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target/arm: Remove now-unused vfp.fp_status_f16 and FPST_FPCR_F16

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Now we have moved all the uses of vfp.fp_status_f16 and FPST_FPCR_F16
to the new A32 or A64 fields, we can remove these.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250124162836.2332150-19-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2025-01-24 16:27:38 +00:00
parent 230c2bd3f2
commit 3847b5b1fb
4 changed files with 0 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

1
target/arm/cpu.c
View file

@ -575,7 +575,6 @@ static void arm_cpu_reset_hold(Object *obj, ResetType type)
arm_set_default_fp_behaviours(&env->vfp.fp_status_a32);
arm_set_default_fp_behaviours(&env->vfp.fp_status_a64);
arm_set_default_fp_behaviours(&env->vfp.standard_fp_status);
arm_set_default_fp_behaviours(&env->vfp.fp_status_f16);
arm_set_default_fp_behaviours(&env->vfp.fp_status_f16_a32);
arm_set_default_fp_behaviours(&env->vfp.fp_status_f16_a64);
arm_set_default_fp_behaviours(&env->vfp.standard_fp_status_f16);

2
target/arm/cpu.h
View file

@ -635,7 +635,6 @@ typedef struct CPUArchState {
*
* fp_status_a32: is the "normal" fp status for AArch32 insns
* fp_status_a64: is the "normal" fp status for AArch64 insns
* fp_status_fp16: used for half-precision calculations
* fp_status_fp16_a32: used for AArch32 half-precision calculations
* fp_status_fp16_a64: used for AArch64 half-precision calculations
* standard_fp_status : the ARM "Standard FPSCR Value"
@ -663,7 +662,6 @@ typedef struct CPUArchState {
*/
float_status fp_status_a32;
float_status fp_status_a64;
float_status fp_status_f16;
float_status fp_status_f16_a32;
float_status fp_status_f16_a64;
float_status standard_fp_status;

6
target/arm/tcg/translate.h
View file

@ -672,7 +672,6 @@ static inline CPUARMTBFlags arm_tbflags_from_tb(const TranslationBlock *tb)
typedef enum ARMFPStatusFlavour {
FPST_A32,
FPST_A64,
FPST_FPCR_F16,
FPST_A32_F16,
FPST_A64_F16,
FPST_STD,
@ -691,8 +690,6 @@ typedef enum ARMFPStatusFlavour {
* for AArch32 non-FP16 operations controlled by the FPCR
* FPST_A64
* for AArch64 non-FP16 operations controlled by the FPCR
* FPST_FPCR_F16
* for operations controlled by the FPCR where FPCR.FZ16 is to be used
* FPST_A32_F16
* for AArch32 operations controlled by the FPCR where FPCR.FZ16 is to be used
* FPST_A64_F16
@ -714,9 +711,6 @@ static inline TCGv_ptr fpstatus_ptr(ARMFPStatusFlavour flavour)
case FPST_A64:
offset = offsetof(CPUARMState, vfp.fp_status_a64);
break;
case FPST_FPCR_F16:
offset = offsetof(CPUARMState, vfp.fp_status_f16);
break;
case FPST_A32_F16:
offset = offsetof(CPUARMState, vfp.fp_status_f16_a32);
break;

7
target/arm/vfp_helper.c
View file

@ -67,8 +67,6 @@ static uint32_t vfp_get_fpsr_from_host(CPUARMState *env)
i |= get_float_exception_flags(&env->vfp.fp_status_a64);
i |= get_float_exception_flags(&env->vfp.standard_fp_status);
/* FZ16 does not generate an input denormal exception. */
i |= (get_float_exception_flags(&env->vfp.fp_status_f16)
& ~float_flag_input_denormal);
i |= (get_float_exception_flags(&env->vfp.fp_status_f16_a32)
& ~float_flag_input_denormal);
i |= (get_float_exception_flags(&env->vfp.fp_status_f16_a64)
@ -87,7 +85,6 @@ static void vfp_clear_float_status_exc_flags(CPUARMState *env)
*/
set_float_exception_flags(0, &env->vfp.fp_status_a32);
set_float_exception_flags(0, &env->vfp.fp_status_a64);
set_float_exception_flags(0, &env->vfp.fp_status_f16);
set_float_exception_flags(0, &env->vfp.fp_status_f16_a32);
set_float_exception_flags(0, &env->vfp.fp_status_f16_a64);
set_float_exception_flags(0, &env->vfp.standard_fp_status);
@ -118,17 +115,14 @@ static void vfp_set_fpcr_to_host(CPUARMState *env, uint32_t val, uint32_t mask)
}
set_float_rounding_mode(i, &env->vfp.fp_status_a32);
set_float_rounding_mode(i, &env->vfp.fp_status_a64);
set_float_rounding_mode(i, &env->vfp.fp_status_f16);
set_float_rounding_mode(i, &env->vfp.fp_status_f16_a32);
set_float_rounding_mode(i, &env->vfp.fp_status_f16_a64);
}
if (changed & FPCR_FZ16) {
bool ftz_enabled = val & FPCR_FZ16;
set_flush_to_zero(ftz_enabled, &env->vfp.fp_status_f16);
set_flush_to_zero(ftz_enabled, &env->vfp.fp_status_f16_a32);
set_flush_to_zero(ftz_enabled, &env->vfp.fp_status_f16_a64);
set_flush_to_zero(ftz_enabled, &env->vfp.standard_fp_status_f16);
set_flush_inputs_to_zero(ftz_enabled, &env->vfp.fp_status_f16);
set_flush_inputs_to_zero(ftz_enabled, &env->vfp.fp_status_f16_a32);
set_flush_inputs_to_zero(ftz_enabled, &env->vfp.fp_status_f16_a64);
set_flush_inputs_to_zero(ftz_enabled, &env->vfp.standard_fp_status_f16);
@ -144,7 +138,6 @@ static void vfp_set_fpcr_to_host(CPUARMState *env, uint32_t val, uint32_t mask)
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_a64);
set_default_nan_mode(dnan_enabled, &env->vfp.fp_status_f16);
set_default_nan_mode(dnan_enabled, &env->vfp.fp_status_f16_a32);
set_default_nan_mode(dnan_enabled, &env->vfp.fp_status_f16_a64);
}