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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.c-torture/execute/20011024-1.c | |
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Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/20011024-1.c')
-rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/20011024-1.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/20011024-1.c b/gcc/testsuite/gcc.c-torture/execute/20011024-1.c new file mode 100644 index 000000000..5b871bbb9 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/20011024-1.c @@ -0,0 +1,22 @@ +/* Test whether store motion recognizes pure functions as potentially reading + any memory. */ + +typedef __SIZE_TYPE__ size_t; +extern void *memcpy (void *dest, const void *src, size_t n); +extern size_t strlen (const char *s); +extern int strcmp (const char *s1, const char *s2) __attribute__((pure)); + +char buf[50]; + +static void foo (void) +{ + if (memcpy (buf, "abc", 4) != buf) abort (); + if (strcmp (buf, "abc")) abort (); + memcpy (buf, "abcdefgh", strlen ("abcdefgh") + 1); +} + +int main (void) +{ + foo (); + return 0; +} |