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target/ppc: Set FloatInfZeroNaNRule explicitly

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Set the FloatInfZeroNaNRule explicitly for the PPC target,
so we can remove the ifdef from pickNaNMulAdd().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-8-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2024-12-11 15:30:54 +00:00
parent e494fe4909
commit 6f759b179f
2 changed files with 8 additions and 6 deletions
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7
fpu/softfloat-specialize.c.inc
View file

@ -503,18 +503,13 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls,
*/ */
rule = float_infzeronan_dnan_never; rule = float_infzeronan_dnan_never;
} }
#elif defined(TARGET_PPC) || defined(TARGET_SPARC) || \ #elif defined(TARGET_SPARC) || \
defined(TARGET_XTENSA) || defined(TARGET_HPPA) || \ defined(TARGET_XTENSA) || defined(TARGET_HPPA) || \
defined(TARGET_I386) || defined(TARGET_LOONGARCH) defined(TARGET_I386) || defined(TARGET_LOONGARCH)
/* /*
* For LoongArch systems that conform to IEEE754-2008, the (inf,zero,nan) * For LoongArch systems that conform to IEEE754-2008, the (inf,zero,nan)
* case sets InvalidOp and returns the input value 'c' * case sets InvalidOp and returns the input value 'c'
*/ */
/*
* For PPC, the (inf,zero,qnan) case sets InvalidOp, but we prefer
* to return an input NaN if we have one (ie c) rather than generating
* a default NaN
*/
rule = float_infzeronan_dnan_never; rule = float_infzeronan_dnan_never;
#endif #endif
} }

7
target/ppc/cpu_init.c
View file

@ -7270,6 +7270,13 @@ static void ppc_cpu_reset_hold(Object *obj, ResetType type)
*/ */
set_float_2nan_prop_rule(float_2nan_prop_ab, &env->fp_status); set_float_2nan_prop_rule(float_2nan_prop_ab, &env->fp_status);
set_float_2nan_prop_rule(float_2nan_prop_ab, &env->vec_status); set_float_2nan_prop_rule(float_2nan_prop_ab, &env->vec_status);
/*
* For PPC, the (inf,zero,qnan) case sets InvalidOp, but we prefer
* to return an input NaN if we have one (ie c) rather than generating
* a default NaN
*/
set_float_infzeronan_rule(float_infzeronan_dnan_never, &env->fp_status);
set_float_infzeronan_rule(float_infzeronan_dnan_never, &env->vec_status);
for (i = 0; i < ARRAY_SIZE(env->spr_cb); i++) { for (i = 0; i < ARRAY_SIZE(env->spr_cb); i++) {
ppc_spr_t *spr = &env->spr_cb[i]; ppc_spr_t *spr = &env->spr_cb[i];