xref: /aosp_15_r20/external/llvm/test/CodeGen/AArch64/arm64-regress-interphase-shift.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -march=arm64 -o - %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; This is mostly a "don't assert" test. The type of the RHS of a shift depended
4*9880d681SAndroid Build Coastguard Worker; on the phase of legalization, which led to the creation of an unexpected and
5*9880d681SAndroid Build Coastguard Worker; unselectable "rotr" node: (i32 (rotr i32, i64)).
6*9880d681SAndroid Build Coastguard Worker
7*9880d681SAndroid Build Coastguard Worker; FIXME: This test is xfailed because it relies on an optimization that has
8*9880d681SAndroid Build Coastguard Worker; been reverted (see PR17975).
9*9880d681SAndroid Build Coastguard Worker; XFAIL: *
10*9880d681SAndroid Build Coastguard Worker
11*9880d681SAndroid Build Coastguard Workerdefine void @foo(i64* nocapture %d) {
12*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: foo:
13*9880d681SAndroid Build Coastguard Worker; CHECK: rorv
14*9880d681SAndroid Build Coastguard Worker  %tmp = load i64, i64* undef, align 8
15*9880d681SAndroid Build Coastguard Worker  %sub397 = sub i64 0, %tmp
16*9880d681SAndroid Build Coastguard Worker  %and398 = and i64 %sub397, 4294967295
17*9880d681SAndroid Build Coastguard Worker  %shr404 = lshr i64 %and398, 0
18*9880d681SAndroid Build Coastguard Worker  %or405 = or i64 0, %shr404
19*9880d681SAndroid Build Coastguard Worker  %xor406 = xor i64 %or405, 0
20*9880d681SAndroid Build Coastguard Worker  %xor417 = xor i64 0, %xor406
21*9880d681SAndroid Build Coastguard Worker  %xor428 = xor i64 0, %xor417
22*9880d681SAndroid Build Coastguard Worker  %sub430 = sub i64 %xor417, 0
23*9880d681SAndroid Build Coastguard Worker  %and431 = and i64 %sub430, 4294967295
24*9880d681SAndroid Build Coastguard Worker  %and432 = and i64 %xor428, 31
25*9880d681SAndroid Build Coastguard Worker  %sub433 = sub i64 32, %and432
26*9880d681SAndroid Build Coastguard Worker  %shl434 = shl i64 %and431, %sub433
27*9880d681SAndroid Build Coastguard Worker  %shr437 = lshr i64 %and431, %and432
28*9880d681SAndroid Build Coastguard Worker  %or438 = or i64 %shl434, %shr437
29*9880d681SAndroid Build Coastguard Worker  %xor439 = xor i64 %or438, %xor428
30*9880d681SAndroid Build Coastguard Worker  %sub441 = sub i64 %xor439, 0
31*9880d681SAndroid Build Coastguard Worker  store i64 %sub441, i64* %d, align 8
32*9880d681SAndroid Build Coastguard Worker  ret void
33*9880d681SAndroid Build Coastguard Worker}
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