soft-fp: make extensions quiet signaling NaNs (bug 16041).

git-mirror · Oct 17, 2013 · e5c2c2d · e5c2c2d
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diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,9 @@
+2013-10-17  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #16041]
+	* soft-fp/op-common.h (FP_EXTEND): When input is a signaling NaN,
+	make result into a quiet NaN.
+
 2013-10-16  Joseph Myers  <joseph@codesourcery.com>
 
 	* soft-fp/adddf3.c: Fix horizontal whitespace.

diff --git a/NEWS b/NEWS
@@ -16,7 +16,7 @@ Version 2.19
   15857, 15859, 15867, 15886, 15887, 15890, 15892, 15893, 15895, 15897,
   15905, 15909, 15919, 15921, 15923, 15939, 15963, 15966, 15988, 16032,
   15905, 15909, 15919, 15921, 15923, 15939, 15963, 15966, 15988, 16032,
-  16034, 16036.
+  16034, 16036, 16041.
 
 * CVE-2012-4412 The strcoll implementation caches indices and rules for
   large collation sequences to optimize multiple passes.  This cache

diff --git a/soft-fp/op-common.h b/soft-fp/op-common.h
@@ -1505,6 +1505,7 @@
 		    FP_SET_EXCEPTION (FP_EX_INVALID);			\
 		  _FP_FRAC_SLL_##dwc (D, (_FP_FRACBITS_##dfs		\
 					  - _FP_FRACBITS_##sfs));	\
+		  _FP_SETQNAN (dfs, dwc, D);				\
 		}							\
 	    }								\
 	}								\