• via Digitalmars-d-bugs (30/30) Sep 30 2015 https://issues.dlang.org/show_bug.cgi?id=15130

via Digitalmars-d-bugs <digitalmars-d-bugs puremagic.com> writes:

https://issues.dlang.org/show_bug.cgi?id=15130

          Issue ID: 15130
           Summary: dmd emits huge data for zero initialized struct
           Product: D
           Version: D2
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: code dawg.eu

cat > bug.d << CODE
struct Buffer
{
    ubyte[64*1024] bytes;
}
CODE

dmd -c bug
nm -S bug.o
----
0000000000000000 0000000000000088 V _D21TypeInfo_S3bug6Buffer6__initZ
0000000000000010 000000000000000c R _D3bug12__ModuleInfoZ
0000000000000000 0000000000010000 B _D3bug6Buffer6__initZ
----

The _D3bug6Buffer6__initZ is referenced by the typeinfo, but it should be a
null array in the typeinfo instead.
https://github.com/D-Programming-Language/druntime/blob/1f957372e5dadb92ab1d621d68232dbf8a2dbccf/src/object.d#L2682

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