rtems/testsuites/unit/tc-compiler-builtins.c

/* SPDX-License-Identifier: BSD-2-Clause */

/**
 * @file
 *
 * @ingroup CompilerUnitBuiltins
 */

/*
 * Copyright (C) 2023 embedded brains GmbH & Co. KG
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * This file is part of the RTEMS quality process and was automatically
 * generated.  If you find something that needs to be fixed or
 * worded better please post a report or patch to an RTEMS mailing list
 * or raise a bug report:
 *
 * https://www.rtems.org/bugs.html
 *
 * For information on updating and regenerating please refer to the How-To
 * section in the Software Requirements Engineering chapter of the
 * RTEMS Software Engineering manual.  The manual is provided as a part of
 * a release.  For development sources please refer to the online
 * documentation at:
 *
 * https://docs.rtems.org
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <setjmp.h>
#include <stdint.h>

#include "../validation/tx-support.h"

#include <rtems/test.h>

/**
 * @defgroup CompilerUnitBuiltins spec:/compiler/unit/builtins
 *
 * @ingroup TestsuitesUnitNoClock0
 *
 * @brief These unit tests check compiler builtins.
 *
 * Explicitly test the 64-bit integer division and modulo operations.  They are
 * essential for the timekeeping services.  On most 32-bit targets, they need a
 * software implementation.
 *
 * This test case performs the following actions:
 *
 * - Check the return value of __builtin_clz() for a sample set of inputs.
 *
 * - Check the return value of __builtin_clzll() for a sample set of inputs.
 *
 * - Check the return value of __builtin_ctz() for a sample set of inputs.
 *
 * - Check the return value of __builtin_ctzll() for a sample set of inputs.
 *
 * - Check the return value of __builtin_ffs() for a sample set of inputs.
 *
 * - Check the return value of __builtin_ffsll() for a sample set of inputs.
 *
 * - Check the return value of __builtin_parity() for a sample set of inputs.
 *
 * - Check the return value of __builtin_parityll() for a sample set of inputs.
 *
 * - Check the return value of __builtin_popcount() for a sample set of inputs.
 *
 * - Check the return value of __builtin_popcountll() for a sample set of
 *   inputs.
 *
 * - Check the return value of __builtin_bswap32() for a sample set of inputs.
 *
 * - Check the return value of __builtin_bswap64() for a sample set of inputs.
 *
 * - Check signed 64-bit comparisons for a sample set of values.
 *
 * - Check unsigned 64-bit comparisons for a sample set of values.
 *
 * - Check signed 64-bit arithmetic left shift for a sample set of values.
 *
 * - Check signed 64-bit arithmetic right shift for a sample set of values.
 *
 * - Check unsigned 64-bit logical right shift for a sample set of values.
 *
 * - Check signed 64-bit multiplication for a sample set of values.
 *
 * - Check signed 64-bit negation for a sample set of values.
 *
 * - Check signed 64-bit divisions for a sample set of values.
 *
 * - Check unsigned 64-bit divisions for a sample set of values.
 *
 * - Check signed 64-bit modulo operations for a sample set of values.
 *
 * - Check unsigned 64-bit modulo operations for a sample set of values.
 *
 * @{
 */

#if __LONG_MAX__ == 0x7fffffffL && !defined(__aarch64__)
#define TEST_UDIVMODDI4
#endif

#if defined(TEST_UDIVMODDI4)
uint64_t __udivmoddi4( uint64_t n, uint64_t d, uint64_t *r );
#endif

