Merge commit 'b385428e3ddf330805241e7758e773f933357c4b' into subtree-update_cg_gcc_2024-03-05

5 files changed, 214 insertions, 41 deletions

diff --git a/compiler/rustc_codegen_gcc/tests/failing-lto-tests.txt b/compiler/rustc_codegen_gcc/tests/failing-lto-tests.txt
new file mode 100644
index 00000000000..6e1ed99c6f7
--- /dev/null
+++ b/compiler/rustc_codegen_gcc/tests/failing-lto-tests.txt
@@ -0,0 +1,32 @@
+tests/ui/lint/unsafe_code/forge_unsafe_block.rs
+tests/ui/lint/unused-qualification-in-derive-expansion.rs
+tests/ui/macros/macro-quote-test.rs
+tests/ui/macros/proc_macro.rs
+tests/ui/panic-runtime/lto-unwind.rs
+tests/ui/resolve/derive-macro-1.rs
+tests/ui/resolve/derive-macro-2.rs
+tests/ui/rfcs/rfc-2565-param-attrs/param-attrs-pretty.rs
+tests/ui/rfcs/rfc-2565-param-attrs/issue-64682-dropping-first-attrs-in-impl-fns.rs
+tests/ui/rfcs/rfc-3348-c-string-literals/edition-spans.rs
+tests/ui/rust-2018/suggestions-not-always-applicable.rs
+tests/ui/rust-2021/reserved-prefixes-via-macro.rs
+tests/ui/underscore-imports/duplicate.rs
+tests/ui/async-await/issues/issue-60674.rs
+tests/ui/attributes/main-removed-2/main.rs
+tests/ui/cfg/assume-incomplete-release/assume-incomplete.rs
+tests/ui/crate-loading/cross-compiled-proc-macro.rs
+tests/ui/derives/derive-marker-tricky.rs
+tests/ui/diagnostic_namespace/existing_proc_macros.rs
+tests/ui/fmt/format-args-capture-issue-106408.rs
+tests/ui/fmt/indoc-issue-106408.rs
+tests/ui/hygiene/issue-77523-def-site-async-await.rs
+tests/ui/inherent-impls-overlap-check/no-overlap.rs
+tests/ui/enum-discriminant/issue-46519.rs
+tests/ui/issues/issue-45731.rs
+tests/ui/lint/test-allow-dead-extern-static-no-warning.rs
+tests/ui/macros/macro-comma-behavior-rpass.rs
+tests/ui/macros/rfc-2011-nicer-assert-messages/assert-with-custom-errors-does-not-create-unnecessary-code.rs
+tests/ui/macros/rfc-2011-nicer-assert-messages/feature-gate-generic_assert.rs
+tests/ui/macros/stringify.rs
+tests/ui/reexport-test-harness-main.rs
+tests/ui/rfcs/rfc-1937-termination-trait/termination-trait-in-test.rs
diff --git a/compiler/rustc_codegen_gcc/tests/failing-non-lto-tests.txt b/compiler/rustc_codegen_gcc/tests/failing-non-lto-tests.txt
new file mode 100644
index 00000000000..384dfdc26fb
--- /dev/null
+++ b/compiler/rustc_codegen_gcc/tests/failing-non-lto-tests.txt
@@ -0,0 +1,11 @@
+tests/ui/issues/issue-44056.rs
+tests/ui/lto/fat-lto.rs
+tests/ui/lto/debuginfo-lto.rs
+tests/ui/lto/lto-many-codegen-units.rs
+tests/ui/lto/issue-100772.rs
+tests/ui/lto/lto-rustc-loads-linker-plugin.rs
+tests/ui/panic-runtime/lto-unwind.rs
+tests/ui/sanitizer/issue-111184-cfi-coroutine-witness.rs
+tests/ui/sepcomp/sepcomp-lib-lto.rs
+tests/ui/lto/lto-opt-level-s.rs
+tests/ui/lto/lto-opt-level-z.rs
diff --git a/compiler/rustc_codegen_gcc/tests/failing-ui-tests.txt b/compiler/rustc_codegen_gcc/tests/failing-ui-tests.txt
new file mode 100644
index 00000000000..d13562f8bb0
--- /dev/null
+++ b/compiler/rustc_codegen_gcc/tests/failing-ui-tests.txt
