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HEAD
PR tree-optimization/51799
[pf3gnuchains/gcc-fork.git]
/
gcc
/
testsuite
/
gcc.dg
/
tree-ssa
/
pr44258.c
1
/* { dg-do compile } */
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/* { dg-options "-O2 -fdump-tree-esra-details" } */
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struct blah
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{
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char a[4];
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};
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struct str
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{
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struct blah b1;
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char x;
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};
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struct val
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{
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char y;
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struct blah b2;
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};
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union U
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{
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struct str str;
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struct val val;
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};
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extern struct blah e_b1, e_b2;
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extern union U *e_u;
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int foo (int b)
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{
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union U u;
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u.str.b1 = e_b1;
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u.val.b2 = e_b2;
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u.str.b1.a[3] = 0;
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*e_u = u;
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}
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/* { dg-final { scan-tree-dump-times "Created a replacement" 0 "esra"} } */
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/* { dg-final { cleanup-tree-dump "esra" } } */