diff options
6 files changed, 0 insertions, 651 deletions
diff --git a/toolchain/glibc/patches/2.26/0001-Do-not-use-__builtin_types_compatible_p-in-C-mode-bu.patch b/toolchain/glibc/patches/2.26/0001-Do-not-use-__builtin_types_compatible_p-in-C-mode-bu.patch deleted file mode 100644 index 27a785e31..000000000 --- a/toolchain/glibc/patches/2.26/0001-Do-not-use-__builtin_types_compatible_p-in-C-mode-bu.patch +++ /dev/null @@ -1,50 +0,0 @@ -From f7439f9b1089e17b6721f28e228682831a2f0135 Mon Sep 17 00:00:00 2001 -From: "Gabriel F. T. Gomes" <gftg@linux.vnet.ibm.com> -Date: Mon, 21 Aug 2017 14:23:27 +0200 -Subject: [PATCH] Do not use __builtin_types_compatible_p in C++ mode (bug - 21930) - -The logic to define isinf for float128 depends on the availability of -__builtin_types_compatible_p, which is only available in C mode, -however, the conditionals do not check for C or C++ mode. This lead to -an error in libstdc++ configure, as reported by bug 21930. - -This patch adds a conditional for C mode in the definition of isinf for -float128. No definition is provided in C++ mode, since libstdc++ -headers undefine isinf. - -Tested for powerpc64le (glibc test suite and libstdc++-v3 configure). - - [BZ #21930] - * math/math.h (isinf): Check if in C or C++ mode before using - __builtin_types_compatible_p, since this is a C mode feature. - -(cherry picked from commit 47a67213a9f51c5f8816d240500b10db605d8b77) -[Romain rebase on glibc 2.26] -Signed-off-by: Romain Naour <romain.naour@gmail.com> ---- - math/math.h | 8 ++++++-- - 1 file changed, 6 insertions(+), 2 deletions(-) - -diff --git a/math/math.h b/math/math.h -index e217080..dea8dbe 100644 ---- a/math/math.h -+++ b/math/math.h -@@ -442,8 +442,12 @@ enum - - /* Return nonzero value if X is positive or negative infinity. */ - # if __HAVE_DISTINCT_FLOAT128 && !__GNUC_PREREQ (7,0) \ -- && !defined __SUPPORT_SNAN__ -- /* __builtin_isinf_sign is broken for float128 only before GCC 7.0. */ -+ && !defined __SUPPORT_SNAN__ && !defined __cplusplus -+ /* Since __builtin_isinf_sign is broken for float128 before GCC 7.0, -+ use the helper function, __isinff128, with older compilers. This is -+ only provided for C mode, because in C++ mode, GCC has no support -+ for __builtin_types_compatible_p (and when in C++ mode, this macro is -+ not used anyway, because libstdc++ headers undefine it). */ - # define isinf(x) \ - (__builtin_types_compatible_p (__typeof (x), _Float128) \ - ? __isinff128 (x) : __builtin_isinf_sign (x)) --- -2.9.5 - diff --git a/toolchain/glibc/patches/2.26/0002-Do-not-use-generic-selection-in-C-mode.patch b/toolchain/glibc/patches/2.26/0002-Do-not-use-generic-selection-in-C-mode.patch deleted file mode 100644 index 7321eebd6..000000000 --- a/toolchain/glibc/patches/2.26/0002-Do-not-use-generic-selection-in-C-mode.patch +++ /dev/null @@ -1,56 +0,0 @@ -From bb21afc362a3ecba07ab386a0bc4385e75fbd4b5 Mon Sep 17 00:00:00 2001 -From: "Gabriel F. T. Gomes" <gftg@linux.vnet.ibm.com> -Date: Mon, 14 Aug 2017 17:51:51 -0300 -Subject: [PATCH] Do not use generic selection in C++ mode - -The logic