From d90934ce87352e7478f8c872a5a65363206082a0 Mon Sep 17 00:00:00 2001 From: Andreas Jonson Date: Wed, 29 Sep 2021 22:58:33 +0200 Subject: [PATCH] Fix use after drop in self-profile with llvm events --- compiler/rustc_codegen_llvm/src/back/write.rs | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs index 92199f611bad0..985640fb60e04 100644 --- a/compiler/rustc_codegen_llvm/src/back/write.rs +++ b/compiler/rustc_codegen_llvm/src/back/write.rs @@ -405,13 +405,15 @@ pub(crate) unsafe fn optimize_with_new_llvm_pass_manager( None }; - let llvm_selfprofiler = if cgcx.prof.llvm_recording_enabled() { - let mut llvm_profiler = LlvmSelfProfiler::new(cgcx.prof.get_self_profiler().unwrap()); - &mut llvm_profiler as *mut _ as *mut c_void + let mut llvm_profiler = if cgcx.prof.llvm_recording_enabled() { + Some(LlvmSelfProfiler::new(cgcx.prof.get_self_profiler().unwrap())) } else { - std::ptr::null_mut() + None }; + 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(","); // FIXME: NewPM doesn't provide a facility to pass custom InlineParams.