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Make -Cpasses= only apply to pre-link optimization

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This change causes passes specified in -Cpasses= to be applied
only during pre-link optimization, not during LTO. This avoids
such passes running multiple times, which they may not be
designed for.

Fixes https://github.com/rust-lang/rust/issues/97713
This commit is contained in:
Bob Haarman 2022-06-10 11:53:25 -07:00
parent ec55c61305
commit 6738434de3
1 changed files with 1 additions and 1 deletions
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2
compiler/rustc_codegen_llvm/src/back/write.rs
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@ -467,7 +467,7 @@ pub(crate) unsafe fn optimize_with_new_llvm_pass_manager(
let llvm_selfprofiler =
llvm_profiler.as_mut().map(|s| s as *mut _ as *mut c_void).unwrap_or(std::ptr::null_mut());
let extra_passes = config.passes.join(",");
let extra_passes = if !is_lto { config.passes.join(",") } else { "".to_string() };
let llvm_plugins = config.llvm_plugins.join(",");