@@ -0,0 +1,76 @@
+tests/ui/allocator/no_std-alloc-error-handler-custom.rs
+tests/ui/allocator/no_std-alloc-error-handler-default.rs
+tests/ui/asm/may_unwind.rs
+tests/ui/asm/x86_64/multiple-clobber-abi.rs
+tests/ui/debuginfo/debuginfo-emit-llvm-ir-and-split-debuginfo.rs
+tests/ui/functions-closures/parallel-codegen-closures.rs
+tests/ui/linkage-attr/linkage1.rs
+tests/ui/lto/dylib-works.rs
+tests/ui/numbers-arithmetic/saturating-float-casts.rs
+tests/ui/polymorphization/promoted-function.rs
+tests/ui/sepcomp/sepcomp-cci.rs
+tests/ui/sepcomp/sepcomp-extern.rs
+tests/ui/sepcomp/sepcomp-fns-backwards.rs
+tests/ui/sepcomp/sepcomp-fns.rs
+tests/ui/sepcomp/sepcomp-statics.rs
+tests/ui/asm/x86_64/may_unwind.rs
+tests/ui/backtrace.rs
+tests/ui/catch-unwind-bang.rs
+tests/ui/cfg/cfg-panic-abort.rs
+tests/ui/drop/dynamic-drop-async.rs
+tests/ui/drop/repeat-drop.rs
+tests/ui/fmt/format-args-capture.rs
+tests/ui/coroutine/panic-drops-resume.rs
+tests/ui/coroutine/panic-drops.rs
+tests/ui/intrinsics/panic-uninitialized-zeroed.rs
+tests/ui/iterators/iter-sum-overflow-debug.rs
+tests/ui/iterators/iter-sum-overflow-overflow-checks.rs
+tests/ui/mir/mir_calls_to_shims.rs
+tests/ui/mir/mir_drop_order.rs
+tests/ui/mir/mir_let_chains_drop_order.rs
+tests/ui/oom_unwind.rs
+tests/ui/panic-runtime/abort-link-to-unwinding-crates.rs
+tests/ui/panic-runtime/abort.rs
+tests/ui/panic-runtime/link-to-abort.rs
+tests/ui/unwind-no-uwtable.rs
+tests/ui/parser/unclosed-delimiter-in-dep.rs
+tests/ui/runtime/rt-explody-panic-payloads.rs
+tests/ui/simd/intrinsic/ptr-cast.rs
+tests/ui/binding/fn-arg-incomplete-pattern-drop-order.rs
+tests/ui/consts/missing_span_in_backtrace.rs
+tests/ui/drop/dynamic-drop.rs
+tests/ui/dyn-star/box.rs
+tests/ui/issues/issue-40883.rs
+tests/ui/issues/issue-43853.rs
+tests/ui/issues/issue-47364.rs
+tests/ui/macros/rfc-2011-nicer-assert-messages/assert-without-captures-does-not-create-unnecessary-code.rs
+tests/ui/rfcs/rfc-1857-stabilize-drop-order/drop-order.rs
+tests/ui/rfcs/rfc-2091-track-caller/std-panic-locations.rs
+tests/ui/simd/issue-17170.rs
+tests/ui/simd/issue-39720.rs
+tests/ui/statics/issue-91050-1.rs
+tests/ui/statics/issue-91050-2.rs
+tests/ui/alloc-error/default-alloc-error-hook.rs
+tests/ui/coroutine/panic-safe.rs
+tests/ui/issues/issue-14875.rs
+tests/ui/issues/issue-29948.rs
+tests/ui/panics/nested_panic_caught.rs
+tests/ui/const_prop/ice-issue-111353.rs
+tests/ui/process/println-with-broken-pipe.rs
+tests/ui/panic-runtime/lto-abort.rs
+tests/ui/lto/thin-lto-inlines2.rs
+tests/ui/lto/weak-works.rs
+tests/ui/lto/thin-lto-inlines.rs
+tests/ui/lto/thin-lto-global-allocator.rs
+tests/ui/lto/msvc-imp-present.rs
+tests/ui/lto/lto-thin-rustc-loads-linker-plugin.rs
+tests/ui/lto/all-crates.rs
+tests/ui/async-await/deep-futures-are-freeze.rs
+tests/ui/closures/capture-unsized-by-ref.rs
+tests/ui/coroutine/resume-after-return.rs
+tests/ui/macros/rfc-2011-nicer-assert-messages/all-expr-kinds.rs
