llvm-project

ae9a5b07 - [SystemZ] Add TPEI instruction and Associated Facility (#89372)

[SystemZ] Add TPEI instruction and Associated Facility (#89372) This PR adds the TPEI (Test Pending External Interruption) instruction, along with the facility that contains it. This is a millicoded system instruction that is not used for code generation, so it will be used exclusively by the Assembler and Disassembler. Accordingly, this commit also adds tests for both.