xref: /aosp_15_r20/external/llvm/test/Other/cleanup-lcssa.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -S -O3 < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Workerdefine i64 @test() {
4*9880d681SAndroid Build Coastguard Workerentry:
5*9880d681SAndroid Build Coastguard Worker  br label %loop
6*9880d681SAndroid Build Coastguard Worker
7*9880d681SAndroid Build Coastguard Workerloop:
8*9880d681SAndroid Build Coastguard Worker  %i = phi i64 [ 0, %entry ], [ %inc, %loop ]
9*9880d681SAndroid Build Coastguard Worker  %inc = add i64 %i, 1
10*9880d681SAndroid Build Coastguard Worker  %cond = tail call i1 @check()
11*9880d681SAndroid Build Coastguard Worker  br i1 %cond, label %loop, label %exit
12*9880d681SAndroid Build Coastguard Worker
13*9880d681SAndroid Build Coastguard Workerexit:
14*9880d681SAndroid Build Coastguard Worker  ; CHECK-NOT: lcssa
15*9880d681SAndroid Build Coastguard Worker  ret i64 %i
16*9880d681SAndroid Build Coastguard Worker}
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Workerdeclare i1 @check()
19