xref: /aosp_15_r20/external/llvm/test/Transforms/SimplifyCFG/PR25267.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -simplifycfg -S | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Workerdefine void @f() {
4*9880d681SAndroid Build Coastguard Workerentry:
5*9880d681SAndroid Build Coastguard Worker  br label %for.cond
6*9880d681SAndroid Build Coastguard Worker
7*9880d681SAndroid Build Coastguard Workerfor.cond:
8*9880d681SAndroid Build Coastguard Worker  %phi = phi i1 [ false, %entry ], [ true, %for.body ]
9*9880d681SAndroid Build Coastguard Worker  %select = select i1 %phi, i32 1, i32 2
10*9880d681SAndroid Build Coastguard Worker  br label %for.body
11*9880d681SAndroid Build Coastguard Worker
12*9880d681SAndroid Build Coastguard Workerfor.body:
13*9880d681SAndroid Build Coastguard Worker  switch i32 %select, label %for.cond [
14*9880d681SAndroid Build Coastguard Worker    i32 1, label %return
15*9880d681SAndroid Build Coastguard Worker    i32 2, label %for.body
16*9880d681SAndroid Build Coastguard Worker  ]
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Workerreturn:
19*9880d681SAndroid Build Coastguard Worker  ret void
20*9880d681SAndroid Build Coastguard Worker}
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define void @f(
23*9880d681SAndroid Build Coastguard Worker; CHECK: br label %[[LABEL:.*]]
24*9880d681SAndroid Build Coastguard Worker; CHECK: br label %[[LABEL]]
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