Add TargetIsa::map_dwarf_register; fixes #1471

This exposes the functionality of `fde::map_reg` on the `TargetIsa` trait, avoiding compilation errors on architectures where register mapping is not yet supported. The change is conditially compiled under the `unwind` feature.
2020-04-08 14:17:59 -07:00
parent c4e90f729c
commit 6fd0451bc3
7 changed files with 39 additions and 28 deletions
--- a/crates/environ/src/data_structures.rs
+++ b/crates/environ/src/data_structures.rs
@@ -14,9 +14,6 @@ pub mod settings {

 pub mod isa {
    pub use cranelift_codegen::isa::{CallConv, RegUnit, TargetFrontendConfig, TargetIsa};
-    pub mod fde {
-        pub use cranelift_codegen::isa::fde::map_reg;
-    }
 }

 pub mod entity {