Alex Crichton 39b5ec91ae
Reorganize and refactor source tree (#324)
With RFC 2325 looking close to being accepted, I took a crack at
reorganizing this repository to being more amenable for inclusion in
libstd/libcore. My current plan is to add stdsimd as a submodule in
rust-lang/rust and then use `#[path]` to include the modules directly
into libstd/libcore.

Before this commit, however, the source code of coresimd/stdsimd
themselves were not quite ready for this. Imports wouldn't compile for
one reason or another, and the organization was also different than the
RFC itself!

In addition to moving a lot of files around, this commit has the
following major changes:

* The `cfg_feature_enabled!` macro is now renamed to
  `is_target_feature_detected!`
* The `vendor` module is now called `arch`.
* Under the `arch` module is a suite of modules like `x86`, `x86_64`,
  etc. One per `cfg!(target_arch)`.
* The `is_target_feature_detected!` macro was removed from coresimd.
  Unfortunately libcore has no ability to export unstable macros, so for
  now all feature detection is canonicalized in stdsimd.

The `coresimd` and `stdsimd` crates have been updated to the planned
organization in RFC 2325 as well. The runtime bits saw the largest
amount of refactoring, seeing a good deal of simplification without the
core/std split.
2018-02-18 10:07:35 +09:00

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360 B
Rust

use std::env;
fn main() {
println!("cargo:rerun-if-changed=build.rs");
let opt_level = env::var("OPT_LEVEL")
.ok()
.and_then(|s| s.parse().ok())
.unwrap_or(0);
let profile = env::var("PROFILE").unwrap_or(String::new());
if profile == "release" || opt_level >= 2 {
println!("cargo:rustc-cfg=optimized");
}
}