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Add a CI job that runs a subset of UI tests with the GCC backend #146414

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f5964ba
Run rust tests with GCC backend
GuillaumeGomez Sep 10, 2025
fbc6841
Disable debug assertions
GuillaumeGomez Oct 1, 2025
3d7db3f
Ignore more failing ui tests in GCC backend
GuillaumeGomez Oct 2, 2025
12ae94c
Ignoring working crahes test in GCC backend
GuillaumeGomez Oct 2, 2025
fad2ab4
Ignore coverage tests for GCC
GuillaumeGomez Oct 2, 2025
3df6f36
Ignore some `mir-opt` tests because GCC backend does not support unwi…
GuillaumeGomez Oct 2, 2025
4bee877
Ignore failing incremental tests for GCC backend
GuillaumeGomez Oct 2, 2025
2ae5737
Ignore failing `debuginfo` tests with gcc backend
GuillaumeGomez Oct 2, 2025
039fdd2
Skip GCC backend-specific test if current backend is already gcc
GuillaumeGomez Oct 3, 2025
66c735a
Ignore failing gcc backend testsuite directly in Dockerfile
GuillaumeGomez Oct 3, 2025
bf2b742
Re-enable libgccjit download in CI
GuillaumeGomez Oct 3, 2025
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54 changes: 54 additions & 0 deletions src/ci/docker/host-x86_64/x86_64-gnu-gcc/Dockerfile
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FROM ubuntu:22.04

ARG DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y --no-install-recommends \
bzip2 \
g++ \
make \
ninja-build \
file \
curl \
ca-certificates \
python3 \
git \
cmake \
sudo \
gdb \
libssl-dev \
pkg-config \
xz-utils \
mingw-w64 \
zlib1g-dev \
libzstd-dev \
# libgccjit dependencies
flex \
libmpfr-dev \
libgmp-dev \
libmpc3 \
libmpc-dev \
&& rm -rf /var/lib/apt/lists/*

COPY scripts/sccache.sh /scripts/
RUN sh /scripts/sccache.sh

ENV NO_DEBUG_ASSERTIONS 1
ENV RUST_CONFIGURE_ARGS \
--build=x86_64-unknown-linux-gnu \
--enable-sanitizers \
--enable-profiler \
--enable-compiler-docs \
--set llvm.libzstd=true \
--set 'rust.codegen-backends=[\"llvm\",\"gcc\"]'
ENV SCRIPT python3 ../x.py \
--stage 2 \
test tests \
--test-codegen-backend gcc \
--skip tests/coverage \
--skip tests/coverage-run-rustdoc \
--skip tests/rustdoc \
--skip tests/rustdoc-gui \
--skip tests/rustdoc-js \
--skip tests/rustdoc-js-std \
--skip tests/rustdoc-json \
--skip tests/rustdoc-ui \
--set 'rust.codegen-backends=[\"llvm\",\"gcc\"]'
7 changes: 7 additions & 0 deletions src/ci/github-actions/jobs.yml
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Expand Up @@ -141,6 +141,9 @@ pr:
<<: *job-linux-4c
- name: x86_64-gnu-miri
<<: *job-linux-4c
- name: x86_64-gnu-gcc
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Note: remove before merging.

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Don't we want this to run on each PR or did I misunderstand when this one is run?

doc_url: https://rustc-dev-guide.rust-lang.org/tests/codegen-backend-tests/cg_gcc.html
<<: *job-linux-4c

# Jobs that run when you perform a try build (@bors try)
# These jobs automatically inherit envs.try, to avoid repeating
Expand Down Expand Up @@ -348,6 +351,10 @@ auto:
- name: x86_64-gnu
<<: *job-linux-4c

- name: x86_64-gnu-gcc
doc_url: https://rustc-dev-guide.rust-lang.org/tests/codegen-backend-tests/cg_gcc.html
<<: *job-linux-4c

# This job ensures commits landing on nightly still pass the full
# test suite on the stable channel. There are some UI tests that
# depend on the channel being built (for example if they include the
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1 change: 1 addition & 0 deletions tests/crashes/118244.rs
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//@ known-bug: #118244
//@ compile-flags: -Cdebuginfo=2
//@ ignore-backends: gcc

#![allow(incomplete_features)]
#![feature(generic_const_exprs)]
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1 change: 1 addition & 0 deletions tests/crashes/134479.rs
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//@ known-bug: #134479
//@ compile-flags: -Csymbol-mangling-version=v0 -Cdebuginfo=1
//@ ignore-backends: gcc

#![feature(generic_const_exprs)]

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1 change: 1 addition & 0 deletions tests/crashes/139462.rs
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//@ known-bug: #139462
//@ compile-flags: -Cdebuginfo=2
//@ ignore-backends: gcc
#![feature(unsafe_binders)]
use std::unsafe_binder::wrap_binder;
fn main() {
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1 change: 1 addition & 0 deletions tests/crashes/34127.rs
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//@ compile-flags: -g -Copt-level=0 -Z verify-llvm-ir
//@ known-bug: #34127
//@ only-64bit
//@ ignore-backends: gcc

pub fn main() {
let _a = [(); 1 << 63];
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1 change: 1 addition & 0 deletions tests/debuginfo/associated-types.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================
// gdb-command:run
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1 change: 1 addition & 0 deletions tests/debuginfo/basic-stepping.rs
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//@ ignore-loongarch64: Doesn't work yet.
//@ ignore-riscv64: Doesn't work yet.
//@ compile-flags: -g
//@ ignore-backends: gcc

