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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O -fstrict-aliasing -fno-tree-sra -fdump-tree-fre1-details" } */
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3
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4 /* Should be optimized, propagating &a into (*p)[i]. */
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5
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6 /* For this testcase we need TBAA to work. */
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7
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8 struct Foo
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9 {
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10 void *data;
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11 int size;
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12 };
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13 void foo(double (*q)[4], struct Foo *tmp1)
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14 {
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15 double a[4];
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16 int i;
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17 tmp1->data = &a;
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18 tmp1->size = 4;
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19 for (i=0; i<4; ++i)
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20 {
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21 double (*p)[4] = tmp1->data;
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22 (*p)[i] = (*q)[i];
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23 }
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24 }
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25
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26 /* { dg-final { scan-tree-dump "Replaced tmp1_.\\\(D\\\)->data with &a" "fre1" } } */
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