Merge branch 'main' into ankurahir/clang-frontend-crash

Author: Ankur-0429

clang/bindings/python/tests/cindex/test_diagnostics.py

@@ -79,7 +79,7 @@ def test_diagnostic_category(self):
         self.assertEqual(d.location.line, 1)
         self.assertEqual(d.location.column, 11)
 
-        self.assertEqual(d.category_number, 2)
+        self.assertEqual(d.category_number, 3)
         self.assertEqual(d.category_name, "Semantic Issue")
 
     def test_diagnostic_option(self):
@@ -123,7 +123,7 @@ def test_diagnostic_string_format(self):
         self.assertEqual(str(d), "t.c:1:26: error: expected ';' after struct")
         self.assertEqual(
             d.format(0b111111),
-            "t.c:1:26: error: expected ';' after struct [3, Parse Issue]",
+            "t.c:1:26: error: expected ';' after struct [2, Parse Issue]",
         )
         with self.assertRaises(ValueError):
             d.format(0b1000000)

clang/docs/ReleaseNotes.rst

@@ -159,6 +159,8 @@ C23 Feature Support
   which clarified that a compound literal used within a function prototype is
   treated as if the compound literal were within the body rather than at file
   scope.
+- Fixed a bug where you could not cast a null pointer constant to type
+  ``nullptr_t``. Fixes #GH133644.
 
 Non-comprehensive list of changes in this release
 -------------------------------------------------
@@ -311,6 +313,8 @@ Improvements to Clang's diagnostics
 
   Fixes #GH61635
 
+- Split diagnosing base class qualifiers from the ``-Wignored-Qualifiers`` diagnostic group into a new ``-Wignored-base-class-qualifiers`` diagnostic group (which is grouped under ``-Wignored-qualifiers``). Fixes #GH131935.
+
 Improvements to Clang's time-trace
 ----------------------------------
 
@@ -337,6 +341,9 @@ Bug Fixes in This Version
 - Fixed a problematic case with recursive deserialization within ``FinishedDeserializing()`` where
   ``PassInterestingDeclsToConsumer()`` was called before the declarations were safe to be passed. (#GH129982)
 - Fixed a modules crash where an explicit Constructor was deserialized. (#GH132794)
+- Defining an integer literal suffix (e.g., ``LL``) before including
+  ``<stdint.h>`` in a freestanding build no longer causes invalid token pasting
+  when using the ``INTn_C`` macros. (#GH85995)
 
 Bug Fixes to Compiler Builtins
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

clang/include/clang/Basic/CMakeLists.txt

@@ -8,6 +8,11 @@ macro(clang_diag_gen component)
     -gen-clang-diags-enums -clang-component=${component}
     SOURCE Diagnostic.td
     TARGET ClangDiagnostic${component}Enums)
+
+  clang_tablegen(Diagnostic${component}CompatIDs.inc
+    -gen-clang-diags-compat-ids -clang-component=${component}
+    SOURCE Diagnostic.td
+    TARGET ClangDiagnostic${component}CompatIDs)
 endmacro(clang_diag_gen)
 
 clang_diag_gen(Analysis)
@@ -31,6 +36,11 @@ clang_tablegen(DiagnosticIndexName.inc -gen-clang-diags-index-name
   SOURCE Diagnostic.td
   TARGET ClangDiagnosticIndexName)
 
+clang_tablegen(DiagnosticAllCompatIDs.inc
+  -gen-clang-diags-compat-ids
+  SOURCE Diagnostic.td
+  TARGET ClangDiagnosticAllCompatIDs)
+
 clang_tablegen(AttrList.inc -gen-clang-attr-list
   -I ${CMAKE_CURRENT_SOURCE_DIR}/../../
   SOURCE Attr.td

clang/include/clang/Basic/Diagnostic.td

@@ -155,6 +155,19 @@ class DefaultWarnNoWerror {
 }
 class DefaultRemark { Severity DefaultSeverity = SEV_Remark; }
 
+class CompatWarningId<string name, int std, string diag, string diag_pre> {
+  string Component = ?;
+  string Name = name;
+  string Diag = diag;
+  string DiagPre = diag_pre;
+  int Std = std;
+
+  // This is unused, but Tablegen will complain if it's missing because we define
+  // the compatibility ids in the same place as the other diagnostics (which means
+  // that we'll be inside a 'let CategoryName = "" in { ... }' block).
+  string CategoryName = ?;
+}
+
 // C++ compatibility warnings.
 multiclass CXXCompat<
     string message,
@@ -178,6 +191,11 @@ multiclass CXXCompat<
                                      "CXX98Compat",
                                      "CXXPre"#std_ver#"Compat"))>,
         DefaultIgnore;
+
+    def : CompatWarningId<
+        NAME, std_ver,
+        "compat_cxx"#std_ver#"_"#NAME,
+        "compat_pre_cxx"#std_ver#"_"#NAME>;
 }
 