#if defined(TEST_UDIVMODDI4) && defined(__arm__)
/*
 * Here __aeabi_uldivmod() may be used to carry out integer division
 * operations even though the reminder is unused.  This function is
 * implemented by __udivmoddi4() which may never get called without a
 * reminder for compiler generated code.
 */
#define TEST_UDIVMODDI4_WITHOUT_REMINDER
#endif

static bool do_longjmp;

static jmp_buf exception_return_context;

static void Fatal(
  rtems_fatal_source source,
  rtems_fatal_code   code,
  void              *arg
)
{
  (void) code;

  if ( source == RTEMS_FATAL_SOURCE_EXCEPTION && do_longjmp ) {
    do_longjmp = false;
    _ISR_Set_level( 0 );
    longjmp( arg, 1 );
  }
}

static void CompilerUnitBuiltins_Setup( void )
{
  SetFatalHandler( Fatal, exception_return_context );
}

static void CompilerUnitBuiltins_Setup_Wrap( void *arg )
{
  (void) arg;
  CompilerUnitBuiltins_Setup();
}

static void CompilerUnitBuiltins_Teardown( void )
{
  SetFatalHandler( NULL, NULL );
}

static void CompilerUnitBuiltins_Teardown_Wrap( void *arg )
{
  (void) arg;
  CompilerUnitBuiltins_Teardown();
}

static T_fixture CompilerUnitBuiltins_Fixture = {
  .setup = CompilerUnitBuiltins_Setup_Wrap,
  .stop = NULL,
  .teardown = CompilerUnitBuiltins_Teardown_Wrap,
  .scope = NULL,
  .initial_context = NULL
};

/**
 * @brief Check the return value of __builtin_clz() for a sample set of inputs.
 */
static void CompilerUnitBuiltins_Action_0( void )
{
  volatile unsigned int n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = 1U;
  T_eq_int( __builtin_clz( n ), 31 );

  n = 1U << 31;
  T_eq_int( __builtin_clz( n ), 0 );

  n = ~0U;
  T_eq_int( __builtin_clz( n ), 0 );
}

/**
 * @brief Check the return value of __builtin_clzll() for a sample set of
 *   inputs.
 */
static void CompilerUnitBuiltins_Action_1( void )
{
  volatile unsigned long long n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = 1ULL;
  T_eq_int( __builtin_clzll( n ), 63 );

  n = 1ULL << 31;
  T_eq_int( __builtin_clzll( n ), 32 );

  n = 1ULL << 32;
  T_eq_int( __builtin_clzll( n ), 31 );

  n = 1ULL << 63;
  T_eq_int( __builtin_clzll( n ), 0 );

  n = ~0ULL;
  T_eq_int( __builtin_clzll( n ), 0 );
}

/**
 * @brief Check the return value of __builtin_ctz() for a sample set of inputs.
 */
static void CompilerUnitBuiltins_Action_2( void )
{
  volatile unsigned int n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = 1U;
  T_eq_int( __builtin_ctz( n ), 0 );

  n = 1U << 31;
  T_eq_int( __builtin_ctz( n ), 31 );

  n = ~0U;
  T_eq_int( __builtin_ctz( n ), 0 );
}

/**
 * @brief Check the return value of __builtin_ctzll() for a sample set of
 *   inputs.
 */
static void CompilerUnitBuiltins_Action_3( void )
{
  volatile unsigned long long n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = 1ULL;
  T_eq_int( __builtin_ctzll( n ), 0 );

  n = 1ULL << 31;
  T_eq_int( __builtin_ctzll( n ), 31 );

  n = 1ULL << 32;
  T_eq_int( __builtin_ctzll( n ), 32 );

  n = 1ULL << 63;
  T_eq_int( __builtin_ctzll( n ), 63 );

  n = ~0ULL;
  T_eq_int( __builtin_ctzll( n ), 0 );
}

/**
 * @brief Check the return value of __builtin_ffs() for a sample set of inputs.
 */
static void CompilerUnitBuiltins_Action_4( void )
{
  volatile unsigned int n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = 1U;
  T_eq_int( __builtin_ffs( n ), 1 );

  n = 1U << 31;
  T_eq_int( __builtin_ffs( n ), 32 );

