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* [glibc] Use gcc __builtin_stdc_* builtins in stdbit.h if possible
@ 2024-01-31 18:19 Jakub Jelinek
0 siblings, 0 replies; only message in thread
From: Jakub Jelinek @ 2024-01-31 18:19 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=da89496337b97e6a2aaf1e81d55cf998f6db1070
commit da89496337b97e6a2aaf1e81d55cf998f6db1070
Author: Jakub Jelinek <jakub@redhat.com>
Date: Wed Jan 31 19:17:27 2024 +0100
Use gcc __builtin_stdc_* builtins in stdbit.h if possible
The following patch uses the GCC 14 __builtin_stdc_* builtins in stdbit.h
for the type-generic macros, so that when compiled with GCC 14 or later,
it supports not just 8/16/32/64-bit unsigned integers, but also 128-bit
(if target supports them) and unsigned _BitInt (any supported precision).
And so that the macros don't expand arguments multiple times and can be
evaluated in constant expressions.
The new testcase is gcc's gcc/testsuite/gcc.dg/builtin-stdc-bit-1.c
adjusted to test stdbit.h and the type-generic macros in there instead
of the builtins and adjusted to use glibc test framework rather than
gcc style tests with __builtin_abort ().
Signed-off-by: Jakub Jelinek <jakub@redhat.com>
Reviewed-by: Joseph Myers <josmyers@redhat.com>
Diff:
---
NEWS | 5 +-
manual/stdbit.texi | 8 +-
stdlib/Makefile | 1 +
stdlib/stdbit.h | 84 ++++-
stdlib/tst-stdbit-builtins.c | 778 +++++++++++++++++++++++++++++++++++++++++++
5 files changed, 860 insertions(+), 16 deletions(-)
diff --git a/NEWS b/NEWS
index ab9bf1b4c9..39a55f5767 100644
--- a/NEWS
+++ b/NEWS
@@ -9,7 +9,10 @@ Version 2.40
Major new features:
- [Add new features here]
+* The <stdbit.h> header type-generic macros have been changed when using
+ GCC 14.1 or later to use __builtin_stdc_bit_ceil etc. built-in functions
+ in order to support unsigned __int128 and/or unsigned _BitInt(N) operands
+ with arbitrary precisions when supported by the target.
Deprecated and removed features, and other changes affecting compatibility:
diff --git a/manual/stdbit.texi b/manual/stdbit.texi
index fe41c671d8..8688930f12 100644
--- a/manual/stdbit.texi
+++ b/manual/stdbit.texi
@@ -32,7 +32,13 @@ and @code{unsigned long long int}. In addition, there is a
corresponding type-generic macro (not listed below), named the same as
the functions but without any suffix such as @samp{_uc}. The
type-generic macro can only be used with an argument of an unsigned
-integer type with a width of 8, 16, 32 or 64 bits.
+integer type with a width of 8, 16, 32 or 64 bits, or when using
+a compiler with support for
+@uref{https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html@code{__builtin_stdc_bit_ceil}},
+etc.@:, built-in functions such as GCC 14.1 or later
+any unsigned integer type those built-in functions support.
+In GCC 14.1 that includes support for @code{unsigned __int128} and
+@code{unsigned _BitInt(@var{n})} if supported by the target.
@deftypefun {unsigned int} stdc_leading_zeros_uc (unsigned char @var{x})
@deftypefunx {unsigned int} stdc_leading_zeros_us (unsigned short @var{x})
diff --git a/stdlib/Makefile b/stdlib/Makefile
index d587f054d1..9898cc5d8a 100644
--- a/stdlib/Makefile
+++ b/stdlib/Makefile
@@ -308,6 +308,7 @@ tests := \
tst-setcontext10 \
tst-setcontext11 \
tst-stdbit-Wconversion \
+ tst-stdbit-builtins \
tst-stdc_bit_ceil \
tst-stdc_bit_floor \
tst-stdc_bit_width \
diff --git a/stdlib/stdbit.h b/stdlib/stdbit.h
index f334eb174d..2801590c63 100644
--- a/stdlib/stdbit.h
+++ b/stdlib/stdbit.h
@@ -64,9 +64,13 @@ extern unsigned int stdc_leading_zeros_ul (unsigned long int __x)
__extension__
extern unsigned int stdc_leading_zeros_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_leading_zeros(x) \
+#if __glibc_has_builtin (__builtin_stdc_leading_zeros)
+# define stdc_leading_zeros(x) (__builtin_stdc_leading_zeros (x))
+#else
+# define stdc_leading_zeros(x) \
(stdc_leading_zeros_ull (x) \
- (unsigned int) (8 * (sizeof (0ULL) - sizeof (x))))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline unsigned int
@@ -116,9 +120,13 @@ extern unsigned int stdc_leading_ones_ul (unsigned long int __x)
__extension__
extern unsigned int stdc_leading_ones_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_leading_ones(x) \
+#if __glibc_has_builtin (__builtin_stdc_leading_ones)
+# define stdc_leading_ones(x) (__builtin_stdc_leading_ones (x))
+#else
+# define stdc_leading_ones(x) \
(stdc_leading_ones_ull ((unsigned long long int) (x) \
<< 8 * (sizeof (0ULL) - sizeof (x))))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline unsigned int
@@ -168,11 +176,15 @@ extern unsigned int stdc_trailing_zeros_ul (unsigned long int __x)
__extension__
extern unsigned int stdc_trailing_zeros_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_trailing_zeros(x) \
+#if __glibc_has_builtin (__builtin_stdc_trailing_zeros)
+# define stdc_trailing_zeros(x) (__builtin_stdc_trailing_zeros (x))
+#else
+# define stdc_trailing_zeros(x) \
(sizeof (x) == 8 ? stdc_trailing_zeros_ull (x) \
: sizeof (x) == 4 ? stdc_trailing_zeros_ui (x) \
: sizeof (x) == 2 ? stdc_trailing_zeros_us (__pacify_uint16 (x)) \
: stdc_trailing_zeros_uc (__pacify_uint8 (x)))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_ctzll)
static __always_inline unsigned int
@@ -222,7 +234,11 @@ extern unsigned int stdc_trailing_ones_ul (unsigned long int __x)
__extension__
extern unsigned int stdc_trailing_ones_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_trailing_ones(x) (stdc_trailing_ones_ull (x))
+#if __glibc_has_builtin (__builtin_stdc_trailing_ones)
+# define stdc_trailing_ones(x) (__builtin_stdc_trailing_ones (x))
+#else
+# define stdc_trailing_ones(x) (stdc_trailing_ones_ull (x))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_ctzll)
static __always_inline unsigned int
@@ -272,11 +288,15 @@ extern unsigned int stdc_first_leading_zero_ul (unsigned long int __x)
__extension__
extern unsigned int stdc_first_leading_zero_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_first_leading_zero(x) \
