29 lines
726 B
LLVM
29 lines
726 B
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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; GCN-LABEL: {{^}}test_wave_barrier:
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; GCN-DAG: ; wave barrier
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; GCN-NOT: s_barrier
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define amdgpu_kernel void @test_wave_barrier() #0 {
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entry:
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call void @llvm.amdgcn.wave.barrier() #1
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ret void
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}
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; Check for verifier error from interpreting wave_barrier as a control
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; flow barrier.
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; GCN-LABEL: {{^}}test_wave_barrier_is_not_isBarrier:
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; GCN-DAG: ; wave barrier
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; GCN-NOT: s_barrier
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define amdgpu_kernel void @test_wave_barrier_is_not_isBarrier() #0 {
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entry:
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call void @llvm.amdgcn.wave.barrier() #1
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unreachable
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}
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declare void @llvm.amdgcn.wave.barrier() #1
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attributes #0 = { nounwind }
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attributes #1 = { convergent nounwind }
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