OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [nrv3.c] - Rev 754

Go to most recent revision | 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" } */
 
#ifdef __SPU__
/* SPU returns aggregates up to 1172 bytes in registers.  */
typedef struct { int x[300]; void *y; } S;
#else
typedef struct { int x[20]; void *y; } S;
#endif
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" } } */
 

Go to most recent revision | Compare with Previous | Blame | View Log

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.