to protect the use of generic selection (_Generic) does not -check for C or C++ mode, however, generic selection is a C-only -feature. - -Tested for powerpc64le. - - * misc/sys/cdefs.h (__HAVE_GENERIC_SELECTION): Define to 0, if - in C++ mode. - -(cherry picked from commit 6913ad65e00bb32417ad39c41d292b976171e27e) -[Romain rebase on glibc 2.26] -Signed-off-by: Romain Naour <romain.naour@gmail.com> ---- - misc/sys/cdefs.h | 19 ++++++++++--------- - 1 file changed, 10 insertions(+), 9 deletions(-) - -diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h -index 06523bf..0c80821 100644 ---- a/misc/sys/cdefs.h -+++ b/misc/sys/cdefs.h -@@ -464,17 +464,18 @@ - # define __glibc_macro_warning(msg) - #endif - --/* Support for generic selection (ISO C11) is available in GCC since -- version 4.9. Previous versions do not provide generic selection, -- even though they might set __STDC_VERSION__ to 201112L, when in -- -std=c11 mode. Thus, we must check for !defined __GNUC__ when -- testing __STDC_VERSION__ for generic selection support. -+/* Generic selection (ISO C11) is a C-only feature, available in GCC -+ since version 4.9. Previous versions do not provide generic -+ selection, even though they might set __STDC_VERSION__ to 201112L, -+ when in -std=c11 mode. Thus, we must check for !defined __GNUC__ -+ when testing __STDC_VERSION__ for generic selection support. - On the other hand, Clang also defines __GNUC__, so a clang-specific - check is required to enable the use of generic selection. */ --#if __GNUC_PREREQ (4, 9) \ -- || __glibc_clang_has_extension (c_generic_selections) \ -- || (!defined __GNUC__ && defined __STDC_VERSION__ \ -- && __STDC_VERSION__ >= 201112L) -+#if !defined __cplusplus \ -+ && (__GNUC_PREREQ (4, 9) \ -+ || __glibc_clang_has_extension (c_generic_selections) \ -+ || (!defined __GNUC__ && defined __STDC_VERSION__ \ -+ && __STDC_VERSION__ >= 201112L)) - # define __HAVE_GENERIC_SELECTION 1 - #else - # define __HAVE_GENERIC_SELECTION 0 --- -2.9.5 - diff --git a/toolchain/glibc/patches/2.26/0003-Provide-a-C-version-of-issignaling-that-does-not-use.patch b/toolchain/glibc/patches/2.26/0003-Provide-a-C-version-of-issignaling-that-does-not-use.patch deleted file mode 100644 index b9cd3df39..000000000 --- a/toolchain/glibc/patches/2.26/0003-Provide-a-C-version-of-issignaling-that-does-not-use.patch +++ /dev/null @@ -1,225 +0,0 @@ -From 9bcf391a21677c6d5fa1c2be71554ec181e24f39 Mon Sep 17 00:00:00 2001 -From: "Gabriel F. T. Gomes" <gftg@linux.vnet.ibm.com> -Date: Mon, 14 Aug 2017 13:46:15 -0300 -Subject: [PATCH] Provide a C++ version of issignaling that does not use - __MATH_TG - -The macro __MATH_TG contains the logic to select between long double and -_Float128, when these types are ABI-distinct. This logic relies on -__builtin_types_compatible_p, which is not available in C++ mode. - -On the other hand, C++ function overloading provides the means to -distinguish between the floating-point types. The overloading -resolution will match the correct parameter regardless of type -qualifiers, i.e.: const and volatile. - -Tested