  n = 0U;
  T_eq_int( __builtin_ffs( n ), 0 );
}

/**
 * @brief Check the return value of __builtin_ffsll() for a sample set of
 *   inputs.
 */
static void CompilerUnitBuiltins_Action_5( void )
{
  volatile unsigned long long n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = 1ULL;
  T_eq_int( __builtin_ffsll( n ), 1 );

  n = 1ULL << 31;
  T_eq_int( __builtin_ffsll( n ), 32 );

  n = 1ULL << 32;
  T_eq_int( __builtin_ffsll( n ), 33 );

  n = 1ULL << 63;
  T_eq_int( __builtin_ffsll( n ), 64 );

  n = 0ULL;
  T_eq_int( __builtin_ffsll( n ), 0 );
}

/**
 * @brief Check the return value of __builtin_parity() for a sample set of
 *   inputs.
 */
static void CompilerUnitBuiltins_Action_6( void )
{
  volatile unsigned int n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = 1U;
  T_eq_int( __builtin_parity( n ), 1 );

  n = ~0U;
  T_eq_int( __builtin_parity( n ), 0 );
}

/**
 * @brief Check the return value of __builtin_parityll() for a sample set of
 *   inputs.
 */
static void CompilerUnitBuiltins_Action_7( void )
{
  volatile unsigned long long n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = 1ULL;
  T_eq_int( __builtin_parityll( n ), 1 );

  n = ~0ULL;
  T_eq_int( __builtin_parityll( n ), 0 );
}

/**
 * @brief Check the return value of __builtin_popcount() for a sample set of
 *   inputs.
 */
static void CompilerUnitBuiltins_Action_8( void )
{
  volatile unsigned int n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = 0U;
  T_eq_int( __builtin_popcount( n ), 0 );

  n = 1U;
  T_eq_int( __builtin_popcount( n ), 1 );

  n = ~0U;
  T_eq_int( __builtin_popcount( n ), 32 );
}

/**
 * @brief Check the return value of __builtin_popcountll() for a sample set of
 *   inputs.
 */
static void CompilerUnitBuiltins_Action_9( void )
{
  volatile unsigned long long n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = 0ULL;
  T_eq_int( __builtin_popcountll( n ), 0 );

  n = 1ULL;
  T_eq_int( __builtin_popcountll( n ), 1 );

  n = ~0ULL;
  T_eq_int( __builtin_popcountll( n ), 64 );
}

/**
 * @brief Check the return value of __builtin_bswap32() for a sample set of
 *   inputs.
 */
static void CompilerUnitBuiltins_Action_10( void )
{
  volatile uint32_t n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = UINT32_C( 0 );
  T_eq_u32( __builtin_bswap32( n ), n );

  n = UINT32_C( 1 );
  T_eq_u32( __builtin_bswap32( n ), n << 24 );

  n = UINT32_C( 0x12345678 );
  T_eq_u32( __builtin_bswap32( n ), UINT32_C( 0x78563412 ) );

  n = ~UINT32_C( 0 );
  T_eq_u32( __builtin_bswap32( n ), n );
}

/**
 * @brief Check the return value of __builtin_bswap64() for a sample set of
 *   inputs.
 */
static void CompilerUnitBuiltins_Action_11( void )
{
  volatile uint64_t n;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );

  n = UINT64_C( 0 );
  T_eq_u64( __builtin_bswap64( n ), n );

  n = UINT64_C( 1 );
  T_eq_u64( __builtin_bswap64( n ), n << 56 );

  n = UINT64_C( 0x123456789abcdef0 );
  T_eq_u64( __builtin_bswap64( n ), UINT64_C( 0xf0debc9a78563412 ) );

  n = ~UINT64_C( 0 );
  T_eq_u64( __builtin_bswap64( n ), n );
}

/**
 * @brief Check signed 64-bit comparisons for a sample set of values.
 */
static void CompilerUnitBuiltins_Action_12( void )
{
  volatile int64_t a;
  volatile int64_t b;

