Add GPU workgroup barrier via __sync_threads and Barrier.arrive_and_w… - #27
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K-T0BIAS merged 1 commit intoSep 16, 2026
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…ait. Lower both call forms to the same GLSL barrier and memoryBarrierShared through a CallPlugin, wire Call expr-stmts on the GPU path, and export a sync stub.
K-T0BIAS
merged commit Sep 16, 2026
d3203ac
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4-native-gpu-support-cthreads-for-vulkanspir-v
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Adds a workgroup-scoped GPU barrier on the
@Gpupath. CUDA-style__sync_threads()and beginner-friendlyBarrier.arrive_and_wait()both lowerto the same GLSL
barrier()/memoryBarrierShared(). RejectsBarrier(...)construction inside
@Gpu. CPUBarrier(parties)is unchanged.Features
cthreads.sync.__sync_threads: compile-only stub; RuntimeError in plain PythonSyncThreadsPlugin: matches__sync_threads()andBarrier.arrive_and_wait()GpuFlow.expr_stmt: Call statements lower via CallPlugins (needed for barriers)Barrier(4)rejected