xref: /aosp_15_r20/external/llvm/test/Verifier/PhiGrouping.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: not llvm-as < %s 2>&1 | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; CHECK: PHI nodes not grouped at top
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine i32 @test(i32 %i, i32 %j, i1 %c) {
5*9880d681SAndroid Build Coastguard Worker	br i1 %c, label %A, label %B
6*9880d681SAndroid Build Coastguard WorkerA:
7*9880d681SAndroid Build Coastguard Worker	br label %C
8*9880d681SAndroid Build Coastguard WorkerB:
9*9880d681SAndroid Build Coastguard Worker	br label %C
10*9880d681SAndroid Build Coastguard Worker
11*9880d681SAndroid Build Coastguard WorkerC:
12*9880d681SAndroid Build Coastguard Worker	%a = phi i32 [%i, %A], [%j, %B]
13*9880d681SAndroid Build Coastguard Worker	%x = add i32 %a, 0                 ; Error, PHI's should be grouped!
14*9880d681SAndroid Build Coastguard Worker	%b = phi i32 [%i, %A], [%j, %B]
15*9880d681SAndroid Build Coastguard Worker	ret i32 %x
16*9880d681SAndroid Build Coastguard Worker}
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