xref: /aosp_15_r20/external/llvm/test/CodeGen/Mips/msa/llvm-stress-s2501752154-simplified.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -march=mips < %s
2*9880d681SAndroid Build Coastguard Worker; RUN: llc -march=mips -mattr=+msa,+fp64 < %s
3*9880d681SAndroid Build Coastguard Worker; RUN: llc -march=mipsel < %s
4*9880d681SAndroid Build Coastguard Worker; RUN: llc -march=mipsel -mattr=+msa,+fp64 < %s
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Worker; This test originally failed for MSA with a "Cannot select ..." error.
7*9880d681SAndroid Build Coastguard Worker; This happened because the legalizer treated undef's in the <4 x float>
8*9880d681SAndroid Build Coastguard Worker; constant as equivalent to the defined elements when checking if it a constant
9*9880d681SAndroid Build Coastguard Worker; splat, but then proceeded to legalize the undef's to zero, leaving it as a
10*9880d681SAndroid Build Coastguard Worker; non-splat that cannot be selected. It should have eliminated the undef's by
11*9880d681SAndroid Build Coastguard Worker; rewriting the splat constant.
12*9880d681SAndroid Build Coastguard Worker
13*9880d681SAndroid Build Coastguard Worker; It should at least successfully build.
14*9880d681SAndroid Build Coastguard Worker
15*9880d681SAndroid Build Coastguard Workerdefine void @autogen_SD2501752154() {
16*9880d681SAndroid Build Coastguard WorkerBB:
17*9880d681SAndroid Build Coastguard Worker  %BC = bitcast <4 x i32> <i32 -1, i32 -1, i32 undef, i32 undef> to <4 x float>
18*9880d681SAndroid Build Coastguard Worker  br label %CF74
19*9880d681SAndroid Build Coastguard Worker
20*9880d681SAndroid Build Coastguard WorkerCF74:                                             ; preds = %CF74, %CF
21*9880d681SAndroid Build Coastguard Worker  %E54 = extractelement <1 x i1> undef, i32 0
22*9880d681SAndroid Build Coastguard Worker  br i1 %E54, label %CF74, label %CF79
23*9880d681SAndroid Build Coastguard Worker
24*9880d681SAndroid Build Coastguard WorkerCF79:                                             ; preds = %CF75
25*9880d681SAndroid Build Coastguard Worker  %I63 = insertelement <4 x float> %BC, float undef, i32 0
26*9880d681SAndroid Build Coastguard Worker  ret void
27*9880d681SAndroid Build Coastguard Worker}
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