Auto merge of #142669 - GuillaumeGomez:subtree-update_cg_gcc_2025-06-18, r=GuillaumeGomez

Update GCC backend subtree

Author: bors

compiler/rustc_codegen_gcc/.cspell.json

@@ -0,0 +1,27 @@
+{
+    "allowCompoundWords": true,
+    "dictionaries": ["cpp", "rust-extra", "rustc_codegen_gcc"],
+    "dictionaryDefinitions": [
+        {
+            "name": "rust-extra",
+            "path": "tools/cspell_dicts/rust.txt",
+            "addWords": true
+        },
+        {
+            "name": "rustc_codegen_gcc",
+            "path": "tools/cspell_dicts/rustc_codegen_gcc.txt",
+            "addWords": true
+        }
+    ],
+    "files": [
+        "src/**/*.rs"
+    ],
+    "ignorePaths": [
+        "src/intrinsic/archs.rs",
+        "src/intrinsic/llvm.rs"
+    ],
+    "ignoreRegExpList": [
+        "/(FIXME|NOTE|TODO)\\([^)]+\\)/",
+        "__builtin_\\w*"
+    ]
+}

compiler/rustc_codegen_gcc/.github/workflows/ci.yml

@@ -12,6 +12,8 @@ permissions:
 env:
   # Enable backtraces for easier debugging
   RUST_BACKTRACE: 1
+  # For the run-make tests.
+  LLVM_BIN_DIR: /usr/bin
 
 jobs:
   build:
@@ -48,7 +50,7 @@ jobs:
 
     - name: Install packages
       # `llvm-14-tools` is needed to install the `FileCheck` binary which is used for asm tests.
-      run: sudo apt-get install ninja-build ripgrep llvm-14-tools
+      run: sudo apt-get install ninja-build ripgrep llvm-14-tools llvm
 
     - name: Install rustfmt & clippy
       run: rustup component add rustfmt clippy
@@ -61,11 +63,15 @@ jobs:
           sudo dpkg --force-overwrite -i ${{ matrix.libgccjit_version.gcc }}
           echo 'gcc-path = "/usr/lib/"' > config.toml
 
+    # Some run-make tests fail if we use our forked GCC because it doesn't
+    # bundle libstdc++, so we switch to gcc-14 to have a GCC that has
+    # libstdc++.
+    - name: Set default GCC to gcc-14
+      run: sudo update-alternatives --install /usr/bin/cc cc /usr/bin/gcc-14 30
+
     - name: Set env
       run: |
         echo "workspace="$GITHUB_WORKSPACE >> $GITHUB_ENV
-        echo "LIBRARY_PATH=/usr/lib" >> $GITHUB_ENV
-        echo "LD_LIBRARY_PATH=/usr/lib" >> $GITHUB_ENV
 
     #- name: Cache rust repository
       ## We only clone the rust repository for rustc tests
@@ -76,12 +82,22 @@ jobs:
         #path: rust
         #key: ${{ runner.os }}-packages-${{ hashFiles('rust/.git/HEAD') }}
 
+    - name: Prepare
+      run: ./y.sh prepare --only-libcore
+
+    - name: Check formatting
+      run: ./y.sh fmt --check
+
+    - name: clippy
+      run: |
+        cargo clippy --all-targets -- -D warnings
+        cargo clippy --all-targets --no-default-features -- -D warnings
+        cargo clippy --manifest-path build_system/Cargo.toml --all-targets -- -D warnings
+
     - name: Build
       run: |
-        ./y.sh prepare --only-libcore
         ./y.sh build --sysroot
-        ./y.sh test --mini-tests
-        cargo test
+        ./y.sh test --cargo-tests
 
     - name: Run y.sh cargo build
       run: |
@@ -101,20 +117,19 @@ jobs:
       run: |
         ./y.sh test --release --clean --build-sysroot ${{ matrix.commands }}
 
