xref: /aosp_15_r20/external/llvm/test/CodeGen/SystemZ/and-xor-01.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; Testing peephole for generating shorter code for (and (xor b, -1), a)
2*9880d681SAndroid Build Coastguard Worker;
3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Workerdefine i64 @f1(i64 %a, i64 %b) {
6*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1:
7*9880d681SAndroid Build Coastguard Worker; CHECK: ngr %r3, %r2
8*9880d681SAndroid Build Coastguard Worker; CHECK: xgr %r2, %r3
9*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14
10*9880d681SAndroid Build Coastguard Worker  %neg = xor i64 %b, -1
11*9880d681SAndroid Build Coastguard Worker  %and = and i64 %neg, %a
12*9880d681SAndroid Build Coastguard Worker  ret i64 %and
13*9880d681SAndroid Build Coastguard Worker}
14*9880d681SAndroid Build Coastguard Worker
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