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// RUN: mlir-opt %s \
// RUN: | mlir-opt -gpu-kernel-outlining \
// RUN: | mlir-opt -pass-pipeline='builtin.module(gpu.module(strip-debuginfo,convert-gpu-to-nvvm,gpu-to-cubin))' \
// RUN: | mlir-opt -gpu-async-region -gpu-to-llvm \
// RUN: | mlir-opt -async-to-async-runtime -async-runtime-ref-counting \
// RUN: | mlir-opt -convert-async-to-llvm -convert-func-to-llvm \
// RUN: | mlir-cpu-runner \
// RUN: --shared-libs=%mlir_cuda_runtime \
// RUN: --shared-libs=%mlir_async_runtime \
// RUN: --shared-libs=%mlir_runner_utils \
// RUN: --entry-point-result=void -O0 \
// RUN: | FileCheck %s
func.func @main() {
%c0 = arith.constant 0 : index
%c1 = arith.constant 1 : index
%count = arith.constant 2 : index
// initialize h0 on host
%h0 = memref.alloc(%count) : memref<?xi32>
%h0_unranked = memref.cast %h0 : memref<?xi32> to memref<*xi32>
gpu.host_register %h0_unranked : memref<*xi32>
%v0 = arith.constant 42 : i32
memref.store %v0, %h0[%c0] : memref<?xi32>
memref.store %v0, %h0[%c1] : memref<?xi32>
// copy h0 to b0 on device.
%t0, %f0 = async.execute () -> !async.value<memref<?xi32>> {
%b0 = gpu.alloc(%count) : memref<?xi32>
gpu.memcpy %b0, %h0 : memref<?xi32>, memref<?xi32>
async.yield %b0 : memref<?xi32>
}
// copy h0 to b1 and b2 (fork)
%t1, %f1 = async.execute [%t0] (
%f0 as %b0 : !async.value<memref<?xi32>>
) -> !async.value<memref<?xi32>> {
%b1 = gpu.alloc(%count) : memref<?xi32>
gpu.memcpy %b1, %b0 : memref<?xi32>, memref<?xi32>
async.yield %b1 : memref<?xi32>
}
%t2, %f2 = async.execute [%t0] (
%f0 as %b0 : !async.value<memref<?xi32>>
) -> !async.value<memref<?xi32>> {
%b2 = gpu.alloc(%count) : memref<?xi32>
gpu.memcpy %b2, %b0 : memref<?xi32>, memref<?xi32>
async.yield %b2 : memref<?xi32>
}
// h0 = b1 + b2 (join).
%t3 = async.execute [%t1, %t2] (
%f1 as %b1 : !async.value<memref<?xi32>>,
%f2 as %b2 : !async.value<memref<?xi32>>
) {
gpu.launch blocks(%bx, %by, %bz) in (%grid_x = %c1, %grid_y = %c1, %grid_z = %c1)
threads(%tx, %ty, %tz) in (%block_x = %count, %block_y = %c1, %block_z = %c1) {
%v1 = memref.load %b1[%tx] : memref<?xi32>
%v2 = memref.load %b2[%tx] : memref<?xi32>
%sum = arith.addi %v1, %v2 : i32
memref.store %sum, %h0[%tx] : memref<?xi32>
gpu.terminator
}
async.yield
}
async.await %t3 : !async.token
// CHECK: [84, 84]
call @printMemrefI32(%h0_unranked) : (memref<*xi32>) -> ()
return
}
func.func private @printMemrefI32(memref<*xi32>)
|
