1 ; RUN: opt -S -structurizecfg %s -o - | FileCheck %s 2 ; 3 ; void loop(int *out, int cond_a, int cond_b) { 4 ; 5 ; unsigned i; 6 ; for (i = 0; i < cond_a; i++) { 7 ; out[i] = i; 8 ; if (i > cond_b) { 9 ; break; 10 ; } 11 ; out[i + cond_a] = i; 12 ; } 13 ; } 14 15 define void @loop(i32 addrspace(1)* %out, i32 %cond_a, i32 %cond_b) nounwind uwtable { 16 entry: 17 br label %for.cond 18 19 for.cond: ; preds = %for.inc, %entry 20 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] 21 %cmp = icmp ult i32 %i.0, %cond_a 22 br i1 %cmp, label %for.body, label %for.end 23 24 ; CHECK: for.body: 25 for.body: ; preds = %for.cond 26 %arrayidx = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %i.0 27 store i32 %i.0, i32 addrspace(1)* %arrayidx, align 4 28 %cmp1 = icmp ugt i32 %i.0, %cond_b 29 ; CHECK: br i1 %{{[0-9a-zA-Z_]+}}, label %for.inc, label %[[FLOW1:[0-9a-zA-Z_]+]] 30 br i1 %cmp1, label %for.end, label %for.inc 31 32 ; CHECK: [[FLOW:[0-9a-zA-Z]+]]: 33 ; CHECK: br i1 %{{[0-9a-zA-Z_]+}}, label %for.end, label %for.cond 34 35 ; CHECK: for.inc: 36 ; CHECK: br label %[[FLOW1]] 37 38 for.inc: ; preds = %for.body 39 %0 = add i32 %cond_a, %i.0 40 %arrayidx3 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 %0 41 store i32 %i.0, i32 addrspace(1)* %arrayidx3, align 4 42 %inc = add i32 %i.0, 1 43 br label %for.cond 44 45 ; CHECK: [[FLOW1]] 46 ; CHECK: br label %[[FLOW]] 47 48 for.end: ; preds = %for.cond, %for.body 49 ret void 50 } 51
