xref: /aosp_15_r20/external/llvm/test/Transforms/LoopStrengthReduce/pr2537.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -loop-reduce -disable-output
2*9880d681SAndroid Build Coastguard Worker; PR 2537
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine void @a() {
5*9880d681SAndroid Build Coastguard Workerentry:
6*9880d681SAndroid Build Coastguard Worker        br label %dobody
7*9880d681SAndroid Build Coastguard Worker
8*9880d681SAndroid Build Coastguard Workerdobody:         ; preds = %dobody, %entry
9*9880d681SAndroid Build Coastguard Worker        %y.0 = phi i128 [ 0, %entry ], [ %add, %dobody ]
10*9880d681SAndroid Build Coastguard Worker        %x.0 = phi i128 [ 0, %entry ], [ %add2, %dobody ]
11*9880d681SAndroid Build Coastguard Worker        %add = add i128 %y.0, shl (i128 1, i128 64)
12*9880d681SAndroid Build Coastguard Worker        %add2 = add i128 %x.0, shl (i128 1, i128 48)
13*9880d681SAndroid Build Coastguard Worker        call void @b( i128 %add )
14*9880d681SAndroid Build Coastguard Worker        %cmp = icmp ult i128 %add2, shl (i128 1, i128 64)
15*9880d681SAndroid Build Coastguard Worker        br i1 %cmp, label %dobody, label %afterdo
16*9880d681SAndroid Build Coastguard Worker
17*9880d681SAndroid Build Coastguard Workerafterdo:                ; preds = %dobody
18*9880d681SAndroid Build Coastguard Worker        ret void
19*9880d681SAndroid Build Coastguard Worker}
20*9880d681SAndroid Build Coastguard Worker
21*9880d681SAndroid Build Coastguard Workerdeclare void @b(i128 %add)
22