v0.8.0a1

Notable changes from 0.7 to 0.8.0a1

• LLVM 14 is now the default target.
• QIR evaluation has been removed. Simulation of QIR is now available via the qir-runner sparse simulator.
• BasicQisBuilder is now written in Python.
• All QIS instructions are available in the pyqir.qis submodule
  • barrier, ccx, cx, cz, h, if_result, mz, reset, rx, ry, rz, s, s_adj, swap, t, t_adj, x, y, z
  • Of these,barrier, ccx, and swap are new.
• PyQIR can generate QIR compatible with the QIR base profile preliminary spec
  • Module flags can now be generated
  • Attributes on functions can now be added and queried.
  • RT instructions are available in the pyqir.rt submodule
    • Output recording functions are now built-in: array_record_output, result_record_output, and tuple_record_output
  • Execution environment call, initialize, is now built-in
  • EntryPoint attribute is now entry_point
  • requiredQubits attribute is now num_required_qubits
  • requiredResults attribute is now num_required_results
  • __quantum__qis__mz__body signature has been updated. Its result parameter is now marked writeonly and the function call now has the irreversible attribute:
    before:
    declare void @__quantum__qis__mz__body(%Qubit*, %Result*) #1
    after:
    declare void @__quantum__qis__mz__body(%Qubit*, %Result* writeonly) #1
attributes #1 = { "irreversible" }

Technical Changes

• Inkwell has been removed as a dependency. Qirlib now uses LLVM-SYS and a custom wrapper around the LLVM C++ APIs.

What's Changed

• Bump version to 0.8.0a1 by @SamarSha in #213
• Fix warning in anltr example installation by @idavis in #214
• Remove Inkwell by @SamarSha in #216
• Fix Module.bitcode() use-after-free by @SamarSha in #219
• Fix typechecking with mypy>=0.990 by @SamarSha in #218
• Removing evaluator by @idavis in #220
• Changing build to target LLVM 14 by @idavis in #222
• Adding QIS and RT functions by @idavis in #221
• Adding param, module, and function metadata by @idavis in #223

Full Changelog: v0.7.0...v0.8.0a1