for powerpc64le, s390x, and x86_64. - - * math/math.h [defined __cplusplus] (issignaling): Provide a C++ - definition for issignaling that does not rely on __MATH_TG, - since __MATH_TG uses __builtin_types_compatible_p, which is only - available in C mode. - (CFLAGS-test-math-issignaling.cc): New variable. - * math/Makefile [CXX] (tests): Add test-math-issignaling. - * math/test-math-issignaling.cc: New test for C++ implementation - of type-generic issignaling. - * sysdeps/powerpc/powerpc64le/Makefile [subdir == math] - (CXXFLAGS-test-math-issignaling.cc): Add -mfloat128 to the build - options of test-math-issignaling on powerpc64le. - -(cherry picked from commit a16e8bc08edca84d507715c66d6cddbbc7ed3b62) -[Romain rebase on glibc 2.26] -Signed-off-by: Romain Naour <romain.naour@gmail.com> ---- - math/Makefile | 3 +- - math/math.h | 19 +++++- - math/test-math-issignaling.cc | 113 +++++++++++++++++++++++++++++++++++ - sysdeps/powerpc/powerpc64le/Makefile | 1 + - 4 files changed, 134 insertions(+), 2 deletions(-) - create mode 100644 math/test-math-issignaling.cc - -diff --git a/math/Makefile b/math/Makefile -index e09b0c0..0130fcf 100644 ---- a/math/Makefile -+++ b/math/Makefile -@@ -203,7 +203,7 @@ tests-static = test-fpucw-static test-fpucw-ieee-static \ - test-signgam-ullong-static test-signgam-ullong-init-static - - ifneq (,$(CXX)) --tests += test-math-isinff test-math-iszero -+tests += test-math-isinff test-math-iszero test-math-issignaling - endif - - ifneq (no,$(PERL)) -@@ -350,6 +350,7 @@ CFLAGS-test-signgam-ullong-init-static.c = -std=c99 - - CFLAGS-test-math-isinff.cc = -std=gnu++11 - CFLAGS-test-math-iszero.cc = -std=gnu++11 -+CFLAGS-test-math-issignaling.cc = -std=gnu++11 - - CFLAGS-test-iszero-excess-precision.c = -fexcess-precision=standard - CFLAGS-test-iseqsig-excess-precision.c = -fexcess-precision=standard -diff --git a/math/math.h b/math/math.h -index dea8dbe..add86af 100644 ---- a/math/math.h -+++ b/math/math.h -@@ -474,7 +474,24 @@ enum - # include <bits/iscanonical.h> - - /* Return nonzero value if X is a signaling NaN. */ --# define issignaling(x) __MATH_TG ((x), __issignaling, (x)) -+# ifndef __cplusplus -+# define issignaling(x) __MATH_TG ((x), __issignaling, (x)) -+# else -+ /* In C++ mode, __MATH_TG cannot be used, because it relies on -+ __builtin_types_compatible_p, which is a C-only builtin. On the -+ other hand, overloading provides the means to distinguish between -+ the floating-point types. The overloading resolution will match -+ the correct parameter (regardless of type qualifiers (i.e.: const -+ and volatile). */ -+extern "C++" { -+inline int issignaling (float __val) { return __issignalingf (__val); } -+inline int issignaling (double __val) { return __issignaling (__val); } -+inline int issignaling (long double __val) { return __issignalingl (__val); } -+# if __HAVE_DISTINCT_FLOAT128 -+inline int issignaling (_Float128 __val) { return __issignalingf128 (__val); } -+# endif -+} /* extern C++ */ -+# endif - - /* Return nonzero value if X is subnormal. */ - # define issubnormal(x) (fpclassify (x) == FP_SUBNORMAL) -diff --git a/math/test-math-issignaling.cc b/math/test-math-issignaling.cc -new file mode 100644 -index 0000000..22ae9e1 ---- /dev/null -+++ b/math/test-math-issignaling.cc -@@ -0,0 +1,113 @@ -+/* Test for the C++ implementation of issignaling. -+ Copyright (C) 2017 Free Software Foundation, Inc. -+ This file is part of the GNU C Library. -+ -+ The GNU C Library is free software; you can redistribute it and/or -+ modify it under the terms of the GNU Lesser General Public -+ License as published by the Free Software Foundation; either -+ version 2.1 of the License, or (at your option) any later version. -+ -+ The GNU C Library is distributed in the hope that it will be useful, -+ but WITHOUT ANY WARRANTY; without even the implied warranty of -+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ Lesser General Public License for more details. -+ -+ You should have received a copy of the GNU Lesser General Public -+ License along with the GNU C Library; if not, see -+ <http://www.gnu.org/licenses/>. */ -+ -+#define _GNU_SOURCE 1 -+#include <math.h> -+#include <stdio.h> -+ -+#include <limits> -+ -+/* There is no signaling_NaN for _Float128 in std::numeric_limits. -+ Include ieee754_float128.h and use the bitfields in the union -+ ieee854_float128.ieee_nan to build a signaling NaN. */ -+#if __HAVE_DISTINCT_FLOAT128 -+# include <ieee754_float128.h> -+#endif -+ -+static bool errors; -+ -+static void -+check (int actual, int expected, const char *actual_expr, int line) -+{ -+ if (actual != expected) -+ { -+ errors = true; -+ printf ("%s:%d: error: %s\n", __FILE__, line, actual_expr); -+ printf ("%s:%d: expected: %d\n", __FILE__, line, expected); -+ printf ("%s:%d: actual: %d\n", __FILE__, line, actual); -+ } -+} -+ -+#define CHECK(actual, expected) \ -+ check ((actual), (expected), #actual, __LINE__) -+ -+template <class T> -+static void -+check_type () -+{ -+ typedef std::numeric_limits<T> limits; -+ CHECK (issignaling (T{0}), 0); -+ if (limits::has_infinity) -+ { -+ CHECK (issignaling (limits::infinity ()), 0); -+ CHECK (issignaling (-limits::infinity ()), 0); -+ } -+ if (limits::has_quiet_NaN) -+ CHECK (issignaling (limits::quiet_NaN ()), 0); -+ if (limits::has_signaling_NaN) -+ CHECK (issignaling (limits::signaling_NaN ()), 1); -+} -+ -+#if __HAVE_DISTINCT_FLOAT128 -+static void -+check_float128 () -+{ -+ ieee854_float128 q; -+ -+ q.d = 0; -+ CHECK (issignaling (q.d), 0); -+ -+ /* Infinity. */ -+ q.ieee.negative = 0; -+ q.ieee.exponent = 0x7FFF; -+ q.ieee.mantissa0 = 0x0000; -+ q.ieee.mantissa1 = 0x00000000; -+ q.ieee.mantissa2 = 0x00000000; -+ q.ieee.mantissa3 = 0x00000000; -+ CHECK (issignaling (q.d), 0); -+ -+ /* Quiet NaN. */ -+ q.ieee_nan.quiet_nan = 1; -+ q.ieee_nan.mantissa0 = 0x0000; -+ CHECK (issignaling (q.d), 0); -+ -+ /* Still a quiet NaN. */ -+ q.ieee_nan.quiet_nan = 1; -+ q.ieee_nan.mantissa0 = 0x4000; -+ CHECK (issignaling (q.d), 0); -+ -+ /* Signaling NaN. */ -+ q.ieee_nan.quiet_nan = 0; -+ q.ieee_nan.mantissa0 = 0x4000; -+ CHECK (issignaling (q.d), 1); -+} -+#endif -+ -+static int -+do_test (void) -+{ -+ check_type<float> (); -+ check_type<double> (); -+ check_type<long double> (); -+#if __HAVE_DISTINCT_FLOAT128 -+ check_float128 (); -+#endif -+ return errors; -+} -+ -+#include <support/test-driver.c> -diff --git a/sysdeps/powerpc/powerpc64le/Makefile b/sysdeps/powerpc/powerpc64le/Makefile -index 77617b6..19adbfa 100644 ---- a/sysdeps/powerpc/powerpc64le/Makefile -+++ b/sysdeps/powerpc/powerpc64le/Makefile -@@ -16,6 +16,7 @@ $(foreach suf,$(all-object-suffixes),%f128_r$(suf)): CFLAGS += -mfloat128 - $(foreach suf,$(all-object-suffixes),$(objpfx)test-float128%$(suf)): CFLAGS += -mfloat128 - $(foreach suf,$(all-object-suffixes),$(objpfx)test-ifloat128%$(suf)): CFLAGS += -mfloat128 - CFLAGS-libm-test-support-float128.c += -mfloat128 -+CFLAGS-test-math-issignaling.cc += -mfloat128 - $(objpfx)test-float128% $(objpfx)test-ifloat128%: \ - gnulib-tests += $(f128-loader-link) - endif --- -2.9.5 - diff --git a/toolchain/glibc/patches/2.26/0004-Fix-the-C-version-of-issignaling-when-__NO_LONG_DOUB.patch b/toolchain/glibc/patches/2.26/0004-Fix-the-C-version-of-issignaling-when-__NO_LONG_DOUB.patch deleted file mode 100644 index 5e32f754d..000000000 --- a/toolchain/glibc/patches/2.26/0004-Fix-the-C-version-of-issignaling-when-__NO_LONG_DOUB.patch +++ /dev/null @@ -1,47 +0,0 @@ -From 9dbd8386a1b706beb30291a7e76bbfe69c2620cf Mon Sep 17 00:00:00 2001 -From: "Gabriel F. T. Gomes" <gftg@linux.vnet.ibm.com> -Date: Wed, 23 Aug 2017 10:16:54 -0300 -Subject: [PATCH] Fix the C++ version of issignaling when __NO_LONG_DOUBLE_MATH - is defined - -When __NO_LONG_DOUBLE_MATH is defined, __issignalingl is not available, -thus issignaling with long double argument should call __issignaling, -instead. - -Tested for powerpc64le. - - * math/math.h [defined __cplusplus] (issignaling): In the long - double case, call __issignalingl only if __NO_LONG_DOUBLE_MATH - is not defined. Call __issignaling, otherwise. - -(cherry picked from commit 3d7b66f66cb223e899a7ebc0f4c20f13e711c9e0) -[Romain rebase on glibc 2.26] -Signed-off-by: Romain Naour <romain.naour@gmail.com> ---- - math/math.h | 10 +++++++++- - 1 file changed, 9 insertions(+), 1 deletion(-) - -diff --git a/math/math.h b/math/math.h -index add86af..60dfa31 100644 ---- a/math/math.h -+++ b/math/math.h -@@ -486,7 +486,15 @@ enum - extern "C++" { - inline int issignaling (float __val) { return __issignalingf (__val); } - inline int issignaling (double __val) { return __issignaling (__val); } --inline int issignaling (long double __val) { return __issignalingl (__val); } -+inline int -+issignaling (long double __val) -+{ -+# ifdef __NO_LONG_DOUBLE_MATH -+ return __issignaling (__val); -+# else -+ return __issignalingl (__val); -+# endif -+} - # if __HAVE_DISTINCT_FLOAT128 - inline int issignaling (_Float128 __val) { return __issignalingf128 (__val); } - # endif --- -2.9.5 - diff --git a/toolchain/glibc/patches/2.26/0005-Provide-a-C-version-of-iszero-that-does-not-use-__MA.patch b/toolchain/glibc/patches/2.26/0005-Provide-a-C-version-of-iszero-that-does-not-use-__MA.patch deleted file