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-rw-r--r--sysdeps/mips/mips32/sfp-machine.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/sysdeps/mips/mips32/sfp-machine.h b/sysdeps/mips/mips32/sfp-machine.h
index 4e23aa8b26..5215655029 100644
--- a/sysdeps/mips/mips32/sfp-machine.h
+++ b/sysdeps/mips/mips32/sfp-machine.h
@@ -41,9 +41,20 @@
 # define _FP_QNANNEGATEDP 1
 #endif
 
+#ifdef __mips_nan2008
+/* NaN payloads should be preserved for NAN2008.  */
+# define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)	\
+  do						\
+    {						\
+      R##_s = X##_s;				\
+      _FP_FRAC_COPY_##wc (R, X);		\
+      R##_c = FP_CLS_NAN;			\
+    }						\
+  while (0)
+#else
 /* From my experiments it seems X is chosen unless one of the
    NaNs is sNaN,  in which case the result is NANSIGN/NANFRAC.  */
-#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
+# define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
   do {								\
     if ((_FP_FRAC_HIGH_RAW_##fs(X) |				\
 	 _FP_FRAC_HIGH_RAW_##fs(Y)) & _FP_QNANBIT_##fs)		\
@@ -58,6 +69,7 @@
       }								\
     R##_c = FP_CLS_NAN;						\
   } while (0)
+#endif
 
 #define FP_EX_INVALID           (1 << 4)
 #define FP_EX_DIVZERO           (1 << 3)