// gdb-command: run
// FIXME(#97083): Should we be able to break on initialization of zero-sized types?
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1 change: 1 addition & 0 deletions tests/debuginfo/basic-types-globals-metadata.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// gdb-command:run
// gdb-command:whatis basic_types_globals_metadata::B
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1 change: 1 addition & 0 deletions tests/debuginfo/basic-types-globals.rs
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//@ [lto] compile-flags:-C lto
//@ [lto] no-prefer-dynamic
//@ ignore-backends: gcc

// gdb-command:run
// gdb-command:print B
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1 change: 1 addition & 0 deletions tests/debuginfo/basic-types-metadata.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// gdb-command:run
// gdb-command:whatis unit
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1 change: 1 addition & 0 deletions tests/debuginfo/basic-types-mut-globals.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// gdb-command:run

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1 change: 1 addition & 0 deletions tests/debuginfo/basic-types.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/borrowed-basic.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/borrowed-c-style-enum.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/borrowed-enum.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/borrowed-struct.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/borrowed-tuple.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/borrowed-unique-basic.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/box.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/boxed-struct.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/by-value-self-argument-in-trait-impl.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/c-style-enum-in-composite.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/c-style-enum.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/captured-fields-1.rs
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//@ compile-flags:-g
//@ edition:2021
//@ ignore-backends: gcc
// === GDB TESTS ===================================================================================

// gdb-command:run
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1 change: 1 addition & 0 deletions tests/debuginfo/captured-fields-2.rs
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//@ compile-flags:-g
//@ edition:2021
//@ ignore-backends: gcc
// === GDB TESTS ===================================================================================

// gdb-command:run
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1 change: 1 addition & 0 deletions tests/debuginfo/closure-in-generic-function.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/collapse-debuginfo-in-non-collapse-macro.rs
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// without collapse_debuginfo attribute.

//@ compile-flags:-g
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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3 changes: 2 additions & 1 deletion tests/debuginfo/collapse-debuginfo-static-external.rs
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// Test that static debug info is not collapsed with #[collapse_debuginfo(external)]

//@ compile-flags:-g
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

// gdb-command:info line collapse_debuginfo_static_external::FOO
// gdb-check:[...]Line 15[...]
// gdb-check:[...]Line 16[...]

#[collapse_debuginfo(external)]
macro_rules! decl_foo {
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3 changes: 2 additions & 1 deletion tests/debuginfo/collapse-debuginfo-static.rs
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// Test that static debug info is collapsed with #[collapse_debuginfo(yes)]

//@ compile-flags:-g
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

// gdb-command:info line collapse_debuginfo_static::FOO
// gdb-check:[...]Line 19[...]
// gdb-check:[...]Line 20[...]

#[collapse_debuginfo(yes)]
macro_rules! decl_foo {
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1 change: 1 addition & 0 deletions tests/debuginfo/constant-ordering-prologue.rs
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//@ min-lldb-version: 310

//@ compile-flags:-g
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/coroutine-locals.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/coroutine-objects.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/cross-crate-spans.rs
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Expand Up @@ -3,6 +3,7 @@ extern crate cross_crate_spans;

//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc


// === GDB TESTS ===================================================================================
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1 change: 1 addition & 0 deletions tests/debuginfo/cross-crate-type-uniquing.rs
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Expand Up @@ -3,6 +3,7 @@ extern crate cross_crate_debuginfo_type_uniquing;

//@ no-prefer-dynamic
//@ compile-flags:-g -C lto
//@ ignore-backends: gcc

pub struct C;
pub fn p() -> C {
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1 change: 1 addition & 0 deletions tests/debuginfo/destructured-fn-argument.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/destructured-for-loop-variable.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/destructured-local.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/dummy_span.rs
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//@ min-lldb-version: 310

//@ compile-flags:-g
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/embedded-visualizer.rs
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Expand Up @@ -63,6 +63,7 @@
#![debugger_visualizer(gdb_script_file = "embedded-visualizer.py")]

//@ aux-build: dependency-with-embedded-visualizers.rs
//@ ignore-backends: gcc
extern crate dependency_with_embedded_visualizers;

use dependency_with_embedded_visualizers::Person;
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1 change: 1 addition & 0 deletions tests/debuginfo/empty-string.rs
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//@ ignore-windows-gnu: #128981
//@ ignore-android: FIXME(#10381)
//@ compile-flags:-g
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/enum-thinlto.rs
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//@ min-lldb-version: 1800
//@ compile-flags:-g -Z thinlto
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/evec-in-struct.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================

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1 change: 1 addition & 0 deletions tests/debuginfo/extern-c-fn.rs
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//@ compile-flags:-g
//@ disable-gdb-pretty-printers
//@ ignore-backends: gcc

// === GDB TESTS ===================================================================================
// gdb-command:run
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