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[PATCH v3 3/3] softfloat: logB(0) should raise divideByZero exception
From: |
Song Gao |
Subject: |
[PATCH v3 3/3] softfloat: logB(0) should raise divideByZero exception |
Date: |
Fri, 30 Sep 2022 10:45:10 +0800 |
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>
---
fpu/softfloat-parts.c.inc | 1 +
1 file changed, 1 insertion(+)
diff --git a/fpu/softfloat-parts.c.inc b/fpu/softfloat-parts.c.inc
index a9f268fcab..247400031c 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;
--
2.31.1