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Jacob Pratt
560cc23c95
Pass Session to optimize_and_codegen_fat_lto This is necessary to fix incremental LTO in cg_gcc as well as to do some LTO refactorings I want to do. The actual fix for cg_gcc will be done on the cg_gcc repo to test it in CI.
The codegen crate contains the code to convert from MIR into LLVM IR,
and then from LLVM IR into machine code. In general it contains code
that runs towards the end of the compilation process.
For more information about how codegen works, see the rustc dev guide.