[PATCH] D111971: [clang] Allocate 2 bits to store the constexpr specifier kind when serializing

[Nathan Ridge via Phabricator via cfe-commits]

nridge created this revision.
Herald added subscribers: usaxena95, kadircet, arphaman.
nridge requested review of this revision.
Herald added projects: clang, clang-tools-extra.
Herald added a subscriber: cfe-commits.

Now that consteval and constinit are possible values, 1 bit
is no longer enough.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D111971

Files:
  clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp
  clang/lib/Serialization/ASTWriterDecl.cpp


Index: clang/lib/Serialization/ASTWriterDecl.cpp
===================================================================
--- clang/lib/Serialization/ASTWriterDecl.cpp
+++ clang/lib/Serialization/ASTWriterDecl.cpp
@@ -2260,7 +2260,7 @@
   Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Defaulted
   Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ExplicitlyDefaulted
   Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ImplicitReturnZero
-  Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constexpr
+  Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Constexpr
   Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // UsesSEHTry
   Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // SkippedBody
   Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // MultiVersion
Index: clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp
+++ clang-tools-extra/clangd/unittests/DiagnosticsTests.cpp
@@ -672,6 +672,24 @@
               ElementsAre(AllOf(Diag(Test.range(), "'main' must return 'int'"),
                                 Not(WithFix(_)))));
 }
+TEST(DiagnosticsTest, Consteval) {
+  Annotations Header(R"cpp(
+    struct Container {
+      consteval Container() {
+        Push();
+      }
+      consteval void Push() {}
+    };
+  )cpp");
+  Annotations Main(R"cpp(
+    #include "a.h"
+    constexpr Container c = Container();
+  )cpp");
+  TestTU TU = TestTU::withCode(Main.code());
+  TU.ExtraArgs.push_back("-std=c++20");
+  TU.AdditionalFiles = {{"a.h", std::string(Header.code())}};
+  EXPECT_THAT(*TU.build().getDiagnostics(), IsEmpty());
+}
 
 TEST(ClangdTest, MSAsm) {
   // Parsing MS assembly tries to use the target MCAsmInfo, which we don't link.


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