diff options
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/abi.rs')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/abi.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/abi.rs b/compiler/rustc_codegen_llvm/src/abi.rs index 119cd634f98..aba63d75f1d 100644 --- a/compiler/rustc_codegen_llvm/src/abi.rs +++ b/compiler/rustc_codegen_llvm/src/abi.rs @@ -649,6 +649,10 @@ impl llvm::CallConv { match conv { CanonAbi::C | CanonAbi::Rust => llvm::CCallConv, CanonAbi::RustCold => llvm::PreserveMost, + // Functions with this calling convention can only be called from assembly, but it is + // possible to declare an `extern "custom"` block, so the backend still needs a calling + // convention for declaring foreign functions. + CanonAbi::Custom => llvm::CCallConv, CanonAbi::GpuKernel => { if arch == "amdgpu" { llvm::AmdgpuKernel |