gcc/gcc/testsuite/gcc.dg/strlenopt-87.c

106 lines
1.8 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* PR tree-optimization/92157 - incorrect strcmp() == 0 result for unknown
strings
{ dg-do run }
{ dg-options "-O2 -Wall" } */
#include "strlenopt.h"
char a2[2], a3[3];
static inline __attribute__ ((always_inline)) int
verify_not_equal (const char *s, const char *t, int x)
{
int n = x < 0 ? strlen (s) : 0 < x ? strlen (t) : strlen (s) + strlen (t);
if (strcmp (t, s) == 0)
abort ();
return n;
}
__attribute__ ((noipa)) int test_a2_s (const char *s)
{
return verify_not_equal (a2, s, 0);
}
__attribute__ ((noipa)) int test_a2_a3 (void)
{
return verify_not_equal (a2, a3, 0);
}
__attribute__ ((noipa)) int test_a3_a2 (void)
{
return verify_not_equal (a3, a2, 0);
}
__attribute__ ((noipa)) int test_s_a2 (const char *s)
{
return verify_not_equal (s, a2, 0);
}
__attribute__ ((noipa)) int test_a2_s_1 (const char *s)
{
return verify_not_equal (a2, s, -1);
}
__attribute__ ((noipa)) int test_a2_a3_1 (void)
{
return verify_not_equal (a2, a3, -1);
}
__attribute__ ((noipa)) int test_a3_a2_1 (void)
{
return verify_not_equal (a3, a2, -1);
}
__attribute__ ((noipa)) int test_s_a2_1 (const char *s)
{
return verify_not_equal (s, a2, -1);
}
__attribute__ ((noipa)) int test_a2_s_2 (const char *s)
{
return verify_not_equal (a2, s, +1);
}
__attribute__ ((noipa)) int test_a2_a3_2 (void)
{
return verify_not_equal (a2, a3, +1);
}
__attribute__ ((noipa)) int test_a3_a2_2 (void)
{
return verify_not_equal (a3, a2, +1);
}
__attribute__ ((noipa)) int test_s_a2_2 (const char *s)
{
return verify_not_equal (s, a2, +1);
}
int main (void)
{
a2[0] = '1';
a3[0] = '1';
a3[0] = '2';
test_a2_s ("");
test_a2_a3 ();
test_a3_a2 ();
test_s_a2 ("");
test_a2_s_1 ("");
test_a2_a3_1 ();
test_a3_a2_1 ();
test_s_a2_1 ("");
test_a2_s_2 ("");
test_a2_a3_2 ();
test_a3_a2_2 ();
test_s_a2_2 ("");
}