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-rw-r--r--sysdeps/generic/math-tests.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/sysdeps/generic/math-tests.h b/sysdeps/generic/math-tests.h
index 974dda403a..52f4eaee4e 100644
--- a/sysdeps/generic/math-tests.h
+++ b/sysdeps/generic/math-tests.h
@@ -41,6 +41,14 @@
 # define SNAN_TESTS_TYPE_CAST	1
 #endif
 
+/* Indicate whether operations on signaling NaNs preserve the payload
+   (if possible; it is not possible with a zero payload if the high
+   bit is set for signaling NaNs) when generating a quiet NaN, and
+   this should be tested.  */
+#ifndef SNAN_TESTS_PRESERVE_PAYLOAD
+# define SNAN_TESTS_PRESERVE_PAYLOAD	1
+#endif
+
 /* Indicate whether to run tests involving a given rounding mode for a
    given floating-point type, given that fesetround succeeds for that
    mode.  All are run if fesetround succeeds unless overridden.  */