diff options
Diffstat (limited to 'libclc/amdgcn/lib/synchronization/barrier_impl.ll')
| -rw-r--r-- | libclc/amdgcn/lib/synchronization/barrier_impl.ll | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libclc/amdgcn/lib/synchronization/barrier_impl.ll b/libclc/amdgcn/lib/synchronization/barrier_impl.ll new file mode 100644 index 00000000000..1809eddf695 --- /dev/null +++ b/libclc/amdgcn/lib/synchronization/barrier_impl.ll @@ -0,0 +1,32 @@ +declare i32 @__clc_clk_local_mem_fence() #1 +declare i32 @__clc_clk_global_mem_fence() #1 +declare void @llvm.amdgcn.s.barrier() #0 + +define void @barrier(i32 %flags) #2 { +barrier_local_test: + %CLK_LOCAL_MEM_FENCE = call i32 @__clc_clk_local_mem_fence() + %0 = and i32 %flags, %CLK_LOCAL_MEM_FENCE + %1 = icmp ne i32 %0, 0 + br i1 %1, label %barrier_local, label %barrier_global_test + +barrier_local: + call void @llvm.amdgcn.s.barrier() + br label %barrier_global_test + +barrier_global_test: + %CLK_GLOBAL_MEM_FENCE = call i32 @__clc_clk_global_mem_fence() + %2 = and i32 %flags, %CLK_GLOBAL_MEM_FENCE + %3 = icmp ne i32 %2, 0 + br i1 %3, label %barrier_global, label %done + +barrier_global: + call void @llvm.amdgcn.s.barrier() + br label %done + +done: + ret void +} + +attributes #0 = { nounwind convergent } +attributes #1 = { nounwind alwaysinline } +attributes #2 = { nounwind convergent alwaysinline } |
