diff options
Diffstat (limited to 'compiler/rustc_builtin_macros')
| -rw-r--r-- | compiler/rustc_builtin_macros/Cargo.toml | 5 | ||||
| -rw-r--r-- | compiler/rustc_builtin_macros/src/autodiff.rs | 3 |
2 files changed, 7 insertions, 1 deletions
diff --git a/compiler/rustc_builtin_macros/Cargo.toml b/compiler/rustc_builtin_macros/Cargo.toml index e56b9e641a1..ce9a3ce3f24 100644 --- a/compiler/rustc_builtin_macros/Cargo.toml +++ b/compiler/rustc_builtin_macros/Cargo.toml @@ -33,3 +33,8 @@ smallvec = { version = "1.8.1", features = ["union", "may_dangle"] } thin-vec = "0.2.12" tracing = "0.1" # tidy-alphabetical-end + +[features] +# tidy-alphabetical-start +llvm_enzyme = [] +# tidy-alphabetical-end diff --git a/compiler/rustc_builtin_macros/src/autodiff.rs b/compiler/rustc_builtin_macros/src/autodiff.rs index 48d0795af5e..f4a923797e2 100644 --- a/compiler/rustc_builtin_macros/src/autodiff.rs +++ b/compiler/rustc_builtin_macros/src/autodiff.rs @@ -209,7 +209,8 @@ mod llvm_enzyme { mut item: Annotatable, mode: DiffMode, ) -> Vec<Annotatable> { - if cfg!(not(llvm_enzyme)) { + // FIXME(bjorn3) maybe have the backend directly tell if autodiff is supported? + if cfg!(not(feature = "llvm_enzyme")) { ecx.sess.dcx().emit_err(errors::AutoDiffSupportNotBuild { span: meta_item.span }); return vec![item]; } |