+#if __glibc_has_builtin (__builtin_stdc_first_leading_zero)
+# define stdc_first_leading_zero(x) (__builtin_stdc_first_leading_zero (x))
+#else
+# define stdc_first_leading_zero(x) \
(sizeof (x) == 8 ? stdc_first_leading_zero_ull (x) \
: sizeof (x) == 4 ? stdc_first_leading_zero_ui (x) \
: sizeof (x) == 2 ? stdc_first_leading_zero_us (__pacify_uint16 (x)) \
: stdc_first_leading_zero_uc (__pacify_uint8 (x)))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline unsigned int
@@ -326,11 +346,15 @@ extern unsigned int stdc_first_leading_one_ul (unsigned long int __x)
__extension__
extern unsigned int stdc_first_leading_one_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_first_leading_one(x) \
+#if __glibc_has_builtin (__builtin_stdc_first_leading_one)
+# define stdc_first_leading_one(x) (__builtin_stdc_first_leading_one (x))
+#else
+# define stdc_first_leading_one(x) \
(sizeof (x) == 8 ? stdc_first_leading_one_ull (x) \
: sizeof (x) == 4 ? stdc_first_leading_one_ui (x) \
: sizeof (x) == 2 ? stdc_first_leading_one_us (__pacify_uint16 (x)) \
: stdc_first_leading_one_uc (__pacify_uint8 (x)))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline unsigned int
@@ -380,11 +404,15 @@ extern unsigned int stdc_first_trailing_zero_ul (unsigned long int __x)
__extension__
extern unsigned int stdc_first_trailing_zero_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_first_trailing_zero(x) \
+#if __glibc_has_builtin (__builtin_stdc_first_trailing_zero)
+# define stdc_first_trailing_zero(x) (__builtin_stdc_first_trailing_zero (x))
+#else
+# define stdc_first_trailing_zero(x) \
(sizeof (x) == 8 ? stdc_first_trailing_zero_ull (x) \
: sizeof (x) == 4 ? stdc_first_trailing_zero_ui (x) \
: sizeof (x) == 2 ? stdc_first_trailing_zero_us (__pacify_uint16 (x)) \
: stdc_first_trailing_zero_uc (__pacify_uint8 (x)))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_ctzll)
static __always_inline unsigned int
@@ -434,11 +462,15 @@ extern unsigned int stdc_first_trailing_one_ul (unsigned long int __x)
__extension__
extern unsigned int stdc_first_trailing_one_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_first_trailing_one(x) \
+#if __glibc_has_builtin (__builtin_stdc_first_trailing_one)
+# define stdc_first_trailing_one(x) (__builtin_stdc_first_trailing_one (x))
+#else
+# define stdc_first_trailing_one(x) \
(sizeof (x) == 8 ? stdc_first_trailing_one_ull (x) \
: sizeof (x) == 4 ? stdc_first_trailing_one_ui (x) \
: sizeof (x) == 2 ? stdc_first_trailing_one_us (__pacify_uint16 (x)) \
: stdc_first_trailing_one_uc (__pacify_uint8 (x)))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_ctzll)
static __always_inline unsigned int
@@ -488,9 +520,13 @@ extern unsigned int stdc_count_zeros_ul (unsigned long int __x)
__extension__
extern unsigned int stdc_count_zeros_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_count_zeros(x) \
+#if __glibc_has_builtin (__builtin_stdc_count_zeros)
+# define stdc_count_zeros(x) (__builtin_stdc_count_zeros (x))
+#else
+# define stdc_count_zeros(x) \
(stdc_count_zeros_ull (x) \
- (unsigned int) (8 * (sizeof (0ULL) - sizeof (x))))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_popcountll)
static __always_inline unsigned int
@@ -540,7 +576,11 @@ extern unsigned int stdc_count_ones_ul (unsigned long int __x)
__extension__
extern unsigned int stdc_count_ones_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_count_ones(x) (stdc_count_ones_ull (x))
+#if __glibc_has_builtin (__builtin_stdc_count_ones)
+# define stdc_count_ones(x) (__builtin_stdc_count_ones (x))
+#else
+# define stdc_count_ones(x) (stdc_count_ones_ull (x))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_popcountll)
static __always_inline unsigned int
@@ -590,10 +630,14 @@ extern bool stdc_has_single_bit_ul (unsigned long int __x)
__extension__
extern bool stdc_has_single_bit_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_has_single_bit(x) \
+#if __glibc_has_builtin (__builtin_stdc_has_single_bit)
+# define stdc_has_single_bit(x) (__builtin_stdc_has_single_bit (x))
+#else
+# define stdc_has_single_bit(x) \
((bool) (sizeof (x) <= sizeof (unsigned int) \
? stdc_has_single_bit_ui (x) \
: stdc_has_single_bit_ull (x)))
+#endif
static __always_inline bool
__hsb64_inline (uint64_t __x)
@@ -641,7 +685,11 @@ extern unsigned int stdc_bit_width_ul (unsigned long int __x)
__extension__
extern unsigned int stdc_bit_width_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_bit_width(x) (stdc_bit_width_ull (x))
+#if __glibc_has_builtin (__builtin_stdc_bit_width)
+# define stdc_bit_width(x) (__builtin_stdc_bit_width (x))
+#else
+# define stdc_bit_width(x) (stdc_bit_width_ull (x))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline unsigned int
@@ -691,7 +739,11 @@ extern unsigned long int stdc_bit_floor_ul (unsigned long int __x)
__extension__
extern unsigned long long int stdc_bit_floor_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_bit_floor(x) ((__typeof (x)) stdc_bit_floor_ull (x))
+#if __glibc_has_builtin (__builtin_stdc_bit_floor)
+# define stdc_bit_floor(x) (__builtin_stdc_bit_floor (x))
+#else
+# define stdc_bit_floor(x) ((__typeof (x)) stdc_bit_floor_ull (x))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline uint64_t
@@ -743,7 +795,11 @@ extern unsigned long int stdc_bit_ceil_ul (unsigned long int __x)
__extension__
extern unsigned long long int stdc_bit_ceil_ull (unsigned long long int __x)
__THROW __attribute_const__;
-#define stdc_bit_ceil(x) ((__typeof (x)) stdc_bit_ceil_ull (x))
+#if __glibc_has_builtin (__builtin_stdc_bit_ceil)
+# define stdc_bit_ceil(x) (__builtin_stdc_bit_ceil (x))
+#else
+# define stdc_bit_ceil(x) ((__typeof (x)) stdc_bit_ceil_ull (x))
+#endif
#if __GNUC_PREREQ (3, 4) || __glibc_has_builtin (__builtin_clzll)
static __always_inline uint64_t
diff --git a/stdlib/tst-stdbit-builtins.c b/stdlib/tst-stdbit-builtins.c
new file mode 100644
index 0000000000..536841ca8a
--- /dev/null
+++ b/stdlib/tst-stdbit-builtins.c
@@ -0,0 +1,778 @@
+/* Test <stdbit.h> type-generic macros with compiler __builtin_stdc_* support.
