| use crate::spec::{LinkerFlavor, Target, TargetOptions, TargetResult, PanicStrategy, MergeFunctions}; |
| use crate::spec::abi::Abi; |
| |
| pub fn target() -> TargetResult { |
| Ok(Target { |
| arch: "nvptx64".to_string(), |
| data_layout: "e-i64:64-i128:128-v16:16-v32:32-n16:32:64".to_string(), |
| llvm_target: "nvptx64-nvidia-cuda".to_string(), |
| |
| target_os: "cuda".to_string(), |
| target_vendor: "nvidia".to_string(), |
| target_env: String::new(), |
| |
| linker_flavor: LinkerFlavor::PtxLinker, |
| |
| target_endian: "little".to_string(), |
| target_pointer_width: "64".to_string(), |
| target_c_int_width: "32".to_string(), |
| |
| options: TargetOptions { |
| // The linker can be installed from `crates.io`. |
| linker: Some("rust-ptx-linker".to_string()), |
| |
| // With `ptx-linker` approach, it can be later overriden via link flags. |
| cpu: "sm_30".to_string(), |
| |
| // FIXME: create tests for the atomics. |
| max_atomic_width: Some(64), |
| |
| // Unwinding on CUDA is neither feasible nor useful. |
| panic_strategy: PanicStrategy::Abort, |
| |
| // Needed to use `dylib` and `bin` crate types and the linker. |
| dynamic_linking: true, |
| executables: true, |
| |
| // Avoid using dylib because it contain metadata not supported |
| // by LLVM NVPTX backend. |
| only_cdylib: true, |
| |
| // Let the `ptx-linker` to handle LLVM lowering into MC / assembly. |
| obj_is_bitcode: true, |
| |
| // Convinient and predicable naming scheme. |
| dll_prefix: "".to_string(), |
| dll_suffix: ".ptx".to_string(), |
| exe_suffix: ".ptx".to_string(), |
| |
| // Disable MergeFunctions LLVM optimisation pass because it can |
| // produce kernel functions that call other kernel functions. |
| // This behavior is not supported by PTX ISA. |
| merge_functions: MergeFunctions::Disabled, |
| |
| // FIXME: enable compilation tests for the target and |
| // create the tests for this. |
| abi_blacklist: vec![ |
| Abi::Cdecl, |
| Abi::Stdcall, |
| Abi::Fastcall, |
| Abi::Vectorcall, |
| Abi::Thiscall, |
| Abi::Aapcs, |
| Abi::Win64, |
| Abi::SysV64, |
| Abi::Msp430Interrupt, |
| Abi::X86Interrupt, |
| Abi::AmdGpuKernel, |
| ], |
| |
| .. Default::default() |
| }, |
| }) |
| } |