24 lines
604 B
LLVM
24 lines
604 B
LLVM
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; RUN: llc -mcpu=gfx906 -o - < %s | FileCheck --check-prefix=CHECK %s
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target triple = "amdgcn-amd-amdhsa"
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; Check the group segment has size 4, not zero.
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; CHECK: .amdhsa_kernel __device_start
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; CHECK: .amdhsa_group_segment_fixed_size 4
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; CHECK: .end_amdhsa_kernel
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@global_barrier_state = hidden addrspace(3) global i32 undef, align 4
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define i32 @rw() #0 {
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entry:
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%0 = atomicrmw add ptr addrspace(3) @global_barrier_state, i32 1 acq_rel, align 4
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ret i32 %0
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}
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define amdgpu_kernel void @__device_start() {
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entry:
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%0 = call i32 @rw()
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ret void
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}
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attributes #0 = { noinline }
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