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Avoid no-op unlink+link dances in incr comp

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This commit is contained in:
Ben Kimock 2024-07-28 16:54:14 -04:00
parent 9af8985e05
commit cae7c76d50
6 changed files with 50 additions and 21 deletions
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8
compiler/rustc_codegen_cranelift/src/driver/aot.rs
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@ -103,12 +103,14 @@ impl OngoingCodegen {
("o", &module_regular.object.as_ref().unwrap()),
("asm.o", &module_global_asm.object.as_ref().unwrap()),
],
&[],
)
} else {
rustc_incremental::copy_cgu_workproduct_to_incr_comp_cache_dir(
sess,
&module_regular.name,
&[("o", &module_regular.object.as_ref().unwrap())],
&[],
)
};
if let Some((work_product_id, work_product)) = work_product {
@ -381,6 +383,7 @@ fn emit_cgu(
bytecode: None,
assembly: None,
llvm_ir: None,
links_from_incr_cache: Vec::new(),
}),
existing_work_product: None,
})
@ -437,6 +440,7 @@ fn emit_module(
bytecode: None,
assembly: None,
llvm_ir: None,
links_from_incr_cache: Vec::new(),
})
}
@ -487,6 +491,7 @@ fn reuse_workproduct_for_cgu(
bytecode: None,
assembly: None,
llvm_ir: None,
links_from_incr_cache: Vec::new(),
},
module_global_asm: has_global_asm.then(|| CompiledModule {
name: cgu.name().to_string(),
@ -496,6 +501,7 @@ fn reuse_workproduct_for_cgu(
bytecode: None,
assembly: None,
llvm_ir: None,
links_from_incr_cache: Vec::new(),
}),
existing_work_product: Some((cgu.work_product_id(), work_product)),
})
@ -637,6 +643,7 @@ fn emit_metadata_module(tcx: TyCtxt<'_>, metadata: &EncodedMetadata) -> Compiled
bytecode: None,
assembly: None,
llvm_ir: None,
links_from_incr_cache: Vec::new(),
}
}
@ -745,7 +752,6 @@ pub(crate) fn run_aot(
let metadata_module =
if need_metadata_module { Some(emit_metadata_module(tcx, &metadata)) } else { None };
Box::new(OngoingCodegen {
modules,
allocator_module,