+tests/ui/simd/masked-load-store.rs
+tests/ui/simd/repr_packed.rs
+tests/ui/async-await/in-trait/dont-project-to-specializable-projection.rs
+tests/ui/consts/try-operator.rs
+tests/ui/coroutine/unwind-abort-mix.rs
diff --git a/compiler/rustc_codegen_gcc/tests/failing-ui-tests12.txt b/compiler/rustc_codegen_gcc/tests/failing-ui-tests12.txt
new file mode 100644
index 00000000000..1d9bdaa552c
--- /dev/null
+++ b/compiler/rustc_codegen_gcc/tests/failing-ui-tests12.txt
@@ -0,0 +1,48 @@
+tests/ui/asm/x86_64/issue-96797.rs
+tests/ui/intrinsics/const-eval-select-x86_64.rs
+tests/ui/packed/packed-struct-drop-aligned.rs
+tests/ui/packed/packed-struct-generic-layout.rs
+tests/ui/packed/packed-struct-layout.rs
+tests/ui/packed/packed-struct-optimized-enum.rs
+tests/ui/packed/packed-struct-size.rs
+tests/ui/packed/packed-struct-vec.rs
+tests/ui/packed/packed-tuple-struct-layout.rs
+tests/ui/simd/array-type.rs
+tests/ui/simd/intrinsic/float-minmax-pass.rs
+tests/ui/simd/intrinsic/generic-arithmetic-pass.rs
+tests/ui/simd/intrinsic/generic-arithmetic-saturating-pass.rs
+tests/ui/simd/intrinsic/generic-as.rs
+tests/ui/simd/intrinsic/generic-cast-pass.rs
+tests/ui/simd/intrinsic/generic-cast-pointer-width.rs
+tests/ui/simd/intrinsic/generic-comparison-pass.rs
+tests/ui/simd/intrinsic/generic-elements-pass.rs
+tests/ui/simd/intrinsic/generic-reduction-pass.rs
+tests/ui/simd/intrinsic/generic-select-pass.rs
+tests/ui/simd/intrinsic/inlining-issue67557-ice.rs
+tests/ui/simd/intrinsic/inlining-issue67557.rs
+tests/ui/simd/shuffle.rs
+tests/ui/simd/simd-bitmask.rs
+tests/ui/iterators/iter-step-overflow-debug.rs
+tests/ui/numbers-arithmetic/next-power-of-two-overflow-debug.rs
+tests/ui/privacy/reachable-unnameable-items.rs
+tests/ui/rfcs/rfc-1937-termination-trait/termination-trait-in-test.rs
+tests/ui/async-await/async-fn-size-moved-locals.rs
+tests/ui/async-await/async-fn-size-uninit-locals.rs
+tests/ui/cfg/cfg-panic.rs
+tests/ui/coroutine/size-moved-locals.rs
+tests/ui/macros/rfc-2011-nicer-assert-messages/all-not-available-cases.rs
+tests/ui/simd/intrinsic/generic-gather-pass.rs
+tests/ui/simd/issue-85915-simd-ptrs.rs
+tests/ui/simd/issue-89193.rs
+tests/ui/issues/issue-68010-large-zst-consts.rs
+tests/ui/rust-2018/proc-macro-crate-in-paths.rs
+tests/ui/target-feature/missing-plusminus.rs
+tests/ui/sse2.rs
+tests/ui/codegen/issue-79865-llvm-miscompile.rs
+tests/ui/std-backtrace.rs
+tests/ui/mir/alignment/packed.rs
+tests/ui/intrinsics/intrinsics-integer.rs
+tests/ui/asm/x86_64/evex512-implicit-feature.rs
+tests/ui/packed/dyn-trait.rs
+tests/ui/packed/issue-118537-field-offset-ice.rs
+tests/ui/stable-mir-print/basic_function.rs
diff --git a/compiler/rustc_codegen_gcc/tests/lang_tests_common.rs b/compiler/rustc_codegen_gcc/tests/lang_tests_common.rs
index af0133aad46..d321ffc8ff5 100644
--- a/compiler/rustc_codegen_gcc/tests/lang_tests_common.rs
+++ b/compiler/rustc_codegen_gcc/tests/lang_tests_common.rs
@@ -5,6 +5,7 @@ use std::{
     process::Command,
 };
 