mode 100644 index e12c8438f..000000000 --- a/toolchain/glibc/patches/2.26/0005-Provide-a-C-version-of-iszero-that-does-not-use-__MA.patch +++ /dev/null @@ -1,210 +0,0 @@ -From 45970aa26d1af87b016ef95b4b35c566aeb6e841 Mon Sep 17 00:00:00 2001 -From: "Gabriel F. T. Gomes" <gftg@linux.vnet.ibm.com> -Date: Tue, 22 Aug 2017 16:34:42 -0300 -Subject: [PATCH] Provide a C++ version of iszero that does not use __MATH_TG - (bug 21930) - -When signaling nans are enabled (with -fsignaling-nans), the C++ version -of iszero uses the fpclassify macro, which is defined with __MATH_TG. -However, when support for float128 is available, __MATH_TG uses the -builtin __builtin_types_compatible_p, which is only available in C mode. - -This patch refactors the C++ version of iszero so that it uses function -overloading to select between the floating-point types, instead of -relying on fpclassify and __MATH_TG. - -Tested for powerpc64le, s390x, x86_64, and with build-many-glibcs.py. - - [BZ #21930] - * math/math.h [defined __cplusplus && defined __SUPPORT_SNAN__] - (iszero): New C++ implementation that does not use - fpclassify/__MATH_TG/__builtin_types_compatible_p, when - signaling nans are enabled, since __builtin_types_compatible_p - is a C-only feature. - * math/test-math-iszero.cc: When __HAVE_DISTINCT_FLOAT128 is - defined, include ieee754_float128.h for access to the union and - member ieee854_float128.ieee. - [__HAVE_DISTINCT_FLOAT128] (do_test): Call check_float128. - [__HAVE_DISTINCT_FLOAT128] (check_float128): New function. - * sysdeps/powerpc/powerpc64le/Makefile [subdir == math] - (CXXFLAGS-test-math-iszero.cc): Add -mfloat128 to the build - options of test-math-zero on powerpc64le. - -(cherry picked from commit 42496114ec0eb7d6d039d05d4262e109951c600c) -[Romain rebase on glibc 2.26] -Signed-off-by: Romain Naour <romain.naour@gmail.com> ---- - math/math.h | 33 +++++++++++++-- - math/test-math-iszero.cc | 79 ++++++++++++++++++++++++++++++++++++ - sysdeps/powerpc/powerpc64le/Makefile | 3 +- - 3 files changed, 110 insertions(+), 5 deletions(-) - -diff --git a/math/math.h b/math/math.h -index 60dfa31..7c0fc6d 100644 ---- a/math/math.h -+++ b/math/math.h -@@ -513,15 +513,40 @@ inline int issignaling (_Float128 __val) { return __issignalingf128 (__val); } - # endif - # else /* __cplusplus */ - extern "C++" { -+# ifdef __SUPPORT_SNAN__ -+inline int -+iszero (float __val) -+{ -+ return __fpclassifyf (__val) == FP_ZERO; -+} -+inline int -+iszero (double __val) -+{ -+ return __fpclassify (__val) == FP_ZERO; -+} -+inline int -+iszero (long double __val) -+{ -+# ifdef __NO_LONG_DOUBLE_MATH -+ return __fpclassify (__val) == FP_ZERO; -+# else -+ return __fpclassifyl (__val) == FP_ZERO; -+# endif -+} -+# if __HAVE_DISTINCT_FLOAT128 -+inline int -+iszero (_Float128 __val) -+{ -+ return __fpclassifyf128 (__val) == FP_ZERO; -+} -+# endif -+# else - template <class __T> inline bool - iszero (__T __val) - { --# ifdef __SUPPORT_SNAN__ -- return fpclassify (__val) == FP_ZERO; --# else - return __val == 0; --# endif - } -+# endif - } /* extern C++ */ - # endif /* __cplusplus */ - #endif /* Use IEC_60559_BFP_EXT. */ -diff --git a/math/test-math-iszero.cc b/math/test-math-iszero.cc -index 027e972..5c07261 100644 ---- a/math/test-math-iszero.cc -+++ b/math/test-math-iszero.cc -@@ -22,6 +22,13 @@ - - #include <limits> - -+/* Support for _Float128 in std::numeric_limits is limited. -+ Include ieee754_float128.h and use the bitfields in the union -+ ieee854_float128.ieee_nan to build corner-case inputs. */ -+#if __HAVE_DISTINCT_FLOAT128 -+# include <ieee754_float128.h> -+#endif -+ - static bool errors; - - static void -@@ -72,12 +79,84 @@ check_type () - std::numeric_limits<T>::has_denorm == std::denorm_absent); - } - -+#if __HAVE_DISTINCT_FLOAT128 -+static void -+check_float128 () -+{ -+ ieee854_float128 q; -+ -+ q.d = 0.0Q; -+ CHECK (iszero (q.d), 1); -+ q.d = -0.0Q; -+ CHECK (iszero (q.d), 1); -+ q.d = 1.0Q; -+ CHECK (iszero (q.d), 0); -+ q.d = -1.0Q; -+ CHECK (iszero (q.d), 0); -+ -+ /* Normal min. */ -+ q.ieee.negative = 0; -+ q.ieee.exponent = 0x0001; -+ q.ieee.mantissa0 = 0x0000; -+ q.ieee.mantissa1 = 0x00000000; -+ q.ieee.mantissa2 = 0x00000000; -+ q.ieee.mantissa3 = 0x00000000; -+ CHECK (iszero (q.d), 0); -+ q.ieee.negative = 1; -+ CHECK (iszero (q.d), 0); -+ -+ /* Normal max. */ -+ q.ieee.negative = 0; -+ q.ieee.exponent = 0x7FFE; -+ q.ieee.mantissa0 = 0xFFFF; -+ q.ieee.mantissa1 = 0xFFFFFFFF; -+ q.ieee.mantissa2 = 0xFFFFFFFF; -+ q.ieee.mantissa3 = 0xFFFFFFFF; -+ CHECK (iszero (q.d), 0); -+ q.ieee.negative = 1; -+ CHECK (iszero (q.d), 0); -+ -+ /* Infinity. */ -+ q.ieee.negative = 0; -+ q.ieee.exponent = 0x7FFF; -+ q.ieee.mantissa0 = 0x0000; -+ q.ieee.mantissa1 = 0x00000000; -+ q.ieee.mantissa2 = 0x00000000; -+ q.ieee.mantissa3 = 0x00000000; -+ CHECK (iszero (q.d), 0); -+ -+ /* Quiet NaN. */ -+ q.ieee_nan.quiet_nan = 1; -+ q.ieee_nan.mantissa0 = 0x0000; -+ CHECK (iszero (q.d), 0); -+ -+ /* Signaling NaN. */ -+ q.ieee_nan.quiet_nan = 0; -+ q.ieee_nan.mantissa0 = 0x4000; -+ CHECK (iszero (q.d), 0); -+ -+ /* Denormal min. */ -+ q.ieee.negative = 0; -+ q.ieee.exponent = 0x0000; -+ q.ieee.mantissa0 = 0x0000; -+ q.ieee.mantissa1 = 0x00000000; -+ q.ieee.mantissa2 = 0x00000000; -+ q.ieee.mantissa3 = 0x00000001; -+ CHECK (iszero (q.d), 0); -+ q.ieee.negative = 1; -+ CHECK (iszero (q.d), 0); -+} -+#endif -+ - static int - do_test (void) - { - check_type<float> (); - check_type<double> (); - check_type<long double> (); -+#if __HAVE_DISTINCT_FLOAT128 -+ check_float128 (); -+#endif - return errors; - } - -diff --git a/sysdeps/powerpc/powerpc64le/Makefile b/sysdeps/powerpc/powerpc64le/Makefile -index 19adbfa..dea2290 100644 ---- a/sysdeps/powerpc/powerpc64le/Makefile -+++ b/sysdeps/powerpc/powerpc64le/Makefile -@@ -17,7 +17,8 @@ $(foreach suf,$(all-object-suffixes),$(objpfx)test-float128%$(suf)): CFLAGS += - - $(foreach suf,$(all-object-suffixes),$(objpfx)test-ifloat128%$(suf)): CFLAGS += -mfloat128 - CFLAGS-libm-test-support-float128.c += -mfloat128 - CFLAGS-test-math-issignaling.cc += -mfloat128 --$(objpfx)test-float128% $(objpfx)test-ifloat128%: \ -+CFLAGS-test-math-iszero.cc += -mfloat128 -+$(objpfx)test-float128% $(objpfx)test-ifloat128% $(objpfx)test-math-iszero: \ - gnulib-tests += $(f128-loader-link) - endif - --- -2.9.5 - diff --git a/toolchain/glibc/patches/2.26/0006-Let-fpclassify-use-the-builtin-when-optimizing-for-s.patch b/toolchain/glibc/patches/2.26/0006-Let-fpclassify-use-the-builtin-when-optimizing-for-s.patch deleted file mode 100644 index 37807c459..000000000 --- a/toolchain/glibc/patches/2.26/0006-Let-fpclassify-use-the-builtin-when-optimizing-for-s.patch +++ /dev/null @@ -1,63 +0,0 @@ -From 33f54cf4f81a51e5c8cbfb2408edd439bdee9435 Mon Sep 17 00:00:00 2001 -From: "Gabriel F. T. Gomes" <gabriel@inconstante.eti.br> -Date: Wed, 20 Sep 2017 15:10:26 -0300 -Subject: [PATCH] Let fpclassify use the builtin when optimizing for size in - C++ mode (bug 22146) - -When optimization for size is on (-Os), fpclassify does not use the -type-generic __builtin_fpclassify builtin, instead it uses __MATH_TG. -However, when library support for float128 is available, __MATH_TG uses -__builtin_types_compatible_p, which is not available in C++ mode. - -On the other hand, libstdc++ undefines (in cmath) many macros from -math.h, including fpclassify, so that it can provide its own functions. -However, during its configure tests, libstdc++ just tests for the -availability of the macros (it does not undefine them, nor does it -provide its own functions). - -Finally, when libstdc++ is configured with optimization for size -enabled, its configure tests include math.h and get the definition of -fpclassify that uses __MATH_TG (and __builtin_types_compatible_p). -Since libstdc++ does not undefine the macros during its configure tests, -they fail. - -This patch lets fpclassify use the builtin in C++ mode, even when -optimization for size is on. This allows the configure test in -libstdc++ to work. - -Tested for powerpc64le and x86_64. - - [BZ #22146] - math/math.h: Let fpclassify use the builtin in C++ mode, even - when optimazing for size. - -(cherry picked from commit c5c4a626098ec884b8527356abdf2a4bb7b6bf27) - -[Romain rebase on glibc 2.26) -Signed-off-by: Romain Naour <romain.naour@gmail.com> ---- - math/math.h | 8 +++++++- - 1 file changed, 7 insertions(+), 1 deletion(-) - -diff --git a/math/math.h b/math/math.h -index 7c0fc6d..f9348ec 100644 ---- a/math/math.h -+++ b/math/math.h -@@ -402,7 +402,13 @@ enum - - /* Return number of classification appropriate for X. */ - # if __GNUC_PREREQ (4,4) && !defined __SUPPORT_SNAN__ \ -- && !defined __OPTIMIZE_SIZE__ -+ && (!defined __OPTIMIZE_SIZE__ || defined __cplusplus) -+ /* The check for __cplusplus allows the use of the builtin, even -+ when optimization for size is on. This is provided for -+ libstdc++, only to let its configure test work when it is built -+ with -Os. No further use of this definition of fpclassify is -+ expected in C++ mode, since libstdc++ provides its own version -+ of fpclassify in cmath (which undefines fpclassify). */ - # define fpclassify(x) __builtin_fpclassify (FP_NAN, FP_INFINITE, \ - FP_NORMAL, FP_SUBNORMAL, FP_ZERO, x) - # else --- -2.9.5 - |