Merge branch 'main' into ckoparkar/156853

* main: (1562 commits)
  Document Policy on supporting newer C++ standard in LLVM codebase (llvm#156823)
  [MLIR][Transform][SMT] Introduce transform.smt.constrain_params (llvm#159450)
  Reapply "[compiler-rt] Remove %T from shared object substitutions (llvm#155302)"
  [NFC] [IndVarSimplify] Add non-overflowing usub test (llvm#159683)
  [Github] Remove separate tools checkout from pr-code workflows (llvm#159967)
  [clang] fix using enum redecl in template regression (llvm#159996)
  [DAG] Skip `mstore` combine for `<1 x ty>` vectors (llvm#159915)
  [mlir] Expose optional `PatternBenefit` to `func` populate functions (NFC) (llvm#159986)
  [LV] Set correct costs for interleave group members.
  [clang] ast-dump: use template pattern for `instantiated_from` (llvm#159952)
  [ARM] ha-alignstack-call.ll - regenerate test checks (llvm#159988)
  [LLD][MachO] Silence warning when building with MSVC
  [llvm][Analysis] Silence warning when building with MSVC
  [LV] Skip select cost for invariant divisors in legacy cost model.
  [Clang] Fix an error-recovery crash after d1a80de (llvm#159976)
  [VPlanPatternMatch] Introduce m_ConstantInt (llvm#159558)
  [GlobalISel] Add G_ABS computeKnownBits (llvm#154413)
  [gn build] Port 4cabd1e
  Reland "[clangd] Add feature modules registry" (llvm#154836)
  [LV] Also handle non-uniform scalarized loads when processing AddrDefs.
  ...

Author: ckoparkar

.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()

.github/CODEOWNERS

@@ -132,6 +132,9 @@
 /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/dependabot.yml

@@ -1090,6 +1090,14 @@ clang:openmp:
   - llvm/unittests/Frontend/OpenMP*
   - llvm/test/Transforms/OpenMP/**
 
+clang:temporal-safety:
+  - clang/include/clang/Analysis/Analyses/LifetimeSafety*
+  - clang/lib/Analysis/LifetimeSafety*
+  - clang/unittests/Analysis/LifetimeSafety*
+  - clang/test/Sema/*lifetime-safety*
+  - clang/test/Sema/*lifetime-analysis*
+  - clang/test/Analysis/LifetimeSafety/**
+
 clang:as-a-library:
   - clang/tools/libclang/**
   - clang/bindings/**

.github/new-prs-labeler.yml

@@ -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-windows.yml

@@ -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-ci-container.yml

@@ -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/build-metrics-container.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'

.github/workflows/docs.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@192325c86100d080feab897ff886c34abd4c83a3 # v3.30.3
+        with:
+          languages: actions
+          queries: security-extended
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@192325c86100d080feab897ff886c34abd4c83a3 # v3.30.3