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move enzyme flags from general cargo to rustc-specific cargo #130648

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merged 1 commit into from
Sep 22, 2024
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move enzyme flags from general cargo to rustc-specific cargo #130648

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4 changes: 4 additions & 0 deletions src/bootstrap/src/core/build_steps/compile.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1057,6 +1057,10 @@ pub fn rustc_cargo(
// killed, rather than having an error bubble up and cause a panic.
cargo.rustflag("-Zon-broken-pipe=kill");

if builder.config.llvm_enzyme {
cargo.rustflag("-l").rustflag("Enzyme-19");
}

// We currently don't support cross-crate LTO in stage0. This also isn't hugely necessary
// and may just be a time sink.
if compiler.stage != 0 {
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6 changes: 0 additions & 6 deletions src/bootstrap/src/core/builder.rs
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Expand Up @@ -1591,12 +1591,6 @@ impl<'a> Builder<'a> {
rustflags.arg(sysroot_str);
}

// https://rust-lang.zulipchat.com/#narrow/stream/182449-t-compiler.2Fhelp/topic/.E2.9C.94.20link.20new.20library.20into.20stage1.2Frustc
if self.config.llvm_enzyme {
rustflags.arg("-l");
rustflags.arg("Enzyme-19");
}

let use_new_symbol_mangling = match self.config.rust_new_symbol_mangling {
Some(setting) => {
// If an explicit setting is given, use that
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