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[PATCH v2 2/3] target/s390x: fix NaN propagation rules


From: Ilya Leoshkevich
Subject: [PATCH v2 2/3] target/s390x: fix NaN propagation rules
Date: Wed, 13 Jul 2022 20:26:11 +0200

s390x has the same NaN propagation rules as ARM, and not as x86.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
---
 fpu/softfloat-specialize.c.inc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc
index 943e3301d2..a43ff5e02e 100644
--- a/fpu/softfloat-specialize.c.inc
+++ b/fpu/softfloat-specialize.c.inc
@@ -390,7 +390,8 @@ bool float32_is_signaling_nan(float32 a_, float_status 
*status)
 static int pickNaN(FloatClass a_cls, FloatClass b_cls,
                    bool aIsLargerSignificand, float_status *status)
 {
-#if defined(TARGET_ARM) || defined(TARGET_MIPS) || defined(TARGET_HPPA)
+#if defined(TARGET_ARM) || defined(TARGET_MIPS) || defined(TARGET_HPPA) || \
+    defined(TARGET_S390X)
     /* ARM mandated NaN propagation rules (see FPProcessNaNs()), take
      * the first of:
      *  1. A if it is signaling
-- 
2.35.3




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