xref: /aosp_15_r20/external/llvm/test/Transforms/IndVarSimplify/2012-10-19-congruent-constant.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -S -indvars < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; PR12627
4*9880d681SAndroid Build Coastguard Workerdefine void @test1(i32 %x) nounwind uwtable ssp {
5*9880d681SAndroid Build Coastguard Workerentry:
6*9880d681SAndroid Build Coastguard Worker  br label %for.body
7*9880d681SAndroid Build Coastguard Worker
8*9880d681SAndroid Build Coastguard Workerfor.body:                                         ; preds = %for.body, %entry
9*9880d681SAndroid Build Coastguard Worker  %phi1 = phi i1 [ false, %entry ], [ %cmpa, %for.body ]
10*9880d681SAndroid Build Coastguard Worker  %phi2 = phi i1 [ false, %entry ], [ %cmpb, %for.body ]
11*9880d681SAndroid Build Coastguard Worker  %i.07 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
12*9880d681SAndroid Build Coastguard Worker  tail call void @aux(i1 %phi1, i1 %phi2) nounwind
13*9880d681SAndroid Build Coastguard Worker  %cmpa = icmp sgt i32 %i.07, 200
14*9880d681SAndroid Build Coastguard Worker  %cmpb = icmp sgt i32 %i.07, 100
15*9880d681SAndroid Build Coastguard Worker  %inc = add nsw i32 %i.07, 1
16*9880d681SAndroid Build Coastguard Worker  %exitcond = icmp eq i32 %inc, 100
17*9880d681SAndroid Build Coastguard Worker  br i1 %exitcond, label %for.end, label %for.body
18*9880d681SAndroid Build Coastguard Worker
19*9880d681SAndroid Build Coastguard Workerfor.end:                                          ; preds = %for.body
20*9880d681SAndroid Build Coastguard Worker  ret void
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @test1(
23*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: phi i1
24*9880d681SAndroid Build Coastguard Worker; CHECK: call void @aux(i1 false, i1 false)
25*9880d681SAndroid Build Coastguard Worker}
26*9880d681SAndroid Build Coastguard Worker
27*9880d681SAndroid Build Coastguard Workerdeclare void @aux(i1, i1)
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