Merge remote-tracking branch 'upstream/main' into vinay-issue-119281-misc

Author: vinay-deshmukh

.ci/metrics/metrics.py

@@ -130,34 +130,6 @@ def get_per_workflow_metrics(
         workflow_jobs = workflow_run.jobs()
         if workflow_jobs.totalCount == 0:
             continue
-        if workflow_jobs.totalCount > 1:
-            raise ValueError(
-                f"Encountered an unexpected number of jobs: {workflow_jobs.totalCount}"
-            )
-
-        created_at = workflow_jobs[0].created_at
-        started_at = workflow_jobs[0].started_at
-        completed_at = workflow_jobs[0].completed_at
-
-        job_result = int(workflow_jobs[0].conclusion == "success")
-        if job_result:
-            # We still might want to mark the job as a failure if one of the steps
-            # failed. This is required due to use setting continue-on-error in
-            # the premerge pipeline to prevent sending emails while we are
-            # testing the infrastructure.
-            # TODO(boomanaiden154): Remove this once the premerge pipeline is no
-            # longer in a testing state and we can directly assert the workflow
-            # result.
-            for step in workflow_jobs[0].steps:
-                if step.conclusion != "success":
-                    job_result = 0
-                    break
-
-        queue_time = started_at - created_at
-        run_time = completed_at - started_at
-
-        if run_time.seconds == 0:
-            continue
 
         if (
             workflows_to_track[workflow_run.name] is None
@@ -170,20 +142,45 @@ def get_per_workflow_metrics(
         ):
             break
 
-        # The timestamp associated with the event is expected by Grafana to be
-        # in nanoseconds.
-        created_at_ns = int(created_at.timestamp()) * 10**9
-
-        workflow_metrics.append(
-            JobMetrics(
-                workflow_run.name,
-                queue_time.seconds,
-                run_time.seconds,
-                job_result,
-                created_at_ns,
-                workflow_run.id,
+        for workflow_job in workflow_jobs:
+            created_at = workflow_job.created_at
+            started_at = workflow_job.started_at
+            completed_at = workflow_job.completed_at
+
+            job_result = int(workflow_job.conclusion == "success")
+            if job_result:
+                # We still might want to mark the job as a failure if one of the steps
+                # failed. This is required due to use setting continue-on-error in
+                # the premerge pipeline to prevent sending emails while we are
+                # testing the infrastructure.
+                # TODO(boomanaiden154): Remove this once the premerge pipeline is no
+                # longer in a testing state and we can directly assert the workflow
+                # result.
+                for step in workflow_job.steps:
+                    if step.conclusion != "success":
+                        job_result = 0
+                        break
+
+            queue_time = started_at - created_at
+            run_time = completed_at - started_at
+
+            if run_time.seconds == 0:
+                continue
+
+            # The timestamp associated with the event is expected by Grafana to be
+            # in nanoseconds.
+            created_at_ns = int(created_at.timestamp()) * 10**9
+
+            workflow_metrics.append(
+                JobMetrics(
+                    workflow_run.name + "-" + workflow_job.name,
+                    queue_time.seconds,
+                    run_time.seconds,
+                    job_result,
+                    created_at_ns,
+                    workflow_run.id,
+                )
             )
-        )
 
     return workflow_metrics
 

.github/workflows/libcxx-build-and-test.yaml

@@ -48,8 +48,8 @@ jobs:
           'generic-cxx26',
           'generic-modules'
         ]
-        cc: [  'clang-19' ]
-        cxx: [ 'clang++-19' ]
+        cc: [  'clang-20' ]
+        cxx: [ 'clang++-20' ]
         include:
           - config: 'generic-gcc'
             cc: 'gcc-14'
@@ -88,18 +88,18 @@ jobs:
           'generic-cxx20',
           'generic-cxx23'
         ]
-        cc: [ 'clang-19' ]
-        cxx: [ 'clang++-19' ]
+        cc: [ 'clang-20' ]
+        cxx: [ 'clang++-20' ]
         include:
           - config: 'generic-gcc-cxx11'
             cc: 'gcc-14'
             cxx: 'g++-14'
           - config: 'generic-cxx23'
-            cc: 'clang-17'
-            cxx: 'clang++-17'
-          - config: 'generic-cxx26'
             cc: 'clang-18'
             cxx: 'clang++-18'
+          - config: 'generic-cxx26'
+            cc: 'clang-19'
+            cxx: 'clang++-19'
     steps:
       - uses: actions/checkout@v4
       - name: ${{ matrix.config }}
@@ -169,8 +169,8 @@ jobs:
       - name: ${{ matrix.config }}
         run: libcxx/utils/ci/run-buildbot ${{ matrix.config }}
         env:
-          CC: clang-19
-          CXX: clang++-19
+          CC: clang-20
+          CXX: clang++-20
       - uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 # v4.3.0
         if: always()
         with:

