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Avoid unnecessary builds/rebuilds of rust-demangler #117197

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Merged
merged 2 commits into from
Oct 28, 2023
Merged

Avoid unnecessary builds/rebuilds of rust-demangler #117197

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be0d73a
Don't provide `rust-demangler` to run-make tests
Zalathar Oct 25, 2023
36c3f90
For run-coverage tests, build `rust-demangler` with the stage 0 compiler
Zalathar Oct 25, 2023
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For run-coverage tests, build rust-demangler with the stage 0 compiler 
This avoids useless rebuilds of the demangler when modifying the compiler.
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@Zalathar
Zalathar committed Oct 27, 2023
commit 36c3f90173f404b84174a19ba76a33dbfd6ad985
4 changes: 3 additions & 1 deletion src/bootstrap/src/core/build_steps/test.rs
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Expand Up @@ -1568,9 +1568,11 @@ note: if you're sure you want to do this, please open an issue as to why. In the
}

if mode == "run-coverage" {
// The demangler doesn't need the current compiler, so we can avoid
// unnecessary rebuilds by using the bootstrap compiler instead.
let rust_demangler = builder
.ensure(tool::RustDemangler {
compiler,
compiler: compiler.with_stage(0),
target: compiler.host,
extra_features: Vec::new(),
})
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