1  #include "analyzer-decls.h"
       2  
       3  void test(int n)
       4  {
       5    int i;
       6  
       7    __analyzer_dump_exploded_nodes (0); /* { dg-warning "1 processed enode" } */
       8  
       9    for (i = n; i > 0; i--) {
      10        __analyzer_eval (i > 0); /* { dg-warning "TRUE" "true" } */
      11        /* { dg-bogus "UNKNOWN" "unknown" { xfail *-*-* } .-1 } */
      12        /* TODO(xfail^^^): should report TRUE twice. */
      13  
      14        __analyzer_eval (i == n); /* { dg-warning "TRUE" "1st" } */
      15        /* { dg-warning "FALSE" "2nd" { xfail *-*-* } .-1 } */
      16        /* { dg-warning "UNKNOWN" "status quo" { target *-*-* } .-2 } */
      17        /* TODO(xfail^^^): ideally we ought to figure out i > 0 after 1st iteration.  */
      18  
      19        __analyzer_eval (i <= n); /* { dg-warning "TRUE" "1st" } */
      20        /* { dg-warning "TRUE" "2nd" { xfail *-*-* } } */
      21        /* { dg-warning "UNKNOWN" "status quo" { target *-*-* } .-2 } */
      22        /* TODO(xfail^^^): ideally we ought to figure out i >= 0 for all iterations.  */
      23  
      24        __analyzer_dump_exploded_nodes (0); /* { dg-warning "2 processed enodes" } */
      25    }
      26  
      27    __analyzer_eval (i <= 0); /* { dg-warning "TRUE" "true" } */
      28  
      29  
      30    __analyzer_eval (i == 0); /* { dg-warning "TRUE" "desired" { xfail *-*-* } } */
      31    /* { dg-warning "UNKNOWN" "status quo" { target *-*-* } .-1 } */
      32    /* TODO(xfail^^^): it only figures out i >= 256, rather than i == 256.  */
      33  
      34    __analyzer_dump_exploded_nodes (0); /* { dg-warning "1 processed enode" } */
      35  }