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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [memset-2.c] - Rev 825
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/* 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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