+ Copyright (C) 2024 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <stdbit.h>
+#include <limits.h>
+#include <support/check.h>
+
+#if __glibc_has_builtin (__builtin_stdc_leading_zeros) \
+ && __glibc_has_builtin (__builtin_stdc_leading_ones) \
+ && __glibc_has_builtin (__builtin_stdc_trailing_zeros) \
+ && __glibc_has_builtin (__builtin_stdc_trailing_ones) \
+ && __glibc_has_builtin (__builtin_stdc_first_leading_zero) \
+ && __glibc_has_builtin (__builtin_stdc_first_leading_one) \
+ && __glibc_has_builtin (__builtin_stdc_first_trailing_zero) \
+ && __glibc_has_builtin (__builtin_stdc_first_trailing_one) \
+ && __glibc_has_builtin (__builtin_stdc_count_zeros) \
+ && __glibc_has_builtin (__builtin_stdc_count_ones) \
+ && __glibc_has_builtin (__builtin_stdc_has_single_bit) \
+ && __glibc_has_builtin (__builtin_stdc_bit_width) \
+ && __glibc_has_builtin (__builtin_stdc_bit_floor) \
+ && __glibc_has_builtin (__builtin_stdc_bit_ceil)
+
+# if !defined (BITINT_MAXWIDTH) && defined (__BITINT_MAXWIDTH__)
+# define BITINT_MAXWIDTH __BITINT_MAXWIDTH__
+# endif
+
+typedef unsigned char uc;
+typedef unsigned short us;
+typedef unsigned int ui;
+typedef unsigned long int ul;
+typedef unsigned long long int ull;
+
+# define expr_has_type(e, t) _Generic (e, default : 0, t : 1)
+
+static int
+do_test (void)
+{
+ TEST_COMPARE (stdc_leading_zeros ((uc) 0), CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_leading_zeros ((uc) 0), ui), 1);
+ TEST_COMPARE (stdc_leading_zeros ((us) 0), sizeof (short) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_leading_zeros ((us) 0), ui), 1);
+ TEST_COMPARE (stdc_leading_zeros (0U), sizeof (int) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_leading_zeros (0U), ui), 1);
+ TEST_COMPARE (stdc_leading_zeros (0UL), sizeof (long int) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_leading_zeros (0UL), ui), 1);
+ TEST_COMPARE (stdc_leading_zeros (0ULL), sizeof (long long int) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_leading_zeros (0ULL), ui), 1);
+ TEST_COMPARE (stdc_leading_zeros ((uc) ~0U), 0);
+ TEST_COMPARE (stdc_leading_zeros ((us) ~0U), 0);
+ TEST_COMPARE (stdc_leading_zeros (~0U), 0);
+ TEST_COMPARE (stdc_leading_zeros (~0UL), 0);
+ TEST_COMPARE (stdc_leading_zeros (~0ULL), 0);
+ TEST_COMPARE (stdc_leading_zeros ((uc) 3), CHAR_BIT - 2);
+ TEST_COMPARE (stdc_leading_zeros ((us) 9), sizeof (short) * CHAR_BIT - 4);
+ TEST_COMPARE (stdc_leading_zeros (34U), sizeof (int) * CHAR_BIT - 6);
+ TEST_COMPARE (stdc_leading_zeros (130UL), sizeof (long int) * CHAR_BIT - 8);
+ TEST_COMPARE (stdc_leading_zeros (512ULL),
+ sizeof (long long int) * CHAR_BIT - 10);
+ TEST_COMPARE (stdc_leading_ones ((uc) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_leading_ones ((uc) 0), ui), 1);
+ TEST_COMPARE (stdc_leading_ones ((us) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_leading_ones ((us) 0), ui), 1);
+ TEST_COMPARE (stdc_leading_ones (0U), 0);
+ TEST_COMPARE (expr_has_type (stdc_leading_ones (0U), ui), 1);
+ TEST_COMPARE (stdc_leading_ones (0UL), 0);
+ TEST_COMPARE (expr_has_type (stdc_leading_ones (0UL), ui), 1);
+ TEST_COMPARE (stdc_leading_ones (0ULL), 0);
+ TEST_COMPARE (expr_has_type (stdc_leading_ones (0ULL), ui), 1);
+ TEST_COMPARE (stdc_leading_ones ((uc) ~0U), CHAR_BIT);
+ TEST_COMPARE (stdc_leading_ones ((us) ~0U), sizeof (short) * CHAR_BIT);
+ TEST_COMPARE (stdc_leading_ones (~0U), sizeof (int) * CHAR_BIT);
+ TEST_COMPARE (stdc_leading_ones (~0UL), sizeof (long int) * CHAR_BIT);
+ TEST_COMPARE (stdc_leading_ones (~0ULL), sizeof (long long int) * CHAR_BIT);
+ TEST_COMPARE (stdc_leading_ones ((uc) ~3), CHAR_BIT - 2);
+ TEST_COMPARE (stdc_leading_ones ((us) ~9), sizeof (short) * CHAR_BIT - 4);
+ TEST_COMPARE (stdc_leading_ones (~34U), sizeof (int) * CHAR_BIT - 6);
+ TEST_COMPARE (stdc_leading_ones (~130UL), sizeof (long int) * CHAR_BIT - 8);
+ TEST_COMPARE (stdc_leading_ones (~512ULL),
+ sizeof (long long int) * CHAR_BIT - 10);
+ TEST_COMPARE (stdc_trailing_zeros ((uc) 0), CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_trailing_zeros ((uc) 0), ui), 1);
+ TEST_COMPARE (stdc_trailing_zeros ((us) 0), sizeof (short) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_trailing_zeros ((us) 0), ui), 1);
+ TEST_COMPARE (stdc_trailing_zeros (0U), sizeof (int) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_trailing_zeros (0U), ui), 1);
+ TEST_COMPARE (stdc_trailing_zeros (0UL), sizeof (long int) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_trailing_zeros (0UL), ui), 1);
+ TEST_COMPARE (stdc_trailing_zeros (0ULL), sizeof (long long int) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_trailing_zeros (0ULL), ui), 1);
+ TEST_COMPARE (stdc_trailing_zeros ((uc) ~0U), 0);
+ TEST_COMPARE (stdc_trailing_zeros ((us) ~0U), 0);
+ TEST_COMPARE (stdc_trailing_zeros (~0U), 0);
+ TEST_COMPARE (stdc_trailing_zeros (~0UL), 0);
+ TEST_COMPARE (stdc_trailing_zeros (~0ULL), 0);
+ TEST_COMPARE (stdc_trailing_zeros ((uc) 2), 1);
+ TEST_COMPARE (stdc_trailing_zeros ((us) 24), 3);
+ TEST_COMPARE (stdc_trailing_zeros (32U), 5);
+ TEST_COMPARE (stdc_trailing_zeros (128UL), 7);
+ TEST_COMPARE (stdc_trailing_zeros (512ULL), 9);
+ TEST_COMPARE (stdc_trailing_ones ((uc) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_trailing_ones ((uc) 0), ui), 1);
+ TEST_COMPARE (stdc_trailing_ones ((us) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_trailing_ones ((us) 0), ui), 1);
+ TEST_COMPARE (stdc_trailing_ones (0U), 0);
+ TEST_COMPARE (expr_has_type (stdc_trailing_ones (0U), ui), 1);
+ TEST_COMPARE (stdc_trailing_ones (0UL), 0);
+ TEST_COMPARE (expr_has_type (stdc_trailing_ones (0UL), ui), 1);
+ TEST_COMPARE (stdc_trailing_ones (0ULL), 0);
+ TEST_COMPARE (expr_has_type (stdc_trailing_ones (0ULL), ui), 1);
+ TEST_COMPARE (stdc_trailing_ones ((uc) ~0U), CHAR_BIT);
+ TEST_COMPARE (stdc_trailing_ones ((us) ~0U), sizeof (short) * CHAR_BIT);
+ TEST_COMPARE (stdc_trailing_ones (~0U), sizeof (int) * CHAR_BIT);
+ TEST_COMPARE (stdc_trailing_ones (~0UL), sizeof (long int) * CHAR_BIT);
+ TEST_COMPARE (stdc_trailing_ones (~0ULL), sizeof (long long int) * CHAR_BIT);
+ TEST_COMPARE (stdc_trailing_ones ((uc) 5), 1);
+ TEST_COMPARE (stdc_trailing_ones ((us) 15), 4);
+ TEST_COMPARE (stdc_trailing_ones (127U), 7);
+ TEST_COMPARE (stdc_trailing_ones (511UL), 9);
+ TEST_COMPARE (stdc_trailing_ones (~0ULL >> 2),
+ sizeof (long long int) * CHAR_BIT - 2);
+ TEST_COMPARE (stdc_first_leading_zero ((uc) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_zero ((uc) 0), ui), 1);
+ TEST_COMPARE (stdc_first_leading_zero ((us) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_zero ((us) 0), ui), 1);
+ TEST_COMPARE (stdc_first_leading_zero (0U), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_zero (0U), ui), 1);
