[CIR] Add support for byteswap intrinsic

llvm / clangir

A new (MLIR based) high-level IR for clang.

https://clangir.org

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[CIR] Add support for byteswap intrinsic #523

Closed Lancern closed 7 months ago

Lancern commented 7 months ago

This PR adds support for the following intrinsic functions:

__builtin_bswap{16, 32, 64}
_byteswap_{ushort, ulong, uint64}

This PR adds a new cir.bswap operation to represent such an intrinsic call. CIRGen and LLVMIR lowering for the new operation is included in this PR.

bcardosolopes commented 7 months ago

Nice, this needs some rebasing post Nathan's latest upstream update.

Lancern commented 7 months ago

Rebased onto the latest main.