[all-commits] [llvm/llvm-project] 753f7e: [OpenCL] Fix an infinite loop in builidng AddrSpac...

[Changpeng Fang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 753f7e814514ddb2bb2fd837549d5958cf0ef343
      https://github.com/llvm/llvm-project/commit/753f7e814514ddb2bb2fd837549d5958cf0ef343
  Author: Changpeng Fang <changpeng.fang at amd.com>
  Date:   2024-05-20 (Mon, 20 May 2024)

  Changed paths:
    M clang/include/clang/AST/ASTContext.h
    M clang/lib/AST/ASTContext.cpp
    A clang/test/CodeGenOpenCLCXX/array-type-infinite-loop.clcpp

  Log Message:
  -----------
  [OpenCL] Fix an infinite loop in builidng AddrSpaceQualType (#92612)

In building AddrSpaceQualType
(https://github.com/llvm/llvm-project/pull/90048), there is a bug in
removeAddrSpaceQualType() for arrays. Arrays are weird because
qualifiers on the element type also count as qualifiers on the type, so
getSingleStepDesugaredType() can't remove the sugar on arrays. This
results in an infinite loop in removeAddrSpaceQualType. To fix the
issue, we use ASTContext::getUnqualifiedArrayType instead, which strips
the qualifier off the element type, then reconstruct the array type.



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