URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Subversion Repositories openrisc
[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [nrv3.c] - Rev 816
Compare with Previous | Blame | View Log
/* Verify that gimple-level NRV is occurring when values other than the return slot are call-clobbered. */ /* { dg-do compile } */ /* { dg-options "-O -fdump-tree-optimized" } */ typedef struct { int x[20]; void *y; } S; typedef struct { int a; S b; } T; S nrv_candidate (void); void use_result (S, int); int *ptr; void foo (void) { S result; T result_arr[10][5]; int i; ptr = &i; /* i is call-clobbered for these calls, but result and result_arr aren't. */ result = nrv_candidate (); result_arr[3][4].b = nrv_candidate (); use_result (result, i); use_result (result_arr[3][4].b, i); } /* { dg-final { scan-tree-dump-times "return slot optimization" 2 "optimized" } } */ /* { dg-final { cleanup-tree-dump "optimized" } } */