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Rollup merge of #75094 - 0dvictor:cgu, r=oli-obk

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Add `-Z combine_cgu` flag

Introduce a compiler option to let rustc combines all regular CGUs into a single one at the end of compilation.

Part of Issue #64191
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Tyler Mandry 2020-09-09 15:05:43 -07:00 • committed by GitHub
commit 07dbe49ce9
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6 changed files with 90 additions and 15 deletions
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compiler/rustc_session/src/options.rs
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@ -850,6 +850,8 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
"enable the experimental Chalk-based trait solving engine"),
codegen_backend: Option<String> = (None, parse_opt_string, [TRACKED],
"the backend to use"),
combine_cgu: bool = (false, parse_bool, [TRACKED],
"combine CGUs into a single one"),
crate_attr: Vec<String> = (Vec::new(), parse_string_push, [TRACKED],
"inject the given attribute in the crate"),
debug_macros: bool = (false, parse_bool, [TRACKED],