[Issue 8340] *= operator breaks long array in x64

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=8340



--- Comment #2 from hsteoh at quickfur.ath.cx 2012-11-08 21:21:22 PST ---
Hmm, looks like a dmd backend bug: gdc (unoptimized) produces neg (respectively
negl) instructions for negating the array element of ia (resp. la), but dmd
-m64 produces negl (resp. negq) instead.

This produces correct results for la, because dmd actually generates it as a
quad array, whereas ia remains an int array. This is a violation of the D spec
(which states that int==32 bits and long==64 bits; seems like the dmd backend
is wrongly using int==32 bits and long==128 bits (inconsistently).

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