Yuta Saito 20bc0af42b [LTO] Support LLVM LTO for IRGen and frontend ...

This commit adds -lto flag for frontend to enable LTO at LLVM level.
When -lto=llvm given, compiler emits LLVM bitcode file instead of object
file and adds index summary for LTO.
In addition for ELF format, emit llvm.dependent-libraries section to
embed auto linking information

2020-07-01 23:30:58 +00:00

71 KiB

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