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Diffstat (limited to 'SingleSource/Regression/C/gcc-c-torture/execute/memset-2.c')
-rw-r--r--SingleSource/Regression/C/gcc-c-torture/execute/memset-2.c333
1 files changed, 333 insertions, 0 deletions
diff --git a/SingleSource/Regression/C/gcc-c-torture/execute/memset-2.c b/SingleSource/Regression/C/gcc-c-torture/execute/memset-2.c
new file mode 100644
index 00000000..a17face1
--- /dev/null
+++ b/SingleSource/Regression/C/gcc-c-torture/execute/memset-2.c
@@ -0,0 +1,333 @@
+/* Copyright (C) 2002 Free Software Foundation.
+
+ Test memset with various combinations of pointer alignments and constant
+ lengths to make sure any optimizations in the compiler are correct.
+
+ Written by Roger Sayle, April 22, 2002. */
+
+#ifndef MAX_OFFSET
+#define MAX_OFFSET (sizeof (long long))
+#endif
+
+#ifndef MAX_COPY
+#define MAX_COPY 15
+#endif
+
+#ifndef MAX_EXTRA
+#define MAX_EXTRA (sizeof (long long))
+#endif
+
+#define MAX_LENGTH (MAX_OFFSET + MAX_COPY + MAX_EXTRA)
+
+static union {
+ char buf[MAX_LENGTH];
+ long long align_int;
+ long double align_fp;
+} u;
+
+char A = 'A';
+
+void reset ()
+{
+ int i;
+
+ for (i = 0; i < MAX_LENGTH; i++)
+ u.buf[i] = 'a';
+}
+
+void check (int off, int len, int ch)
+{
+ char *q;
+ int i;
+
+ q = u.buf;
+ for (i = 0; i < off; i++, q++)
+ if (*q != 'a')
+ abort ();
+
+ for (i = 0; i < len; i++, q++)
+ if (*q != ch)
+ abort ();
+
+ for (i = 0; i < MAX_EXTRA; i++, q++)
+ if (*q != 'a')
+ abort ();
+}
+
+int main ()
+{
+ int off;
+ char *p;
+
+ /* len == 1 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 1);
+ if (p != u.buf + off) abort ();
+ check (off, 1, '\0');
+
+ p = memset (u.buf + off, A, 1);
+ if (p != u.buf + off) abort ();
+ check (off, 1, 'A');
+
+ p = memset (u.buf + off, 'B', 1);
+ if (p != u.buf + off) abort ();
+ check (off, 1, 'B');
+ }
+
+ /* len == 2 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 2);
+ if (p != u.buf + off) abort ();
+ check (off, 2, '\0');
+
+ p = memset (u.buf + off, A, 2);
+ if (p != u.buf + off) abort ();
+ check (off, 2, 'A');
+
+ p = memset (u.buf + off, 'B', 2);
+ if (p != u.buf + off) abort ();
+ check (off, 2, 'B');
+ }
+
+ /* len == 3 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 3);
+ if (p != u.buf + off) abort ();
+ check (off, 3, '\0');
+
+ p = memset (u.buf + off, A, 3);
+ if (p != u.buf + off) abort ();
+ check (off, 3, 'A');
+
+ p = memset (u.buf + off, 'B', 3);
+ if (p != u.buf + off) abort ();
+ check (off, 3, 'B');
+ }
+
+ /* len == 4 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 4);
+ if (p != u.buf + off) abort ();
+ check (off, 4, '\0');
+
+ p = memset (u.buf + off, A, 4);
+ if (p != u.buf + off) abort ();
+ check (off, 4, 'A');
+
+ p = memset (u.buf + off, 'B', 4);
+ if (p != u.buf + off) abort ();
+ check (off, 4, 'B');
+ }
+
+ /* len == 5 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 5);
+ if (p != u.buf + off) abort ();
+ check (off, 5, '\0');
+
+ p = memset (u.buf + off, A, 5);
+ if (p != u.buf + off) abort ();
+ check (off, 5, 'A');
+
+ p = memset (u.buf + off, 'B', 5);
+ if (p != u.buf + off) abort ();
+ check (off, 5, 'B');
+ }
+
+ /* len == 6 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 6);
+ if (p != u.buf + off) abort ();
