Viewing file:  pr67675.c (1.28 KB) -rw-r--r--
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/* Check that run time alignment tests are generated only for inputs of
unknown alignment. */
/* { dg-do compile } */
/* { dg-options "-O2" } */
/* { dg-final { scan-assembler-not "jmp|bsr|jsr" } } */
/* { dg-final { scan-assembler-times {tst #3,r0} 6 } } */
/* { dg-final { scan-assembler-times {or r[0-9],r[0-9]} 1 } } */
int
test_00 (const char* x, const char* y)
{
/* 1x or reg,reg, 1x tst #3,r0 */
return __builtin_strcmp (x, y);
}
int
test_01 (const char* x, const char* y)
{
/* 1x tst #3,r0 */
return __builtin_strcmp (__builtin_assume_aligned (x, 4), y);
}
int
test_02 (const char* x, const char* y)
{
/* 1x tst #3,r0 */
return __builtin_strcmp (x, __builtin_assume_aligned (y, 4));
}
int
test_03 (const char* x, const char* y)
{
return __builtin_strcmp (__builtin_assume_aligned (x, 4),
__builtin_assume_aligned (y, 4));
}
int
test_04 (const char* x, const char* y)
{
/* 1x tst #3,r0 */
return __builtin_strcmp (x, "1234567");
}
int
test_05 (const char* x, const char* y)
{
/* 1x tst #3,r0 */
return __builtin_strcmp ("1234567", y);
}
int
test_06 (const char* s1)
{
/* 1x tst #3,r0 */
return __builtin_strncmp (s1, "abcdabcd", 8);
}
int
test_07 (const char* s1)
{
return __builtin_strncmp (__builtin_assume_aligned (s1, 4), "abcdabcd", 8);
}
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