Merge tag 'llvmorg-11.0.0-rc3' into rustc/11.0-2020-08-20

Tag 11.0.0-rc3

clang-tools-extra/clang-tidy/tool/run-clang-tidy.py

@@ -84,7 +84,7 @@ def get_tidy_invocation(f, clang_tidy_binary, checks, tmpdir, build_path,
                         extra_arg, extra_arg_before, quiet, config):
   """Gets a command line for clang-tidy."""
   start = [clang_tidy_binary]
-  if allow_enabling_alpha_checkers is not None:
+  if allow_enabling_alpha_checkers:
     start.append('-allow-enabling-analyzer-alpha-checkers')
   if header_filter is not None:
     start.append('-header-filter=' + header_filter)

clang-tools-extra/clangd/ClangdLSPServer.cpp

@@ -592,7 +592,10 @@ void ClangdLSPServer::onInitialize(const InitializeParams &Params,
             {"codeActionProvider", std::move(CodeActionProvider)},
             {"completionProvider",
              llvm::json::Object{
-                 {"allCommitCharacters", " \t()[]{}<>:;,+-/*%^&#?.=\"'|"},
+                 {"allCommitCharacters",
+                  {" ", "\t", "(", ")", "[", "]", "{",  "}", "<",
+                   ">", ":",  ";", ",", "+", "-", "/",  "*", "%",
+                   "^", "&",  "#", "?", ".", "=", "\"", "'", "|"}},
                  {"resolveProvider", false},
                  // We do extra checks, e.g. that > is part of ->.
                  {"triggerCharacters", {".", "<", ">", ":", "\"", "/"}},

clang-tools-extra/clangd/ConfigYAML.cpp

@@ -38,6 +38,7 @@ class Parser {
     DictParser Dict("Config", this);
     Dict.handle("If", [&](Node &N) { parse(F.If, N); });
     Dict.handle("CompileFlags", [&](Node &N) { parse(F.CompileFlags, N); });
+    Dict.handle("Index", [&](Node &N) { parse(F.Index, N); });
     Dict.parse(N);
     return !(N.failed() || HadError);
   }

clang-tools-extra/clangd/test/initialize-params.test

@@ -7,7 +7,35 @@
 # CHECK-NEXT:    "capabilities": {
 # CHECK-NEXT:      "codeActionProvider": true,
 # CHECK-NEXT:      "completionProvider": {
-# CHECK-NEXT:        "allCommitCharacters": " \t()[]{}<>:;,+-/*%^&#?.=\"'|",
+# CHECK-NEXT:        "allCommitCharacters": [
+# CHECK-NEXT:          " ",
+# CHECK-NEXT:          "\t",
+# CHECK-NEXT:          "(",
+# CHECK-NEXT:          ")",
+# CHECK-NEXT:          "[",
+# CHECK-NEXT:          "]",
+# CHECK-NEXT:          "{",
+# CHECK-NEXT:          "}",
+# CHECK-NEXT:          "<",
+# CHECK-NEXT:          ">",
+# CHECK-NEXT:          ":",
+# CHECK-NEXT:          ";",
+# CHECK-NEXT:          ",",
+# CHECK-NEXT:          "+",
+# CHECK-NEXT:          "-",
+# CHECK-NEXT:          "/",
+# CHECK-NEXT:          "*",
+# CHECK-NEXT:          "%",
+# CHECK-NEXT:          "^",
+# CHECK-NEXT:          "&",
+# CHECK-NEXT:          "#",
+# CHECK-NEXT:          "?",
+# CHECK-NEXT:          ".",
+# CHECK-NEXT:          "=",
+# CHECK-NEXT:          "\"",
+# CHECK-NEXT:          "'",
+# CHECK-NEXT:          "|"
+# CHECK-NEXT:        ],
 # CHECK-NEXT:        "resolveProvider": false,
 # CHECK-NEXT:        "triggerCharacters": [
 # CHECK-NEXT:          ".",

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

@@ -47,16 +47,21 @@ CompileFlags: { Add: [foo, bar] }
   Add: |
     b
     az
+---
+Index:
+  Background: Skip
   )yaml";
   auto Results = Fragment::parseYAML(YAML, "config.yaml", Diags.callback());
   EXPECT_THAT(Diags.Diagnostics, IsEmpty());
-  ASSERT_EQ(Results.size(), 2u);
-  EXPECT_FALSE(Results.front().If.HasUnrecognizedCondition);
-  EXPECT_THAT(Results.front().If.PathMatch, ElementsAre(Val("abc")));
-  EXPECT_THAT(Results.front().CompileFlags.Add,
-              ElementsAre(Val("foo"), Val("bar")));
+  ASSERT_EQ(Results.size(), 3u);
+  EXPECT_FALSE(Results[0].If.HasUnrecognizedCondition);
+  EXPECT_THAT(Results[0].If.PathMatch, ElementsAre(Val("abc")));
+  EXPECT_THAT(Results[0].CompileFlags.Add, ElementsAre(Val("foo"), Val("bar")));
+
+  EXPECT_THAT(Results[1].CompileFlags.Add, ElementsAre(Val("b\naz\n")));
 
