Merge branch 'llvm:main' into implement-jump-to-cursor

Author: da-viper

.ci/metrics/metrics.py

@@ -215,25 +215,14 @@ def buildkite_get_metrics(
             if job["name"] not in BUILDKITE_WORKFLOW_TO_TRACK:
                 continue
 
+            # Don't count canceled jobs.
+            if job["canceled_at"]:
+                continue
+
             created_at = dateutil.parser.isoparse(job["created_at"])
-            scheduled_at = (
-                created_at
-                if job["scheduled_at"] is None
-                else dateutil.parser.isoparse(job["scheduled_at"])
-            )
-            started_at = (
-                scheduled_at
-                if job["started_at"] is None
-                else dateutil.parser.isoparse(job["started_at"])
-            )
-            if job["canceled_at"] is None:
-                finished_at = (
-                    started_at
-                    if job["finished_at"] is None
-                    else dateutil.parser.isoparse(job["finished_at"])
-                )
-            else:
-                finished_at = dateutil.parser.isoparse(job["canceled_at"])
+            scheduled_at = dateutil.parser.isoparse(job["scheduled_at"])
+            started_at = dateutil.parser.isoparse(job["started_at"])
+            finished_at = dateutil.parser.isoparse(job["finished_at"])
 
             job_name = BUILDKITE_WORKFLOW_TO_TRACK[job["name"]]
             queue_time = (started_at - scheduled_at).seconds

.ci/monolithic-linux.sh

@@ -90,23 +90,6 @@ if [[ "${runtimes}" != "" ]]; then
   INSTALL_DIR="${BUILD_DIR}/install"
   mkdir -p ${RUNTIMES_BUILD_DIR}
 
-  echo "--- cmake runtimes C++03"
-
-  cmake -S "${MONOREPO_ROOT}/runtimes" -B "${RUNTIMES_BUILD_DIR}" -GNinja \
-      -D CMAKE_C_COMPILER="${INSTALL_DIR}/bin/clang" \
-      -D CMAKE_CXX_COMPILER="${INSTALL_DIR}/bin/clang++" \
-      -D LLVM_ENABLE_RUNTIMES="${runtimes}" \
-      -D LIBCXX_CXX_ABI=libcxxabi \
-      -D CMAKE_BUILD_TYPE=RelWithDebInfo \
-      -D CMAKE_INSTALL_PREFIX="${INSTALL_DIR}" \
-      -D LIBCXX_TEST_PARAMS="std=c++03" \
-      -D LIBCXXABI_TEST_PARAMS="std=c++03" \
-      -D LLVM_LIT_ARGS="${lit_args}"
-
-  echo "--- ninja runtimes C++03"
-
-  ninja -vC "${RUNTIMES_BUILD_DIR}" ${runtime_targets}
-
   echo "--- cmake runtimes C++26"
 
   rm -rf "${RUNTIMES_BUILD_DIR}"
@@ -127,7 +110,11 @@ if [[ "${runtimes}" != "" ]]; then
 
   echo "--- cmake runtimes clang modules"
 
-  rm -rf "${RUNTIMES_BUILD_DIR}"
+  # We don't need to do a clean build of runtimes, because LIBCXX_TEST_PARAMS
+  # and LIBCXXABI_TEST_PARAMS only affect lit configuration, which successfully
+  # propagates without a clean build. Other that those two variables, builds
+  # are supposed to be the same.
+
   cmake -S "${MONOREPO_ROOT}/runtimes" -B "${RUNTIMES_BUILD_DIR}" -GNinja \
       -D CMAKE_C_COMPILER="${INSTALL_DIR}/bin/clang" \
       -D CMAKE_CXX_COMPILER="${INSTALL_DIR}/bin/clang++" \
@@ -140,6 +127,6 @@ if [[ "${runtimes}" != "" ]]; then
       -D LLVM_LIT_ARGS="${lit_args}"
 
   echo "--- ninja runtimes clang modules"
-  
+
   ninja -vC "${RUNTIMES_BUILD_DIR}" ${runtime_targets}
 fi