-    - name: Check formatting
-      run: ./y.sh fmt --check
-
-    - name: clippy
-      run: |
-        cargo clippy --all-targets -- -D warnings
-        cargo clippy --all-targets --features master -- -D warnings
-
   duplicates:
     runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
       - run: python tools/check_intrinsics_duplicates.py
 
+  spell_check:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+      - uses: crate-ci/[email protected]
+      - uses: streetsidesoftware/cspell-action@v7
+
   build_system:
     runs-on: ubuntu-24.04
     steps:

compiler/rustc_codegen_gcc/.github/workflows/failures.yml

@@ -66,8 +66,8 @@ jobs:
       run: |
           sudo dpkg --force-overwrite -i gcc-15.deb
           echo 'gcc-path = "/usr/lib"' > config.toml
-          echo "LIBRARY_PATH=/usr/lib" >> $GITHUB_ENV
-          echo "LD_LIBRARY_PATH=/usr/lib" >> $GITHUB_ENV
+          
+          
 
     - name: Set env
       run: |

compiler/rustc_codegen_gcc/.github/workflows/m68k.yml

@@ -65,8 +65,8 @@ jobs:
     - name: Set env
       run: |
         echo "workspace="$GITHUB_WORKSPACE >> $GITHUB_ENV
-        echo "LIBRARY_PATH=/usr/lib" >> $GITHUB_ENV
-        echo "LD_LIBRARY_PATH=/usr/lib" >> $GITHUB_ENV
+        
+        
 
     #- name: Cache rust repository
       ## We only clone the rust repository for rustc tests
@@ -95,7 +95,7 @@ jobs:
         ./y.sh prepare --only-libcore --cross
         ./y.sh build --sysroot --features compiler_builtins/no-f16-f128 --target-triple m68k-unknown-linux-gnu
         ./y.sh test --mini-tests
-        CG_GCC_TEST_TARGET=m68k-unknown-linux-gnu cargo test
+        CG_GCC_TEST_TARGET=m68k-unknown-linux-gnu ./y.sh test --cargo-tests
         ./y.sh clean all
 
     - name: Prepare dependencies

compiler/rustc_codegen_gcc/.github/workflows/release.yml

@@ -12,6 +12,8 @@ permissions:
 env:
   # Enable backtraces for easier debugging
   RUST_BACKTRACE: 1
+  # For the run-make tests.
+  LLVM_BIN_DIR: /usr/bin
 
 jobs:
   build:
@@ -36,7 +38,8 @@ jobs:
       uses: Swatinem/rust-cache@v2
 
     - name: Install packages
-      run: sudo apt-get install ninja-build ripgrep
+      # `llvm-14-tools` is needed to install the `FileCheck` binary which is used for run-make tests.
+      run: sudo apt-get install ninja-build ripgrep llvm-14-tools llvm
 
     - name: Download artifact
       run: curl -LO https://github.com/rust-lang/gcc/releases/latest/download/gcc-15.deb
@@ -46,18 +49,21 @@ jobs:
           sudo dpkg --force-overwrite -i gcc-15.deb
           echo 'gcc-path = "/usr/lib/"' > config.toml
 
+    # Some run-make tests fail if we use our forked GCC because it doesn't
+    # bundle libstdc++, so we switch to gcc-14 to have a GCC that has
+    # libstdc++.
+    - name: Set default GCC to gcc-14
+      run: sudo update-alternatives --install /usr/bin/cc cc /usr/bin/gcc-14 30
+
     - name: Set env
       run: |
         echo "workspace="$GITHUB_WORKSPACE >> $GITHUB_ENV
-        echo "LIBRARY_PATH=/usr/lib" >> $GITHUB_ENV
-        echo "LD_LIBRARY_PATH=/usr/lib" >> $GITHUB_ENV
 
     - name: Build
       run: |
         ./y.sh prepare --only-libcore
         EMBED_LTO_BITCODE=1 ./y.sh build --sysroot --release --release-sysroot
-        ./y.sh test --mini-tests
-        cargo test
+        ./y.sh test --cargo-tests
         ./y.sh clean all
 
