1 files changed, 17 insertions, 34 deletions

diff --git a/compiler/rustc_codegen_cranelift/build_system/utils.rs b/compiler/rustc_codegen_cranelift/build_system/utils.rs
index abc5bab49..41fc366e2 100644
--- a/compiler/rustc_codegen_cranelift/build_system/utils.rs
+++ b/compiler/rustc_codegen_cranelift/build_system/utils.rs
@@ -5,7 +5,6 @@ use std::path::{Path, PathBuf};
 use std::process::{self, Command, Stdio};
 
 use super::path::{Dirs, RelPath};
-use super::rustc_info::{get_cargo_path, get_rustc_path, get_rustdoc_path};
 
 #[derive(Clone, Debug)]
 pub(crate) struct Compiler {
@@ -19,18 +18,6 @@ pub(crate) struct Compiler {
 }
 
 impl Compiler {
-    pub(crate) fn bootstrap_with_triple(triple: String) -> Compiler {
-        Compiler {
-            cargo: get_cargo_path(),
-            rustc: get_rustc_path(),
-            rustdoc: get_rustdoc_path(),
-            rustflags: String::new(),
-            rustdocflags: String::new(),
-            triple,
-            runner: vec![],
-        }
-    }
-
     pub(crate) fn set_cross_linker_and_runner(&mut self) {
         match self.triple.as_str() {
             "aarch64-unknown-linux-gnu" => {
@@ -95,7 +82,11 @@ impl CargoProject {
             .arg(self.manifest_path(dirs))
             .arg("--target-dir")
             .arg(self.target_dir(dirs))
-            .arg("--frozen");
+            .arg("--locked");
+
+        if dirs.frozen {
+            cmd.arg("--frozen");
+        }
 
         cmd
     }
@@ -120,23 +111,6 @@ impl CargoProject {
         cmd
     }
 
-    #[must_use]
-    pub(crate) fn fetch(
-        &self,
-        cargo: impl AsRef<Path>,
-        rustc: impl AsRef<Path>,
-        dirs: &Dirs,
-    ) -> Command {
-        let mut cmd = Command::new(cargo.as_ref());
-
-        cmd.env("RUSTC", rustc.as_ref())
-            .arg("fetch")
-            .arg("--manifest-path")
-            .arg(self.manifest_path(dirs));
-
-        cmd
-    }
-
     pub(crate) fn clean(&self, dirs: &Dirs) {
         let _ = fs::remove_dir_all(self.target_dir(dirs));
     }
@@ -162,8 +136,7 @@ pub(crate) fn hyperfine_command(
     warmup: u64,
     runs: u64,
     prepare: Option<&str>,
-    a: &str,
-    b: &str,
+    cmds: &[&str],
 ) -> Command {
     let mut bench = Command::new("hyperfine");
 
@@ -179,7 +152,7 @@ pub(crate) fn hyperfine_command(
         bench.arg("--prepare").arg(prepare);
     }
 
-    bench.arg(a).arg(b);
+    bench.args(cmds);
 
     bench
 }
@@ -285,3 +258,13 @@ pub(crate) fn is_ci() -> bool {
 pub(crate) fn is_ci_opt() -> bool {
     env::var("CI_OPT").is_ok()
 }
+
+pub(crate) fn maybe_incremental(cmd: &mut Command) {
+    if is_ci() || std::env::var("CARGO_BUILD_INCREMENTAL").map_or(false, |val| val == "false") {
+        // Disabling incr comp reduces cache size and incr comp doesn't save as much on CI anyway
+        cmd.env("CARGO_BUILD_INCREMENTAL", "false");
+    } else {
+        // Force incr comp even in release mode unless in CI or incremental builds are explicitly disabled
+        cmd.env("CARGO_BUILD_INCREMENTAL", "true");
+    }
+}