Rebase

Created using spr 1.3.5

Author: alexey-bataev

.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:

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;

clang-tools-extra/clangd/Diagnostics.h

@@ -181,11 +181,11 @@ class StoreDiags : public DiagnosticConsumer {
 };
 
 /// Determine whether a (non-clang-tidy) diagnostic is suppressed by config.
-bool isBuiltinDiagnosticSuppressed(unsigned ID,
-                                   const llvm::StringSet<> &Suppressed,
-                                   const LangOptions &);
+bool isDiagnosticSuppressed(const clang::Diagnostic &Diag,
+                            const llvm::StringSet<> &Suppressed,
+                            const LangOptions &);
 /// Take a user-specified diagnostic code, and convert it to a normalized form
-/// stored in the config and consumed by isBuiltinDiagnosticsSuppressed.
+/// stored in the config and consumed by isDiagnosticsSuppressed.
 ///
 /// (This strips err_ and -W prefix so we can match with or without them.)
 llvm::StringRef normalizeSuppressedCode(llvm::StringRef);

clang-tools-extra/clangd/ParsedAST.cpp

@@ -342,7 +342,7 @@ void applyWarningOptions(llvm::ArrayRef<std::string> ExtraArgs,
       if (Enable) {
         if (Diags.getDiagnosticLevel(ID, SourceLocation()) <
             DiagnosticsEngine::Warning) {
-          auto Group = DiagnosticIDs::getGroupForDiag(ID);
+          auto Group = Diags.getDiagnosticIDs()->getGroupForDiag(ID);
           if (!Group || !EnabledGroups(*Group))
             continue;
           Diags.setSeverity(ID, diag::Severity::Warning, SourceLocation());
@@ -585,8 +585,8 @@ ParsedAST::build(llvm::StringRef Filename, const ParseInputs &Inputs,
     ASTDiags.setLevelAdjuster([&](DiagnosticsEngine::Level DiagLevel,
                                   const clang::Diagnostic &Info) {
       if (Cfg.Diagnostics.SuppressAll ||
-          isBuiltinDiagnosticSuppressed(Info.getID(), Cfg.Diagnostics.Suppress,
-                                        Clang->getLangOpts()))
+          isDiagnosticSuppressed(Info, Cfg.Diagnostics.Suppress,
+                                 Clang->getLangOpts()))
         return DiagnosticsEngine::Ignored;
 
       auto It = OverriddenSeverity.find(Info.getID());

clang-tools-extra/clangd/Preamble.cpp

@@ -622,8 +622,8 @@ buildPreamble(PathRef FileName, CompilerInvocation CI,
   PreambleDiagnostics.setLevelAdjuster([&](DiagnosticsEngine::Level DiagLevel,
                                            const clang::Diagnostic &Info) {
     if (Cfg.Diagnostics.SuppressAll ||
-        isBuiltinDiagnosticSuppressed(Info.getID(), Cfg.Diagnostics.Suppress,
-                                      CI.getLangOpts()))
+        isDiagnosticSuppressed(Info, Cfg.Diagnostics.Suppress,
+                               CI.getLangOpts()))
       return DiagnosticsEngine::Ignored;
     switch (Info.getID()) {
     case diag::warn_no_newline_eof:

clang-tools-extra/clangd/unittests/ConfigCompileTests.cpp

@@ -298,20 +298,41 @@ TEST_F(ConfigCompileTests, DiagnosticSuppression) {
                                    "unreachable-code", "unused-variable",
                                    "typecheck_bool_condition",
                                    "unexpected_friend", "warn_alloca"));
-  EXPECT_TRUE(isBuiltinDiagnosticSuppressed(
-      diag::warn_unreachable, Conf.Diagnostics.Suppress, LangOptions()));
+  clang::DiagnosticsEngine DiagEngine(new DiagnosticIDs, nullptr,
+                                      new clang::IgnoringDiagConsumer);
+
+  using Diag = clang::Diagnostic;
+  {
+    auto D = DiagEngine.Report(diag::warn_unreachable);
+    EXPECT_TRUE(isDiagnosticSuppressed(
+        Diag{&DiagEngine, D}, Conf.Diagnostics.Suppress, LangOptions()));
+  }
   // Subcategory not respected/suppressed.
-  EXPECT_FALSE(isBuiltinDiagnosticSuppressed(
-      diag::warn_unreachable_break, Conf.Diagnostics.Suppress, LangOptions()));
-  EXPECT_TRUE(isBuiltinDiagnosticSuppressed(
-      diag::warn_unused_variable, Conf.Diagnostics.Suppress, LangOptions()));
-  EXPECT_TRUE(isBuiltinDiagnosticSuppressed(diag::err_typecheck_bool_condition,
-                                            Conf.Diagnostics.Suppress,
-                                            LangOptions()));
-  EXPECT_TRUE(isBuiltinDiagnosticSuppressed(
-      diag::err_unexpected_friend, Conf.Diagnostics.Suppress, LangOptions()));
-  EXPECT_TRUE(isBuiltinDiagnosticSuppressed(
-      diag::warn_alloca, Conf.Diagnostics.Suppress, LangOptions()));
+  {
+    auto D = DiagEngine.Report(diag::warn_unreachable_break);
+    EXPECT_FALSE(isDiagnosticSuppressed(
+        Diag{&DiagEngine, D}, Conf.Diagnostics.Suppress, LangOptions()));
+  }
+  {
+    auto D = DiagEngine.Report(diag::warn_unused_variable);
+    EXPECT_TRUE(isDiagnosticSuppressed(
+        Diag{&DiagEngine, D}, Conf.Diagnostics.Suppress, LangOptions()));
+  }
+  {
+    auto D = DiagEngine.Report(diag::err_typecheck_bool_condition);
+    EXPECT_TRUE(isDiagnosticSuppressed(
+        Diag{&DiagEngine, D}, Conf.Diagnostics.Suppress, LangOptions()));
+  }
+  {
+    auto D = DiagEngine.Report(diag::err_unexpected_friend);
+    EXPECT_TRUE(isDiagnosticSuppressed(
+        Diag{&DiagEngine, D}, Conf.Diagnostics.Suppress, LangOptions()));
+  }
+  {
+    auto D = DiagEngine.Report(diag::warn_alloca);
+    EXPECT_TRUE(isDiagnosticSuppressed(
+        Diag{&DiagEngine, D}, Conf.Diagnostics.Suppress, LangOptions()));
+  }
 
   Frag.Diagnostics.Suppress.emplace_back("*");
   EXPECT_TRUE(compileAndApply());