[Flang] Loop Interchange

.ci/all_requirements.txt

@@ -194,9 +194,9 @@ ml-dtypes==0.5.1 ; python_version < "3.13" \
     --hash=sha256:d13755f8e8445b3870114e5b6240facaa7cb0c3361e54beba3e07fa912a6e12b \
     --hash=sha256:fd918d4e6a4e0c110e2e05be7a7814d10dc1b95872accbf6512b80a109b71ae1
     # via -r mlir/python/requirements.txt
-nanobind==2.7.0 \
-    --hash=sha256:73b12d0e751d140d6c1bf4b215e18818a8debfdb374f08dc3776ad208d808e74 \
-    --hash=sha256:f9f1b160580c50dcf37b6495a0fd5ec61dc0d95dae5f8004f87dd9ad7eb46b34
+nanobind==2.9.2 \
+    --hash=sha256:c37957ffd5eac7eda349cff3622ecd32e5ee1244ecc912c99b5bc8188bafd16e \
+    --hash=sha256:e7608472de99d375759814cab3e2c94aba3f9ec80e62cfef8ced495ca5c27d6e
     # via -r mlir/python/requirements.txt
 numpy==2.0.2 \
     --hash=sha256:0123ffdaa88fa4ab64835dcbde75dcdf89c453c922f18dced6e27c90d1d0ec5a \
@@ -383,6 +383,10 @@ swig==4.3.1 \
     --hash=sha256:efec16327029f682f649a26da726bb0305be8800bd0f1fa3e81bf0769cf5b476 \
     --hash=sha256:fc496c0d600cf1bb2d91e28d3d6eae9c4301e5ea7a0dec5a4281b5efed4245a8
     # via -r lldb/test/requirements.txt
+typing-extensions==4.15.0 \
+    --hash=sha256:0cea48d173cc12fa28ecabc3b837ea3cf6f38c6d1136f85cbaaf598984861466 \
+    --hash=sha256:f0fa19c6845758ab08074a0cfa8b7aecb71c999ca73d62883bc25cc018c4e548
+    # via -r mlir/python/requirements.txt
 urllib3==2.5.0 \
     --hash=sha256:3fc47733c7e419d4bc3f6b3dc2b4f890bb743906a30d56ba4a5bfa4bbff92760 \
     --hash=sha256:e6b01673c0fa6a13e374b50871808eb3bf7046c4b125b216f6bf1cc604cff0dc

.ci/compute_projects.py

@@ -150,6 +150,7 @@
     "mlir": "check-mlir",
     "openmp": "check-openmp",
     "polly": "check-polly",
+    "lit": "check-lit",
 }
 
 RUNTIMES = {"libcxx", "libcxxabi", "libunwind", "compiler-rt", "libc", "flang-rt"}
@@ -166,8 +167,12 @@
     ("llvm", "utils", "gn"): "gn",
     (".github", "workflows", "premerge.yaml"): ".ci",
     ("third-party",): ".ci",
+    ("llvm", "utils", "lit"): "lit",
 }
 
+# Projects that should run tests but cannot be explicitly built.
+SKIP_BUILD_PROJECTS = ["CIR", "lit"]
+
 # Projects that should not run any tests. These need to be metaprojects.
 SKIP_PROJECTS = ["docs", "gn"]
 
@@ -315,7 +320,9 @@ def get_env_variables(modified_files: list[str], platform: str) -> Set[str]:
     # clang build, but it requires an explicit option to enable. We set that
     # option here, and remove it from the projects_to_build list.
     enable_cir = "ON" if "CIR" in projects_to_build else "OFF"
-    projects_to_build.discard("CIR")
+    # Remove any metaprojects from the list of projects to build.
+    for project in SKIP_BUILD_PROJECTS:
+        projects_to_build.discard(project)
 
     # We use a semicolon to separate the projects/runtimes as they get passed
     # to the CMake invocation and thus we need to use the CMake list separator

.ci/compute_projects_test.py

@@ -413,6 +413,30 @@ def test_third_party_benchmark(self):
             "check-cxx check-cxxabi check-unwind",
         )
 
+    def test_lit(self):
+        env_variables = compute_projects.get_env_variables(
+            ["llvm/utils/lit/CMakeLists.txt"], "Linux"
+        )
+        self.assertEqual(
+            env_variables["projects_to_build"],
+            "bolt;clang;clang-tools-extra;flang;lld;lldb;llvm;mlir;polly",
+        )
+        self.assertEqual(
+            env_variables["project_check_targets"],
+            "check-bolt check-clang check-clang-tools check-flang check-lit check-lld check-lldb check-llvm check-mlir check-polly",
+        )
+        self.assertEqual(
+            env_variables["runtimes_to_build"], "libcxx;libcxxabi;libunwind"
+        )
+        self.assertEqual(
+            env_variables["runtimes_check_targets"],
+            "",
+        )
+        self.assertEqual(
+            env_variables["runtimes_check_targets_needs_reconfig"],
+            "check-cxx check-cxxabi check-unwind",
+        )
+
 
 if __name__ == "__main__":
     unittest.main()