  a = 0;
  RTEMS_OBFUSCATE_VARIABLE( a );
  b = 0;
  RTEMS_OBFUSCATE_VARIABLE( b );

  a = INT64_C( 0 );
  b = INT64_C( 0 );
  T_false( a < b );

  a = INT64_C( 0 );
  b = INT64_C( 1 );
  T_true( a < b );

  a = INT64_C( 0x123456789abcdef0 );
  b = INT64_C( 0xf0debc9a78563412 );
  T_false( a < b );

  a = INT64_C( 0xf0debc9a78563412 );
  b = INT64_C( 0x123456789abcdef0 );
  T_true( a < b );
}

/**
 * @brief Check unsigned 64-bit comparisons for a sample set of values.
 */
static void CompilerUnitBuiltins_Action_13( void )
{
  volatile uint64_t a;
  volatile uint64_t b;

  a = 0;
  RTEMS_OBFUSCATE_VARIABLE( a );
  b = 0;
  RTEMS_OBFUSCATE_VARIABLE( b );

  a = UINT64_C( 0 );
  b = UINT64_C( 0 );
  T_false( a < b );

  a = UINT64_C( 0 );
  b = UINT64_C( 1 );
  T_true( a < b );

  a = UINT64_C( 0x123456789abcdef0 );
  b = UINT64_C( 0xf0debc9a78563412 );
  T_true( a < b );

  a = UINT64_C( 0xf0debc9a78563412 );
  b = UINT64_C( 0x123456789abcdef0 );
  T_false( a < b );
}

/**
 * @brief Check signed 64-bit arithmetic left shift for a sample set of values.
 */
static void CompilerUnitBuiltins_Action_14( void )
{
  volatile int64_t i;
  volatile int s;

  i = 0;
  RTEMS_OBFUSCATE_VARIABLE( i );
  s = 0;
  RTEMS_OBFUSCATE_VARIABLE( s );

  i = INT64_C( 1 );
  s = 0;
  T_eq_i64( i << s, INT64_C( 1 ) );

  i = -INT64_C( 1 );
  s = 0;
  T_eq_i64( i << s, -INT64_C( 1 ) );

  i = INT64_C( 1 );
  s = 1;
  T_eq_i64( i << s, INT64_C( 2 ) );

  i = -INT64_C( 1 );
  s = 1;
  T_eq_i64( i << s, -INT64_C( 2 ) );
}

/**
 * @brief Check signed 64-bit arithmetic right shift for a sample set of
 *   values.
 */
static void CompilerUnitBuiltins_Action_15( void )
{
  volatile int64_t i;
  volatile int s;

  i = 0;
  RTEMS_OBFUSCATE_VARIABLE( i );
  s = 0;
  RTEMS_OBFUSCATE_VARIABLE( s );

  i = INT64_C( 1 );
  s = 0;
  T_eq_i64( i >> s, INT64_C( 1 ) );

  i = -INT64_C( 1 );
  s = 0;
  T_eq_i64( i >> s, -INT64_C( 1 ) );

  i = INT64_C( 2 );
  s = 1;
  T_eq_i64( i >> s, INT64_C( 1 ) );

  i = -INT64_C( 2 );
  s = 1;
  T_eq_i64( i >> s, -INT64_C( 1 ) );
}

/**
 * @brief Check unsigned 64-bit logical right shift for a sample set of values.
 */
static void CompilerUnitBuiltins_Action_16( void )
{
  volatile uint64_t i;
  volatile int s;

  i = 0;
  RTEMS_OBFUSCATE_VARIABLE( i );
  s = 0;
  RTEMS_OBFUSCATE_VARIABLE( s );

  i = UINT64_C( 1 );
  s = 0;
  T_eq_u64( i >> s, UINT64_C( 1 ) );

  i = -UINT64_C( 1 );
  s = 0;
  T_eq_u64( i >> s, UINT64_C( 0xffffffffffffffff ) );

  i = UINT64_C( 2 );
  s = 1;
  T_eq_u64( i >> s, UINT64_C( 1 ) );

  i = -UINT64_C( 2 );
  s = 1;
  T_eq_u64( i >> s, UINT64_C( 0x7fffffffffffffff ) );
}