.github/workflows/premerge.yaml

@@ -16,7 +16,7 @@ jobs:
     if: github.repository_owner == 'llvm'
     runs-on: llvm-premerge-linux-runners
     concurrency:
-      group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+      group: ${{ github.workflow }}-linux-${{ github.event.pull_request.number || github.sha }}
       cancel-in-progress: true
     steps:
       - name: Checkout LLVM
@@ -70,3 +70,65 @@ jobs:
           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})"
+
+  premerge-checks-windows:
+    if: github.repository_owner == 'llvm'
+    runs-on: llvm-premerge-windows-runners
+    concurrency:
+      group: ${{ github.workflow }}-windows-${{ github.event.pull_request.number || github.sha }}
+      cancel-in-progress: true
+    defaults:
+      run:
+        shell: bash
+    steps:
+      - name: Checkout LLVM
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+      - name: Setup ccache
+        uses: hendrikmuhs/[email protected]
+        with:
+          variant: "sccache"
+          max-size: "2000M"
+      - name: Compute Projects
+        id: vars
+        run: |
+          modified_files=$(git diff --name-only HEAD~1...HEAD)
+          modified_dirs=$(echo "$modified_files" | cut -d'/' -f1 | sort | uniq)
+
+          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 ${all_projects})"
+
+          windows_projects_to_test=$(exclude-windows $(compute-projects-to-test 1 ${modified_projects}))
+          windows_check_targets=$(check-targets ${windows_projects_to_test} | sort | uniq | tr -d '\r' | tr '\n' ' ')
+          windows_projects=$(add-dependencies ${windows_projects_to_test} | sort | uniq | tr -d '\r' | tr '\n' ';')
+
+          if [[ "${windows_projects}" == "" ]]; then
+            echo "No projects to build"
+          fi
+
+          echo "Building projects: ${windows_projects}"
+          echo "Running project checks targets: ${windows_check_targets}"
+
+          echo "windows-projects=${windows_projects}" >> $GITHUB_OUTPUT
+          echo "windows-check-targets=${windows_check_targets}" >> $GITHUB_OUTPUT
+      - name: Build and Test
+        # Mark the job as a success even if the step fails so that people do
+        # not get notified while the new premerge pipeline is in an
+        # experimental state.
+        # TODO(boomanaiden154): Remove this once the pipeline is stable and we
+        # are ready for people to start recieving notifications.
+        continue-on-error: true
+        if: ${{ steps.vars.outputs.windows-projects != '' }}
+        shell: cmd
+        run: |
+          set MAX_PARALLEL_COMPILE_JOBS=64
+          set MAX_PARALLEL_LINK_JOBS=64
+          call C:\\BuildTools\\Common7\\Tools\\VsDevCmd.bat -arch=amd64 -host_arch=amd64
+          bash .ci/monolithic-windows.sh "${{ steps.vars.outputs.windows-projects }}" "${{ steps.vars.outputs.windows-check-targets }}"
+

.github/workflows/release-binaries-all.yml

@@ -83,6 +83,7 @@ jobs:
       matrix:
         runs-on:
           - ubuntu-22.04
+          - ubuntu-22.04-arm
           - macos-13
           - macos-14
 

.github/workflows/release-binaries.yml

@@ -18,6 +18,7 @@ on:
         type: choice
         options:
           - ubuntu-22.04
+          - ubuntu-22.04-arm
           - macos-13
           - macos-14
 
