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

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [nrv5.c] - Blame information for rev 867

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

Line No. Rev Author Line
1 149 jeremybenn
/* Verify that NRV optimizations are prohibited when the LHS is
2
   something that may be call-clobbered. */
3
/* { dg-do compile } */
4
/* { dg-options "-O -fdump-tree-optimized" } */
5
 
6
typedef struct { int x[20]; void *y; } S;
7
typedef struct { int a; S b; } T;
8
S nrv_candidate (void);
9
void use_result (S);
10
void make_escape (S *);
11
void foo (void)
12
{
13
  S result;
14
  T result_arr[10][5];
15
 
16
  make_escape (&result);
17
  make_escape (&(result_arr[3][4].b));
18
 
19
  /* Neither call should be allowed to use NRV optimization.  */
20
  result = nrv_candidate ();
21
  result_arr[3][4].b = nrv_candidate ();
22
 
23
  use_result (result);
24
  use_result (result_arr[3][4].b);
25
}
26
 
27
/* { dg-final { scan-tree-dump-times "return slot optimization" 0 "optimized" } } */
28
/* { dg-final { cleanup-tree-dump "optimized" } } */

powered by: WebSVN 2.1.0

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