     - name: Prepare dependencies

compiler/rustc_codegen_gcc/.github/workflows/stdarch.yml

@@ -90,7 +90,7 @@ jobs:
       if: ${{ !matrix.cargo_runner }}
       run: |
         ./y.sh test --release --clean --release-sysroot --build-sysroot --mini-tests --std-tests --test-libcore
-        cargo test
+        ./y.sh test --cargo-tests
 
     - name: Run stdarch tests
       if: ${{ !matrix.cargo_runner }}

compiler/rustc_codegen_gcc/.gitignore

@@ -19,4 +19,5 @@ tools/llvmint-2
 llvm
 build_system/target
 config.toml
-build
+build
+rustlantis

compiler/rustc_codegen_gcc/CONTRIBUTING.md

@@ -33,7 +33,7 @@ To run specific tests, use appropriate flags such as:
 
 - `./y.sh test --test-libcore`
 - `./y.sh test --std-tests`
-- `cargo test -- <name of test>`
+- `./y.sh test --cargo-tests -- <name of test>`
 
 Additionally, you can run the tests of `libgccjit`:
 

compiler/rustc_codegen_gcc/Cargo.lock

@@ -81,6 +81,18 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26145e563e54f2cadc477553f1ec5ee650b00862f0a58bcd12cbdc5f0ea2d2f4"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "r-efi",
+ "wasi",
+]
+
 [[package]]
 name = "hermit-abi"
 version = "0.3.1"
@@ -111,9 +123,9 @@ checksum = "5aaeb2981e0606ca11d79718f8bb01164f1d6ed75080182d3abf017e6d244b6d"
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.4.14"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
+checksum = "cd945864f07fe9f5371a27ad7b52a172b4b499999f1d97574c9fa68373937e12"
 
 [[package]]
 name = "memchr"
@@ -137,6 +149,12 @@ version = "1.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
 
+[[package]]
+name = "r-efi"
+version = "5.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
+
 [[package]]
 name = "regex"
 version = "1.8.4"
@@ -166,9 +184,9 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.38.42"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f93dc38ecbab2eb790ff964bb77fa94faf256fd3e73285fd7ba0903b76bedb85"
+checksum = "c71e83d6afe7ff64890ec6b71d6a69bb8a610ab78ce364b3352876bb4c801266"
 dependencies = [
  "bitflags",
  "errno",
@@ -188,12 +206,12 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.14.0"
+version = "3.20.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28cce251fcbc87fac86a866eeb0d6c2d536fc16d06f184bb61aeae11aa4cee0c"
+checksum = "e8a64e3985349f2441a1a9ef0b853f869006c3855f2cda6862a94d26ebb9d6a1"
 dependencies = [
- "cfg-if",
  "fastrand",
+ "getrandom",
  "once_cell",
  "rustix",
  "windows-sys",
@@ -242,6 +260,15 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "wasi"
+version = "0.14.2+wasi-0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9683f9a5a998d873c0d21fcbe3c083009670149a8fab228644b8bd36b2c48cb3"
+dependencies = [
+ "wit-bindgen-rt",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -345,3 +372,12 @@ name = "windows_x86_64_msvc"
 version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
+
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.39.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6f42320e61fe2cfd34354ecb597f86f413484a798ba44a8ca1165c58d42da6c1"
+dependencies = [
+ "bitflags",
+]

compiler/rustc_codegen_gcc/Cargo.toml

@@ -31,7 +31,7 @@ gccjit = "2.7"
 [dev-dependencies]
 boml = "0.3.1"
 lang_tester = "0.8.0"
-tempfile = "3.7.1"
+tempfile = "3.20"
 
 [profile.dev]
 # By compiling dependencies with optimizations, performing tests gets much faster.

compiler/rustc_codegen_gcc/_typos.toml

@@ -0,0 +1,9 @@
+[default.extend-words]
+ba = "ba"
+hsa = "hsa"
+olt = "olt"
+seh = "seh"
+typ = "typ"
+
+[files]
+extend-exclude = ["src/intrinsic/archs.rs"]