[Issue 10226] core.simd bad codegen

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10226



--- Comment #6 from Benjamin Thaut <code at benjamin-thaut.de> 2013-06-03 10:07:12 PDT ---
Reducing alignment on all allocations to 8 byte is not a good idea. When I said
recent processors I meant i7 ivy bridge. On older processors this still has a
significant performance impact. Initially the manual load and store operation
were unaligned, but as of this bug
http://d.puremagic.com/issues/show_bug.cgi?id=10225
I had to replace them with aligned loads and stores for the time beeing. But
this doesn't help that when the unaligned store gets fixed, the generated code
will be equally bad as when using aligned operations.

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