On the arm target, __udivmoddi4() cannot be fully tested through normal
integer divisions.
Update #3716.
---
testsuites/unit/tc-compiler-builtins.c | 221 +++++++++++++++++++++++--
1 file changed, 207 insertions(+), 14 deletions(-)
diff --git a/testsuites/unit/tc-compiler-builtins.c
b/testsuites/unit/tc-compiler-builtins.c
index 3beebe06fa..7a470b6632 100644
--- a/testsuites/unit/tc-compiler-builtins.c
+++ b/testsuites/unit/tc-compiler-builtins.c
@@ -130,6 +130,16 @@
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;
@@ -174,6 +184,9 @@ 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 );
@@ -192,6 +205,9 @@ 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 );
@@ -215,6 +231,9 @@ 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 );
@@ -233,6 +252,9 @@ 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 );
@@ -256,6 +278,9 @@ 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 );
@@ -274,6 +299,9 @@ 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 );
@@ -298,6 +326,9 @@ 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 );
@@ -313,6 +344,9 @@ 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 );
@@ -328,6 +362,9 @@ 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 );
@@ -346,6 +383,9 @@ 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 );
@@ -364,6 +404,9 @@ 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 );
@@ -385,6 +428,9 @@ 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 );
@@ -406,6 +452,11 @@ 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 );
@@ -431,6 +482,11 @@ 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 );
@@ -456,6 +512,11 @@ 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 ) );
@@ -482,6 +543,11 @@ 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 ) );
@@ -507,6 +573,11 @@ 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 ) );
@@ -532,6 +603,11 @@ 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 ) );
@@ -552,6 +628,9 @@ 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 ) );
@@ -566,13 +645,21 @@ 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 ) {
- n = n / d;
+ x = n / d;
}
n = INT64_C( 1 );
@@ -580,7 +667,7 @@ static void CompilerUnitBuiltins_Action_19( void )
do_longjmp = true;
if ( setjmp( exception_return_context ) == 0 ) {
- n = n / d;
+ x = n / d;
}
n = INT64_C( 0x7fffffffffffffff );
@@ -588,7 +675,7 @@ static void CompilerUnitBuiltins_Action_19( void )
do_longjmp = true;
if ( setjmp( exception_return_context ) == 0 ) {
- n = n / d;
+ x = n / d;
}
n = INT64_C( 0x7fffffff00000000 );
@@ -596,7 +683,7 @@ static void CompilerUnitBuiltins_Action_19( void )
do_longjmp = true;
if ( setjmp( exception_return_context ) == 0 ) {
- n = n / d;
+ x = n / d;
}
n = INT64_C( 0 );
@@ -675,74 +762,164 @@ 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 ) {
- n = n / d;
+ 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 ) {
- n = n / d;
+ 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 ) {
- n = n / d;
+ 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 ) {
- n = n / d;
+ 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
}
/**
@@ -752,13 +929,21 @@ 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 ) {
- n = n % d;
+ x = n % d;
}
n = INT64_C( 1 );
@@ -766,7 +951,7 @@ static void CompilerUnitBuiltins_Action_21( void )
do_longjmp = true;
if ( setjmp( exception_return_context ) == 0 ) {
- n = n % d;
+ x = n % d;
}
n = INT64_C( 0x7fffffffffffffff );
@@ -774,7 +959,7 @@ static void CompilerUnitBuiltins_Action_21( void )
do_longjmp = true;
if ( setjmp( exception_return_context ) == 0 ) {
- n = n % d;
+ x = n % d;
}
n = INT64_C( 0x7fffffff00000000 );
@@ -782,7 +967,7 @@ static void CompilerUnitBuiltins_Action_21( void )
do_longjmp = true;
if ( setjmp( exception_return_context ) == 0 ) {
- n = n % d;
+ x = n % d;
}
n = INT64_C( 0 );
@@ -873,13 +1058,21 @@ 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 ) {
- n = n % d;
+ x = n % d;
}
n = UINT64_C( 1 );
@@ -887,7 +1080,7 @@ static void CompilerUnitBuiltins_Action_22( void )
do_longjmp = true;
if ( setjmp( exception_return_context ) == 0 ) {
- n = n % d;
+ x = n % d;
}
n = UINT64_C( 0 );
--
2.35.3
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