http://d.puremagic.com/issues/show_bug.cgi?id=10323
Summary: getAMDcacheinfo needlessly allocates
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: minor
Priority: P2
Component: druntime
AssignedTo: [email protected]
ReportedBy: [email protected]
--- Comment #0 from Adam D. Ruppe <[email protected]> 2013-06-10
11:55:55 PDT ---
src/druntime/src/core/cpuid.d line 544:
immutable ubyte [] assocmap = [ 0, 1, 2, 0, 4, 0, 8, 0, 16, 0, 32, 48,
64, 96, 128, 0xFF ];
The real problem here is that a array initializer allocates, even if all the
data is static, and the compiler should probably be fixed, but in the mean time
I think we should go ahead and kill as many allocations as possible from
druntime, and this is one of them.
In my experimentation, I found just sticking "static" in front of this line
solved the immediate problem.
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