+ TEST_COMPARE (stdc_first_leading_zero (0UL), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_zero (0UL), ui), 1);
+ TEST_COMPARE (stdc_first_leading_zero (0ULL), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_zero (0ULL), ui), 1);
+ TEST_COMPARE (stdc_first_leading_zero ((uc) ~0U), 0);
+ TEST_COMPARE (stdc_first_leading_zero ((us) ~0U), 0);
+ TEST_COMPARE (stdc_first_leading_zero (~0U), 0);
+ TEST_COMPARE (stdc_first_leading_zero (~0UL), 0);
+ TEST_COMPARE (stdc_first_leading_zero (~0ULL), 0);
+ TEST_COMPARE (stdc_first_leading_zero ((uc) ~3U), CHAR_BIT - 1);
+ TEST_COMPARE (stdc_first_leading_zero ((us) ~15U),
+ sizeof (short) * CHAR_BIT - 3);
+ TEST_COMPARE (stdc_first_leading_zero (~63U), sizeof (int) * CHAR_BIT - 5);
+ TEST_COMPARE (stdc_first_leading_zero (~255UL),
+ sizeof (long int) * CHAR_BIT - 7);
+ TEST_COMPARE (stdc_first_leading_zero (~1023ULL),
+ sizeof (long long int) * CHAR_BIT - 9);
+ TEST_COMPARE (stdc_first_leading_one ((uc) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_one ((uc) 0), ui), 1);
+ TEST_COMPARE (stdc_first_leading_one ((us) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_one ((us) 0), ui), 1);
+ TEST_COMPARE (stdc_first_leading_one (0U), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_one (0U), ui), 1);
+ TEST_COMPARE (stdc_first_leading_one (0UL), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_one (0UL), ui), 1);
+ TEST_COMPARE (stdc_first_leading_one (0ULL), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_one (0ULL), ui), 1);
+ TEST_COMPARE (stdc_first_leading_one ((uc) ~0U), 1);
+ TEST_COMPARE (stdc_first_leading_one ((us) ~0U), 1);
+ TEST_COMPARE (stdc_first_leading_one (~0U), 1);
+ TEST_COMPARE (stdc_first_leading_one (~0UL), 1);
+ TEST_COMPARE (stdc_first_leading_one (~0ULL), 1);
+ TEST_COMPARE (stdc_first_leading_one ((uc) 3), CHAR_BIT - 1);
+ TEST_COMPARE (stdc_first_leading_one ((us) 9),
+ sizeof (short) * CHAR_BIT - 3);
+ TEST_COMPARE (stdc_first_leading_one (34U), sizeof (int) * CHAR_BIT - 5);
+ TEST_COMPARE (stdc_first_leading_one (130UL),
+ sizeof (long int) * CHAR_BIT - 7);
+ TEST_COMPARE (stdc_first_leading_one (512ULL),
+ sizeof (long long int) * CHAR_BIT - 9);
+ TEST_COMPARE (stdc_first_trailing_zero ((uc) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_zero ((uc) 0), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_zero ((us) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_zero ((us) 0), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_zero (0U), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_zero (0U), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_zero (0UL), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_zero (0UL), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_zero (0ULL), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_zero (0ULL), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_zero ((uc) ~0U), 0);
+ TEST_COMPARE (stdc_first_trailing_zero ((us) ~0U), 0);
+ TEST_COMPARE (stdc_first_trailing_zero (~0U), 0);
+ TEST_COMPARE (stdc_first_trailing_zero (~0UL), 0);
+ TEST_COMPARE (stdc_first_trailing_zero (~0ULL), 0);
+ TEST_COMPARE (stdc_first_trailing_zero ((uc) 2), 1);
+ TEST_COMPARE (stdc_first_trailing_zero ((us) 15), 5);
+ TEST_COMPARE (stdc_first_trailing_zero (63U), 7);
+ TEST_COMPARE (stdc_first_trailing_zero (128UL), 1);
+ TEST_COMPARE (stdc_first_trailing_zero (511ULL), 10);
+ TEST_COMPARE (stdc_first_trailing_one ((uc) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_one ((uc) 0), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_one ((us) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_one ((us) 0), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_one (0U), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_one (0U), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_one (0UL), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_one (0UL), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_one (0ULL), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_one (0ULL), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_one ((uc) ~0U), 1);
+ TEST_COMPARE (stdc_first_trailing_one ((us) ~0U), 1);
+ TEST_COMPARE (stdc_first_trailing_one (~0U), 1);
+ TEST_COMPARE (stdc_first_trailing_one (~0UL), 1);
+ TEST_COMPARE (stdc_first_trailing_one (~0ULL), 1);
+ TEST_COMPARE (stdc_first_trailing_one ((uc) 4), 3);
+ TEST_COMPARE (stdc_first_trailing_one ((us) 96), 6);
+ TEST_COMPARE (stdc_first_trailing_one (127U), 1);
+ TEST_COMPARE (stdc_first_trailing_one (511UL), 1);
+ TEST_COMPARE (stdc_first_trailing_one (~0ULL << 12), 13);
+ TEST_COMPARE (stdc_count_zeros ((uc) 0), CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_count_zeros ((uc) 0), ui), 1);
+ TEST_COMPARE (stdc_count_zeros ((us) 0), sizeof (short) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_count_zeros ((us) 0), ui), 1);
+ TEST_COMPARE (stdc_count_zeros (0U), sizeof (int) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_count_zeros (0U), ui), 1);
+ TEST_COMPARE (stdc_count_zeros (0UL), sizeof (long int) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_count_zeros (0UL), ui), 1);
+ TEST_COMPARE (stdc_count_zeros (0ULL), sizeof (long long int) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_count_zeros (0ULL), ui), 1);
+ TEST_COMPARE (stdc_count_zeros ((uc) ~0U), 0);
+ TEST_COMPARE (stdc_count_zeros ((us) ~0U), 0);
+ TEST_COMPARE (stdc_count_zeros (~0U), 0);
+ TEST_COMPARE (stdc_count_zeros (~0UL), 0);
+ TEST_COMPARE (stdc_count_zeros (~0ULL), 0);
+ TEST_COMPARE (stdc_count_zeros ((uc) 1U), CHAR_BIT - 1);
+ TEST_COMPARE (stdc_count_zeros ((us) 42), sizeof (short) * CHAR_BIT - 3);
+ TEST_COMPARE (stdc_count_zeros (291U), sizeof (int) * CHAR_BIT - 4);
+ TEST_COMPARE (stdc_count_zeros (~1315UL), 5);
+ TEST_COMPARE (stdc_count_zeros (3363ULL),
+ sizeof (long long int) * CHAR_BIT - 6);
+ TEST_COMPARE (stdc_count_ones ((uc) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_count_ones ((uc) 0), ui), 1);
+ TEST_COMPARE (stdc_count_ones ((us) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_count_ones ((us) 0), ui), 1);
+ TEST_COMPARE (stdc_count_ones (0U), 0);
+ TEST_COMPARE (expr_has_type (stdc_count_ones (0U), ui), 1);
+ TEST_COMPARE (stdc_count_ones (0UL), 0);
+ TEST_COMPARE (expr_has_type (stdc_count_ones (0UL), ui), 1);
+ TEST_COMPARE (stdc_count_ones (0ULL), 0);
+ TEST_COMPARE (expr_has_type (stdc_count_ones (0ULL), ui), 1);
+ TEST_COMPARE (stdc_count_ones ((uc) ~0U), CHAR_BIT);
+ TEST_COMPARE (stdc_count_ones ((us) ~0U), sizeof (short) * CHAR_BIT);
+ TEST_COMPARE (stdc_count_ones (~0U), sizeof (int) * CHAR_BIT);
+ TEST_COMPARE (stdc_count_ones (~0UL), sizeof (long int) * CHAR_BIT);
+ TEST_COMPARE (stdc_count_ones (~0ULL), sizeof (long long int) * CHAR_BIT);
+ TEST_COMPARE (stdc_count_ones ((uc) ~1U), CHAR_BIT - 1);
