[Issue 24553] New: all 0 struct initializer with float is still stored in data section

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=24553

          Issue ID: 24553
           Summary: all 0 struct initializer with float is still stored in
                    data section
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Keywords: backend
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nob...@puremagic.com
          Reporter: schvei...@gmail.com

Consider these structs:

```d
struct A {
   int[10000] x;
}

struct B {
   float[10000] x;
}

struct C {
   float[10000] x = 0;
}

struct D {
   char[10000] x = 0;
}
```

A and D do not store any static data in the binary, because they are
zero-initialized types (char.init is non-zero, but the assignment sets it to
0).

B obviously must store static data because float.init is NaN.

But C still stores static data (10000 32-bit 0s). This should not happen.

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