struct foo {
  int opEquals(foo x) {
    return this.normalize === x.normalize;
  }
  foo normalize() {
    foo res;
    return res;
  }
}
int main() {
  return 0;
}

The above example produces on windows dmd-0.114:

Internal error: ..\ztc\cgcs.c 353

It compiles if instead of using the normalize function the body of opEquals
is
return *this === x;
so it looks like the return values from the functions are confusing the ===
operator. It doesn't matter if foo has any data members.

Ben Hinkle wrote:

| struct foo {
|   int opEquals(foo x) {
|     return this.normalize === x.normalize;
|   }
|   foo normalize() {
|     foo res;
|     return res;
|   }
| }
| int main() {
|   return 0;
| }
|
| The above example produces on windows dmd-0.114:
|
| Internal error: ..\ztc\cgcs.c 353
|
| It compiles if instead of using the normalize function the body of
| opEquals is
| return *this === x;
| so it looks like the return values from the functions are confusing
| the ===  operator. It doesn't matter if foo has any data members.

Added to DStress as
http://dstress.kuehne.cn/run/bug_cgcs_353_C.d

Thomas