[all-commits] [llvm/llvm-project] 5537b2: Make CompoundStmtBitfields::NumStmts not a bit-field

[Serge Pavlov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5537b22ccbdc562929949844f9f816cf720e5205
      https://github.com/llvm/llvm-project/commit/5537b22ccbdc562929949844f9f816cf720e5205
  Author: Serge Pavlov <sepavloff at gmail.com>
  Date:   2022-05-20 (Fri, 20 May 2022)

  Changed paths:
    M clang/include/clang/AST/Stmt.h
    M clang/lib/AST/Stmt.cpp
    M clang/lib/Serialization/ASTReaderStmt.cpp

  Log Message:
  -----------
  Make CompoundStmtBitfields::NumStmts not a bit-field

Number of statements in CompoundStmt is kept in a bit-field of the common
part of Stmt. The field has 24 bits for the number. To allocate a new
bit field (as attempted in https://reviews.llvm.org/D123952), this
number must be reduced, maximal number of statements in a compound
statement becomes smaller. It can result in compilation errors of some
programs.

With this change the number of statements is kept in a field of type
'unsigned int' rather than in bit-field. To make room in CompoundStmtBitfields
LBraceLoc is moved to fields of CompoundStmt.

Differential Revision: https://reviews.llvm.org/D125635