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[ARM][MVE] Tail predicate VMAX,VMAXA,VMIN,VMINA

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Add the MVE min and max instructions to our tail predication
whitelist.

Differential Revision: https://reviews.llvm.org/D72502
This commit is contained in:
Sam Parker 2020-01-10 13:08:30 +00:00
parent 19b2fc8708
commit 5ff915b04d
2 changed files with 20 additions and 0 deletions
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2
lib/Target/ARM/ARMInstrMVE.td
View File

@ -1138,6 +1138,7 @@ class MVE_VMINMAX<string iname, string suffix, bit U, bits<2> size,
let Inst{8} = 0b0;
let Inst{6} = 0b1;
let Inst{4} = bit_4;
let validForTailPredication = 1;
}
multiclass MVE_VMINMAX_m<string iname, bit bit_4, MVEVectorVTInfo VTI,
@ -2298,6 +2299,7 @@ class MVE_VMINMAXA<string iname, string suffix, bits<2> size,
let Inst{4} = 0b0;
let Inst{3-1} = Qm{2-0};
let Inst{0} = 0b1;
let validForTailPredication = 1;
}
def MVE_VMAXAs8 : MVE_VMINMAXA<"vmaxa", "s8", 0b00, 0b0>;

18
unittests/Target/ARM/MachineInstrTest.cpp
View File

@ -149,6 +149,24 @@ TEST(MachineInstrValidTailPredication, IsCorrect) {
case MVE_VFMA_qr_Sf32:
case MVE_VFMA_qr_f16:
case MVE_VFMA_qr_f32:
case MVE_VMAXAs16:
case MVE_VMAXAs32:
case MVE_VMAXAs8:
case MVE_VMAXs16:
case MVE_VMAXs32:
case MVE_VMAXs8:
case MVE_VMAXu16:
case MVE_VMAXu32:
case MVE_VMAXu8:
case MVE_VMINAs16:
case MVE_VMINAs32:
case MVE_VMINAs8:
case MVE_VMINs16:
case MVE_VMINs32:
case MVE_VMINs8:
case MVE_VMINu16:
case MVE_VMINu32:
case MVE_VMINu8:
case MVE_VMLAS_qr_s16:
case MVE_VMLAS_qr_s32:
case MVE_VMLAS_qr_s8: