1; RUN: opt -mtriple amdgcn-unknown-amdhsa -passes='print<uniformity>' -disable-output %s 2>&1 | FileCheck %s 2 3; CHECK: DIVERGENT: %Guard.bb4 = phi i1 [ true, %bb1 ], [ false, %bb2 ] 4; CHECK: DIVERGENT: br i1 %Guard.bb4, label %bb4, label %bb5 5 6; Function Attrs: nounwind readnone speculatable 7declare i32 @llvm.amdgcn.workitem.id.x() #0 8 9define protected amdgpu_kernel void @test() { 10bb0: 11 %tid.x = call i32 @llvm.amdgcn.workitem.id.x() 12 %i5 = icmp eq i32 %tid.x, -1 13 br label %bb1 14 15bb1: ; preds = %bb2, %bb0 16 %lsr.iv = phi i32 [ 7, %bb0 ], [ %lsr.iv.next, %bb2 ] 17 br i1 %i5, label %bb2, label %bb3 18 19bb2: ; preds = %bb1 20 %lsr.iv.next = add nsw i32 %lsr.iv, -1 21 %i14 = icmp eq i32 %lsr.iv.next, 0 22 br i1 %i14, label %bb3, label %bb1 23 24bb3: ; preds = %bb2, %bb1 25 %Guard.bb4 = phi i1 [ true, %bb1 ], [ false, %bb2 ] 26 br i1 %Guard.bb4, label %bb4, label %bb5 27 28bb4: ; preds = %bb3 29 br label %bb5 30 31bb5: ; preds = %bb3, %bb4 32 ret void 33} 34 35attributes #0 = { nounwind readnone speculatable } 36