/* Copyright (C) 2004 Free Software Foundation.
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/* Copyright (C) 2004 Free Software Foundation.
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Check builtin memmove and bcopy optimization when length is 1.
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Check builtin memmove and bcopy optimization when length is 1.
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Written by Jakub Jelinek, 9/14/2004. */
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Written by Jakub Jelinek, 9/14/2004. */
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extern void abort (void);
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extern void abort (void);
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typedef __SIZE_TYPE__ size_t;
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typedef __SIZE_TYPE__ size_t;
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extern void *memmove (void *, const void *, size_t);
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extern void *memmove (void *, const void *, size_t);
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extern void bcopy (const void *, void *, size_t);
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extern void bcopy (const void *, void *, size_t);
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extern int memcmp (const void *, const void *, size_t);
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extern int memcmp (const void *, const void *, size_t);
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char p[32] = "abcdefg";
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char p[32] = "abcdefg";
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char *q = p + 4;
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char *q = p + 4;
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void
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void
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main_test (void)
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main_test (void)
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{
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{
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/* memmove with length 1 can be optimized into memcpy if it can be
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/* memmove with length 1 can be optimized into memcpy if it can be
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expanded inline. */
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expanded inline. */
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if (memmove (p + 2, p + 3, 1) != p + 2 || memcmp (p, "abddefg", 8))
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if (memmove (p + 2, p + 3, 1) != p + 2 || memcmp (p, "abddefg", 8))
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abort ();
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abort ();
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if (memmove (p + 1, p + 1, 1) != p + 1 || memcmp (p, "abddefg", 8))
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if (memmove (p + 1, p + 1, 1) != p + 1 || memcmp (p, "abddefg", 8))
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abort ();
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abort ();
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if (memmove (q, p + 4, 1) != p + 4 || memcmp (p, "abddefg", 8))
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if (memmove (q, p + 4, 1) != p + 4 || memcmp (p, "abddefg", 8))
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abort ();
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abort ();
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bcopy (p + 5, p + 6, 1);
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bcopy (p + 5, p + 6, 1);
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if (memcmp (p, "abddeff", 8))
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if (memcmp (p, "abddeff", 8))
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abort ();
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abort ();
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bcopy (p + 1, p + 1, 1);
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bcopy (p + 1, p + 1, 1);
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if (memcmp (p, "abddeff", 8))
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if (memcmp (p, "abddeff", 8))
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abort ();
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abort ();
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bcopy (q, p + 4, 1);
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bcopy (q, p + 4, 1);
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if (memcmp (p, "abddeff", 8))
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if (memcmp (p, "abddeff", 8))
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abort ();
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abort ();
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}
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}
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