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

@@ -27,9 +27,9 @@ jobs:
           # The arch names should match the names used on dockerhub.
           # See https://github.com/docker-library/official-images#architectures-other-than-amd64
           - arch: amd64
-            runs-on: depot-ubuntu-22.04-16
+            runs-on: depot-ubuntu-24.04-16
           - arch: arm64v8
-            runs-on: depot-ubuntu-22.04-arm-16
+            runs-on: depot-ubuntu-24.04-arm-16
     steps:
       - name: Checkout LLVM
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

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

@@ -15,7 +15,7 @@ jobs:
     if: >-
       github.repository_owner == 'llvm' &&
       github.event.label.name == 'infra:commit-access-request'
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
         with:

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

@@ -12,7 +12,7 @@ permissions:
 jobs:
   commit-access-review:
     if: github.repository_owner == 'llvm'
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
       - name: Fetch LLVM sources
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2

.github/workflows/issue-write.yml

@@ -39,7 +39,7 @@ jobs:
 
       - name: 'Comment on PR'
         if: steps.download-artifact.outputs.artifact-id != ''
-        uses: actions/github-script@ffc2c79a5b2490bd33e0a41c1de74b877714d736 # v3.2.0
+        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |
@@ -49,7 +49,7 @@ jobs:
               return;
             }
 
-            let runInfo = await github.actions.getWorkflowRun({
+            let runInfo = await github.rest.actions.getWorkflowRun({
               owner: context.repo.owner,
               repo: context.repo.repo,
               run_id: context.payload.workflow_run.id
@@ -122,7 +122,7 @@ jobs:
                 // Security check: Ensure that this comment was created by
                 // the github-actions bot, so a malicious input won't overwrite
                 // a user's comment.
-                github.issues.getComment({
+                github.rest.issues.getComment({
                   owner: context.repo.owner,
                   repo: context.repo.repo,
                   comment_id: comment.id
@@ -132,7 +132,7 @@ jobs:
                     console.log("Invalid comment id: " + comment.id);
                     return;
                   }
-                  github.issues.updateComment({
+                  github.rest.issues.updateComment({
                     owner: context.repo.owner,
                     repo: context.repo.repo,
                     issue_number: pr_number,
@@ -141,7 +141,7 @@ jobs:
                   });
                 });
               } else {
-                github.issues.createComment({
+                github.rest.issues.createComment({
                   owner: context.repo.owner,
                   repo: context.repo.repo,
                   issue_number: pr_number,

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

@@ -137,7 +137,7 @@ jobs:
           'generic-hardening-mode-fast',
           'generic-hardening-mode-fast-with-abi-breaks',
           'generic-merged',
-          'generic-modules-lsv',
+          'generic-modules-cxx17-lsv',
           'generic-no-exceptions',
           'generic-no-experimental',
           'generic-no-filesystem',

.github/workflows/release-asset-audit.yml

@@ -19,7 +19,7 @@ permissions:
 jobs:
   audit:
     name: "Release Asset Audit"
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     if: github.repository == 'llvm/llvm-project'
     steps:
       - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 #v4.1.6

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

@@ -57,7 +57,7 @@ jobs:
   setup-variables:
     if: >-
       (github.event_name != 'pull_request' || github.event.action != 'closed')
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     outputs:
       release-version: ${{ steps.vars.outputs.release-version }}
       upload: ${{ steps.vars.outputs.upload }}
@@ -85,6 +85,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        # We use ubuntu-22.04 rather than the latest version to make the built
+        # binaries more portable (eg functional aginast older glibc).
         runs-on:
           - ubuntu-22.04
           - ubuntu-22.04-arm

