[Issue 11435] -O optimization flag causes invalid 32 bit codegen

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=11435

--- Comment #13 from Walter Bright <bugzilla at digitalmars.com> ---
(In reply to safety0ff.bugz from comment #8)
> I managed to work around this issue by modifying the following code from
> src/backend/cod1.c: (line ~3573)

This code indeed is wrong. Will fix.

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