Rollup merge of #136611 - Zalathar:llvm-underscore, r=workingjubilee

cg_llvm: Remove the `mod llvm_` hack, which should no longer be necessary

This re-export was introduced in https://github.com/rust-lang/rust/commit/c76fc3d804600bc4f19382576aa53269a1ec095b, as a workaround for #53912.

In short, there was/is an assumption in some LLVM LTO code that symbol names would not contain `.llvm.`, but legacy symbol mangling would naturally produce that sequence for symbols in a module named `llvm`.

This was later “fixed” by adding a special case to the legacy symbol mangler in #61195, which detects the sequence `llvm` and emits the `m` in an escaped form. As a result, there should no longer be any need to avoid the module name `llvm` in the compiler itself.

(Symbol mangling v0 avoids this problem by not using `.` in the first place, outside of the “vendor-specific suffix”.)

1 files changed, 0 insertions, 4 deletions

diff --git a/compiler/rustc_codegen_llvm/src/llvm/mod.rs b/compiler/rustc_codegen_llvm/src/llvm/mod.rs
index 2592a7df95c..707aeba22cc 100644
--- a/compiler/rustc_codegen_llvm/src/llvm/mod.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm/mod.rs
@@ -10,13 +10,9 @@ use libc::c_uint;
 use rustc_abi::{Align, Size, WrappingRange};
 use rustc_llvm::RustString;
 
-pub use self::AtomicRmwBinOp::*;
 pub use self::CallConv::*;
 pub use self::CodeGenOptSize::*;
-pub use self::IntPredicate::*;
-pub use self::Linkage::*;
 pub use self::MetadataType::*;
-pub use self::RealPredicate::*;
 pub use self::ffi::*;
 use crate::common::AsCCharPtr;