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Put all cg_clif specific options behind -Zunstable-features

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This commit is contained in:
bjorn3 2021-07-17 16:32:55 +02:00
parent 60340d44d8
commit 80b9e36709
5 changed files with 20 additions and 9 deletions
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4
docs/usage.md
View File

@ -36,7 +36,7 @@ $ $cg_clif_dir/build/cargo jit
or
```bash
$ $cg_clif_dir/build/bin/cg_clif -Cllvm-args=mode=jit -Cprefer-dynamic my_crate.rs
$ $cg_clif_dir/build/bin/cg_clif -Zunstable-features -Cllvm-args=mode=jit -Cprefer-dynamic my_crate.rs
```
There is also an experimental lazy jit mode. In this mode functions are only compiled once they are
@ -52,7 +52,7 @@ These are a few functions that allow you to easily run rust code from the shell
```bash
function jit_naked() {
echo "$@" | $cg_clif_dir/build/bin/cg_clif - -Cllvm-args=mode=jit -Cprefer-dynamic
echo "$@" | $cg_clif_dir/build/bin/cg_clif - -Zunstable-features -Cllvm-args=mode=jit -Cprefer-dynamic
}
function jit() {

12
scripts/cargo.rs
View File

@ -44,7 +44,11 @@ fn main() {
);
std::array::IntoIter::new(["rustc".to_string()])
.chain(env::args().skip(2))
.chain(["--".to_string(), "-Cllvm-args=mode=jit".to_string()])
.chain([
"--".to_string(),
"-Zunstable-features".to_string(),
"-Cllvm-args=mode=jit".to_string(),
])
.collect()
}
Some("lazy-jit") => {
@ -54,7 +58,11 @@ fn main() {
);
std::array::IntoIter::new(["rustc".to_string()])
.chain(env::args().skip(2))
.chain(["--".to_string(), "-Cllvm-args=mode=jit-lazy".to_string()])
.chain([
"--".to_string(),
"-Zunstable-features".to_string(),
"-Cllvm-args=mode=jit-lazy".to_string(),
])
.collect()
}
_ => env::args().skip(1).collect(),

2
scripts/filter_profile.rs
View File

@ -5,7 +5,7 @@ pushd $(dirname "$0")/../
source scripts/config.sh
RUSTC="$(pwd)/build/bin/cg_clif"
popd
PROFILE=$1 OUTPUT=$2 exec $RUSTC -Cllvm-args=mode=jit -Cprefer-dynamic $0
PROFILE=$1 OUTPUT=$2 exec $RUSTC -Zunstable-options -Cllvm-args=mode=jit -Cprefer-dynamic $0
#*/
//! This program filters away uninteresting samples and trims uninteresting frames for stackcollapse

8
scripts/tests.sh
View File

@ -16,10 +16,10 @@ function no_sysroot_tests() {
if [[ "$JIT_SUPPORTED" = "1" ]]; then
echo "[JIT] mini_core_hello_world"
CG_CLIF_JIT_ARGS="abc bcd" $MY_RUSTC -Cllvm-args=mode=jit -Cprefer-dynamic example/mini_core_hello_world.rs --cfg jit --target "$HOST_TRIPLE"
CG_CLIF_JIT_ARGS="abc bcd" $MY_RUSTC -Zunstable-options -Cllvm-args=mode=jit -Cprefer-dynamic example/mini_core_hello_world.rs --cfg jit --target "$HOST_TRIPLE"
echo "[JIT-lazy] mini_core_hello_world"
CG_CLIF_JIT_ARGS="abc bcd" $MY_RUSTC -Cllvm-args=mode=jit-lazy -Cprefer-dynamic example/mini_core_hello_world.rs --cfg jit --target "$HOST_TRIPLE"
CG_CLIF_JIT_ARGS="abc bcd" $MY_RUSTC -Zunstable-options -Cllvm-args=mode=jit-lazy -Cprefer-dynamic example/mini_core_hello_world.rs --cfg jit --target "$HOST_TRIPLE"
else
echo "[JIT] mini_core_hello_world (skipped)"
fi
@ -44,10 +44,10 @@ function base_sysroot_tests() {
if [[ "$JIT_SUPPORTED" = "1" ]]; then
echo "[JIT] std_example"
$MY_RUSTC -Cllvm-args=mode=jit -Cprefer-dynamic example/std_example.rs --target "$HOST_TRIPLE"
$MY_RUSTC -Zunstable-options -Cllvm-args=mode=jit -Cprefer-dynamic example/std_example.rs --target "$HOST_TRIPLE"
echo "[JIT-lazy] std_example"
$MY_RUSTC -Cllvm-args=mode=jit-lazy -Cprefer-dynamic example/std_example.rs --target "$HOST_TRIPLE"
$MY_RUSTC -Zunstable-options -Cllvm-args=mode=jit-lazy -Cprefer-dynamic example/std_example.rs --target "$HOST_TRIPLE"
else
echo "[JIT] std_example (skipped)"
fi

3
src/lib.rs
View File

@ -184,6 +184,9 @@ impl CodegenBackend for CraneliftCodegenBackend {
let config = if let Some(config) = self.config.clone() {
config
} else {
if !tcx.sess.unstable_options() && !tcx.sess.opts.cg.llvm_args.is_empty() {
tcx.sess.fatal("`-Z unstable-options` must be passed to allow configuring cg_clif");
}
BackendConfig::from_opts(&tcx.sess.opts.cg.llvm_args)
.unwrap_or_else(|err| tcx.sess.fatal(&err))
};