(root)/
gcc-13.2.0/
gcc/
testsuite/
gcc.dg/
tree-ssa/
ssa-dse-5.c
       1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-optimized" } */
       3  
       4  int x; 
       5   
       6  int 
       7  f1 (int i, int j, int k) 
       8  { 
       9    int *p = k ? &i : &j; 
      10    i = 3;
      11    *p = 5; 
      12    x = j; 
      13  } 
      14  
      15  /* The assignment "i = 3" is partially dead.  Our DSE pass doesn't handle
      16     detection of partially dead assignments.
      17  
      18     There's two outputs which would indicate that the optimization was
      19     performed.
      20  
      21     If we used block copying to detect and eliminate the partially dead
      22     store, then we should see an assignment "i = 5" somewhere in the
      23     dump file.
      24  
      25     Another approach would be to redirect the path from the true arm
      26     of the first conditional so that it reaches the statement *p = 5
      27     rather than i = 3.  */
      28  
      29  /* { dg-final { scan-tree-dump-times "i = 5" 1 "optimized" { xfail *-*-* }} } */
      30  /* { dg-final { scan-tree-dump-times "<L.*>:;\[\n\t \]*\\*p = 5" 1 "optimized" { xfail *-*-*}} } */
      31  
      32