+ TEST_COMPARE (stdc_count_ones ((us) ~42), sizeof (short) * CHAR_BIT - 3);
+ TEST_COMPARE (stdc_count_ones (~291U), sizeof (int) * CHAR_BIT - 4);
+ TEST_COMPARE (stdc_count_ones (1315UL), 5);
+ TEST_COMPARE (stdc_count_ones (~3363ULL),
+ sizeof (long long int) * CHAR_BIT - 6);
+ TEST_COMPARE (stdc_has_single_bit ((uc) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_has_single_bit ((uc) 0), _Bool), 1);
+ TEST_COMPARE (stdc_has_single_bit ((us) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_has_single_bit ((us) 0), _Bool), 1);
+ TEST_COMPARE (stdc_has_single_bit (0U), 0);
+ TEST_COMPARE (expr_has_type (stdc_has_single_bit (0U), _Bool), 1);
+ TEST_COMPARE (stdc_has_single_bit (0UL), 0);
+ TEST_COMPARE (expr_has_type (stdc_has_single_bit (0UL), _Bool), 1);
+ TEST_COMPARE (stdc_has_single_bit (0ULL), 0);
+ TEST_COMPARE (expr_has_type (stdc_has_single_bit (0ULL), _Bool), 1);
+ TEST_COMPARE (stdc_has_single_bit ((uc) 2), 1);
+ TEST_COMPARE (stdc_has_single_bit ((us) 8), 1);
+ TEST_COMPARE (stdc_has_single_bit (32U), 1);
+ TEST_COMPARE (stdc_has_single_bit (128UL), 1);
+ TEST_COMPARE (stdc_has_single_bit (512ULL), 1);
+ TEST_COMPARE (stdc_has_single_bit ((uc) 7), 0);
+ TEST_COMPARE (stdc_has_single_bit ((us) 96), 0);
+ TEST_COMPARE (stdc_has_single_bit (513U), 0);
+ TEST_COMPARE (stdc_has_single_bit (1022UL), 0);
+ TEST_COMPARE (stdc_has_single_bit (12ULL), 0);
+ TEST_COMPARE (stdc_bit_width ((uc) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_width ((uc) 0), ui), 1);
+ TEST_COMPARE (stdc_bit_width ((us) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_width ((us) 0), ui), 1);
+ TEST_COMPARE (stdc_bit_width (0U), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_width (0U), ui), 1);
+ TEST_COMPARE (stdc_bit_width (0UL), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_width (0UL), ui), 1);
+ TEST_COMPARE (stdc_bit_width (0ULL), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_width (0ULL), ui), 1);
+ TEST_COMPARE (stdc_bit_width ((uc) ~0U), CHAR_BIT);
+ TEST_COMPARE (stdc_bit_width ((us) ~0U), sizeof (short) * CHAR_BIT);
+ TEST_COMPARE (stdc_bit_width (~0U), sizeof (int) * CHAR_BIT);
+ TEST_COMPARE (stdc_bit_width (~0UL), sizeof (long int) * CHAR_BIT);
+ TEST_COMPARE (stdc_bit_width (~0ULL), sizeof (long long int) * CHAR_BIT);
+ TEST_COMPARE (stdc_bit_width ((uc) ((uc) ~0U >> 1)), CHAR_BIT - 1);
+ TEST_COMPARE (stdc_bit_width ((uc) 6), 3);
+ TEST_COMPARE (stdc_bit_width ((us) 12U), 4);
+ TEST_COMPARE (stdc_bit_width ((us) ((us) ~0U >> 5)),
+ sizeof (short) * CHAR_BIT - 5);
+ TEST_COMPARE (stdc_bit_width (137U), 8);
+ TEST_COMPARE (stdc_bit_width (269U), 9);
+ TEST_COMPARE (stdc_bit_width (39UL), 6);
+ TEST_COMPARE (stdc_bit_width (~0UL >> 2), sizeof (long int) * CHAR_BIT - 2);
+ TEST_COMPARE (stdc_bit_width (1023ULL), 10);
+ TEST_COMPARE (stdc_bit_width (1024ULL), 11);
+ TEST_COMPARE (stdc_bit_floor ((uc) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_floor ((uc) 0), uc), 1);
+ TEST_COMPARE (stdc_bit_floor ((us) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_floor ((us) 0), us), 1);
+ TEST_COMPARE (stdc_bit_floor (0U), 0U);
+ TEST_COMPARE (expr_has_type (stdc_bit_floor (0U), ui), 1);
+ TEST_COMPARE (stdc_bit_floor (0UL), 0UL);
+ TEST_COMPARE (expr_has_type (stdc_bit_floor (0UL), ul), 1);
+ TEST_COMPARE (stdc_bit_floor (0ULL), 0ULL);
+ TEST_COMPARE (expr_has_type (stdc_bit_floor (0ULL), ull), 1);
+ TEST_COMPARE (stdc_bit_floor ((uc) ~0U), (1U << (CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_floor ((us) ~0U),
+ (1U << (sizeof (short) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_floor (~0U), (1U << (sizeof (int) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_floor (~0UL),
+ (1UL << (sizeof (long int) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_floor (~0ULL),
+ (1ULL << (sizeof (long long int) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_floor ((uc) 4), 4);
+ TEST_COMPARE (stdc_bit_floor ((uc) 7), 4);
+ TEST_COMPARE (stdc_bit_floor ((us) 8U), 8);
+ TEST_COMPARE (stdc_bit_floor ((us) 31U), 16);
+ TEST_COMPARE (stdc_bit_floor (137U), 128U);
+ TEST_COMPARE (stdc_bit_floor (269U), 256U);
+ TEST_COMPARE (stdc_bit_floor (511UL), 256UL);
+ TEST_COMPARE (stdc_bit_floor (512UL), 512UL);
+ TEST_COMPARE (stdc_bit_floor (513UL), 512ULL);
+ TEST_COMPARE (stdc_bit_floor (1024ULL), 1024ULL);
+ TEST_COMPARE (stdc_bit_ceil ((uc) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_bit_ceil ((uc) 0), uc), 1);
+ TEST_COMPARE (stdc_bit_ceil ((us) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_bit_ceil ((us) 0), us), 1);
+ TEST_COMPARE (stdc_bit_ceil (0U), 1U);
+ TEST_COMPARE (expr_has_type (stdc_bit_ceil (0U), ui), 1);
+ TEST_COMPARE (stdc_bit_ceil (0UL), 1UL);
+ TEST_COMPARE (expr_has_type (stdc_bit_ceil (0UL), ul), 1);
+ TEST_COMPARE (stdc_bit_ceil (0ULL), 1ULL);
+ TEST_COMPARE (expr_has_type (stdc_bit_ceil (0ULL), ull), 1);
+ TEST_COMPARE (stdc_bit_ceil ((uc) ~0U), 0);
+ TEST_COMPARE (stdc_bit_ceil ((us) ~0U), 0);
+ TEST_COMPARE (stdc_bit_ceil (~0U), 0U);
+ TEST_COMPARE (stdc_bit_ceil (~0UL), 0UL);
+ TEST_COMPARE (stdc_bit_ceil (~0ULL), 0ULL);
+ TEST_COMPARE (stdc_bit_ceil ((uc) ((uc) ~0U >> 1)), (1U << (CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_ceil ((uc) ((uc) ~0U >> 1)), (1U << (CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_ceil ((us) ((us) ~0U >> 1)),
+ (1U << (sizeof (short) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_ceil ((us) ((us) ~0U >> 1)),
+ (1U << (sizeof (short) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_ceil (~0U >> 1),
+ (1U << (sizeof (int) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_ceil (1U << (sizeof (int) * CHAR_BIT - 1)),
+ (1U << (sizeof (int) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_ceil (~0UL >> 1),
+ (1UL << (sizeof (long int) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_ceil (~0UL >> 1),
+ (1UL << (sizeof (long int) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_ceil (1ULL
+ << (sizeof (long long int) * CHAR_BIT - 1)),
+ (1ULL << (sizeof (long long int) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_ceil (~0ULL >> 1),
+ (1ULL << (sizeof (long long int) * CHAR_BIT - 1)));
+ TEST_COMPARE (stdc_bit_ceil ((uc) 1), 1);
+ TEST_COMPARE (stdc_bit_ceil ((uc) 2), 2);
+ TEST_COMPARE (stdc_bit_ceil ((us) 3U), 4);
+ TEST_COMPARE (stdc_bit_ceil ((us) 4U), 4);
+ TEST_COMPARE (stdc_bit_ceil (5U), 8U);
+ TEST_COMPARE (stdc_bit_ceil (269U), 512U);
+ TEST_COMPARE (stdc_bit_ceil (511UL), 512UL);
+ TEST_COMPARE (stdc_bit_ceil (512UL), 512UL);
+ TEST_COMPARE (stdc_bit_ceil (513ULL), 1024ULL);
+ TEST_COMPARE (stdc_bit_ceil (1025ULL), 2048ULL);
+# ifdef __SIZEOF_INT128__
+ TEST_COMPARE (stdc_leading_zeros ((unsigned __int128) 0),
+ sizeof (__int128) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_leading_zeros ((unsigned __int128) 0), ui),