-  EXPECT_THAT(Results.back().CompileFlags.Add, ElementsAre(Val("b\naz\n")));
+  ASSERT_TRUE(Results[2].Index.Background);
+  EXPECT_EQ("Skip", *Results[2].Index.Background.getValue());
 }
 
 TEST(ParseYAML, Locations) {

clang-tools-extra/docs/ReleaseNotes.rst

@@ -1,19 +1,13 @@
-====================================================
-Extra Clang Tools 11.0.0 (In-Progress) Release Notes
-====================================================
+======================================
+Extra Clang Tools 11.0.0 Release Notes
+======================================
 
 .. contents::
    :local:
    :depth: 3
 
 Written by the `LLVM Team <https://llvm.org/>`_
 
-.. warning::
-
-   These are in-progress notes for the upcoming Extra Clang Tools 11 release.
-   Release notes for previous releases can be found on
-   `the Download Page <https://releases.llvm.org/download.html>`_.
-
 Introduction
 ============
 
@@ -27,23 +21,13 @@ For more information about Clang or LLVM, including information about
 the latest release, please see the `Clang Web Site <https://clang.llvm.org>`_ or
 the `LLVM Web Site <https://llvm.org>`_.
 
-Note that if you are reading this file from a Git checkout or the
-main Clang web page, this document applies to the *next* release, not
-the current one. To see the release notes for a specific release, please
-see the `releases page <https://llvm.org/releases/>`_.
-
 What's New in Extra Clang Tools 11.0.0?
 =======================================
 
 Some of the major new features and improvements to Extra Clang Tools are listed
 here. Generic improvements to Extra Clang Tools as a whole or to its underlying
 infrastructure are described first, followed by tool-specific sections.
 
-Major New Features
-------------------
-
-...
-
 Improvements to clangd
 ----------------------
 
@@ -238,21 +222,6 @@ Miscellaneous
 
 - Too many stability and correctness fixes to mention.
 
-Improvements to clang-doc
--------------------------
-
-The improvements are...
-
-Improvements to clang-query
----------------------------
-
-The improvements are...
-
-Improvements to clang-rename
-----------------------------
-
-The improvements are...
-
 Improvements to clang-tidy
 --------------------------
 
@@ -439,26 +408,3 @@ Other improvements
 
 - For `run-clang-tidy.py` add option to use alpha checkers from
   `clang-analyzer`.
-
-Improvements to include-fixer
------------------------------
-
-The improvements are...
-
-Improvements to clang-include-fixer
------------------------------------
-
-The improvements are...
-
-Improvements to modularize
---------------------------
-
-The improvements are...
-
-Improvements to pp-trace
-------------------------
-
-The improvements are...
-
-Clang-tidy visual studio plugin
--------------------------------

clang/docs/CommandGuide/clang.rst

@@ -385,7 +385,7 @@ Code Generation Options
     :option:`-Og` Like :option:`-O1`. In future versions, this option might
     disable different optimizations in order to improve debuggability.
 
-    :option:`-O` Equivalent to :option:`-O2`.
+    :option:`-O` Equivalent to :option:`-O1`.
 
     :option:`-O4` and higher
 

clang/docs/LTOVisibility.rst

@@ -35,6 +35,16 @@ other classes receive hidden LTO visibility. Classes with internal linkage
 (e.g. classes declared in unnamed namespaces) also receive hidden LTO
 visibility.
 
+During the LTO link, all classes with public LTO visibility will be refined
+to hidden LTO visibility when the ``--lto-whole-program-visibility`` lld linker
+option is applied (``-plugin-opt=whole-program-visibility`` for gold). This flag
+can be used to defer specifying whether classes have hidden LTO visibility until
+link time, to allow bitcode objects to be shared by different LTO links.
+Due to an implementation limitation, symbols associated with classes with hidden
+LTO visibility may still be exported from the binary when using this flag. It is
+unsafe to refer to these symbols, and their visibility may be relaxed to hidden
+in a future compiler release.
+
 A class defined in a translation unit built without LTO receives public
 LTO visibility regardless of its object file visibility, linkage or other
 attributes.