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From: Song Gao <gaosong@loongson.cn>
To: qemu-devel@nongnu.org
Cc: richard.henderson@linaro.org, stefanha@gmail.com
Subject: [PULL 3/5] softfloat: logB(0) should raise divideByZero exception
Date: Mon, 17 Oct 2022 14:39:42 +0800	[thread overview]
Message-ID: <20221017063944.1443723-4-gaosong@loongson.cn> (raw)
In-Reply-To: <20221017063944.1443723-1-gaosong@loongson.cn>

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>
---
 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



  parent reply	other threads:[~2022-10-17  6:57 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-17  6:39 [PULL 0/5] loongarch-to-apply queue Song Gao
2022-10-17  6:39 ` [PULL 1/5] target/loongarch: bstrins.w src register need EXT_NONE Song Gao
2022-10-17  6:39 ` [PULL 2/5] target/loongarch: Fix fnm{sub/add}_{s/d} set wrong flags Song Gao
2022-10-17  6:39 ` Song Gao [this message]
2022-10-17  6:39 ` [PULL 4/5] linux-user: Fix struct statfs ABI on loongarch64 Song Gao
2022-10-17  6:39 ` [PULL 5/5] hw/intc: Fix LoongArch ipi device emulation Song Gao
2022-10-17 21:22 ` [PULL 0/5] loongarch-to-apply queue Stefan Hajnoczi

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