/**
 * @brief Check signed 64-bit multiplication for a sample set of values.
 */
static void CompilerUnitBuiltins_Action_17( void )
{
  volatile int64_t a;
  volatile int64_t b;

  a = 0;
  RTEMS_OBFUSCATE_VARIABLE( a );
  b = 0;
  RTEMS_OBFUSCATE_VARIABLE( b );

  a = INT64_C( 1 );
  b = INT64_C( 1 );
  T_eq_i64( a * b, INT64_C( 1 ) );

  a = INT64_C( 1 );
  b = INT64_C( 0 );
  T_eq_i64( a * b, INT64_C( 0 ) );

  a = INT64_C( 0 );
  b = INT64_C( 1 );
  T_eq_i64( a * b, INT64_C( 0 ) );
}

/**
 * @brief Check signed 64-bit negation for a sample set of values.
 */
static void CompilerUnitBuiltins_Action_18( void )
{
  volatile int64_t i;

  i = 0;
  RTEMS_OBFUSCATE_VARIABLE( i );

  i = INT64_C( 1 );
  T_eq_i64( -i, -INT64_C( 1 ) );

  i = -INT64_C( 1 );
  T_eq_i64( -i, INT64_C( 1 ) );
}

/**
 * @brief Check signed 64-bit divisions for a sample set of values.
 */
static void CompilerUnitBuiltins_Action_19( void )
{
  volatile int64_t n;
  volatile int64_t d;
  volatile int64_t x;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );
  d = 0;
  RTEMS_OBFUSCATE_VARIABLE( d );
  x = 0;
  RTEMS_OBFUSCATE_VARIABLE( x );

  n = INT64_C( 0 );
  d = INT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n / d;
  }

  n = INT64_C( 1 );
  d = INT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n / d;
  }

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n / d;
  }

  n = INT64_C( 0x7fffffff00000000 );
  d = INT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n / d;
  }

  n = INT64_C( 0 );
  d = INT64_C( 1 );
  T_eq_i64( n / d, INT64_C( 0 ) );

  n = INT64_C( 1 );
  d = INT64_C( 1 );
  T_eq_i64( n / d, INT64_C( 1 ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 1 );
  T_eq_i64( n / d, INT64_C( 9223372036854775807 ) );

  n = INT64_C( 2 );
  d = INT64_C( 1 );
  T_eq_i64( n / d, INT64_C( 2 ) );

  n = INT64_C( 2 );
  d = INT64_C( 1 );
  T_eq_i64( n / d, INT64_C( 2 ) );

  n = INT64_C( 1 );
  d = INT64_C( 0x7fffffffffffffff );
  T_eq_i64( n / d, INT64_C( 0 ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0x7fffffffffffffff );
  T_eq_i64( n / d, INT64_C( 1 ) );

  n = INT64_C( 1 );
  d = INT64_C( 0x7fffffff00000000 );
  T_eq_i64( n / d, INT64_C( 0 ) );

  n = INT64_C( 0x7fffffff00000000 );
  d = INT64_C( 0x7fffffff00000000 );
  T_eq_i64( n / d, INT64_C( 1 ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0x7fffffff00000000 );
  T_eq_i64( n / d, INT64_C( 1 ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0x8000000000000000 );
  T_eq_i64( n / d, INT64_C( 0 ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0x0000000080000000 );
  T_eq_i64( n / d, INT64_C( 0xffffffff ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0x00000000f0000000 );
  T_eq_i64( n / d, INT64_C( 2290649224 ) );

