20 lines
455 B
C
20 lines
455 B
C
/* { dg-do compile } */
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/* { dg-options "-O2 -fdump-tree-optimized" } */
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int spinlock[2];
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int main ()
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{
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volatile int * spinlock0;
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volatile int * spinlock1;
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spinlock0 = &spinlock[0];
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spinlock1 = &spinlock[1];
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*spinlock0 = 0;
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*spinlock1 = 0;
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while (*spinlock0);
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}
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/* { dg-final { scan-tree-dump "={v} .*spinlock" "optimized" } } */
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/* { dg-final { scan-tree-dump "spinlock.* ={v}" "optimized" } } */
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/* { dg-final { cleanup-tree-dump "optimized" } } */
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