GNU C Library master sources branch master updated. glibc-2.27.9000-55-g3195833

[jsm28 at sourceware dot org]

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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=31958338998aba1cca8090839a4c4866366d76cf

commit 31958338998aba1cca8090839a4c4866366d76cf
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Fri Feb 9 22:56:35 2018 +0000

    Handle narrowing function sNaN test disabling based on argument format.
    
    Testing narrowing functions for x86_64 with GCC 6 showed up a further
    testsuite fix needed: there is no _Float128 sNaN support before GCC 7
    on x86_64 / x86, and the existing tests of SNAN_TESTS only checked it
    for the return type, not for the argument type.  This patch fixes the
    code to check SNAN_TESTS (ARG_FLOAT) as well (in a variable set in
    libm-test-driver.c, since libm-test-support.c is compiled only once
    for each choice of FLOAT).
    
    Tested for x86_64 and x86 with GCC 6 in conjunction with the main
    patch adding narrowing add functions.
    
    	* math/libm-test-driver.c (snan_tests_arg): New variable.
    	* math/libm-test-support.h (snan_tests_arg): New declaration.
    	* math/libm-test-support.c (enable_test): Check snan_tests_arg.

diff --git a/ChangeLog b/ChangeLog
index 4fe83a6..2063f73 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2018-02-09  Joseph Myers  <joseph@codesourcery.com>
 
+	* math/libm-test-driver.c (snan_tests_arg): New variable.
+	* math/libm-test-support.h (snan_tests_arg): New declaration.
+	* math/libm-test-support.c (enable_test): Check snan_tests_arg.
+
 	* math/Makefile (test-type-pairs): New variable.
 	(test-type-pairs-f64xf128-yes): Likewise.
 	(tests): Add test-narrow-macros.
diff --git a/math/libm-test-driver.c b/math/libm-test-driver.c
index 3713e70..30646da 100644
--- a/math/libm-test-driver.c
+++ b/math/libm-test-driver.c
@@ -27,6 +27,12 @@ const int flag_test_finite = TEST_FINITE;
 const int flag_test_inline = TEST_INLINE;
 const int flag_test_mathvec = TEST_MATHVEC;
 
+#if TEST_NARROW
+const int snan_tests_arg = SNAN_TESTS (ARG_FLOAT);
+#else
+const int snan_tests_arg = SNAN_TESTS (FLOAT);
+#endif
+
 #define STRX(x) #x
 #define STR(x) STRX (x)
 #define STR_FLOAT STR (FLOAT)
diff --git a/math/libm-test-support.c b/math/libm-test-support.c
index e59f15b..1a12ed6 100644
--- a/math/libm-test-support.c
+++ b/math/libm-test-support.c
@@ -985,7 +985,8 @@ enable_test (int exceptions)
     return 0;
   if (flag_test_finite && (exceptions & NON_FINITE) != 0)
     return 0;
-  if (!SNAN_TESTS (FLOAT) && (exceptions & TEST_SNAN) != 0)
+  if ((!SNAN_TESTS (FLOAT) || !snan_tests_arg)
+      && (exceptions & TEST_SNAN) != 0)
     return 0;
   if (flag_test_mathvec && (exceptions & NO_TEST_MATHVEC) != 0)
     return 0;
diff --git a/math/libm-test-support.h b/math/libm-test-support.h
index 64206ab..4263774 100644
--- a/math/libm-test-support.h
+++ b/math/libm-test-support.h
@@ -37,6 +37,7 @@ extern const int flag_test_exceptions;
 extern const int flag_test_finite;
 extern const int flag_test_inline;
 extern const int flag_test_mathvec;
+extern const int snan_tests_arg;
 extern const char test_msg[];
 extern const char qtype_str[];
 extern const char doc[];

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

Summary of changes:
 ChangeLog                |    4 ++++
 math/libm-test-driver.c  |    6 ++++++
 math/libm-test-support.c |    3 ++-
 math/libm-test-support.h |    1 +
 4 files changed, 13 insertions(+), 1 deletions(-)


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