rust/src/librustc_platform_intrinsics/nvptx.rs
Jorge Aparicio 18d49288d5 PTX support
- `--emit=asm --target=nvptx64-nvidia-cuda` can be used to turn a crate
  into a PTX module (a `.s` file).

- intrinsics like `__syncthreads` and `blockIdx.x` are exposed as
  `"platform-intrinsics"`.

- "cabi" has been implemented for the nvptx and nvptx64 architectures.
  i.e. `extern "C"` works.

- a new ABI, `"ptx-kernel"`. That can be used to generate "global"
  functions. Example: `extern "ptx-kernel" fn kernel() { .. }`. All
  other functions are "device" functions.
2016-12-26 21:06:23 -05:00

93 lines
3.7 KiB
Rust

// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// DO NOT EDIT: autogenerated by etc/platform-intrinsics/generator.py
// ignore-tidy-linelength
#![allow(unused_imports)]
use {Intrinsic, Type};
use IntrinsicDef::Named;
// The default inlining settings trigger a pathological behaviour in
// LLVM, which causes makes compilation very slow. See #28273.
#[inline(never)]
pub fn find(name: &str) -> Option<Intrinsic> {
if !name.starts_with("nvptx") { return None }
Some(match &name["nvptx".len()..] {
"_syncthreads" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::VOID,
definition: Named("llvm.cuda.syncthreads")
},
"_block_dim_x" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.ntid.x")
},
"_block_dim_y" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.ntid.y")
},
"_block_dim_z" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.ntid.z")
},
"_block_idx_x" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.ctaid.x")
},
"_block_idx_y" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.ctaid.y")
},
"_block_idx_z" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.ctaid.z")
},
"_grid_dim_x" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.nctaid.x")
},
"_grid_dim_y" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.nctaid.y")
},
"_grid_dim_z" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.nctaid.z")
},
"_thread_idx_x" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.tid.x")
},
"_thread_idx_y" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.tid.y")
},
"_thread_idx_z" => Intrinsic {
inputs: { static INPUTS: [&'static Type; 0] = []; &INPUTS },
output: &::I32,
definition: Named("llvm.nvvm.read.ptx.sreg.tid.z")
},
_ => return None,
})
}