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Avoid building LLVM just for llvm-dwp #81594

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Merged
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Feb 1, 2021
Merged

Avoid building LLVM just for llvm-dwp #81594

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6 changes: 4 additions & 2 deletions src/bootstrap/compile.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1050,8 +1050,10 @@ impl Step for Assemble {
builder.copy(&lld_install.join("bin").join(&src_exe), &libdir_bin.join(&dst_exe));
}

// Similarly, copy `llvm-dwp` into libdir for Split DWARF.
{
// Similarly, copy `llvm-dwp` into libdir for Split DWARF. Only copy it when the LLVM
// backend is used to avoid unnecessarily building LLVM and because LLVM is not checked
// out by default when the LLVM backend is not enabled.
if builder.config.rust_codegen_backends.contains(&INTERNER.intern_str("llvm")) {
let src_exe = exe("llvm-dwp", target_compiler.host);
let dst_exe = exe("rust-llvm-dwp", target_compiler.host);
let llvm_config_bin = builder.ensure(native::Llvm { target: target_compiler.host });
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