60 lines
1.0 KiB
C
60 lines
1.0 KiB
C
/* { dg-do run } */
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/* { dg-options "-O2 -fdump-tree-strlen" } */
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#include "strlenopt.h"
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volatile int v;
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size_t
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f1 (void)
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{
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char a[30];
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v += 1;
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memcpy (a, "1234567", 8);
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memcpy (a + 7, "89abcdefg", 10);
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memcpy (a + 16, "h", 2);
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return strlen (a); // This strlen should be optimized into 17.
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}
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size_t
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f2 (void)
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{
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char a[30];
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v += 2;
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strcpy (a, "1234567");
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strcpy (a + 7, "89abcdefg");
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strcpy (a + 16, "h");
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return strlen (a); // This strlen should be optimized into 17.
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}
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size_t
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f3 (char *a)
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{
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v += 3;
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memcpy (a, "1234567", 8);
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memcpy (a + 7, "89abcdefg", 10);
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memcpy (a + 16, "h", 2);
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return strlen (a); // This strlen should be optimized into 17.
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}
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size_t
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f4 (char *a)
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{
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v += 4;
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strcpy (a, "1234567");
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strcpy (a + 7, "89abcdefg");
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strcpy (a + 16, "h");
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return strlen (a); // This strlen should be optimized into 17.
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}
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int
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main ()
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{
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char a[30];
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if (f1 () != 17 || f2 () != 17 || f3 (a) != 17 || f4 (a) != 17)
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abort ();
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return 0;
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}
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/* { dg-final { scan-tree-dump-times "strlen \\(" 0 "strlen" } } */
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