+ 1);
+ TEST_COMPARE (stdc_leading_zeros (~(unsigned __int128) 0), 0);
+ TEST_COMPARE (stdc_leading_ones ((unsigned __int128) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_leading_ones ((unsigned __int128) 0), ui),
+ 1);
+ TEST_COMPARE (stdc_leading_ones (~(unsigned __int128) 0),
+ sizeof (__int128) * CHAR_BIT);
+ TEST_COMPARE (stdc_trailing_zeros ((unsigned __int128) 0),
+ sizeof (__int128) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_trailing_zeros ((unsigned __int128) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_trailing_zeros (~(unsigned __int128) 0), 0);
+ TEST_COMPARE (stdc_trailing_ones ((unsigned __int128) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_trailing_ones ((unsigned __int128) 0), ui),
+ 1);
+ TEST_COMPARE (stdc_trailing_ones (~(unsigned __int128) 0),
+ sizeof (__int128) * CHAR_BIT);
+ TEST_COMPARE (stdc_first_leading_zero ((unsigned __int128) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_zero ((unsigned __int128) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_first_leading_zero (~(unsigned __int128) 0), 0);
+ TEST_COMPARE (stdc_first_leading_one ((unsigned __int128) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_one ((unsigned __int128) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_first_leading_one (~(unsigned __int128) 0), 1);
+ TEST_COMPARE (stdc_first_trailing_zero ((unsigned __int128) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_zero ((unsigned __int128)
+ 0), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_zero (~(unsigned __int128) 0), 0);
+ TEST_COMPARE (stdc_first_trailing_one ((unsigned __int128) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_one ((unsigned __int128) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_first_trailing_one (~(unsigned __int128) 0), 1);
+ TEST_COMPARE (stdc_count_zeros ((unsigned __int128) 0),
+ sizeof (__int128) * CHAR_BIT);
+ TEST_COMPARE (expr_has_type (stdc_count_zeros ((unsigned __int128) 0), ui),
+ 1);
+ TEST_COMPARE (stdc_count_zeros (~(unsigned __int128) 0), 0);
+ TEST_COMPARE (stdc_count_ones ((unsigned __int128) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_count_ones ((unsigned __int128) 0), ui),
+ 1);
+ TEST_COMPARE (stdc_count_ones (~(unsigned __int128) 0),
+ sizeof (__int128) * CHAR_BIT);
+ TEST_COMPARE (stdc_has_single_bit ((unsigned __int128) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_has_single_bit ((unsigned __int128) 0),
+ _Bool), 1);
+ TEST_COMPARE (stdc_has_single_bit (~(unsigned __int128) 0), 0);
+ TEST_COMPARE (stdc_bit_width ((unsigned __int128) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_width ((unsigned __int128) 0), ui), 1);
+ TEST_COMPARE (stdc_bit_width (~(unsigned __int128) 0),
+ sizeof (__int128) * CHAR_BIT);
+ TEST_COMPARE (stdc_bit_floor ((unsigned __int128) 0) != 0, 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_floor ((unsigned __int128) 0),
+ unsigned __int128), 1);
+ TEST_COMPARE (stdc_bit_floor (~(unsigned __int128) 0)
+ != ((unsigned __int128) 1) << (sizeof (__int128)
+ * CHAR_BIT - 1), 0);
+ TEST_COMPARE (stdc_bit_ceil ((unsigned __int128) 0) != 1, 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_ceil ((unsigned __int128) 0),
+ unsigned __int128), 1);
+ TEST_COMPARE (stdc_bit_ceil ((unsigned __int128) 1) != 1, 0);
+ TEST_COMPARE (stdc_bit_ceil ((~(unsigned __int128) 0) >> 1)
+ != ((unsigned __int128) 1) << (sizeof (__int128)
+ * CHAR_BIT - 1), 0);
+ TEST_COMPARE (stdc_bit_ceil (~(unsigned __int128) 0) != 0, 0);
+# endif
+ uc a = 0;
+ TEST_COMPARE (stdc_bit_width (a++), 0);
+ TEST_COMPARE (a, 1);
+ ull b = 0;
+ TEST_COMPARE (stdc_bit_width (b++), 0);
+ TEST_COMPARE (b, 1);
+ TEST_COMPARE (stdc_bit_floor (a++), 1);
+ TEST_COMPARE (a, 2);
+ TEST_COMPARE (stdc_bit_floor (b++), 1);
+ TEST_COMPARE (b, 2);
+ TEST_COMPARE (stdc_bit_ceil (a++), 2);
+ TEST_COMPARE (a, 3);
+ TEST_COMPARE (stdc_bit_ceil (b++), 2);
+ TEST_COMPARE (b, 3);
+ TEST_COMPARE (stdc_leading_zeros (a++), CHAR_BIT - 2);
+ TEST_COMPARE (a, 4);
+ TEST_COMPARE (stdc_leading_zeros (b++),
+ sizeof (long long int) * CHAR_BIT - 2);
+ TEST_COMPARE (b, 4);
+ TEST_COMPARE (stdc_leading_ones (a++), 0);
+ TEST_COMPARE (a, 5);
+ TEST_COMPARE (stdc_leading_ones (b++), 0);
+ TEST_COMPARE (b, 5);
+ TEST_COMPARE (stdc_trailing_zeros (a++), 0);
+ TEST_COMPARE (a, 6);
+ TEST_COMPARE (stdc_trailing_zeros (b++), 0);
+ TEST_COMPARE (b, 6);
+ TEST_COMPARE (stdc_trailing_ones (a++), 0);
+ TEST_COMPARE (a, 7);
+ TEST_COMPARE (stdc_trailing_ones (b++), 0);
+ TEST_COMPARE (b, 7);
+ TEST_COMPARE (stdc_first_leading_zero (a++), 1);
+ TEST_COMPARE (a, 8);
+ TEST_COMPARE (stdc_first_leading_zero (b++), 1);
+ TEST_COMPARE (b, 8);
+ TEST_COMPARE (stdc_first_leading_one (a++), CHAR_BIT - 3);
+ TEST_COMPARE (a, 9);
+ TEST_COMPARE (stdc_first_leading_one (b++),
+ sizeof (long long int) * CHAR_BIT - 3);
+ TEST_COMPARE (b, 9);
+ TEST_COMPARE (stdc_first_trailing_zero (a++), 2);
+ TEST_COMPARE (a, 10);
+ TEST_COMPARE (stdc_first_trailing_zero (b++), 2);
+ TEST_COMPARE (b, 10);
+ TEST_COMPARE (stdc_first_trailing_one (a++), 2);
+ TEST_COMPARE (a, 11);
+ TEST_COMPARE (stdc_first_trailing_one (b++), 2);
+ TEST_COMPARE (b, 11);
+ TEST_COMPARE (stdc_count_zeros (a++), CHAR_BIT - 3);
+ TEST_COMPARE (a, 12);
+ TEST_COMPARE (stdc_count_zeros (b++),
+ sizeof (long long int) * CHAR_BIT - 3);
+ TEST_COMPARE (b, 12);
+ TEST_COMPARE (stdc_count_ones (a++), 2);
+ TEST_COMPARE (a, 13);
+ TEST_COMPARE (stdc_count_ones (b++), 2);
+ TEST_COMPARE (b, 13);
+ TEST_COMPARE (stdc_has_single_bit (a++), 0);
+ TEST_COMPARE (a, 14);
+ TEST_COMPARE (stdc_has_single_bit (b++), 0);
+ TEST_COMPARE (b, 14);
+# ifdef BITINT_MAXWIDTH
+# if BITINT_MAXWIDTH >= 64
+ TEST_COMPARE (stdc_leading_zeros (0uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_leading_zeros (0uwb), ui), 1);
+ TEST_COMPARE (stdc_leading_zeros (1uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_leading_zeros (1uwb), ui), 1);
+ TEST_COMPARE (stdc_leading_ones (0uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_leading_ones (0uwb), ui), 1);
+ TEST_COMPARE (stdc_leading_ones (1uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_leading_ones (1uwb), ui), 1);
+ TEST_COMPARE (stdc_trailing_zeros (0uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_trailing_zeros (0uwb), ui), 1);
+ TEST_COMPARE (stdc_trailing_zeros (1uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_trailing_zeros (1uwb), ui), 1);
+ TEST_COMPARE (stdc_trailing_ones (0uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_trailing_ones (0uwb), ui), 1);
+ TEST_COMPARE (stdc_trailing_ones (1uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_trailing_ones (1uwb), ui), 1);
+ TEST_COMPARE (stdc_first_leading_zero (0uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_zero (0uwb), ui), 1);
