[all-commits] [llvm/llvm-project] 8153de: PR48606: The lifetime of a constexpr heap allocati...

Richard Smith via All-commits all-commits at lists.llvm.org
Mon Feb 8 18:03:47 PST 2021


  Branch: refs/heads/release/12.x
  Home:   https://github.com/llvm/llvm-project
  Commit: 8153dee37272a73b1ed74ac1bc12422fac8ef033
      https://github.com/llvm/llvm-project/commit/8153dee37272a73b1ed74ac1bc12422fac8ef033
  Author: Richard Smith <richard at metafoo.co.uk>
  Date:   2021-02-08 (Mon, 08 Feb 2021)

  Changed paths:
    M clang/lib/AST/ExprConstant.cpp
    M clang/test/SemaCXX/cxx2a-constexpr-dynalloc.cpp

  Log Message:
  -----------
  PR48606: The lifetime of a constexpr heap allocation always started
during the same evaluation.

It looks like the only case for which this matters is determining
whether mutable subobjects of a heap allocation can be modified during
constant evaluation.

(cherry picked from commit 21e8bb83253e1a2f4b6fad9b53cafe8c530a38e2)




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