+use boml::Toml;
 use lang_tester::LangTester;
 use tempfile::TempDir;
 
@@ -20,20 +21,32 @@ pub fn main_inner(profile: Profile) {
     let tempdir = TempDir::new().expect("temp dir");
     let current_dir = current_dir().expect("current dir");
     let current_dir = current_dir.to_str().expect("current dir").to_string();
-    let gcc_path = include_str!("../gcc_path");
-    let gcc_path = gcc_path.trim();
+    let toml = Toml::parse(include_str!("../config.toml")).expect("Failed to parse `config.toml`");
+    let gcc_path = if let Ok(gcc_path) = toml.get_string("gcc-path") {
+        PathBuf::from(gcc_path.to_string())
+    } else {
+        // then we try to retrieve it from the `target` folder.
+        let commit = include_str!("../libgccjit.version").trim();
+        Path::new("build/libgccjit").join(commit)
+    };
+
+    let gcc_path = Path::new(&gcc_path)
+        .canonicalize()
+        .expect("failed to get absolute path of `gcc-path`")
+        .display()
+        .to_string();
     env::set_var("LD_LIBRARY_PATH", gcc_path);
 
-    fn rust_filter(filename: &Path) -> bool {
-        filename.extension().expect("extension").to_str().expect("to_str") == "rs"
+    fn rust_filter(path: &Path) -> bool {
+        path.is_file() && path.extension().expect("extension").to_str().expect("to_str") == "rs"
     }
 
-    #[cfg(feature="master")]
+    #[cfg(feature = "master")]
     fn filter(filename: &Path) -> bool {
         rust_filter(filename)
     }
 
-    #[cfg(not(feature="master"))]
+    #[cfg(not(feature = "master"))]
     fn filter(filename: &Path) -> bool {
         if let Some(filename) = filename.to_str() {
             if filename.ends_with("gep.rs") {
@@ -45,16 +58,17 @@ pub fn main_inner(profile: Profile) {
 
