The work for 4991491 added new accessors to the platform-specific Assembler classes to portably access bool values in C++ data structures from assembly code. However, similar accessors were not added to C1 and C2's IRs. This makes it impossible to portably access bool fields from the compilers' generated code. Either new factory methods creating existing Instructions (C1) or Ideal nodes (C2), or additional information in C1's and C2's type system about the C++ type bool, are needed.

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