set_default_fp_behaviours(&env->vfp.fp_status_a32);
arm_set_default_fp_behaviours(&env->vfp.fp_status[FPST_A32]);
arm_set_default_fp_behaviours(&env->vfp.fp_status[FPST_A64]);
arm_set_default_fp_behaviours(&env->vfp.fp_status[FPST_STD]);
arm_set_default_fp_behaviours(&env->vfp.fp_status[FPST_A32_F16]);

5
target/arm/cpu.h
View file

@ -687,12 +687,7 @@ typedef struct CPUArchState {
uint32_t scratch[8];
/* There are a number of distinct float control structures. */
union {
float_status fp_status[FPST_COUNT];
struct {
float_status fp_status_a32;
};
};
uint64_t zcr_el[4]; /* ZCR_EL[1-3] */
uint64_t smcr_el[4]; /* SMCR_EL[1-3] */

2
target/arm/tcg/vec_helper.c
View file

@ -2951,7 +2951,7 @@ bool is_ebf(CPUARMState *env, float_status *statusp, float_status *oddstatusp)
*/
bool ebf = is_a64(env) && env->vfp.fpcr & FPCR_EBF;
*statusp = is_a64(env) ? env->vfp.fp_status[FPST_A64] : env->vfp.fp_status_a32;
*statusp = env->vfp.fp_status[is_a64(env) ? FPST_A64 : FPST_A32];
set_default_nan_mode(true, statusp);
if (ebf) {

18
target/arm/vfp_helper.c
View file

@ -117,7 +117,7 @@ static uint32_t vfp_get_fpsr_from_host(CPUARMState *env)
{
uint32_t a32_flags = 0, a64_flags = 0;
a32_flags |= get_float_exception_flags(&env->vfp.fp_status_a32);
a32_flags |= get_float_exception_flags(&env->vfp.fp_status[FPST_A32]);
a32_flags |= get_float_exception_flags(&env->vfp.fp_status[FPST_STD]);
/* FZ16 does not generate an input denormal exception. */
a32_flags |= (get_float_exception_flags(&env->vfp.fp_status[FPST_A32_F16])
@ -155,7 +155,7 @@ static void vfp_clear_float_status_exc_flags(CPUARMState *env)
* values. The caller should have arranged for env->vfp.fpsr to
* be the architecturally up-to-date exception flag information first.
*/
set_float_exception_flags(0, &env->vfp.fp_status_a32);
set_float_exception_flags(0, &env->vfp.fp_status[FPST_A32]);
set_float_exception_flags(0, &env->vfp.fp_status[FPST_A64]);
set_float_exception_flags(0, &env->vfp.fp_status[FPST_A32_F16]);
set_float_exception_flags(0, &env->vfp.fp_status[FPST_A64_F16]);
@ -198,7 +198,7 @@ static void vfp_set_fpcr_to_host(CPUARMState *env, uint32_t val, uint32_t mask)
i = float_round_to_zero;
break;
}
set_float_rounding_mode(i, &env->vfp.fp_status_a32);
set_float_rounding_mode(i, &env->vfp.fp_status[FPST_A32]);
set_float_rounding_mode(i, &env->vfp.fp_status[FPST_A64]);
set_float_rounding_mode(i, &env->vfp.fp_status[FPST_A32_F16]);
set_float_rounding_mode(i, &env->vfp.fp_status[FPST_A64_F16]);
@ -216,10 +216,10 @@ static void vfp_set_fpcr_to_host(CPUARMState *env, uint32_t val, uint32_t mask)
}
if (changed & FPCR_FZ) {
bool ftz_enabled = val & FPCR_FZ;
set_flush_to_zero(ftz_enabled, &env->vfp.fp_status_a32);
set_flush_to_zero(ftz_enabled, &env->vfp.fp_status[FPST_A32]);
set_flush_to_zero(ftz_enabled, &env->vfp.fp_status[FPST_A64]);
/* FIZ is A64 only so FZ always makes A32 code flush inputs to zero */
set_flush_inputs_to_zero(ftz_enabled, &env->vfp.fp_status_a32);
set_flush_inputs_to_zero(ftz_enabled, &env->vfp.fp_status[FPST_A32]);
}
if (changed & (FPCR_FZ | FPCR_AH | FPCR_FIZ)) {
/*
@ -232,7 +232,7 @@ static void vfp_set_fpcr_to_host(CPUARMState *env, uint32_t val, uint32_t mask)
}
if (changed & FPCR_DN) {
bool dnan_enabled = val & FPCR_DN;
set_default_nan_mode(dnan_enabled, &env->vfp.fp_status_a32);
set_default_nan_mode(dnan_enabled, &env->vfp.fp_status[FPST_A32]);
set_default_nan_mode(dnan_enabled, &env->vfp.fp_status[FPST_A64]);
set_default_nan_mode(dnan_enabled, &env->vfp.fp_status[FPST_A32_F16]);
set_default_nan_mode(dnan_enabled, &env->vfp.fp_status[FPST_A64_F16]);
@ -497,8 +497,8 @@ void VFP_HELPER(cmpe, P)(ARGTYPE a, ARGTYPE b, CPUARMState *env) \
FLOATTYPE ## _compare(a, b, &env->vfp.FPST)); \
}
DO_VFP_cmp(h, float16, dh_ctype_f16, fp_status[FPST_A32_F16])
DO_VFP_cmp(s, float32, float32, fp_status_a32)
DO_VFP_cmp(d, float64, float64, fp_status_a32)
DO_VFP_cmp(s, float32, float32, fp_status[FPST_A32])
DO_VFP_cmp(d, float64, float64, fp_status[FPST_A32])
#undef DO_VFP_cmp
/* Integer to float and float to integer conversions */
@ -1385,7 +1385,7 @@ uint64_t HELPER(fjcvtzs)(float64 value, float_status *status)
uint32_t HELPER(vjcvt)(float64 value, CPUARMState *env)
{
uint64_t pair = HELPER(fjcvtzs)(value, &env->vfp.fp_status_a32);
uint64_t pair = HELPER(fjcvtzs)(value, &env->vfp.fp_status[FPST_A32]);
uint32_t result = pair;
uint32_t z = (pair >> 32) == 0;