Build the sysroot and run more tests

.github/workflows/gcc12.yml

@@ -11,6 +11,9 @@ env:
   # Enable backtraces for easier debugging
   RUST_BACKTRACE: 1
   TEST_FLAGS: "-Cpanic=abort -Zpanic-abort-tests"
+  # FIXME(antoyo): we need to set GCC_EXEC_PREFIX so that the linker can find the linker plugin.
+  # Not sure why it's not found otherwise.
+  GCC_EXEC_PREFIX: /usr/lib/gcc/
 
 jobs:
   build:
@@ -22,15 +25,16 @@ jobs:
         commands: [
           "--mini-tests",
           # TODO(antoyo): re-enable those commands when the build with libgccjit 12 is fixed.
-          #"--std-tests",
+          "--std-tests",
           # FIXME: re-enable asm tests when GCC can emit in the right syntax.
           # "--asm-tests",
-          #"--test-libcore",
-          #"--extended-rand-tests",
-          #"--extended-regex-example-tests",
-          #"--extended-regex-tests",
-          #"--test-successful-rustc --nb-parts 2 --current-part 0",
-          #"--test-successful-rustc --nb-parts 2 --current-part 1",
+          "--test-libcore",
+          "--extended-rand-tests",
+          "--extended-regex-example-tests",
+          "--extended-regex-tests",
+          "--test-successful-rustc --nb-parts 2 --current-part 0",
+          "--test-successful-rustc --nb-parts 2 --current-part 1",
+          # TODO: move to failures.yml.
           #"--test-failing-rustc",
         ]
 
@@ -94,10 +98,8 @@ jobs:
     - name: Build
       run: |
         ./y.sh prepare --only-libcore
-        # TODO(antoyo): build the sysroot when the build with libgccjit 12 is fixed.
-        #./y.sh build --no-default-features
-        # TODO(antoyo): run the tests when we can build the sysroot with libgccjit 12.
-        #cargo test --no-default-features
+        ./y.sh build --no-default-features --sysroot-panic-abort
+        cargo test --no-default-features
         ./clean_all.sh
 
     - name: Prepare dependencies
@@ -118,7 +120,4 @@ jobs:
 
     - name: Run tests
       run: |
-        # TODO(antoyo): add --build-sysroot when the build with libgccjit 12 is fixed.
-        # FIXME(antoyo): we need to set GCC_EXEC_PREFIX so that the linker can find the linker plugin.
-        # Not sure why it's not found otherwise.
-        GCC_EXEC_PREFIX=/usr/lib/gcc/ ./test.sh --release --clean ${{ matrix.commands }} --no-default-features
+        ./test.sh --release --clean --build-sysroot ${{ matrix.commands }} --no-default-features

build_system/src/build.rs

@@ -11,6 +11,7 @@ use std::path::Path;
 struct BuildArg {
     codegen_release_channel: bool,
     sysroot_release_channel: bool,
+    sysroot_panic_abort: bool,
     features: Vec<String>,
     gcc_path: String,
 }
@@ -32,6 +33,9 @@ impl BuildArg {
                 "--no-default-features" => {
                     build_arg.features.push("--no-default-features".to_string());
                 }
+                "--sysroot-panic-abort" => {
+                    build_arg.sysroot_panic_abort = true;
+                },
                 "--features" => {
                     if let Some(arg) = args.next() {
                         build_arg.features.push("--features".to_string());
@@ -59,6 +63,7 @@ impl BuildArg {
 
     --release              : Build codegen in release mode
     --release-sysroot      : Build sysroot in release mode
+    --sysroot-panic-abort  : Build the sysroot without unwinding support.
     --no-default-features  : Add `--no-default-features` flag
     --features [arg]       : Add a new feature [arg]
     --help                 : Show this help
@@ -69,7 +74,7 @@ impl BuildArg {
 
 fn build_sysroot(
     env: &mut HashMap<String, String>,
-    release_mode: bool,
+    args: &BuildArg,
     target_triple: &str,
 ) -> Result<(), String> {
     std::env::set_current_dir("build_sysroot")
@@ -119,15 +124,18 @@ fn build_sysroot(
     let _ = fs::remove_dir_all("sysroot");
 
     // Builds libs
-    let channel = if release_mode {
-        let rustflags = env
-            .get("RUSTFLAGS")
-            .cloned()
-            .unwrap_or_default();
-        env.insert(
-            "RUSTFLAGS".to_string(),
-            format!("{} -Zmir-opt-level=3", rustflags),
-        );
+    let mut rustflags = env
+        .get("RUSTFLAGS")
+        .cloned()
+        .unwrap_or_default();
+    if args.sysroot_panic_abort {
+        rustflags.push_str(" -Cpanic=abort -Zpanic-abort-tests");
+    }
+    env.insert(
+        "RUSTFLAGS".to_string(),
+        format!("{} -Zmir-opt-level=3", rustflags),
+    );
+    let channel = if args.sysroot_release_channel {
         run_command_with_output_and_env(
             &[
                 &"cargo",
@@ -217,7 +225,7 @@ fn build_codegen(args: &BuildArg) -> Result<(), String> {
     println!("[BUILD] sysroot");
     build_sysroot(
         &mut env,
-        args.sysroot_release_channel,
+        args,
         &config.target_triple,
     )?;
     Ok(())

src/type_.rs

@@ -228,6 +228,12 @@ impl<'gcc, 'tcx> BaseTypeMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
             }
         }*/
 
+        // NOTE: see note above. Some other test uses usize::MAX.
+        #[cfg(not(feature="master"))]
+        if len >= i32::MAX as u64 {
+            len = 0;
+        }
+
         self.context.new_array_type(None, ty, len)
     }
 }

tests/lang_tests_common.rs

@@ -1,7 +1,7 @@
 //! The common code for `tests/lang_tests_*.rs`
 use std::{
     env::{self, current_dir},
-    path::PathBuf,
+    path::{Path, PathBuf},
     process::Command,
 };
 
@@ -23,9 +23,29 @@ pub fn main_inner(profile: Profile) {
     let gcc_path = include_str!("../gcc_path");
     let gcc_path = gcc_path.trim();
     env::set_var("LD_LIBRARY_PATH", gcc_path);
+
+    fn rust_filter(filename: &Path) -> bool {
+        filename.extension().expect("extension").to_str().expect("to_str") == "rs"
+    }
+
+    #[cfg(feature="master")]
+    fn filter(filename: &Path) -> bool {
+        rust_filter(filename)
+    }
+
+    #[cfg(not(feature="master"))]
+    fn filter(filename: &Path) -> bool {
+        if let Some(filename) = filename.to_str() {
+            if filename.ends_with("gep.rs") {
+                return false;
+            }
+        }
+        rust_filter(filename)
+    }
+
     LangTester::new()
         .test_dir("tests/run")
-        .test_file_filter(|path| path.extension().expect("extension").to_str().expect("to_str") == "rs")
+        .test_file_filter(filter)
         .test_extract(|source| {
             let lines =
                 source.lines()