29 lines
643 B
C
29 lines
643 B
C
/* { dg-do compile } */
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/* { dg-options "-O -fstrict-aliasing -fno-tree-sra -fdump-tree-fre-details" } */
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/* Should be optimized, propagating &a into (*p)[i]. */
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/* For this testcase we need TBAA to work. */
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struct Foo
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{
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void *data;
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int size;
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};
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void foo(double (*q)[4], struct Foo *tmp1)
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{
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double a[4];
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int i;
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tmp1->data = &a;
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tmp1->size = 4;
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for (i=0; i<4; ++i)
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{
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double (*p)[4] = tmp1->data;
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(*p)[i] = (*q)[i];
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}
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}
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/* { dg-final { scan-tree-dump "Inserted .* &a" "fre" } } */
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/* { dg-final { scan-tree-dump "Replaced tmp1_.\\\(D\\\)->data" "fre" } } */
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/* { dg-final { cleanup-tree-dump "fre" } } */
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