llvm

0e1e814f - [offload-arch] Print Intel GPU architecture names instead of device names (#23048)

[offload-arch] Print Intel GPU architecture names instead of device names (#23048) The output of `offload-arch` is expected to be a list of names that are legal `--offload-arch` parameters, because the driver runs the utility for `--offload-arch=native` and feeds every line it prints to `StringToOffloadArch`. For Intel GPUs the utility printed the name of the device instead, e.g. `Intel(R) Data Center GPU Max 1100`, which is not a legal parameter. The utility now queries the GMDID of each device with `zeDeviceGetProperties` and the device IP version extension (`ZE_STRUCTURE_TYPE_DEVICE_IP_VERSION_EXT`), and translates the architecture and release components of it into an architecture name: * A device listed in the new `IntelGPUArch.def` gets a human-friendly name, which covers almost every device a user is likely to have. The revision is deliberately not part of the lookup, so a new stepping of a known architecture keeps the same name. * Anything else is named after all three components of its GMDID, e.g. `xe_40.11.0`, so that a GPU newer than the compiler is still usable. The table lives in its own `.def` file so that it can later be generated from the data published by the GPU driver — `ocloc query SUPPORTED_DEVICES` reports exactly these pairs. Where several devices share an architecture and a release, the first entry in the file names the whole group, which keeps the generator from having to pick a representative device. Verified on an Intel Data Center GPU Max 1100 (GMDID 12.60.7): `offload-arch` prints `xe-pvc` where it used to print the device name. Note that the driver does not accept these names yet: `StringToOffloadArch` currently knows only `bmg_g21` among Intel GPUs, and `OffloadArchToTriple` returns an empty triple for Intel, so `--offload-arch=native` still fails after the utility prints a correct name. Wiring that up is separate work. 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 5 <noreply@anthropic.com>