Rebase on main

Created using spr 1.3.6-beta.1

Author: ilovepi

.ci/monolithic-linux.sh

@@ -34,8 +34,11 @@ function at-exit {
 
   # If building fails there will be no results files.
   shopt -s nullglob
-  python3 "${MONOREPO_ROOT}"/.ci/generate_test_report.py ":linux: Linux x64 Test Results" \
-    "linux-x64-test-results" "${BUILD_DIR}"/test-results.*.xml
+  if command -v buildkite-agent 2>&1 >/dev/null
+  then
+    python3 "${MONOREPO_ROOT}"/.ci/generate_test_report.py ":linux: Linux x64 Test Results" \
+      "linux-x64-test-results" "${BUILD_DIR}"/test-results.*.xml
+  fi
 }
 trap at-exit EXIT
 

.ci/monolithic-windows.sh

@@ -33,8 +33,11 @@ function at-exit {
 
   # If building fails there will be no results files.
   shopt -s nullglob
-  python "${MONOREPO_ROOT}"/.ci/generate_test_report.py ":windows: Windows x64 Test Results" \
-    "windows-x64-test-results" "${BUILD_DIR}"/test-results.*.xml
+  if command -v buildkite-agent 2>&1 >/dev/null
+  then
+    python "${MONOREPO_ROOT}"/.ci/generate_test_report.py ":windows: Windows x64 Test Results" \
+      "windows-x64-test-results" "${BUILD_DIR}"/test-results.*.xml
+  fi
 }
 trap at-exit EXIT
 

.git-blame-ignore-revs

@@ -94,3 +94,6 @@ b6262880b34629e9d7a72b5a42f315a3c9ed8139
 39c7dc7207e76e72da21cf4fedda21b5311bf62d
 e80bc777749331e9519575f416c342f7626dd14d
 7e5cd8f1b6c5263ed5e2cc03d60c8779a8d3e9f7
+
+# NFC: clang-format test_demangle.pass.cpp but keep test "lines"
+d33bf2e9df578ff7e44fd22504d6ad5a122b7ee6

.github/new-prs-labeler.yml

@@ -747,6 +747,12 @@ backend:RISC-V:
   - llvm/**/*riscv*
   - llvm/**/*RISCV*
 
+backend:Xtensa:
+  - clang/**/*xtensa*
+  - clang/**/*Xtensa*
+  - llvm/**/*xtensa*
+  - llvm/**/*Xtensa*
+
 lld:coff:
   - lld/**/COFF/**
   - lld/Common/**

.github/workflows/build-ci-container-windows.yml

@@ -68,8 +68,8 @@ jobs:
           name: container
       - name: Push Container
         run: |
-          docker load -i ${{ needs.build-ci-container.outptus.container-filename }}
-          docker tag ${{ steps.vars.outputs.container-name-tag }} ${{ steps.vars.outputs.container-name }}:latest
+          docker load -i ${{ needs.build-ci-container-windows.outputs.container-filename }}
+          docker tag ${{ needs.build-ci-container-windows.outputs.container-name-tag }} ${{ needs.build-ci-container-windows.outputs.container-name }}:latest
           docker login -u ${{ github.actor }} -p $env:GITHUB_TOKEN ghcr.io
-          docker push ${{ needs.build-ci-container.outputs.container-name-tag }}
-          docker push ${{ needs.build-ci-container.outputs.container-name }}:latest
+          docker push ${{ needs.build-ci-container-windows.outputs.container-name-tag }}
+          docker push ${{ needs.build-ci-container-windows.outputs.container-name }}:latest

.github/workflows/build-ci-container.yml

@@ -60,7 +60,7 @@ jobs:
       - name: Test Container
         run: |
           for image in ${{ steps.vars.outputs.container-name-tag }} ${{  steps.vars.outputs.container-name }}; do
-            podman run --rm -it $image /usr/bin/bash -x -c 'printf '\''#include <iostream>\nint main(int argc, char **argv) { std::cout << "Hello\\n"; }'\'' | clang++ -x c++ - && ./a.out | grep Hello'
+            podman run --rm -it $image /usr/bin/bash -x -c 'cd $HOME && printf '\''#include <iostream>\nint main(int argc, char **argv) { std::cout << "Hello\\n"; }'\'' | clang++ -x c++ - && ./a.out | grep Hello'
           done
 
   push-ci-container:
@@ -80,8 +80,8 @@ jobs:
 
       - name: Push Container
         run: |
-          podman load -i ${{ needs.build-ci-container.outptus.container-filename }}
-          podman tag ${{ steps.vars.outputs.container-name-tag }} ${{ steps.vars.outputs.container-name }}:latest
+          podman load -i ${{ needs.build-ci-container.outputs.container-filename }}
+          podman tag ${{ needs.build-ci-container.outputs.container-name-tag }} ${{ needs.build-ci-container.outputs.container-name }}:latest
           podman login -u ${{ github.actor }} -p $GITHUB_TOKEN ghcr.io
           podman push ${{ needs.build-ci-container.outputs.container-name-tag }}
           podman push ${{ needs.build-ci-container.outputs.container-name }}:latest