.ci/monolithic-linux.sh

@@ -32,8 +32,6 @@ enable_cir="${6}"
 lit_args="-v --xunit-xml-output ${BUILD_DIR}/test-results.xml --use-unique-output-file-name --timeout=1200 --time-tests --succinct"
 
 start-group "CMake"
-export PIP_BREAK_SYSTEM_PACKAGES=1
-pip install -q -r "${MONOREPO_ROOT}"/.ci/all_requirements.txt
 
 # Set the system llvm-symbolizer as preferred.
 export LLVM_SYMBOLIZER_PATH=`which llvm-symbolizer`

.ci/utils.sh

@@ -52,3 +52,10 @@ function start-group {
     echo "Starting $groupname"
   fi
 }
+
+export PIP_BREAK_SYSTEM_PACKAGES=1
+pip install -q -r "${MONOREPO_ROOT}"/.ci/all_requirements.txt
+
+if [[ "$GITHUB_ACTIONS" != "" ]]; then
+  python .ci/cache_lit_timing_files.py download
+fi

.clang-format

@@ -1 +1,2 @@
 BasedOnStyle: LLVM
+LineEnding: LF

.github/CODEOWNERS

@@ -59,6 +59,10 @@
 /mlir/**/BufferizableOpInterfaceImpl.* @matthias-springer
 /mlir/Dialect/*/Transforms/Bufferize.cpp @matthias-springer
 
+# DLTI Dialect in MLIR
+/mlir/**/Dialect/DLTI @rolfmorel
+/mlir/**/DataLayoutInterfaces.* @rolfmorel
+
 # Linalg Dialect in MLIR.
 /mlir/include/mlir/Dialect/Linalg @dcaballe @nicolasvasilache @rengolin
 /mlir/lib/Dialect/Linalg @dcaballe @nicolasvasilache @rengolin
@@ -96,9 +100,9 @@
 /mlir/lib/Dialect/Tensor/Transforms/* @hanhanW @nicolasvasilache
 
 # Transform Dialect in MLIR.
-/mlir/include/mlir/Dialect/Transform/* @ftynse @nicolasvasilache
-/mlir/lib/Dialect/Transform/* @ftynse @nicolasvasilache
-/mlir/**/*TransformOps* @ftynse @nicolasvasilache
+/mlir/include/mlir/Dialect/Transform/* @ftynse @nicolasvasilache @rolfmorel
+/mlir/lib/Dialect/Transform/* @ftynse @nicolasvasilache @rolfmorel
+/mlir/**/*TransformOps* @ftynse @nicolasvasilache @rolfmorel
 
 # SPIR-V Dialect in MLIR.
 /mlir/**/SPIRV/ @antiagainst @kuhar
@@ -132,6 +136,9 @@
 /mlir/**/Transforms/Mem2Reg.* @moxinilian
 /mlir/**/Transforms/SROA.* @moxinilian
 
+# MLIR IRDL-related
+/mlir/**/*IRDL* @moxinilian
+
 # BOLT
 /bolt/ @aaupov @maksfb @rafaelauler @ayermolo @yota9 @paschalis-mpeis @yozhu
 

.github/renovate.json

@@ -0,0 +1,12 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": [
+    "config:recommended"
+  ],
+  "includePaths": [".github/**"],
+  "schedule": "* 0 * * 1",
+  "minimumReleaseAge": "3 days",
+  "assignees": ["boomanaiden154"],
+  "ignorePaths": [".github/workflows/containers/**"],
+  "groupName": "[Github] Update GHA Dependencies"
+}

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

@@ -44,7 +44,7 @@ jobs:
         run: |
           docker save  ${{ steps.vars.outputs.container-name-tag }} >  ${{ steps.vars.outputs.container-filename }}
       - name: Upload container image
-        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: container
           path: ${{ steps.vars.outputs.container-filename }}
@@ -61,7 +61,7 @@ jobs:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Download container
-        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
+        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
         with:
           name: container
       - name: Push Container

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

@@ -64,7 +64,7 @@ jobs:
           podman save ${{ steps.vars.outputs.container-name-agent-tag }} > ${{ steps.vars.outputs.container-agent-filename }}
 
       - name: Upload container image
-        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: container-${{ matrix.arch }}
           path: "*.tar"
@@ -88,7 +88,7 @@ jobs:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Download container
-        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
+        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
 
       - name: Push Container
         run: |

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

@@ -49,7 +49,7 @@ jobs:
         run: |
           podman save  ${{ steps.vars.outputs.container-name-tag }} >  ${{ steps.vars.outputs.container-filename }}
       - name: Upload Container Image
-        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: container
           path: ${{ steps.vars.outputs.container-filename }}
@@ -66,7 +66,7 @@ jobs:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
       - name: Download Container
-        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
+        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5.0.0
         with:
           name: container
       - name: Push Container

.github/workflows/check-ci.yml

@@ -26,7 +26,7 @@ jobs:
         with:
           sparse-checkout: .ci
       - name: Setup Python
-        uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38 # v5.4.0
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: 3.13
           cache: 'pip'

