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Pass tune-cpu to LLVM

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I think this is how it should work...
This commit is contained in:
Mingye Wang 2020-09-17 17:39:26 +08:00 • committed by Mingye Wang
parent 285fc7d704
commit a35a93f09c
9 changed files with 80 additions and 8 deletions
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compiler/rustc_codegen_ssa/src/traits/backend.rs
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@ -116,4 +116,5 @@ pub trait ExtraBackendMethods: CodegenBackend + WriteBackendMethods + Sized + Se
opt_level: config::OptLevel,
) -> Arc<dyn Fn() -> Result<Self::TargetMachine, String> + Send + Sync>;
fn target_cpu<'b>(&self, sess: &'b Session) -> &'b str;
fn tune_cpu<'b>(&self, sess: &'b Session) -> Option<&'b str>;
}