.github/workflows/containers/github-action-ci/Dockerfile

@@ -41,13 +41,13 @@ RUN ninja -C ./build stage2-clang-bolt stage2-install-distribution && ninja -C .
 FROM base
 
 COPY --from=stage1-toolchain $LLVM_SYSROOT $LLVM_SYSROOT
-    
+
 # Need to install curl for hendrikmuhs/ccache-action
 # Need nodejs for some of the GitHub actions.
 # Need perl-modules for clang analyzer tests.
 # Need git for SPIRV-Tools tests.
 RUN apt-get update && \
-    apt-get install -y \
+    DEBIAN_FRONTEND=noninteractive apt-get install -y \
     binutils \ 
     cmake \
     curl \
@@ -56,7 +56,22 @@ RUN apt-get update && \
     ninja-build \
     nodejs \
     perl-modules \
-    python3-psutil
+    python3-psutil \
+
+    # These are needed by the premerge pipeline. Pip is used to install
+    # dependent python packages and ccache is used for build caching. File and
+    # tzdata are used for tests.
+    python3-pip \
+    ccache \
+    file \
+    tzdata
 
 ENV LLVM_SYSROOT=$LLVM_SYSROOT
 ENV PATH=${LLVM_SYSROOT}/bin:${PATH}
+
+# Create a new user to avoid test failures related to a lack of expected
+# permissions issues in some tests. Set the user id to 1001 as that is the
+# user id that Github Actions uses to perform the checkout action.
+RUN useradd gha -u 1001 -m -s /bin/bash
+USER gha
+

.github/workflows/docs.yml

@@ -106,9 +106,9 @@ jobs:
         with:
           python-version: '3.11'
           cache: 'pip'
-          cache-dependency-path: 'llvm/docs/requirements.txt'
+          cache-dependency-path: 'llvm/docs/requirements-hashed.txt'
       - name: Install python dependencies
-        run: pip install -r llvm/docs/requirements.txt
+        run: pip install -r llvm/docs/requirements-hashed.txt
       - name: Install system dependencies
         run: |
           sudo apt-get update

.github/workflows/premerge.yaml

@@ -0,0 +1,69 @@
+name: LLVM Premerge Checks
+
+permissions:
+  contents: read
+
+on:
+  pull_request:
+    paths:
+      - .github/workflows/premerge.yaml
+  push:
+    branches:
+      - 'main'
+
+jobs:
+  premerge-checks-linux:
+    if: github.repository_owner == 'llvm'
+    runs-on: llvm-premerge-linux-runners
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+      cancel-in-progress: true
+    container:
+      image: ghcr.io/llvm/ci-ubuntu-22.04:latest
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - name: Checkout LLVM
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+      - name: Setup ccache
+        uses: hendrikmuhs/[email protected]
+      - name: Build and Test
+        run: |
+          git config --global --add safe.directory '*'
+
+          modified_files=$(git diff --name-only HEAD~1...HEAD)
+          modified_dirs=$(echo "$modified_files" | cut -d'/' -f1 | sort -u)
+
+          echo $modified_files
+          echo $modified_dirs
+
+          . ./.ci/compute-projects.sh
+
+          all_projects="bolt clang clang-tools-extra compiler-rt cross-project-tests flang libc libclc lld lldb llvm mlir openmp polly pstl"
+          modified_projects="$(keep-modified-projects ${all_projects})"
+
+          linux_projects_to_test=$(exclude-linux $(compute-projects-to-test 0 ${modified_projects}))
+          linux_check_targets=$(check-targets ${linux_projects_to_test} | sort | uniq)
+          linux_projects=$(add-dependencies ${linux_projects_to_test} | sort | uniq)
+
+          linux_runtimes_to_test=$(compute-runtimes-to-test ${linux_projects_to_test})
+          linux_runtime_check_targets=$(check-targets ${linux_runtimes_to_test} | sort | uniq)
+          linux_runtimes=$(echo ${linux_runtimes_to_test} | sort | uniq)
+
+          if [[ "${linux_projects}" == "" ]]; then
+            echo "No projects to build"
+            exit 0
+          fi
+
+          echo "Building projects: ${linux_projects}"
+          echo "Running project checks targets: ${linux_check_targets}"
+          echo "Building runtimes: ${linux_runtimes}"
+          echo "Running runtimes checks targets: ${linux_runtime_check_targets}"
+
+          export CC=/opt/llvm/bin/clang
+          export CXX=/opt/llvm/bin/clang++
+
+          ./.ci/monolithic-linux.sh "$(echo ${linux_projects} | tr ' ' ';')" "$(echo ${linux_check_targets})" "$(echo ${linux_runtimes} | tr ' ' ';')" "$(echo ${linux_runtime_check_targets})"

bolt/docs/CommandLineArgumentReference.md

@@ -498,9 +498,12 @@
   Automatically put hot code on 2MB page(s) (hugify) at runtime. No manual call
   to hugify is needed in the binary (which is what --hot-text relies on).
 
-- `--icf`
+- `--icf=<value>`
 
   Fold functions with identical code
+  - `all`:  Enable identical code folding
+  - `none`: Disable identical code folding (default)
+  - `safe`: Enable safe identical code folding
 
 - `--icp`