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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [nrv3.c] - Blame information for rev 298

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Line No. Rev Author Line
1 298 jeremybenn
/* Verify that gimple-level NRV is occurring when values other than the
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   return slot are call-clobbered.  */
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/* { dg-do compile } */
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/* { dg-options "-O -fdump-tree-optimized" } */
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#ifdef __SPU__
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/* SPU returns aggregates up to 1172 bytes in registers.  */
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typedef struct { int x[300]; void *y; } S;
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#else
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typedef struct { int x[20]; void *y; } S;
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#endif
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typedef struct { int a; S b; } T;
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S nrv_candidate (void);
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void use_result (S, int);
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int *ptr;
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void foo (void)
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{
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  S result;
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  T result_arr[10][5];
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  int i;
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  ptr = &i;
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  /* i is call-clobbered for these calls, but result and result_arr
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     aren't.  */
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  result = nrv_candidate ();
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  result_arr[3][4].b = nrv_candidate ();
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  use_result (result, i);
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  use_result (result_arr[3][4].b, i);
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}
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/* { dg-final { scan-tree-dump-times "return slot optimization" 2 "optimized" } } */
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/* { dg-final { cleanup-tree-dump "optimized" } } */

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