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author | Evan Cheng <evan.cheng@apple.com> | 2012-09-18 01:42:45 +0000 |
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committer | Evan Cheng <evan.cheng@apple.com> | 2012-09-18 01:42:45 +0000 |
commit | d10eab0a95dcfff6390cc73b50ca07fd8b98b0bc (patch) | |
tree | 43188b1a134f52ef023e3686f292662f656fa0b7 /lib/Target/ARM/ARMInstrNEON.td | |
parent | b198f5c8979d46d75a08c1710a160f8e102b9ba8 (diff) | |
download | llvm-d10eab0a95dcfff6390cc73b50ca07fd8b98b0bc.tar.gz llvm-d10eab0a95dcfff6390cc73b50ca07fd8b98b0bc.tar.bz2 llvm-d10eab0a95dcfff6390cc73b50ca07fd8b98b0bc.tar.xz |
Use vld1 / vst2 for unaligned v2f64 load / store. e.g. Use vld1.16 for 2-byte
aligned address. Based on patch by David Peixotto.
Also use vld1.64 / vst1.64 with 128-bit alignment to take advantage of alignment
hints. rdar://12090772, rdar://12238782
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164089 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMInstrNEON.td')
-rw-r--r-- | lib/Target/ARM/ARMInstrNEON.td | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMInstrNEON.td b/lib/Target/ARM/ARMInstrNEON.td index 8158a11f83..97f74d8c71 100644 --- a/lib/Target/ARM/ARMInstrNEON.td +++ b/lib/Target/ARM/ARMInstrNEON.td @@ -398,6 +398,20 @@ def VecListFourQWordIndexed : Operand<i32> { let MIOperandInfo = (ops DPR:$Vd, i32imm:$idx); } +def dword_alignedload : PatFrag<(ops node:$ptr), (load node:$ptr), [{ + return cast<LoadSDNode>(N)->getAlignment() >= 8; +}]>; +def dword_alignedstore : PatFrag<(ops node:$val, node:$ptr), + (store node:$val, node:$ptr), [{ + return cast<StoreSDNode>(N)->getAlignment() >= 8; +}]>; +def word_alignedload : PatFrag<(ops node:$ptr), (load node:$ptr), [{ + return cast<LoadSDNode>(N)->getAlignment() == 4; +}]>; +def word_alignedstore : PatFrag<(ops node:$val, node:$ptr), + (store node:$val, node:$ptr), [{ + return cast<StoreSDNode>(N)->getAlignment() == 4; +}]>; def hword_alignedload : PatFrag<(ops node:$ptr), (load node:$ptr), [{ return cast<LoadSDNode>(N)->getAlignment() == 2; }]>; @@ -2273,6 +2287,25 @@ def : Pat<(f64 (non_word_alignedload addrmode6:$addr)), def : Pat<(non_word_alignedstore (f64 DPR:$value), addrmode6:$addr), (VST1d64 addrmode6:$addr, DPR:$value)>, Requires<[IsBE]>; +// Use vld1/vst1 for Q and QQ. Also use them for unaligned v2f64 +// load / store if it's legal. +def : Pat<(v2f64 (dword_alignedload addrmode6:$addr)), + (VLD1q64 addrmode6:$addr)>; +def : Pat<(dword_alignedstore (v2f64 QPR:$value), addrmode6:$addr), + (VST1q64 addrmode6:$addr, QPR:$value)>; +def : Pat<(v2f64 (word_alignedload addrmode6:$addr)), + (VLD1q32 addrmode6:$addr)>; +def : Pat<(word_alignedstore (v2f64 QPR:$value), addrmode6:$addr), + (VST1q32 addrmode6:$addr, QPR:$value)>; +def : Pat<(v2f64 (hword_alignedload addrmode6:$addr)), + (VLD1q16 addrmode6:$addr)>, Requires<[IsLE]>; +def : Pat<(hword_alignedstore (v2f64 QPR:$value), addrmode6:$addr), + (VST1q16 addrmode6:$addr, QPR:$value)>, Requires<[IsLE]>; +def : Pat<(v2f64 (byte_alignedload addrmode6:$addr)), + (VLD1q8 addrmode6:$addr)>, Requires<[IsLE]>; +def : Pat<(byte_alignedstore (v2f64 QPR:$value), addrmode6:$addr), + (VST1q8 addrmode6:$addr, QPR:$value)>, Requires<[IsLE]>; + //===----------------------------------------------------------------------===// // NEON pattern fragments //===----------------------------------------------------------------------===// |