  n = INT64_C( 0x00000001ffffffff );
  d = INT64_C( 0x00000000f0000000 );
  T_eq_i64( n / d, INT64_C( 2 ) );

  n = INT64_C( 0x0000000fffffffff );
  d = INT64_C( 0x000000000000000f );
  T_eq_i64( n / d, INT64_C( 4581298449 ) );

  n = INT64_C( 0x0000000100000001 );
  d = INT64_C( 0x0000000f00000000 );
  T_eq_i64( n / d, INT64_C( 0 ) );

  n = INT64_C( 0x0000000f0000000f );
  d = INT64_C( 0x000000ff0000000f );
  T_eq_i64( n / d, INT64_C( 0 ) );
}

/**
 * @brief Check unsigned 64-bit divisions for a sample set of values.
 */
static void CompilerUnitBuiltins_Action_20( void )
{
  volatile uint64_t n;
  volatile uint64_t d;
  volatile uint64_t x;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );
  d = 0;
  RTEMS_OBFUSCATE_VARIABLE( d );
  x = 0;
  RTEMS_OBFUSCATE_VARIABLE( x );

  n = UINT64_C( 0 );
  d = UINT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n / d;
  }

  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    __udivmoddi4( n, d, NULL );
  }
  #endif

  n = UINT64_C( 1 );
  d = UINT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n / d;
  }

  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    __udivmoddi4( n, d, NULL );
  }
  #endif

  n = UINT64_C( 0x7fffffffffffffff );
  d = UINT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n / d;
  }

  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    __udivmoddi4( n, d, NULL );
  }
  #endif

  n = UINT64_C( 0x7fffffff00000000 );
  d = UINT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n / d;
  }

  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    __udivmoddi4( n, d, NULL );
  }
  #endif

  n = UINT64_C( 0x7fffffff00000000 );
  d = UINT64_C( 0x7fffffff00000000 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n / d;
  }

  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    __udivmoddi4( n, d, NULL );
  }
  #endif

  n = UINT64_C( 0 );
  d = UINT64_C( 1 );
  T_eq_u64( n / d, UINT64_C( 0 ) );
  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  T_eq_u64( __udivmoddi4( n, d, NULL ), UINT64_C( 0 ) );
  #endif

  n = UINT64_C( 1 );
  d = UINT64_C( 1 );
  T_eq_u64( n / d, UINT64_C( 1 ) );
  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  T_eq_u64( __udivmoddi4( n, d, NULL ), UINT64_C( 1 ) );
  #endif

  n = UINT64_C( 0xffffffffffffffff );
  d = UINT64_C( 1 );
  T_eq_u64( n / d, UINT64_C( 0xffffffffffffffff ) );
  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  T_eq_u64( __udivmoddi4( n, d, NULL ), UINT64_C( 0xffffffffffffffff ) );
  #endif

  n = UINT64_C( 2 );
  d = UINT64_C( 1 );
  T_eq_u64( n / d, UINT64_C( 2 ) );
  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  T_eq_u64( __udivmoddi4( n, d, NULL ), UINT64_C( 2 ) );
  #endif

  n = UINT64_C( 1 );
  d = UINT64_C( 0xffffffffffffffff );
  T_eq_u64( n / d, UINT64_C( 0 ) );
  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  T_eq_u64( __udivmoddi4( n, d, NULL ), UINT64_C( 0 ) );
  #endif

  n = UINT64_C( 0xffffffffffffffff );
  d = UINT64_C( 0xffffffffffffffff );
  T_eq_u64( n / d, UINT64_C( 1 ) );
  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  T_eq_u64( __udivmoddi4( n, d, NULL ), UINT64_C( 1 ) );
  #endif

  n = UINT64_C( 0xffffffffffffffff );
  d = UINT64_C( 0x8000000000000000 );
  T_eq_u64( n / d, UINT64_C( 1 ) );
  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  T_eq_u64( __udivmoddi4( n, d, NULL ), UINT64_C( 1 ) );
  #endif

