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On 11/23/2011 2:18 AM, Ruben Van Boxem wrote:
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<div>[snip]<br>
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<div>Should runtime libraries be installed as archives? .o
files? .so files? (gasp) bitcode? Some mixture of these?
What mixture, and how do we decide? I lean toward .o
files as bitcode where the linker supports it, normal .o
files where it supports those, and .a files only as a
fallback. Not very confident of these preferences
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libraries -> .a/so files... They're target specific
anyways, why even consider bitcode?<br>
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Bitcode libraries allow their code to be inter-procedurally
optimized by libLTO. For example, we used to compile libstdc++ in
llvm-gcc to bitcode; this allowed us to inline C++ standard library
functions into the main program and perform optimizations such as
dead code elimination, inter-procedural constant propagation, etc,
etc.<br>
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-- John T.<br>
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Ruben<br>
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