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Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/string-opt-18.c')
-rw-r--r--gcc/testsuite/gcc.c-torture/execute/string-opt-18.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/string-opt-18.c b/gcc/testsuite/gcc.c-torture/execute/string-opt-18.c
index 0ba2be6e628..dfa5c169e2d 100644
--- a/gcc/testsuite/gcc.c-torture/execute/string-opt-18.c
+++ b/gcc/testsuite/gcc.c-torture/execute/string-opt-18.c
@@ -15,6 +15,9 @@ extern int memcmp (const void *, const void *, size_t);
const char s1[] = "123";
char p[32] = "";
+char *s2 = "defg";
+char *s3 = "FGH";
+size_t l1 = 1;
int main()
{
@@ -60,6 +63,17 @@ int main()
if (__builtin_mempcpy (p, "ABCDE", 6) != p + 6 || memcmp (p, "ABCDE", 6))
abort ();
+ /* If the result of stpcpy/mempcpy is ignored, gcc should use
+ strcpy/memcpy. */
+ stpcpy (p + 3, s2);
+ if (memcmp (p, "ABCdefg", 8))
+ abort ();
+ mempcpy (p + 5, s3, 1);
+ if (memcmp (p, "ABCdeFg", 8))
+ abort ();
+ mempcpy (p + 6, s3 + 1, l1);
+ if (memcmp (p, "ABCdeFG", 8))
+ abort ();
return 0;
}