[Bug tree-optimization/58432] [4.9 Regression] ICE: in insert_value_copy_on_edge, at tree-outof-ssa.c:233

[markus at trippelsdorf dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58432

--- Comment #1 from Markus Trippelsdorf <markus at trippelsdorf dot de> ---
markus@x4 gcc % cat test.ii
struct {
  int prefix;
  int dir_idx;
} *a;
int b;
void fn1() {
  int *c, *d;
  for (; b; b++)
    if (d[b]) {
      c[b] = d[b];
      a[0].dir_idx = 0;
    }
}

markus@x4 gcc % /var/tmp/gcc_build_dir/./prev-gcc/xg++
-B/var/tmp/gcc_build_dir/./prev-gcc/ -c -O3 -fprofile-generate test.ii
test.ii:4:4: warning: anonymous type with no linkage used to declare variable
‘<anonymous struct>* a’ with linkage [enabled by default]
 } *a;
    ^
test.ii: In function ‘void fn1()’:
test.ii:6:6: internal compiler error: in insert_value_copy_on_edge, at
tree-outof-ssa.c:233
 void fn1() {
      ^