1 ; RUN: opt -mtriple=amdgcn-- -analyze -divergence %s | FileCheck %s 2 3 ; CHECK-LABEL: 'test1': 4 ; CHECK-NEXT: DIVERGENT: i32 %bound 5 ; CHECK-NEXT: DIVERGENT: %break = icmp sge i32 %counter, %bound 6 ; CHECK-NEXT: DIVERGENT: br i1 %break, label %footer, label %body 7 ; CHECK-NEXT: DIVERGENT: br i1 %break, label %end, label %header 8 ; Note: %counter is not divergent! 9 define amdgpu_ps void @test1(i32 %bound) { 10 entry: 11 br label %header 12 13 header: 14 %counter = phi i32 [ 0, %entry ], [ %counter.footer, %footer ] 15 %break = icmp sge i32 %counter, %bound 16 br i1 %break, label %footer, label %body 17 18 body: 19 %counter.next = add i32 %counter, 1 20 br label %footer 21 22 footer: 23 %counter.footer = phi i32 [ %counter.next, %body ], [ undef, %header ] 24 br i1 %break, label %end, label %header 25 26 end: 27 ret void 28 } 29
