| From 6738434de3e4dacedeb330a5cf878e0a196be864 Mon Sep 17 00:00:00 2001 |
| From: Bob Haarman <rust@inglorion.net> |
| Date: Fri, 10 Jun 2022 11:53:25 -0700 |
| Subject: [PATCH] Make -Cpasses= only apply to pre-link optimization |
| |
| 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 |
| --- |
| compiler/rustc_codegen_llvm/src/back/write.rs | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs |
| index 99e30531c22..f456408ca3a 100644 |
| --- a/compiler/rustc_codegen_llvm/src/back/write.rs |
| +++ b/compiler/rustc_codegen_llvm/src/back/write.rs |
| @@ -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(","); |
| |
| -- |
| 2.36.1.476.g0c4daa206d-goog |
| |
