| ; RUN: opt %s -mtriple amdgcn-- -analyze -divergence | FileCheck %s |
| |
| ; CHECK: DIVERGENT: %tmp = cmpxchg volatile |
| define amdgpu_kernel void @unreachable_loop(i32 %tidx) #0 { |
| entry: |
| unreachable |
| |
| unreachable_loop: ; preds = %do.body.i, %if.then11 |
| %tmp = cmpxchg volatile i32 addrspace(1)* null, i32 0, i32 0 seq_cst seq_cst |
| %cmp.i = extractvalue { i32, i1 } %tmp, 1 |
| br i1 %cmp.i, label %unreachable_loop, label %end |
| |
| end: ; preds = %do.body.i51, %atomicAdd_g_f.exit |
| unreachable |
| } |
| |
| attributes #0 = { norecurse nounwind } |