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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
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| Rev 298 |
Rev 384 |
/* { dg-do run } */
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/* { dg-do run } */
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/* { dg-options "-O2" } */
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/* { dg-options "-O2" } */
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/* Ensure that BIT_FIELD_REFs gets the appropriate VUSE.
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/* Ensure that BIT_FIELD_REFs gets the appropriate VUSE.
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Contributed by Paolo Bonzini <bonzini@gnu.org>.
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Contributed by Paolo Bonzini <bonzini@gnu.org>.
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This testcase actually never triggered in the CVS repo, but it did
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This testcase actually never triggered in the CVS repo, but it did
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in my local tree and it seems worth testing. In this test, the if's
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in my local tree and it seems worth testing. In this test, the if's
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are folded to BIT_FIELD_REFs but the VUSEs were erroneously left out.
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are folded to BIT_FIELD_REFs but the VUSEs were erroneously left out.
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Therefore, DOM did not see that i was modified between the two ifs
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Therefore, DOM did not see that i was modified between the two ifs
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and optimized away the second if. */
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and optimized away the second if. */
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extern void abort (void);
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extern void abort (void);
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extern void exit (int);
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extern void exit (int);
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struct x
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struct x
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{
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{
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unsigned b:1;
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unsigned b:1;
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unsigned c:1;
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unsigned c:1;
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};
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};
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struct x i = { 1, 1 };
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struct x i = { 1, 1 };
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int
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int
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main ()
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main ()
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{
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{
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i.b = 1;
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i.b = 1;
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if (i.b == 1 && i.c == 0)
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if (i.b == 1 && i.c == 0)
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exit (0);
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exit (0);
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i.c = 0;
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i.c = 0;
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if (i.b == 1 && i.c == 0)
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if (i.b == 1 && i.c == 0)
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exit (0);
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exit (0);
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abort ();
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abort ();
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}
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}
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