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Add target-feature neon #4010

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Add target-feature neon #4010

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24c3bbf
add target-feature neon
thanhnguyen-aws Apr 11, 2025
5d1830a
add flags
thanhnguyen-aws Apr 11, 2025
2ae5df7
Merge branch 'main' into fixneon
remi-delmas-3000 Apr 23, 2025
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1 change: 1 addition & 0 deletions kani-driver/src/call_cargo.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -466,6 +466,7 @@ pub fn cargo_config_args() -> Vec<OsString> {
// Propagate `--cfg=kani_host` to build scripts.
"-Zhost-config",
"-Ztarget-applies-to-host",
"-Ctarget-feature=+neon",
"--config=host.rustflags=[\"--cfg=kani_host\"]",
]
.map(OsString::from)
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3 changes: 3 additions & 0 deletions kani-driver/src/call_single_file.rs
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Expand Up @@ -182,6 +182,7 @@ impl KaniSession {
"--check-cfg=cfg(kani)",
// Do not invoke the linker since the compiler will not generate real object files
"-Clinker=echo",
"-Ctarget-feature=+neon",
]
.map(OsString::from),
);
Expand Down Expand Up @@ -230,6 +231,8 @@ pub fn base_rustc_flags(lib_config: LibConfig) -> Vec<OsString> {
"crate-attr=feature(register_tool)",
"-Z",
"crate-attr=register_tool(kanitool)",
"-C",
"target-feature=+neon",
]
.map(OsString::from)
.to_vec();
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10 changes: 8 additions & 2 deletions tools/build-kani/src/sysroot.rs
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Expand Up @@ -85,7 +85,11 @@ pub fn build_lib(bin_folder: &Path) -> Result<()> {
fn build_verification_lib(compiler_path: &Path) -> Result<()> {
let extra_args =
["-Z", "build-std=panic_abort,std,test", "--config", "profile.dev.panic=\"abort\""];
let compiler_args = ["--kani-compiler", "-Cllvm-args=--ignore-global-asm --build-std"];
let compiler_args = [
"--kani-compiler",
"-Cllvm-args=--ignore-global-asm --build-std",
"-Ctarget-feature=+neon",
];
let packages = ["std", "kani", "kani_macros"];
let artifacts = build_kani_lib(compiler_path, &packages, &extra_args, &compiler_args)?;
copy_artifacts(&artifacts, &kani_sysroot_lib(), true)
Expand All @@ -97,7 +101,8 @@ fn build_playback_lib(compiler_path: &Path) -> Result<()> {
let extra_args =
["--features=std/concrete_playback,kani/concrete_playback", "-Z", "build-std=std,test"];
let packages = ["std", "kani", "kani_macros"];
let artifacts = build_kani_lib(compiler_path, &packages, &extra_args, &[])?;
let artifacts =
build_kani_lib(compiler_path, &packages, &extra_args, &["-Ctarget-feature=+neon"])?;
copy_artifacts(&artifacts, &kani_playback_lib(), true)
}

Expand Down Expand Up @@ -278,6 +283,7 @@ pub fn build_bin<T: AsRef<OsStr>>(extra_args: &[T]) -> Result<PathBuf> {
.arg("build")
.args(extra_args)
.args(args)
.env("CARGO_ENCODED_RUSTFLAGS", "-Ctarget-feature=+neon")
.run()
.or(Err(format_err!("Failed to build binaries.")))?;
Ok(out_dir)
Expand Down
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