  n = UINT64_C( 0x0000000100000001 );
  d = UINT64_C( 0x0000000f00000000 );
  T_eq_u64( n / d, UINT64_C( 0 ) );
  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  T_eq_u64( __udivmoddi4( n, d, NULL ), UINT64_C( 0 ) );
  #endif

  n = UINT64_C( 0x0000000100000000 );
  d = UINT64_C( 0x0000000f00000001 );
  T_eq_u64( n / d, UINT64_C( 0 ) );
  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  T_eq_u64( __udivmoddi4( n, d, NULL ), UINT64_C( 0 ) );
  #endif

  n = UINT64_C( 0xffffffff0000000f );
  d = UINT64_C( 0x000000010000000f );
  T_eq_u64( n / d, UINT64_C( 4294967280 ) );
  #if defined(TEST_UDIVMODDI4_WITHOUT_REMINDER)
  T_eq_u64( __udivmoddi4( n, d, NULL ), UINT64_C( 4294967280 ) );
  #endif
}

/**
 * @brief Check signed 64-bit modulo operations for a sample set of values.
 */
static void CompilerUnitBuiltins_Action_21( void )
{
  volatile int64_t n;
  volatile int64_t d;
  volatile int64_t x;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );
  d = 0;
  RTEMS_OBFUSCATE_VARIABLE( d );
  x = 0;
  RTEMS_OBFUSCATE_VARIABLE( x );

  n = INT64_C( 0 );
  d = INT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n % d;
  }

  n = INT64_C( 1 );
  d = INT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n % d;
  }

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n % d;
  }

  n = INT64_C( 0x7fffffff00000000 );
  d = INT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n % d;
  }

  n = INT64_C( 0 );
  d = INT64_C( 1 );
  T_eq_i64( n % d, INT64_C( 0 ) );

  n = INT64_C( 1 );
  d = INT64_C( 1 );
  T_eq_i64( n % d, INT64_C( 0 ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 1 );
  T_eq_i64( n % d, INT64_C( 0 ) );

  n = INT64_C( 2 );
  d = INT64_C( 1 );
  T_eq_i64( n % d, INT64_C( 0 ) );

  n = INT64_C( 2 );
  d = INT64_C( 1 );
  T_eq_i64( n % d, INT64_C( 0 ) );

  n = INT64_C( 1 );
  d = INT64_C( 0x7fffffffffffffff );
  T_eq_i64( n % d, INT64_C( 1 ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0x7fffffffffffffff );
  T_eq_i64( n % d, INT64_C( 0 ) );

  n = INT64_C( 1 );
  d = INT64_C( 0x7fffffff00000000 );
  T_eq_i64( n % d, INT64_C( 1 ) );

  n = INT64_C( 0x7fffffff00000000 );
  d = INT64_C( 0x7fffffff00000000 );
  T_eq_i64( n % d, INT64_C( 0 ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0x7fffffff00000000 );
  T_eq_i64( n % d, INT64_C( 0xffffffff ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0x8000000000000000 );
  T_eq_i64( n % d, INT64_C( 0x7fffffffffffffff ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0x0000000080000000 );
  T_eq_i64( n % d, INT64_C( 2147483647 ) );

  n = INT64_C( 0x7fffffffffffffff );
  d = INT64_C( 0x00000000f0000000 );
  T_eq_i64( n % d, INT64_C( 2147483647 ) );

  n = INT64_C( 0x00000001ffffffff );
  d = INT64_C( 0x00000000f0000000 );
  T_eq_i64( n % d, INT64_C( 536870911 ) );

  n = INT64_C( 0x0000000fffffffff );
  d = INT64_C( 0x000000000000000f );
  T_eq_i64( n % d, INT64_C( 0 ) );

  n = INT64_C( 0x0000000100000001 );
  d = INT64_C( 0x0000000f00000000 );
  T_eq_i64( n % d, INT64_C( 4294967297 ) );

  n = INT64_C( 0x0000000f0000000f );
  d = INT64_C( 0x000000ff0000000f );
  T_eq_i64( n % d, INT64_C( 64424509455 ) );