+ TEST_COMPARE (stdc_first_leading_zero (1uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_zero (1uwb), ui), 1);
+ TEST_COMPARE (stdc_first_leading_one (0uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_one (0uwb), ui), 1);
+ TEST_COMPARE (stdc_first_leading_one (1uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_one (1uwb), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_zero (0uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_zero (0uwb), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_zero (1uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_zero (1uwb), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_one (0uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_one (0uwb), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_one (1uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_one (1uwb), ui), 1);
+ TEST_COMPARE (stdc_count_zeros (0uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_count_zeros (0uwb), ui), 1);
+ TEST_COMPARE (stdc_count_zeros (1uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_count_zeros (1uwb), ui), 1);
+ TEST_COMPARE (stdc_count_ones (0uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_count_ones (0uwb), ui), 1);
+ TEST_COMPARE (stdc_count_ones (1uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_count_ones (1uwb), ui), 1);
+ TEST_COMPARE (stdc_has_single_bit (0uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_has_single_bit (0uwb), _Bool), 1);
+ TEST_COMPARE (stdc_has_single_bit (1uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_has_single_bit (1uwb), _Bool), 1);
+ TEST_COMPARE (stdc_bit_width (0uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_width (0uwb), ui), 1);
+ TEST_COMPARE (stdc_bit_width (1uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_bit_width (1uwb), ui), 1);
+ TEST_COMPARE (stdc_bit_floor (0uwb), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_floor (0uwb), unsigned _BitInt(1)), 1);
+ TEST_COMPARE (stdc_bit_floor (1uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_bit_floor (1uwb), unsigned _BitInt(1)), 1);
+ TEST_COMPARE (stdc_bit_ceil (0uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_bit_ceil (0uwb), unsigned _BitInt(1)), 1);
+ TEST_COMPARE (stdc_bit_ceil (1uwb), 1);
+ TEST_COMPARE (expr_has_type (stdc_bit_ceil (1uwb), unsigned _BitInt(1)), 1);
+ unsigned _BitInt(1) c = 0;
+ TEST_COMPARE (stdc_bit_floor (c++), 0);
+ TEST_COMPARE (c, 1);
+ TEST_COMPARE (stdc_bit_floor (c++), 1);
+ TEST_COMPARE (c, 0);
+ TEST_COMPARE (stdc_bit_ceil (c++), 1);
+ TEST_COMPARE (c, 1);
+ TEST_COMPARE (stdc_bit_ceil (c++), 1);
+ TEST_COMPARE (c, 0);
+# endif
+# if BITINT_MAXWIDTH >= 512
+ TEST_COMPARE (stdc_leading_zeros ((unsigned _BitInt(512)) 0), 512);
+ TEST_COMPARE (expr_has_type (stdc_leading_zeros ((unsigned _BitInt(512)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_leading_zeros ((unsigned _BitInt(373)) 0), 373);
+ TEST_COMPARE (expr_has_type (stdc_leading_zeros ((unsigned _BitInt(373)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_leading_zeros (~(unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (stdc_leading_zeros (~(unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (stdc_leading_zeros ((unsigned _BitInt(512)) 275), 512 - 9);
+ TEST_COMPARE (stdc_leading_zeros ((unsigned _BitInt(373)) 512), 373 - 10);
+ TEST_COMPARE (stdc_leading_ones ((unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_leading_ones ((unsigned _BitInt(512)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_leading_ones ((unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_leading_ones ((unsigned _BitInt(373)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_leading_ones (~(unsigned _BitInt(512)) 0), 512);
+ TEST_COMPARE (stdc_leading_ones (~(unsigned _BitInt(373)) 0), 373);
+ TEST_COMPARE (stdc_leading_ones (~(unsigned _BitInt(512)) 275), 512 - 9);
+ TEST_COMPARE (stdc_leading_ones (~(unsigned _BitInt(373)) 512), 373 - 10);
+ TEST_COMPARE (stdc_trailing_zeros ((unsigned _BitInt(512)) 0), 512);
+ TEST_COMPARE (expr_has_type (stdc_trailing_zeros ((unsigned _BitInt(512)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_trailing_zeros ((unsigned _BitInt(373)) 0), 373);
+ TEST_COMPARE (expr_has_type (stdc_trailing_zeros ((unsigned _BitInt(373)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_trailing_zeros (~(unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (stdc_trailing_zeros (~(unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (stdc_trailing_zeros ((unsigned _BitInt(512)) 256), 8);
+ TEST_COMPARE (stdc_trailing_zeros ((unsigned _BitInt(373)) 512), 9);
+ TEST_COMPARE (stdc_trailing_ones ((unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_trailing_ones ((unsigned _BitInt(512)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_trailing_ones ((unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_trailing_ones ((unsigned _BitInt(373)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_trailing_ones (~(unsigned _BitInt(512)) 0), 512);
+ TEST_COMPARE (stdc_trailing_ones (~(unsigned _BitInt(373)) 0), 373);
+ TEST_COMPARE (stdc_trailing_ones ((unsigned _BitInt(512)) 255), 8);
+ TEST_COMPARE (stdc_trailing_ones ((~(unsigned _BitInt(373)) 0) >> 2),
+ 373 - 2);
+ TEST_COMPARE (stdc_first_leading_zero ((unsigned _BitInt(512)) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_zero ((unsigned _BitInt(512))
+ 0), ui), 1);
+ TEST_COMPARE (stdc_first_leading_zero ((unsigned _BitInt(373)) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_zero ((unsigned _BitInt(373))
+ 0), ui), 1);
+ TEST_COMPARE (stdc_first_leading_zero (~(unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (stdc_first_leading_zero (~(unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (stdc_first_leading_zero (~(unsigned _BitInt(512)) 511),
+ 512 - 8);
+ TEST_COMPARE (stdc_first_leading_zero (~(unsigned _BitInt(373)) 1023),
+ 373 - 9);
+ TEST_COMPARE (stdc_first_leading_one ((unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_one ((unsigned _BitInt(512))
+ 0), ui), 1);
+ TEST_COMPARE (stdc_first_leading_one ((unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_leading_one ((unsigned _BitInt(373))
+ 0), ui), 1);
+ TEST_COMPARE (stdc_first_leading_one (~(unsigned _BitInt(512)) 0), 1);
+ TEST_COMPARE (stdc_first_leading_one (~(unsigned _BitInt(373)) 0), 1);
+ TEST_COMPARE (stdc_first_leading_one ((unsigned _BitInt(512)) 275), 512 - 8);
+ TEST_COMPARE (stdc_first_leading_one ((unsigned _BitInt(373)) 512), 373 - 9);
+ TEST_COMPARE (stdc_first_trailing_zero ((unsigned _BitInt(512)) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_zero ((unsigned
+ _BitInt(512)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_first_trailing_zero ((unsigned _BitInt(373)) 0), 1);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_zero ((unsigned
