1 ; RUN: opt -S -o - -structurizecfg < %s | FileCheck %s 2 3 ; CHECK-LABEL: @invert_branch_on_arg_inf_loop( 4 ; CHECK: entry: 5 ; CHECK: %arg.inv = xor i1 %arg, true 6 define void @invert_branch_on_arg_inf_loop(i32 addrspace(1)* %out, i1 %arg) { 7 entry: 8 br i1 %arg, label %for.end, label %sesestart 9 sesestart: 10 br label %for.body 11 12 for.body: ; preds = %entry, %for.body 13 store i32 999, i32 addrspace(1)* %out, align 4 14 br i1 %arg, label %for.body, label %seseend 15 seseend: 16 ret void 17 18 for.end: ; preds = %Flow 19 ret void 20 } 21 22 23 ; CHECK-LABEL: @invert_branch_on_arg_jump_into_loop( 24 ; CHECK: entry: 25 ; CHECK: %arg.inv = xor i1 %arg, true 26 ; CHECK: Flow: 27 ; CHECK: Flow1: 28 define void @invert_branch_on_arg_jump_into_loop(i32 addrspace(1)* %out, i32 %n, i1 %arg) { 29 entry: 30 br label %for.body 31 32 for.body: 33 %i = phi i32 [0, %entry], [%i.inc, %end.loop] 34 %ptr = getelementptr i32, i32 addrspace(1)* %out, i32 %i 35 store i32 %i, i32 addrspace(1)* %ptr, align 4 36 br i1 %arg, label %mid.loop, label %end.loop 37 38 mid.loop: 39 store i32 333, i32 addrspace(1)* %out, align 4 40 br label %for.end 41 42 end.loop: 43 %i.inc = add i32 %i, 1 44 %cmp = icmp ne i32 %i.inc, %n 45 br i1 %cmp, label %for.body, label %for.end 46 47 for.end: 48 ret void 49 } 50 51