+ check (off, 6, '\0');
+
+ p = memset (u.buf + off, A, 6);
+ if (p != u.buf + off) abort ();
+ check (off, 6, 'A');
+
+ p = memset (u.buf + off, 'B', 6);
+ if (p != u.buf + off) abort ();
+ check (off, 6, 'B');
+ }
+
+ /* len == 7 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 7);
+ if (p != u.buf + off) abort ();
+ check (off, 7, '\0');
+
+ p = memset (u.buf + off, A, 7);
+ if (p != u.buf + off) abort ();
+ check (off, 7, 'A');
+
+ p = memset (u.buf + off, 'B', 7);
+ if (p != u.buf + off) abort ();
+ check (off, 7, 'B');
+ }
+
+ /* len == 8 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 8);
+ if (p != u.buf + off) abort ();
+ check (off, 8, '\0');
+
+ p = memset (u.buf + off, A, 8);
+ if (p != u.buf + off) abort ();
+ check (off, 8, 'A');
+
+ p = memset (u.buf + off, 'B', 8);
+ if (p != u.buf + off) abort ();
+ check (off, 8, 'B');
+ }
+
+ /* len == 9 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 9);
+ if (p != u.buf + off) abort ();
+ check (off, 9, '\0');
+
+ p = memset (u.buf + off, A, 9);
+ if (p != u.buf + off) abort ();
+ check (off, 9, 'A');
+
+ p = memset (u.buf + off, 'B', 9);
+ if (p != u.buf + off) abort ();
+ check (off, 9, 'B');
+ }
+
+ /* len == 10 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 10);
+ if (p != u.buf + off) abort ();
+ check (off, 10, '\0');
+
+ p = memset (u.buf + off, A, 10);
+ if (p != u.buf + off) abort ();
+ check (off, 10, 'A');
+
+ p = memset (u.buf + off, 'B', 10);
+ if (p != u.buf + off) abort ();
+ check (off, 10, 'B');
+ }
+
+ /* len == 11 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 11);
+ if (p != u.buf + off) abort ();
+ check (off, 11, '\0');
+
+ p = memset (u.buf + off, A, 11);
+ if (p != u.buf + off) abort ();
+ check (off, 11, 'A');
+
+ p = memset (u.buf + off, 'B', 11);
+ if (p != u.buf + off) abort ();
+ check (off, 11, 'B');
+ }
+
+ /* len == 12 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 12);
+ if (p != u.buf + off) abort ();
+ check (off, 12, '\0');
+
+ p = memset (u.buf + off, A, 12);
+ if (p != u.buf + off) abort ();
+ check (off, 12, 'A');
+
+ p = memset (u.buf + off, 'B', 12);
+ if (p != u.buf + off) abort ();
+ check (off, 12, 'B');
+ }
+
+ /* len == 13 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 13);
+ if (p != u.buf + off) abort ();
+ check (off, 13, '\0');
+
+ p = memset (u.buf + off, A, 13);
+ if (p != u.buf + off) abort ();
+ check (off, 13, 'A');
+
+ p = memset (u.buf + off, 'B', 13);
+ if (p != u.buf + off) abort ();
+ check (off, 13, 'B');
+ }
+
+ /* len == 14 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 14);
+ if (p != u.buf + off) abort ();
+ check (off, 14, '\0');
+
+ p = memset (u.buf + off, A, 14);
+ if (p != u.buf + off) abort ();
+ check (off, 14, 'A');
+
+ p = memset (u.buf + off, 'B', 14);
+ if (p != u.buf + off) abort ();
+ check (off, 14, 'B');
+ }
+
+ /* len == 15 */
+ for (off = 0; off < MAX_OFFSET; off++)
+ {
+ reset ();
+
+ p = memset (u.buf + off, '\0', 15);
+ if (p != u.buf + off) abort ();
+ check (off, 15, '\0');
+
+ p = memset (u.buf + off, A, 15);
+ if (p != u.buf + off) abort ();
+ check (off, 15, 'A');
+
+ p = memset (u.buf + off, 'B', 15);
+ if (p != u.buf + off) abort ();
+ check (off, 15, 'B');
+ }
+
+ exit (0);
+}
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