@@ -55,6 +56,7 @@ jobs:
       ref: ${{ steps.vars.outputs.ref }}
       upload: ${{ steps.vars.outputs.upload }}
       target-cmake-flags: ${{ steps.vars.outputs.target-cmake-flags }}
+      ccache: ${{ steps.vars.outputs.ccache }}
       build-flang: ${{ steps.vars.outputs.build-flang }}
       enable-pgo: ${{ steps.vars.outputs.enable-pgo }}
       release-binary-basename: ${{ steps.vars.outputs.release-binary-basename }}
@@ -119,8 +121,16 @@ jobs:
         echo "release-binary-basename=$release_binary_basename" >> $GITHUB_OUTPUT
         echo "release-binary-filename=$release_binary_basename.tar.xz" >> $GITHUB_OUTPUT
 
-        # Detect necessary CMake flags
         target="$RUNNER_OS-$RUNNER_ARCH"
+        # The hendrikmuhs/ccache-action action does not support installing sccache
+        # on arm64 Linux.
+        if [ "$target" = "Linux-ARM64" ]; then
+          echo ccache=ccache >> $GITHUB_OUTPUT
+        else
+          echo ccache=sccache >> $GITHUB_OUTPUT
+        fi
+
+        # Detect necessary CMake flags
         echo "enable-pgo=false" >> $GITHUB_OUTPUT
         target_cmake_flags="-DLLVM_RELEASE_ENABLE_PGO=OFF"
         # The macOS builds try to cross compile some libraries so we need to
@@ -146,7 +156,7 @@ jobs:
         echo "target-cmake-flags=$target_cmake_flags" >> $GITHUB_OUTPUT
         echo "build-flang=$build_flang" >> $GITHUB_OUTPUT
         case "${{ inputs.runs-on }}" in
-          ubuntu-22.04)
+          ubuntu-22.04*)
             build_runs_on="depot-${{ inputs.runs-on }}-16"
             test_runs_on=$build_runs_on
             ;;
@@ -221,12 +231,14 @@ jobs:
       with:
         # Default to 2G to workaround: https://github.com/hendrikmuhs/ccache-action/issues/174
         max-size: 2G
-        key: sccache-${{ runner.os }}-${{ runner.arch }}-release
-        variant: sccache
+        key: ${{ needs.prepare.outputs.ccache }}-${{ runner.os }}-${{ runner.arch }}-release
+        variant: ${{ needs.prepare.outputs.ccache }}
 
     - name: Configure
       id: build
       shell: bash
+      env:
+        CCACHE_BIN: ${{ needs.prepare.outputs.ccache }}
       run: |
         # There were some issues on the ARM64 MacOS runners with trying to build x86 object,
         # so we need to set some extra cmake flags to disable this.
@@ -235,8 +247,8 @@ jobs:
             -C clang/cmake/caches/Release.cmake \
             -DBOOTSTRAP_LLVM_PARALLEL_LINK_JOBS=1 \
             -DBOOTSTRAP_CPACK_PACKAGE_FILE_NAME="${{ needs.prepare.outputs.release-binary-basename }}" \
-            -DCMAKE_C_COMPILER_LAUNCHER=sccache \
-            -DCMAKE_CXX_COMPILER_LAUNCHER=sccache
+            -DCMAKE_C_COMPILER_LAUNCHER=$CCACHE_BIN \
+            -DCMAKE_CXX_COMPILER_LAUNCHER=$CCACHE_BIN
     - name: Build
       shell: bash
       run: |

bolt/lib/Core/BinaryFunction.cpp

@@ -795,7 +795,6 @@ BinaryFunction::processIndirectBranch(MCInst &Instruction, unsigned Size,
 
   auto Begin = Instructions.begin();
   if (BC.isAArch64()) {
-    PreserveNops = BC.HasRelocations;
     // Start at the last label as an approximation of the current basic block.
     // This is a heuristic, since the full set of labels have yet to be
     // determined
@@ -2300,6 +2299,10 @@ Error BinaryFunction::buildCFG(MCPlusBuilder::AllocatorIdTy AllocatorId) {
       BC.errs() << "BOLT-WARNING: failed to post-process indirect branches for "
                 << *this << '\n';
     }
+
+    if (BC.isAArch64())
+      PreserveNops = BC.HasRelocations;
+
     // In relocation mode we want to keep processing the function but avoid
     // optimizing it.
     setSimple(false);

bolt/test/AArch64/remove-nops.s

@@ -0,0 +1,28 @@
+## Verify that llvm-bolt removes nop instructions from functions with indirect
+## branches that have defined control flow.
+
+# REQUIRES: system-linux
+
+# RUN: llvm-mc -filetype=obj -triple aarch64-unknown-unknown %s -o %t.o
+# RUN: %clang %cflags --target=aarch64-unknown-linux %t.o -o %t.exe -Wl,-q
+# RUN: llvm-bolt %t.exe -o %t.bolt --print-normalized 2>&1 | FileCheck %s
+# RUN: llvm-objdump -d --disassemble-symbols=_start %t.bolt \
+# RUN:   | FileCheck %s --check-prefix=CHECK-OBJDUMP
+
+# CHECK-OBJDUMP-LABEL: _start
+# CHECK-OBJDUMP-NOT: nop
+
+  .section .text
+  .align 4
+  .globl _start
+  .type  _start, %function
+_start:
+# CHECK-LABEL: Binary Function "_start"
+  nop
+# CHECK-NOT: nop
+  br      x0
+# CHECK: br x0 # TAILCALL
+.size _start, .-_start
+
+## Force relocation mode.
+  .reloc 0, R_AARCH64_NONE

clang-tools-extra/clangd/Diagnostics.cpp

@@ -577,7 +577,17 @@ std::vector<Diag> StoreDiags::take(const clang::tidy::ClangTidyContext *Tidy) {
   for (auto &Diag : Output) {
     if (const char *ClangDiag = getDiagnosticCode(Diag.ID)) {
       // Warnings controlled by -Wfoo are better recognized by that name.
-      StringRef Warning = DiagnosticIDs::getWarningOptionForDiag(Diag.ID);
+      StringRef Warning = [&] {
+        if (OrigSrcMgr) {
+          return OrigSrcMgr->getDiagnostics()
+              .getDiagnosticIDs()
+              ->getWarningOptionForDiag(Diag.ID);
+        }
+        if (!DiagnosticIDs::IsCustomDiag(Diag.ID))
+          return DiagnosticIDs{}.getWarningOptionForDiag(Diag.ID);
+        return StringRef{};
+      }();
+
       if (!Warning.empty()) {
         Diag.Name = ("-W" + Warning).str();
       } else {
@@ -894,20 +904,23 @@ void StoreDiags::flushLastDiag() {
   Output.push_back(std::move(*LastDiag));
 }
 
-bool isBuiltinDiagnosticSuppressed(unsigned ID,
-                                   const llvm::StringSet<> &Suppress,
-                                   const LangOptions &LangOpts) {
+bool isDiagnosticSuppressed(const clang::Diagnostic &Diag,
+                            const llvm::StringSet<> &Suppress,
+                            const LangOptions &LangOpts) {
   // Don't complain about header-only stuff in mainfiles if it's a header.
   // FIXME: would be cleaner to suppress in clang, once we decide whether the
   //        behavior should be to silently-ignore or respect the pragma.
-  if (ID == diag::pp_pragma_sysheader_in_main_file && LangOpts.IsHeaderFile)
+  if (Diag.getID() == diag::pp_pragma_sysheader_in_main_file &&
+      LangOpts.IsHeaderFile)
     return true;
 
-  if (const char *CodePtr = getDiagnosticCode(ID)) {
+  if (const char *CodePtr = getDiagnosticCode(Diag.getID())) {
     if (Suppress.contains(normalizeSuppressedCode(CodePtr)))
       return true;
   }
-  StringRef Warning = DiagnosticIDs::getWarningOptionForDiag(ID);
+  StringRef Warning =
+      Diag.getDiags()->getDiagnosticIDs()->getWarningOptionForDiag(
+          Diag.getID());
   if (!Warning.empty() && Suppress.contains(Warning))
     return true;
   return false;