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| author | Song Gao <gaosong@loongson.cn> | 2022-09-30 10:45:10 +0800 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2022-10-17 10:28:35 +0800 |
| commit | 3cf71969095a99f840cd4b3f4aae696ce44b8078 (patch) | |
| tree | 4e7c32f19d11e2168c1e922a8bf40acc3955b9ff /fpu | |
| parent | 153620126add5c4868308cc5831d400c7e7029ad (diff) | |
| download | qemu-3cf71969095a99f840cd4b3f4aae696ce44b8078.zip qemu-3cf71969095a99f840cd4b3f4aae696ce44b8078.tar.gz qemu-3cf71969095a99f840cd4b3f4aae696ce44b8078.tar.bz2 | |
softfloat: logB(0) should raise divideByZero exception
logB(0) should raise divideByZero exception from IEEE 754-2008 spec 7.3
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220930024510.800005-4-gaosong@loongson.cn>
Diffstat (limited to 'fpu')
| -rw-r--r-- | fpu/softfloat-parts.c.inc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc index a9f268f..2474000 100644 --- a/fpu/softfloat-parts.c.inc +++ b/fpu/softfloat-parts.c.inc @@ -1436,6 +1436,7 @@ static void partsN(log2)(FloatPartsN *a, float_status *s, const FloatFmt *fmt) parts_return_nan(a, s); return; case float_class_zero: + float_raise(float_flag_divbyzero, s); /* log2(0) = -inf */ a->cls = float_class_inf; a->sign = 1; |