 // These generate pairs of C++ compatibility warnings of the form:

clang/include/clang/Basic/DiagnosticAST.h

@@ -36,6 +36,18 @@ enum {
 #undef DIAG_ENUM_ITEM
 #undef DIAG_ENUM
 } // end namespace diag
+
+namespace diag_compat {
+#define DIAG_COMPAT_IDS_BEGIN() enum {
+#define DIAG_COMPAT_IDS_END()                                                  \
+  }                                                                            \
+  ;
+#define DIAG_COMPAT_ID(IDX, NAME, ...) NAME = IDX,
+#include "clang/Basic/DiagnosticASTCompatIDs.inc"
+#undef DIAG_COMPAT_ID
+#undef DIAG_COMPAT_IDS_BEGIN
+#undef DIAG_COMPAT_IDS_END
+} // end namespace diag_compat
 } // end namespace clang
 
 #endif // LLVM_CLANG_BASIC_DIAGNOSTICAST_H

clang/include/clang/Basic/DiagnosticAnalysis.h

@@ -35,6 +35,18 @@ enum {
 #undef DIAG_ENUM_ITEM
 #undef DIAG_ENUM
 } // end namespace diag
+
+namespace diag_compat {
+#define DIAG_COMPAT_IDS_BEGIN() enum {
+#define DIAG_COMPAT_IDS_END()                                                  \
+  }                                                                            \
+  ;
+#define DIAG_COMPAT_ID(IDX, NAME, ...) NAME = IDX,
+#include "clang/Basic/DiagnosticAnalysisCompatIDs.inc"
+#undef DIAG_COMPAT_ID
+#undef DIAG_COMPAT_IDS_BEGIN
+#undef DIAG_COMPAT_IDS_END
+} // end namespace diag_compat
 } // end namespace clang
 
 #endif // LLVM_CLANG_BASIC_DIAGNOSTICANALYSIS_H

clang/include/clang/Basic/DiagnosticComment.h

@@ -36,6 +36,18 @@ enum {
 #undef DIAG_ENUM_ITEM
 #undef DIAG_ENUM
 } // end namespace diag
+
+namespace diag_compat {
+#define DIAG_COMPAT_IDS_BEGIN() enum {
+#define DIAG_COMPAT_IDS_END()                                                  \
+  }                                                                            \
+  ;
+#define DIAG_COMPAT_ID(IDX, NAME, ...) NAME = IDX,
+#include "clang/Basic/DiagnosticCommentCompatIDs.inc"
+#undef DIAG_COMPAT_ID
+#undef DIAG_COMPAT_IDS_BEGIN
+#undef DIAG_COMPAT_IDS_END
+} // end namespace diag_compat
 } // end namespace clang
 
 #endif // LLVM_CLANG_BASIC_DIAGNOSTICCOMMENT_H

clang/include/clang/Basic/DiagnosticCrossTU.h

@@ -36,6 +36,18 @@ enum {
 #undef DIAG_ENUM_ITEM
 #undef DIAG_ENUM
 } // end namespace diag
+
+namespace diag_compat {
+#define DIAG_COMPAT_IDS_BEGIN() enum {
+#define DIAG_COMPAT_IDS_END()                                                  \
+  }                                                                            \
+  ;
+#define DIAG_COMPAT_ID(IDX, NAME, ...) NAME = IDX,
+#include "clang/Basic/DiagnosticCrossTUCompatIDs.inc"
+#undef DIAG_COMPAT_ID
+#undef DIAG_COMPAT_IDS_BEGIN
+#undef DIAG_COMPAT_IDS_END
+} // end namespace diag_compat
 } // end namespace clang
 
 #endif // LLVM_CLANG_BASIC_DIAGNOSTICCROSSTU_H

clang/include/clang/Basic/DiagnosticDriver.h

@@ -36,6 +36,18 @@ enum {
 #undef DIAG_ENUM_ITEM
 #undef DIAG_ENUM
 } // end namespace diag
+
+namespace diag_compat {
+#define DIAG_COMPAT_IDS_BEGIN() enum {
+#define DIAG_COMPAT_IDS_END()                                                  \
+  }                                                                            \
+  ;
+#define DIAG_COMPAT_ID(IDX, NAME, ...) NAME = IDX,
+#include "clang/Basic/DiagnosticDriverCompatIDs.inc"
+#undef DIAG_COMPAT_ID
+#undef DIAG_COMPAT_IDS_BEGIN
+#undef DIAG_COMPAT_IDS_END
+} // end namespace diag_compat
 } // end namespace clang
 
 #endif // LLVM_CLANG_BASIC_DIAGNOSTICDRIVER_H

clang/include/clang/Basic/DiagnosticFrontend.h

@@ -36,6 +36,18 @@ enum {
 #undef DIAG_ENUM_ITEM
 #undef DIAG_ENUM
 } // end namespace diag
+
+namespace diag_compat {
+#define DIAG_COMPAT_IDS_BEGIN() enum {
+#define DIAG_COMPAT_IDS_END()                                                  \
+  }                                                                            \
+  ;
+#define DIAG_COMPAT_ID(IDX, NAME, ...) NAME = IDX,
+#include "clang/Basic/DiagnosticFrontendCompatIDs.inc"
+#undef DIAG_COMPAT_ID
+#undef DIAG_COMPAT_IDS_BEGIN
+#undef DIAG_COMPAT_IDS_END
+} // end namespace diag_compat
 } // end namespace clang
 
 #endif // LLVM_CLANG_BASIC_DIAGNOSTICFRONTEND_H