1 ; RUN: opt -S -o - -structurizecfg < %s | FileCheck %s
3 ; CHECK-LABEL: @invert_branch_on_arg_inf_loop(
5 ; CHECK: %arg.inv = xor i1 %arg, true
6 ; CHECK: phi i1 [ false, %Flow1 ], [ %arg.inv, %entry ]
7 define void @invert_branch_on_arg_inf_loop(i32 addrspace(1)* %out, i1 %arg) {
9 br i1 %arg, label %for.end, label %for.body
11 for.body: ; preds = %entry, %for.body
12 store i32 999, i32 addrspace(1)* %out, align 4
15 for.end: ; preds = %Flow
20 ; CHECK-LABEL: @invert_branch_on_arg_jump_into_loop(
22 ; CHECK: %arg.inv = xor i1 %arg, true
25 define void @invert_branch_on_arg_jump_into_loop(i32 addrspace(1)* %out, i32 %n, i1 %arg) {
30 %i = phi i32 [0, %entry], [%i.inc, %end.loop]
31 %ptr = getelementptr i32, i32 addrspace(1)* %out, i32 %i
32 store i32 %i, i32 addrspace(1)* %ptr, align 4
33 br i1 %arg, label %mid.loop, label %end.loop
36 store i32 333, i32 addrspace(1)* %out, align 4
40 %i.inc = add i32 %i, 1
41 %cmp = icmp ne i32 %i.inc, %n
42 br i1 %cmp, label %for.body, label %for.end