llvm-project

735209c0 - [NVPTX] Unify and extend barrier{.cta} intrinsic support (#140615)

[NVPTX] Unify and extend barrier{.cta} intrinsic support (#140615) Our current intrinsic support for barrier intrinsics is confusing and incomplete, with multiple intrinsics mapping to the same instruction and intrinsic names not clearly conveying intrinsic semantics. Further, we lack support for some variants. This change unifies the IR representation to a single consistently named set of intrinsics. - llvm.nvvm.barrier.cta.sync.aligned.all(i32) - llvm.nvvm.barrier.cta.sync.aligned(i32, i32) - llvm.nvvm.barrier.cta.arrive.aligned(i32, i32) - llvm.nvvm.barrier.cta.sync.all(i32) - llvm.nvvm.barrier.cta.sync(i32, i32) - llvm.nvvm.barrier.cta.arrive(i32, i32) The following Auto-Upgrade rules are used to maintain compatibility with IR using the legacy intrinsics: * llvm.nvvm.barrier0 --> llvm.nvvm.barrier.cta.sync.aligned.all(0) * llvm.nvvm.barrier.n --> llvm.nvvm.barrier.cta.sync.aligned.all(x) * llvm.nvvm.bar.sync --> llvm.nvvm.barrier.cta.sync.aligned.all(x) * llvm.nvvm.barrier --> llvm.nvvm.barrier.cta.sync.aligned(x, y) * llvm.nvvm.barrier.sync --> llvm.nvvm.barrier.cta.sync.all(x) * llvm.nvvm.barrier.sync.cnt --> llvm.nvvm.barrier.cta.sync(x, y)