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111
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1 /* PR c/12085 */
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2 /* Origin: David Hollenberg <dhollen@mosis.org> */
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3
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4 /* Verify that the compiler doesn't inline a function at
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5 a calling point where it is viewed with a different
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6 prototype than the actual one. */
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7
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8 /* { dg-do compile } */
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9 /* { dg-options "-O3" } */
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10
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11 int foo1(int);
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12 int foo2();
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13
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14 typedef struct {
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15 double d;
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16 int a;
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17 } str_t;
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18
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19 void bar(double d, int i, str_t s)
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20 {
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21 d = ((double (*) (int)) foo1) (i); /* { dg-warning "8:non-compatible|abort" } */
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22 i = ((int (*) (double)) foo1) (d); /* { dg-warning "8:non-compatible|abort" } */
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23 s = ((str_t (*) (int)) foo1) (i); /* { dg-warning "8:non-compatible|abort" } */
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24 ((void (*) (int)) foo1) (d); /* { dg-warning "non-compatible|abort" } */
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25 i = ((int (*) (int)) foo1) (i); /* { dg-bogus "non-compatible|abort" } */
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26 (void) foo1 (i); /* { dg-bogus "non-compatible|abort" } */
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27
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28 d = ((double (*) (int)) foo2) (i); /* { dg-warning "8:non-compatible|abort" } */
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29 i = ((int (*) (double)) foo2) (d); /* { dg-bogus "non-compatible|abort" } */
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30 s = ((str_t (*) (int)) foo2) (i); /* { dg-warning "non-compatible|abort" } */
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31 ((void (*) (int)) foo2) (d); /* { dg-warning "non-compatible|abort" } */
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32 i = ((int (*) (int)) foo2) (i); /* { dg-bogus "non-compatible|abort" } */
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33 (void) foo2 (i); /* { dg-bogus "non-compatible|abort" } */
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34 }
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35
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36 int foo1(int arg)
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37 {
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38 /* Prevent the function from becoming const and thus DCEd. */
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39 __asm volatile ("" : "+r" (arg));
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40 return arg;
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41 }
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42
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43 int foo2(arg)
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44 int arg;
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45 {
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46 /* Prevent the function from becoming const and thus DCEd. */
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47 __asm volatile ("" : "+r" (arg));
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48 return arg;
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49 }
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