  #if defined(TEST_UDIVMODDI4)
  /*
   * The above test cases may use __udivmoddi4().  However, the below
   * parameter values for __udivmoddi4() cannot be obtained through the
   * signed modulo or division operations.  On some targets, calls to
   * __udivmoddi4() may result from complex optimizations.
   */
  n = INT64_C( 0xffffffff0000000f );
  d = INT64_C( 0x000000010000000f );
  T_eq_u64( __udivmoddi4( n, d, NULL ), INT64_C( 4294967280 ) );
  #endif
}

/**
 * @brief Check unsigned 64-bit modulo operations for a sample set of values.
 */
static void CompilerUnitBuiltins_Action_22( void )
{
  volatile uint64_t n;
  volatile uint64_t d;
  volatile uint64_t x;

  n = 0;
  RTEMS_OBFUSCATE_VARIABLE( n );
  d = 0;
  RTEMS_OBFUSCATE_VARIABLE( d );
  x = 0;
  RTEMS_OBFUSCATE_VARIABLE( x );

  n = UINT64_C( 0 );
  d = UINT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n % d;
  }

  n = UINT64_C( 1 );
  d = UINT64_C( 0 );
  do_longjmp = true;

  if ( setjmp( exception_return_context ) == 0 ) {
    x = n % d;
  }

  n = UINT64_C( 0 );
  d = UINT64_C( 1 );
  T_eq_u64( n % d, UINT64_C( 0 ) );

  n = UINT64_C( 1 );
  d = UINT64_C( 1 );
  T_eq_u64( n % d, UINT64_C( 0 ) );

  n = UINT64_C( 0xffffffffffffffff );
  d = UINT64_C( 1 );
  T_eq_u64( n % d, UINT64_C( 0 ) );

  n = UINT64_C( 2 );
  d = UINT64_C( 1 );
  T_eq_u64( n % d, UINT64_C( 0 ) );

  n = UINT64_C( 1 );
  d = UINT64_C( 0xffffffffffffffff );
  T_eq_u64( n % d, UINT64_C( 1 ) );

  n = UINT64_C( 0xffffffffffffffff );
  d = UINT64_C( 0xffffffffffffffff );
  T_eq_u64( n % d, UINT64_C( 0 ) );
}

/**
 * @fn void T_case_body_CompilerUnitBuiltins( void )
 */
T_TEST_CASE_FIXTURE( CompilerUnitBuiltins, &CompilerUnitBuiltins_Fixture )
{
  CompilerUnitBuiltins_Action_0();
  CompilerUnitBuiltins_Action_1();
  CompilerUnitBuiltins_Action_2();
  CompilerUnitBuiltins_Action_3();
  CompilerUnitBuiltins_Action_4();
  CompilerUnitBuiltins_Action_5();
  CompilerUnitBuiltins_Action_6();
  CompilerUnitBuiltins_Action_7();
  CompilerUnitBuiltins_Action_8();
  CompilerUnitBuiltins_Action_9();
  CompilerUnitBuiltins_Action_10();
  CompilerUnitBuiltins_Action_11();
  CompilerUnitBuiltins_Action_12();
  CompilerUnitBuiltins_Action_13();
  CompilerUnitBuiltins_Action_14();
  CompilerUnitBuiltins_Action_15();
  CompilerUnitBuiltins_Action_16();
  CompilerUnitBuiltins_Action_17();
  CompilerUnitBuiltins_Action_18();
  CompilerUnitBuiltins_Action_19();
  CompilerUnitBuiltins_Action_20();
  CompilerUnitBuiltins_Action_21();
  CompilerUnitBuiltins_Action_22();
}

/** @} */