Files
wasmtime/lib/cretonne/src/isa/riscv/settings.rs
Dan Gohman 2b3df1a506 Add use declarations for std features.
Merge the `use` parts of the `no_std` branch. This reduces the diffs
between master and the `no_std` branch, making it easier to maintain.

Most of these changes are derived from patches by @lachlansneff in
https://github.com/Cretonne/cretonne/tree/no_std.
2018-03-20 14:07:05 -07:00

55 lines
1.7 KiB
Rust

//! RISC-V Settings.
use settings::{self, detail, Builder};
use std::fmt;
// Include code generated by `lib/cretonne/meta/gen_settings.py`. This file contains a public
// `Flags` struct with an impl for all of the settings defined in
// `lib/cretonne/meta/isa/riscv/settings.py`.
include!(concat!(env!("OUT_DIR"), "/settings-riscv.rs"));
#[cfg(test)]
mod tests {
use super::{builder, Flags};
use settings::{self, Configurable};
use std::string::ToString;
#[test]
fn display_default() {
let shared = settings::Flags::new(&settings::builder());
let b = builder();
let f = Flags::new(&shared, &b);
assert_eq!(
f.to_string(),
"[riscv]\n\
supports_m = false\n\
supports_a = false\n\
supports_f = false\n\
supports_d = false\n\
enable_m = true\n\
enable_e = false\n"
);
// Predicates are not part of the Display output.
assert_eq!(f.full_float(), false);
}
#[test]
fn predicates() {
let shared = settings::Flags::new(&settings::builder());
let mut b = builder();
b.enable("supports_f").unwrap();
b.enable("supports_d").unwrap();
let f = Flags::new(&shared, &b);
assert_eq!(f.full_float(), true);
let mut sb = settings::builder();
sb.set("enable_simd", "false").unwrap();
let shared = settings::Flags::new(&sb);
let mut b = builder();
b.enable("supports_f").unwrap();
b.enable("supports_d").unwrap();
let f = Flags::new(&shared, &b);
assert_eq!(f.full_float(), false);
}
}