.github/workflows/ci-post-commit-analyzer.yml

@@ -44,7 +44,7 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
 
       - name: Setup ccache
-        uses: hendrikmuhs/ccache-action@a1209f81afb8c005c13b4296c32e363431bffea5 # v1.2.17
+        uses: hendrikmuhs/ccache-action@bfa03e1de4d7f7c3e80ad9109feedd05c4f5a716 # v1.2.19
         with:
           # A full build of llvm, clang, lld, and lldb takes about 250MB
           # of ccache space. There's not much reason to have more than this,
@@ -87,7 +87,7 @@ jobs:
           scan-build --generate-index-only build/analyzer-results
 
       - name: Upload Results
-        uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         if: always()
         with:
           name: analyzer-results

.github/workflows/commit-access-review.yml

@@ -28,7 +28,7 @@ jobs:
           python3 .github/workflows/commit-access-review.py $GITHUB_TOKEN
 
       - name: Upload Triage List
-        uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: triagers
           path: triagers.log

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

@@ -1,8 +1,8 @@
-FROM docker.io/library/ubuntu:24.04 as base
+FROM docker.io/library/ubuntu:24.04 AS base
 ENV LLVM_SYSROOT=/opt/llvm
 
-FROM base as stage1-toolchain
-ENV LLVM_VERSION=21.1.0
+FROM base AS stage1-toolchain
+ENV LLVM_VERSION=21.1.1
 
 RUN apt-get update && \
     apt-get install -y \
@@ -37,7 +37,7 @@ RUN cmake -B ./build -G Ninja ./llvm \
 
 RUN ninja -C ./build stage2-clang-bolt stage2-install-distribution && ninja -C ./build install-distribution
 
-FROM base as ci-container
+FROM base AS ci-container
 
 COPY --from=stage1-toolchain $LLVM_SYSROOT $LLVM_SYSROOT
 
@@ -62,6 +62,7 @@ RUN apt-get update && \
     # Having a symlink from python to python3 enables code sharing between
     # the Linux and Windows pipelines.
     python3-pip \
+    python3-venv \
     file \
     tzdata \
     python-is-python3 && \
@@ -97,7 +98,7 @@ RUN echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers
 USER gha
 WORKDIR /home/gha
 
-FROM ci-container as ci-container-agent
+FROM ci-container AS ci-container-agent
 
 ENV GITHUB_RUNNER_VERSION=2.328.0
 

.github/workflows/docs.yml

@@ -60,7 +60,7 @@ jobs:
           fetch-depth: 2
       - name: Get subprojects that have doc changes
         id: docs-changed-subprojects
-        uses: step-security/changed-files@3dbe17c78367e7d60f00d78ae6781a35be47b4a1 # v45.0.1
+        uses: tj-actions/changed-files@ed68ef82c095e0d48ec87eccea555d944a631a4c # v46.0.5
         with:
           skip_initial_fetch: true
           base_sha: 'HEAD~1'
@@ -95,9 +95,9 @@ jobs:
             workflow:
               - '.github/workflows/docs.yml'
       - name: Setup Python env
-        uses: actions/setup-python@42375524e23c412d93fb67b49958b491fce71c38 # v5.4.0
+        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           cache: 'pip'
           cache-dependency-path: 'llvm/docs/requirements-hashed.txt'
       - name: Install python dependencies
@@ -209,7 +209,7 @@ jobs:
           mkdir built-docs/flang
           cp -r flang-build/docs/* built-docs/flang/
       - name: Upload docs
-        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: docs-output
           path: built-docs/

.github/workflows/email-check.yaml

@@ -39,7 +39,7 @@ jobs:
           [{"body" : "$COMMENT"}]
           EOF
 
-      - uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         if: always()
         with:
           name: workflow-args

.github/workflows/gha-codeql.yml

@@ -0,0 +1,37 @@
+name: Github Actions CodeQL
+
+permissions:
+  contents: read
+
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - '.github/**'
+  schedule:
+    - cron: '30 0 * * *'
+
+concurrency:
+  group: ${{ github.workflow }}
+  cancel-in-progress: true
+
+jobs:
+  codeql:
+    name: 'Github Actions CodeQL'
+    runs-on: ubuntu-24.04
+    permissions:
+      security-events: write
+    steps:
+      - name: Checkout LLVM
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+        with:
+          sparse-checkout: |
+            .github/
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@303c0aef88fc2fe5ff6d63d3b1596bfd83dfa1f9 # v3.30.4
+        with:
+          languages: actions
+          queries: security-extended
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@303c0aef88fc2fe5ff6d63d3b1596bfd83dfa1f9 # v3.30.4

.github/workflows/hlsl-test-all.yaml

@@ -80,7 +80,7 @@ jobs:
             ninja check-hlsl-unit
             ninja ${{ inputs.TestTarget }}
       - name: Publish Test Results
-        uses: EnricoMi/publish-unit-test-result-action/macos@170bf24d20d201b842d7a52403b73ed297e6645b # v2
+        uses: EnricoMi/publish-unit-test-result-action/macos@3a74b2957438d0b6e2e61d67b05318aa25c9e6c6 # v2.20.0
         if: always() && runner.os == 'macOS'
         with:
           comment_mode: off