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| author | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2018-06-12 21:51:49 +0000 |
|---|---|---|
| committer | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2018-06-12 21:51:49 +0000 |
| commit | 82d284c1d28b2694acc461efec09e12193ce1b7d (patch) | |
| tree | b568e5f3c2b251c9e075f324dd6f7ecd1dcba3d8 /llvm/lib/Target/ARM | |
| parent | 4eed6cc43369e2f29a9f4ddfe843fb126657923b (diff) | |
| download | bcm5719-llvm-82d284c1d28b2694acc461efec09e12193ce1b7d.tar.gz bcm5719-llvm-82d284c1d28b2694acc461efec09e12193ce1b7d.zip | |
[DAGCombiner] Recognize more patterns for ABS
Differential Revision: https://reviews.llvm.org/D47831
llvm-svn: 334553
Diffstat (limited to 'llvm/lib/Target/ARM')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMInstrNEON.td | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/llvm/lib/Target/ARM/ARMInstrNEON.td b/llvm/lib/Target/ARM/ARMInstrNEON.td index 8010352d343..58fcf21dd19 100644 --- a/llvm/lib/Target/ARM/ARMInstrNEON.td +++ b/llvm/lib/Target/ARM/ARMInstrNEON.td @@ -5392,23 +5392,19 @@ defm VABDLs : N3VLIntExt_QHS<0,1,0b0111,0, IIC_VSUBi4Q, defm VABDLu : N3VLIntExt_QHS<1,1,0b0111,0, IIC_VSUBi4Q, "vabdl", "u", int_arm_neon_vabdu, zext, 1>; +def : Pat<(v8i16 (abs (sub (zext (v8i8 DPR:$opA)), (zext (v8i8 DPR:$opB))))), + (VABDLuv8i16 DPR:$opA, DPR:$opB)>; +def : Pat<(v4i32 (abs (sub (zext (v4i16 DPR:$opA)), (zext (v4i16 DPR:$opB))))), + (VABDLuv4i32 DPR:$opA, DPR:$opB)>; + +// ISD::ABS is not legal for v2i64, so VABDL needs to be matched from the +// shift/xor pattern for ABS. + def abd_shr : PatFrag<(ops node:$in1, node:$in2, node:$shift), (NEONvshrs (sub (zext node:$in1), (zext node:$in2)), (i32 $shift))>; -def : Pat<(xor (v4i32 (bitconvert (v8i16 (abd_shr (v8i8 DPR:$opA), (v8i8 DPR:$opB), 15)))), - (v4i32 (bitconvert (v8i16 (add (sub (zext (v8i8 DPR:$opA)), - (zext (v8i8 DPR:$opB))), - (v8i16 (abd_shr (v8i8 DPR:$opA), (v8i8 DPR:$opB), 15))))))), - (VABDLuv8i16 DPR:$opA, DPR:$opB)>; - -def : Pat<(xor (v4i32 (abd_shr (v4i16 DPR:$opA), (v4i16 DPR:$opB), 31)), - (v4i32 (add (sub (zext (v4i16 DPR:$opA)), - (zext (v4i16 DPR:$opB))), - (abd_shr (v4i16 DPR:$opA), (v4i16 DPR:$opB), 31)))), - (VABDLuv4i32 DPR:$opA, DPR:$opB)>; - def : Pat<(xor (v4i32 (bitconvert (v2i64 (abd_shr (v2i32 DPR:$opA), (v2i32 DPR:$opB), 63)))), (v4i32 (bitconvert (v2i64 (add (sub (zext (v2i32 DPR:$opA)), (zext (v2i32 DPR:$opB))), |
