Auto merge of #107044 - cuviper:more-llvm-ci, r=Mark-Simulacrum

ci: add runners for vanilla LLVM 14 and 15

As discussed in [zulip #t-infra][1] -- r? Mark-Simulacrum

[1]: https://rust-lang.zulipchat.com/#narrow/stream/242791-t-infra/topic/testing.20multiple.20llvm.20versions

.github/workflows/ci.yml

@@ -291,6 +291,14 @@ jobs:
  - name: x86_64-gnu-distcheck
  os: ubuntu-20.04-xl
  env: {}
+ - name: x86_64-gnu-llvm-15
+ env:
+ RUST_BACKTRACE: 1
+ os: ubuntu-20.04-xl
+ - name: x86_64-gnu-llvm-14
+ env:
+ RUST_BACKTRACE: 1
+ os: ubuntu-20.04-xl
  - name: x86_64-gnu-llvm-13
  env:
  RUST_BACKTRACE: 1

src/ci/docker/host-x86_64/x86_64-gnu-llvm-14/Dockerfile

@@ -0,0 +1,67 @@
+FROM ubuntu:22.04
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+# NOTE: intentionally installs both python2 and python3 so we can test support for both.
+RUN apt-get update && apt-get install -y --no-install-recommends \
+ g++ \
+ gcc-multilib \
+ make \
+ ninja-build \
+ file \
+ curl \
+ ca-certificates \
+ python2.7 \
+ python3 \
+ git \
+ cmake \
+ sudo \
+ gdb \
+ llvm-14-tools \
+ llvm-14-dev \
+ libedit-dev \
+ libssl-dev \
+ pkg-config \
+ zlib1g-dev \
+ xz-utils \
+ nodejs \
+ && rm -rf /var/lib/apt/lists/*
+
+# Install powershell (universal package) so we can test x.ps1 on Linux
+RUN curl -sL "https://github.com/PowerShell/PowerShell/releases/download/v7.3.1/powershell_7.3.1-1.deb_amd64.deb" > powershell.deb && \
+ dpkg -i powershell.deb && \
+ rm -f powershell.deb
+
+COPY scripts/sccache.sh /scripts/
+RUN sh /scripts/sccache.sh
+
+# We are disabling CI LLVM since this builder is intentionally using a host
+# LLVM, rather than the typical src/llvm-project LLVM.
+ENV NO_DOWNLOAD_CI_LLVM 1
+
+# Using llvm-link-shared due to libffi issues -- see #34486
+ENV RUST_CONFIGURE_ARGS \
+ --build=x86_64-unknown-linux-gnu \
+ --llvm-root=/usr/lib/llvm-14 \
+ --enable-llvm-link-shared \
+ --set rust.thin-lto-import-instr-limit=10
+
+# NOTE: intentionally uses all of `x.py`, `x`, and `x.ps1` to make sure they all work on Linux.
+ENV SCRIPT ../x.py --stage 2 test --exclude src/tools/tidy && \
+ # Run the `mir-opt` tests again but this time for a 32-bit target.
+ # This enforces that tests using `// EMIT_MIR_FOR_EACH_BIT_WIDTH` have
+ # both 32-bit and 64-bit outputs updated by the PR author, before
+ # the PR is approved and tested for merging.
+ # It will also detect tests lacking `// EMIT_MIR_FOR_EACH_BIT_WIDTH`,
+ # despite having different output on 32-bit vs 64-bit targets.
+ ../x --stage 2 test tests/mir-opt \
+ --host='' --target=i686-unknown-linux-gnu && \
+ # Run the UI test suite again, but in `--pass=check` mode
+ #
+ # This is intended to make sure that both `--pass=check` continues to
+ # work.
+ #
+ ../x.ps1 --stage 2 test tests/ui --pass=check \
+ --host='' --target=i686-unknown-linux-gnu && \
+ # Run tidy at the very end, after all the other tests.
+ python2.7 ../x.py --stage 2 test src/tools/tidy

src/ci/docker/host-x86_64/x86_64-gnu-llvm-15/Dockerfile

@@ -0,0 +1,67 @@
+FROM ubuntu:22.10
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+# NOTE: intentionally installs both python2 and python3 so we can test support for both.
+RUN apt-get update && apt-get install -y --no-install-recommends \
+ g++ \
+ gcc-multilib \
+ make \
+ ninja-build \
+ file \
+ curl \
+ ca-certificates \
+ python2.7 \
+ python3 \
+ git \
+ cmake \
+ sudo \
+ gdb \
+ llvm-15-tools \
+ llvm-15-dev \
+ libedit-dev \
+ libssl-dev \
+ pkg-config \
+ zlib1g-dev \
+ xz-utils \
+ nodejs \
+ && rm -rf /var/lib/apt/lists/*
+
+# Install powershell (universal package) so we can test x.ps1 on Linux
+RUN curl -sL "https://github.com/PowerShell/PowerShell/releases/download/v7.3.1/powershell_7.3.1-1.deb_amd64.deb" > powershell.deb && \
+ dpkg -i powershell.deb && \
+ rm -f powershell.deb
+
+COPY scripts/sccache.sh /scripts/
+RUN sh /scripts/sccache.sh
+
+# We are disabling CI LLVM since this builder is intentionally using a host
+# LLVM, rather than the typical src/llvm-project LLVM.
+ENV NO_DOWNLOAD_CI_LLVM 1
+
+# Using llvm-link-shared due to libffi issues -- see #34486
+ENV RUST_CONFIGURE_ARGS \
+ --build=x86_64-unknown-linux-gnu \
+ --llvm-root=/usr/lib/llvm-15 \
+ --enable-llvm-link-shared \
+ --set rust.thin-lto-import-instr-limit=10
+
+# NOTE: intentionally uses all of `x.py`, `x`, and `x.ps1` to make sure they all work on Linux.
+ENV SCRIPT ../x.py --stage 2 test --exclude src/tools/tidy && \
+ # Run the `mir-opt` tests again but this time for a 32-bit target.
+ # This enforces that tests using `// EMIT_MIR_FOR_EACH_BIT_WIDTH` have
+ # both 32-bit and 64-bit outputs updated by the PR author, before
+ # the PR is approved and tested for merging.
+ # It will also detect tests lacking `// EMIT_MIR_FOR_EACH_BIT_WIDTH`,
+ # despite having different output on 32-bit vs 64-bit targets.
+ ../x --stage 2 test tests/mir-opt \
+ --host='' --target=i686-unknown-linux-gnu && \
+ # Run the UI test suite again, but in `--pass=check` mode
+ #
+ # This is intended to make sure that both `--pass=check` continues to
+ # work.
+ #
+ ../x.ps1 --stage 2 test tests/ui --pass=check \
+ --host='' --target=i686-unknown-linux-gnu && \
+ # Run tidy at the very end, after all the other tests.
+ python2.7 ../x.py --stage 2 test src/tools/tidy

src/ci/github-actions/ci.yml

@@ -450,6 +450,16 @@ jobs:
  - name: x86_64-gnu-distcheck
  <<: *job-linux-xl
 
+ - name: x86_64-gnu-llvm-15
+ env:
+ RUST_BACKTRACE: 1
+ <<: *job-linux-xl
+
+ - name: x86_64-gnu-llvm-14
+ env:
+ RUST_BACKTRACE: 1
+ <<: *job-linux-xl
+
  - name: x86_64-gnu-llvm-13
  env:
  RUST_BACKTRACE: 1