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target/loongarch: Set FloatInfZeroNaNRule explicitly

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Set the FloatInfZeroNaNRule explicitly for the loongarch target.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20241202131347.498124-13-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2024-12-11 15:30:56 +00:00
parent 390df9046b
commit 0fb7fa29d3
2 changed files with 6 additions and 6 deletions
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7
fpu/softfloat-specialize.c.inc
View file

@ -489,12 +489,7 @@ static int pickNaNMulAdd(FloatClass a_cls, FloatClass b_cls, FloatClass c_cls,
/* /*
* Temporarily fall back to ifdef ladder * Temporarily fall back to ifdef ladder
*/ */
#if defined(TARGET_HPPA) || \ #if defined(TARGET_HPPA)
defined(TARGET_LOONGARCH)
/*
* For LoongArch systems that conform to IEEE754-2008, the (inf,zero,nan)
* case sets InvalidOp and returns the input value 'c'
*/
rule = float_infzeronan_dnan_never; rule = float_infzeronan_dnan_never;
#endif #endif
} }

5
target/loongarch/tcg/fpu_helper.c
View file

@ -32,6 +32,11 @@ void restore_fp_status(CPULoongArchState *env)
&env->fp_status); &env->fp_status);
set_flush_to_zero(0, &env->fp_status); set_flush_to_zero(0, &env->fp_status);
set_float_2nan_prop_rule(float_2nan_prop_s_ab, &env->fp_status); set_float_2nan_prop_rule(float_2nan_prop_s_ab, &env->fp_status);
/*
* For LoongArch systems that conform to IEEE754-2008, the (inf,zero,nan)
* case sets InvalidOp and returns the input value 'c'
*/
set_float_infzeronan_rule(float_infzeronan_dnan_never, &env->fp_status);
} }
int ieee_ex_to_loongarch(int xcpt) int ieee_ex_to_loongarch(int xcpt)