     LangTester::new()
         .test_dir("tests/run")
-        .test_file_filter(filter)
-        .test_extract(|source| {
-            let lines =
-                source.lines()
-                    .skip_while(|l| !l.starts_with("//"))
-                    .take_while(|l| l.starts_with("//"))
-                    .map(|l| &l[2..])
-                    .collect::<Vec<_>>()
-                    .join("\n");
-            Some(lines)
+        .test_path_filter(filter)
+        .test_extract(|path| {
+            let lines = std::fs::read_to_string(path)
+                .expect("read file")
+                .lines()
+                .skip_while(|l| !l.starts_with("//"))
+                .take_while(|l| l.starts_with("//"))
+                .map(|l| &l[2..])
+                .collect::<Vec<_>>()
+                .join("\n");
+            lines
         })
         .test_cmds(move |path| {
             // Test command 1: Compile `x.rs` into `tempdir/x`.
@@ -62,19 +76,22 @@ pub fn main_inner(profile: Profile) {
             exe.push(&tempdir);
             exe.push(path.file_stem().expect("file_stem"));
             let mut compiler = Command::new("rustc");
-            compiler.args(&[
+            compiler.args([
                 &format!("-Zcodegen-backend={}/target/debug/librustc_codegen_gcc.so", current_dir),
-                "--sysroot", &format!("{}/build_sysroot/sysroot/", current_dir),
+                "--sysroot",
+                &format!("{}/build_sysroot/sysroot/", current_dir),
                 "-Zno-parallel-llvm",
-                "-C", "link-arg=-lc",
-                "-o", exe.to_str().expect("to_str"),
+                "-C",
+                "link-arg=-lc",
+                "-o",
+                exe.to_str().expect("to_str"),
                 path.to_str().expect("to_str"),
             ]);
 
             // TODO(antoyo): find a way to send this via a cli argument.
             let test_target = std::env::var("CG_GCC_TEST_TARGET");
             if let Ok(ref target) = test_target {
-                compiler.args(&["--target", &target]);
+                compiler.args(["--target", target]);
                 let linker = format!("{}-gcc", target);
                 compiler.args(&[format!("-Clinker={}", linker)]);
                 let mut env_path = std::env::var("PATH").unwrap_or_default();
@@ -85,49 +102,38 @@ pub fn main_inner(profile: Profile) {
 
             if let Some(flags) = option_env!("TEST_FLAGS") {
                 for flag in flags.split_whitespace() {
-                    compiler.arg(&flag);
+                    compiler.arg(flag);
                 }
             }
             match profile {
                 Profile::Debug => {}
                 Profile::Release => {
-                    compiler.args(&[
-                        "-C", "opt-level=3",
-                        "-C", "lto=no",
-                    ]);
+                    compiler.args(["-C", "opt-level=3", "-C", "lto=no"]);
                 }
             }
             // Test command 2: run `tempdir/x`.
             if test_target.is_ok() {
                 let vm_parent_dir = std::env::var("CG_GCC_VM_DIR")
-                    .map(|dir| PathBuf::from(dir))
+                    .map(PathBuf::from)
                     .unwrap_or_else(|_| std::env::current_dir().unwrap());
                 let vm_dir = "vm";
                 let exe_filename = exe.file_name().unwrap();
                 let vm_home_dir = vm_parent_dir.join(vm_dir).join("home");
                 let vm_exe_path = vm_home_dir.join(exe_filename);
                 // FIXME(antoyo): panicking here makes the test pass.
-                let inside_vm_exe_path = PathBuf::from("/home").join(&exe_filename);
+                let inside_vm_exe_path = PathBuf::from("/home").join(exe_filename);
                 let mut copy = Command::new("sudo");
                 copy.arg("cp");
-                copy.args(&[&exe, &vm_exe_path]);
+                copy.args([&exe, &vm_exe_path]);
 
                 let mut runtime = Command::new("sudo");
-                runtime.args(&["chroot", vm_dir, "qemu-m68k-static"]);
+                runtime.args(["chroot", vm_dir, "qemu-m68k-static"]);
                 runtime.arg(inside_vm_exe_path);
                 runtime.current_dir(vm_parent_dir);
-                vec![
-                    ("Compiler", compiler),
-                    ("Copy", copy),
-                    ("Run-time", runtime),
-                ]
-            }
-            else {
+                vec![("Compiler", compiler), ("Copy", copy), ("Run-time", runtime)]
+            } else {
                 let runtime = Command::new(exe);
-                vec![
-                    ("Compiler", compiler),
-                    ("Run-time", runtime),
-                ]
+                vec![("Compiler", compiler), ("Run-time", runtime)]
             }
         })
         .run();