ac005e16f6
This reverts commit 14cd1339318b16e08c1363ec6896bd7d1e4ae281. The buildbot failure seems to have been a cmake issue which has been discussed in more detail in this Discourse post: https://discourse.llvm.org/t/cmake-doesnt-regenerate-all-tablegen-target-files/87901 If any buildbots fail to select arbitrary intrinsics with this patch, it's worth considering using clean builds with ccache instead of incremental builds, as recommended here: https://llvm.org/docs/HowToAddABuilder.html#:~:text=Use%20CCache%20and%20NOT%20incremental%20builds The original commit message for this patch: Add the llvm.amdgcn.call.whole.wave intrinsic for calling whole wave functions. This will take as its first argument the callee with the amdgpu_gfx_whole_wave calling convention, followed by the call parameters which must match the signature of the callee except for the first function argument (the i1 original EXEC mask, which doesn't need to be passed in). Indirect calls are not allowed. Make direct calls to amdgpu_gfx_whole_wave functions a verifier error. Tail calls are handled in a future patch.