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annotate gcc/testsuite/c-c++-common/Warray-bounds-6.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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145
1830386684a0 gcc-9.2.0
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1 /* PR tree-optimization/86614 */
1830386684a0 gcc-9.2.0
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2 /* { dg-do compile } */
1830386684a0 gcc-9.2.0
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3 /* { dg-options "-O2 -Warray-bounds" } */
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4
1830386684a0 gcc-9.2.0
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5 extern char *strncpy (char *, const char *, __SIZE_TYPE__);
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6
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7 void sink (void *);
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8
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9 struct A { char b[17]; } a[2];
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10
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11 void g (const char *s, unsigned n)
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12 {
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13 int i = (char *)a[1].b - (char *)a + 1;
1830386684a0 gcc-9.2.0
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14 char *d = a[1].b;
1830386684a0 gcc-9.2.0
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15 /* Ensure the same bug is not diagnosed more than once. */
1830386684a0 gcc-9.2.0
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16 strncpy (d + i, s, n); /* { dg-warning "array subscript \[0-9]+ is outside array bounds of" } */
1830386684a0 gcc-9.2.0
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17 /* { dg-bogus "offset \[0-9]+ is out of the bounds \\\[0, \[0-9]+\\\] of object 'a' with type" "" { target *-*-* } .-1 } */
1830386684a0 gcc-9.2.0
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18 }