GNU C Library master sources branch master updated. glibc-2.24-597-ge082ac7

[jsm28 at sourceware dot org]

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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=e082ac7533e75d3dbe5b949b09e843a65348d43b

commit e082ac7533e75d3dbe5b949b09e843a65348d43b
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Mon Jan 2 20:47:17 2017 +0000

    Fix math/test-nearbyint-except for no-exceptions configurations.
    
    The test math/test-nearbyint-except conditions some of its tests on an
    EXCEPTION_TESTS call, not not all that need such a condition.  This
    patch fixes it to use such a conditional for all its tests and to
    return 77 (UNSUPPORTED) if none of the floating-point types tested
    support exceptions.
    
    Tested for mips64 soft float (where the test previously failed and is
    now UNSUPPORTED); also tested for x86_64 to make sure the test still
    PASSes in exceptions-supported cases.
    
    	* math/test-nearbyint-except.c: Include <stdbool.h>.
    	(any_supported): New variable.
    	(TEST_FUNC): Return early if !EXCEPTION_TESTS (FLOAT).  Otherwise
    	set any_supported.
    	(do_test): Return 77 if no floating-point type supported
    	exceptions.

diff --git a/ChangeLog b/ChangeLog
index e6b850c..b3b6df5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2017-01-02  Joseph Myers  <joseph@codesourcery.com>
 
+	* math/test-nearbyint-except.c: Include <stdbool.h>.
+	(any_supported): New variable.
+	(TEST_FUNC): Return early if !EXCEPTION_TESTS (FLOAT).  Otherwise
+	set any_supported.
+	(do_test): Return 77 if no floating-point type supported
+	exceptions.
+
 	* sysdeps/mips/math-tests.h (SNAN_TESTS_PRESERVE_PAYLOAD): Do not
 	condition on [__mips_hard_float].
 
diff --git a/math/test-nearbyint-except.c b/math/test-nearbyint-except.c
index 61b999f..e33846c 100644
--- a/math/test-nearbyint-except.c
+++ b/math/test-nearbyint-except.c
@@ -18,6 +18,7 @@
 
 #include <fenv.h>
 #include <math.h>
+#include <stdbool.h>
 #include <stdio.h>
 
 #include <math-tests.h>
@@ -26,11 +27,16 @@
 # define FE_INVALID 0
 #endif
 
+static bool any_supported = false;
+
 #define TEST_FUNC(NAME, FLOAT, SUFFIX)					\
 static int								\
 NAME (void)								\
 {									\
   int result = 0;							\
+  if (!EXCEPTION_TESTS (FLOAT))						\
+    return 0;								\
+  any_supported = true;							\
   volatile FLOAT a, b __attribute__ ((unused));				\
   a = 1.0;								\
   /* nearbyint must not clear already-raised exceptions.  */		\
@@ -44,7 +50,7 @@ NAME (void)								\
       result = 1;							\
     }									\
   /* But it mustn't lose exceptions from sNaN arguments.  */		\
-  if (SNAN_TESTS (FLOAT) && EXCEPTION_TESTS (FLOAT))			\
+  if (SNAN_TESTS (FLOAT))						\
     {									\
       static volatile FLOAT snan = __builtin_nans ## SUFFIX ("");	\
       volatile FLOAT c __attribute__ ((unused));			\
@@ -75,6 +81,8 @@ do_test (void)
 #ifndef NO_LONG_DOUBLE
   result |= ldouble_test ();
 #endif
+  if (!any_supported)
+    return 77;
   return result;
 }
 

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                    |    7 +++++++
 math/test-nearbyint-except.c |   10 +++++++++-
 2 files changed, 16 insertions(+), 1 deletions(-)


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