GNU C Library master sources branch master updated. glibc-2.26-578-g596f701

[jsm28 at sourceware dot org]

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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=596f70134a8f11967c65c1d55a94a3a2718c731d

commit 596f70134a8f11967c65c1d55a94a3a2718c731d
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Mon Oct 16 13:28:30 2017 +0000

    Support running libm tests for float128 as alias for long double.
    
    This patch adds support for running libm tests for float128 in the
    case where the float128 functions are aliases of long double
    functions.  In this case, the sysdeps Makeconfig file
    (i.e. sysdeps/ieee754/ldbl-128/Makeconfig) will need to define
    "float128-alias-fcts = yes" to enable the tests.
    
    Tested for x86_64.  Also tested with build-many-glibcs.py; installed
    stripped shared libraries are unchanged by the patch.  Also tested
    together with changes to enable the float128 aliases.
    
    	* math/Makefile (test-types): Add
    	$(type-float128-$(float128-alias-fcts)).
    	* math/test-float128.h (TYPE_STR): Define conditional on
    	[FLT128_MANT_DIG == LDBL_MANT_DIG].
    	(ULP_IDX): Likewise.
    	(ULP_I_IDX): Likewise.

diff --git a/ChangeLog b/ChangeLog
index 52ea0d9..e45b749 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2017-10-16  Joseph Myers  <joseph@codesourcery.com>
 
+	* math/Makefile (test-types): Add
+	$(type-float128-$(float128-alias-fcts)).
+	* math/test-float128.h (TYPE_STR): Define conditional on
+	[FLT128_MANT_DIG == LDBL_MANT_DIG].
+	(ULP_IDX): Likewise.
+	(ULP_I_IDX): Likewise.
+
 	* stdlib/strtold.c: Include <bits/floatn.h>
 	[__HAVE_FLOAT128 && !__HAVE_DISTINCT_FLOAT128] (strtof128): Define
 	and later undefine as macro.  Define as weak alias if
diff --git a/math/Makefile b/math/Makefile
index 4014471..2d47209 100644
--- a/math/Makefile
+++ b/math/Makefile
@@ -127,7 +127,8 @@ type-float128-suffix := f128
 type-float128-routines := t_sincosf128 k_sincosf128
 type-float128-yes := float128
 types = $(types-basic) $(type-float128-$(float128-fcts))
-test-types = $(test-types-basic) $(type-float128-$(float128-fcts))
+test-types = $(test-types-basic) $(type-float128-$(float128-fcts)) \
+	     $(type-float128-$(float128-alias-fcts))
 
 # For each of the basic types (float, double, long double), replace the
 # occurrences of 'F' in arg 1 with the appropriate suffix for the type.
diff --git a/math/test-float128.h b/math/test-float128.h
index 3132766..3fd9f54 100644
--- a/math/test-float128.h
+++ b/math/test-float128.h
@@ -28,9 +28,15 @@
 #define CFLOAT __CFLOAT128
 #define BUILD_COMPLEX(real, imag) (CMPLXF128 ((real), (imag)))
 #define PREFIX FLT128
-#define TYPE_STR "float128"
-#define ULP_IDX ULP_FLT128
-#define ULP_I_IDX ULP_I_FLT128
+#if FLT128_MANT_DIG == LDBL_MANT_DIG
+# define TYPE_STR "ldouble"
+# define ULP_IDX ULP_LDBL
+# define ULP_I_IDX ULP_I_LDBL
+#else
+# define TYPE_STR "float128"
+# define ULP_IDX ULP_FLT128
+# define ULP_I_IDX ULP_I_FLT128
+#endif
 #define LIT(x) __f128 (x)
 #define LITM(x) x ## f128
 #define FTOSTR strfromf128

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

Summary of changes:
 ChangeLog            |    7 +++++++
 math/Makefile        |    3 ++-
 math/test-float128.h |   12 +++++++++---
 3 files changed, 18 insertions(+), 4 deletions(-)


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