+ _BitInt(373)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_first_trailing_zero (~(unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (stdc_first_trailing_zero (~(unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (stdc_first_trailing_zero ((unsigned _BitInt(512)) 255), 9);
+ TEST_COMPARE (stdc_first_trailing_zero ((unsigned _BitInt(373)) 511), 10);
+ TEST_COMPARE (stdc_first_trailing_one ((unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_one ((unsigned _BitInt(512))
+ 0), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_one ((unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_first_trailing_one ((unsigned _BitInt(373))
+ 0), ui), 1);
+ TEST_COMPARE (stdc_first_trailing_one (~(unsigned _BitInt(512)) 0), 1);
+ TEST_COMPARE (stdc_first_trailing_one (~(unsigned _BitInt(373)) 0), 1);
+ TEST_COMPARE (stdc_first_trailing_one (((unsigned _BitInt(512)) 255) << 175),
+ 176);
+ TEST_COMPARE (stdc_first_trailing_one ((~(unsigned _BitInt(373)) 0) << 311),
+ 312);
+ TEST_COMPARE (stdc_count_zeros ((unsigned _BitInt(512)) 0), 512);
+ TEST_COMPARE (expr_has_type (stdc_count_zeros ((unsigned _BitInt(512)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_count_zeros ((unsigned _BitInt(373)) 0), 373);
+ TEST_COMPARE (expr_has_type (stdc_count_zeros ((unsigned _BitInt(373)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_count_zeros (~(unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (stdc_count_zeros (~(unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (stdc_count_zeros ((unsigned _BitInt(512)) 1315), 512 - 5);
+ TEST_COMPARE (stdc_count_zeros ((unsigned _BitInt(373)) 3363), 373 - 6);
+ TEST_COMPARE (stdc_count_ones ((unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_count_ones ((unsigned _BitInt(512)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_count_ones ((unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_count_ones ((unsigned _BitInt(373)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_count_ones (~(unsigned _BitInt(512)) 0), 512);
+ TEST_COMPARE (stdc_count_ones (~(unsigned _BitInt(373)) 0), 373);
+ TEST_COMPARE (stdc_count_ones (~(unsigned _BitInt(512)) 1315), 512 - 5);
+ TEST_COMPARE (stdc_count_ones (~(unsigned _BitInt(373)) 3363), 373 - 6);
+ TEST_COMPARE (stdc_has_single_bit ((unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_has_single_bit ((unsigned _BitInt(512)) 0),
+ _Bool), 1);
+ TEST_COMPARE (stdc_has_single_bit ((unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_has_single_bit ((unsigned _BitInt(373)) 0),
+ _Bool), 1);
+ TEST_COMPARE (stdc_has_single_bit (~(unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (stdc_has_single_bit (~(unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (stdc_has_single_bit (((unsigned _BitInt(512)) 1022) << 279),
+ 0);
+ TEST_COMPARE (stdc_has_single_bit (((unsigned _BitInt(373)) 12) << 305), 0);
+ TEST_COMPARE (stdc_bit_width ((unsigned _BitInt(512)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_width ((unsigned _BitInt(512)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_bit_width ((unsigned _BitInt(373)) 0), 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_width ((unsigned _BitInt(373)) 0),
+ ui), 1);
+ TEST_COMPARE (stdc_bit_width (~(unsigned _BitInt(512)) 0), 512);
+ TEST_COMPARE (stdc_bit_width (~(unsigned _BitInt(373)) 0), 373);
+ TEST_COMPARE (stdc_bit_width (((unsigned _BitInt(512)) 1023) << 405),
+ 405 + 10);
+ TEST_COMPARE (stdc_bit_width (((unsigned _BitInt(373)) 1024) << 242),
+ 242 + 11);
+ TEST_COMPARE (stdc_bit_floor ((unsigned _BitInt(512)) 0) != 0, 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_floor ((unsigned _BitInt(512)) 0),
+ unsigned _BitInt(512)), 1);
+ TEST_COMPARE (stdc_bit_floor ((unsigned _BitInt(373)) 0) != 0, 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_floor ((unsigned _BitInt(373)) 0),
+ unsigned _BitInt(373)), 1);
+ TEST_COMPARE (stdc_bit_floor (~(unsigned _BitInt(512)) 0)
+ != ((unsigned _BitInt(512)) 1) << (512 - 1), 0);
+ TEST_COMPARE (stdc_bit_floor (~(unsigned _BitInt(373)) 0)
+ != ((unsigned _BitInt(373)) 1) << (373 - 1), 0);
+ TEST_COMPARE (stdc_bit_floor (((unsigned _BitInt(512)) 511) << 405)
+ != (((unsigned _BitInt(512)) 256) << 405), 0);
+ TEST_COMPARE (stdc_bit_floor (((unsigned _BitInt(373)) 512) << 242)
+ != (((unsigned _BitInt(512)) 512) << 242), 0);
+ TEST_COMPARE (stdc_bit_ceil ((unsigned _BitInt(512)) 0) != 1, 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_ceil ((unsigned _BitInt(512)) 0),
+ unsigned _BitInt(512)), 1);
+ TEST_COMPARE (stdc_bit_ceil ((unsigned _BitInt(373)) 0) != 1, 0);
+ TEST_COMPARE (expr_has_type (stdc_bit_ceil ((unsigned _BitInt(373)) 0),
+ unsigned _BitInt(373)), 1);
+ TEST_COMPARE (stdc_bit_ceil (~(unsigned _BitInt(512)) 0) != 0, 0);
+ TEST_COMPARE (stdc_bit_ceil (~(unsigned _BitInt(373)) 0) != 0, 0);
+ TEST_COMPARE (stdc_bit_ceil (((unsigned _BitInt(512)) 1) << (512 - 1))
+ != ((unsigned _BitInt(512)) 1) << (512 - 1), 0);
+ TEST_COMPARE (stdc_bit_ceil ((~(unsigned _BitInt(373)) 0) >> 1)
+ != ((unsigned _BitInt(373)) 1) << (373 - 1), 0);
+ TEST_COMPARE (stdc_bit_ceil (((unsigned _BitInt(512)) 512) << 405)
+ != (((unsigned _BitInt(512)) 512) << 405), 0);
+ TEST_COMPARE (stdc_bit_ceil (((unsigned _BitInt(373)) 513) << 242)
+ != (((unsigned _BitInt(512)) 1024) << 242), 0);
+ TEST_COMPARE (stdc_bit_floor ((unsigned _BitInt(BITINT_MAXWIDTH)) 0) != 0,
+ 0);
+ TEST_COMPARE (stdc_bit_floor (~(unsigned _BitInt(BITINT_MAXWIDTH)) 0)
+ != ((unsigned _BitInt(BITINT_MAXWIDTH)) 1) << (BITINT_MAXWIDTH
+ - 1), 0);
+ TEST_COMPARE (stdc_bit_floor (((unsigned _BitInt(BITINT_MAXWIDTH)) 511)
+ << 405)
+ != (((unsigned _BitInt(BITINT_MAXWIDTH)) 256) << 405), 0);
+ TEST_COMPARE (stdc_bit_floor (((unsigned _BitInt(BITINT_MAXWIDTH)) 512)
+ << 405)
+ != (((unsigned _BitInt(BITINT_MAXWIDTH)) 512) << 405), 0);
+ TEST_COMPARE (stdc_bit_ceil ((unsigned _BitInt(BITINT_MAXWIDTH)) 0) != 1, 0);
+ TEST_COMPARE (stdc_bit_ceil (~(unsigned _BitInt(BITINT_MAXWIDTH)) 0) != 0,
+ 0);
+ TEST_COMPARE (stdc_bit_ceil (((unsigned _BitInt(BITINT_MAXWIDTH)) 1)
+ << (BITINT_MAXWIDTH - 1))
+ != ((unsigned _BitInt(BITINT_MAXWIDTH)) 1) << (BITINT_MAXWIDTH
+ - 1), 0);
+ TEST_COMPARE (stdc_bit_ceil (((unsigned _BitInt(BITINT_MAXWIDTH)) 512)
+ << 405)
+ != (((unsigned _BitInt(BITINT_MAXWIDTH)) 512) << 405), 0);
+ TEST_COMPARE (stdc_bit_ceil (((unsigned _BitInt(BITINT_MAXWIDTH)) 513)
+ << 405)
+ != (((unsigned _BitInt(BITINT_MAXWIDTH)) 1024) << 405), 0);
+# endif
+# endif
+ return 0;
+}
+#else
+static int
+do_test (void)
+{
+ return 0;
+}
+#endif
+
+#include <support/test-driver.c>
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2024-01-31 18:19 [glibc] Use gcc __builtin_stdc_* builtins in stdbit.h if possible Jakub Jelinek
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