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annotate gcc/testsuite/gcc.dg/pr61240.c @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 84e7813d76e9
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* PR c/61240 */
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2 /* { dg-do compile } */
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3
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4 typedef __PTRDIFF_TYPE__ ptrdiff_t;
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5
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6 ptrdiff_t
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7 foo (ptrdiff_t a[4])
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8 {
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9 int i[4];
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10 int *p = i + 2;
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11 static ptrdiff_t b = p - (p - 1); /* { dg-bogus "integer overflow in expression" } */
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12 static ptrdiff_t c = (p - 1) - p; /* { dg-bogus "integer overflow in expression" } */
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13 static ptrdiff_t d = (p - 2) - (p - 1);/* { dg-bogus "integer overflow in expression" } */
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14 static ptrdiff_t e = (p - 1) - (p - 2);/* { dg-bogus "integer overflow in expression" } */
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15 a[0] = p - (p - 1); /* { dg-bogus "integer overflow in expression" } */
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16 a[1] = (p - 1) - p; /* { dg-bogus "integer overflow in expression" } */
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17 a[2] = (p - 2) - (p - 1); /* { dg-bogus "integer overflow in expression" } */
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18 a[3] = (p - 1) - (p - 2); /* { dg-bogus "integer overflow in expression" } */
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19 return b + c + d + e;
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20 }