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annotate gcc/testsuite/gcc.dg/pack-test-4.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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111
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1 /* PR c/11885
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2 Bug: flag4 was allocated into the same byte as the other flags.
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3 { dg-options "" }
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4 { dg-do run } */
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5
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6 extern void abort (void);
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7
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8 typedef unsigned char uint8_t;
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9
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10 typedef struct {
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11 uint8_t flag1:2;
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12 uint8_t flag2:1;
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13 uint8_t flag3:1;
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14
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15 uint8_t flag4;
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16
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17 } __attribute__ ((packed)) MyType;
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18
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19 int main (void)
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20 {
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21 MyType a;
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22 MyType *b = &a;
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23
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24 b->flag1 = 0;
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25 b->flag2 = 0;
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26 b->flag3 = 0;
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27
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28 b->flag4 = 0;
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29
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30 b->flag4++;
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31
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32 if (b->flag1 != 0)
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33 abort ();
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34
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35 return 0;
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36 }