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ThinLTO is a Link Time Opimization strategy, where the inlining step operates on LLVM intermediate code, and is sharded across multiple compiler invocations, so they can be parallelized. For more information, see http://llvm.org/devmtg/2015-04/slides/ThinLTO_EuroLLVM2015.pdf
Using this features requires an experimental LLVM toolchain, with the following stanza in CROSSTOOL
feature {
name: "thin_lto"
flag_set {
action: "c-compile"
action: "c++-compile"
flag_group {
flag: "-Xclang-only=-Wno-inconsistent-missing-override"
flag: "-flto"
flag: "-O2"
}
}
}
--
MOS_MIGRATED_REVID=100269776
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