[Issue 11821] dmd backend: redundant x86 instruction in a simple loop

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=11821


Maxim Fomin <maxim at maxim-fomin.ru> changed:

           What    |Removed                     |Added
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                 CC|                            |maxim at maxim-fomin.ru


--- Comment #4 from Maxim Fomin <maxim at maxim-fomin.ru> 2013-12-26 08:08:29 PST ---
This may be remainders from internally created variables. Compiler often
rewrites high-level constructions to lower ones with implicitly introducing new
variables. What you see from asm is their usage. 

By the way, it is not a 'code generation bug', it is poor optimization.

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