.github/workflows/release-binaries.yml

@@ -16,6 +16,8 @@ on:
         description: "Runner to use for the build"
         required: true
         type: choice
+        # We use ubuntu-22.04 rather than the latest version to make the built
+        # binaries more portable (eg functional aginast older glibc).
         options:
           - ubuntu-22.04
           - ubuntu-22.04-arm
@@ -276,7 +278,7 @@ jobs:
     if: >-
       github.event_name != 'pull_request' &&
       needs.prepare.outputs.upload == 'true'
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     permissions:
       contents: write # For release uploads
       id-token: write     # For artifact attestations

.github/workflows/scorecard.yml

@@ -31,12 +31,12 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
 
       - name: "Run analysis"
-        uses: ossf/scorecard-action@0864cf19026789058feabb7e87baa5f140aac736 # v2.3.1
+        uses: ossf/scorecard-action@f49aabe0b5af0936a0987cfb85d86b75731b0186 # v2.4.1
         with:
           results_file: results.sarif
           results_format: sarif
@@ -49,14 +49,14 @@ jobs:
       # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
       # format to the repository Actions tab.
       - name: "Upload artifact"
-        uses: actions/upload-artifact@3cea5372237819ed00197afe530f5a7ea3e805c8 # v3.1.0
+        uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08 # v4.6.0
         with:
           name: SARIF file
           path: results.sarif
           retention-days: 5
 
       # Upload the results to GitHub's code scanning dashboard.
       - name: "Upload to code-scanning"
-        uses: github/codeql-action/upload-sarif@17573ee1cc1b9d061760f3a006fc4aac4f944fd5 # v2.2.4
+        uses: github/codeql-action/upload-sarif@80f993039571a6de66594ecaa432875a6942e8e0 # v2.20.6
         with:
           sarif_file: results.sarif

bolt/include/bolt/Core/MCPlusBuilder.h

@@ -551,6 +551,16 @@ class MCPlusBuilder {
     return Analysis->isReturn(Inst);
   }
 
+  /// Returns the registers that are trusted at function entry.
+  ///
+  /// Each register should be treated as if a successfully authenticated
+  /// pointer was written to it before entering the function (i.e. the
+  /// pointer is safe to jump to as well as to be signed).
+  virtual SmallVector<MCPhysReg> getTrustedLiveInRegs() const {
+    llvm_unreachable("not implemented");
+    return {};
+  }
+
   virtual ErrorOr<MCPhysReg> getAuthenticatedReg(const MCInst &Inst) const {
     llvm_unreachable("not implemented");
     return getNoRegister();

bolt/include/bolt/Core/Relocation.h

@@ -35,7 +35,16 @@ enum { R_X86_64_converted_reloc_bit = 0x80 };
 namespace bolt {
 
 /// Relocation class.
-struct Relocation {
+class Relocation {
+public:
+  Relocation(uint64_t Offset, MCSymbol *Symbol, uint32_t Type, uint64_t Addend,
+             uint64_t Value)
+      : Offset(Offset), Symbol(Symbol), Type(Type), Optional(false),
+        Addend(Addend), Value(Value) {}
+
+  Relocation()
+      : Offset(0), Symbol(0), Type(0), Optional(0), Addend(0), Value(0) {}
+
   static Triple::ArchType Arch; /// set by BinaryContext ctor.
 
   /// The offset of this relocation in the object it is contained in.
@@ -47,6 +56,11 @@ struct Relocation {
   /// Relocation type.
   uint32_t Type;
 
+private:
+  /// Relocations added by optimizations can be optional.
+  bool Optional = false;
+
+public:
   /// The offset from the \p Symbol base used to compute the final
   /// value of this relocation.
   uint64_t Addend;
@@ -58,6 +72,10 @@ struct Relocation {
   /// Return size in bytes of the given relocation \p Type.
   static size_t getSizeForType(uint32_t Type);
 
+  /// Some relocations added by optimizations are optional, meaning they can be
+  /// omitted under certain circumstances.
+  void setOptional() { Optional = true; }
+
   /// Return size of this relocation.
   size_t getSize() const { return getSizeForType(Type); }