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-rw-r--r--contrib/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp588
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diff --git a/contrib/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp b/contrib/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp
deleted file mode 100644
index 48fd3e0b7ab9..000000000000
--- a/contrib/llvm/lib/Target/X86/Utils/X86ShuffleDecode.cpp
+++ /dev/null
@@ -1,588 +0,0 @@
-//===-- X86ShuffleDecode.cpp - X86 shuffle decode logic -------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-//
-// Define several functions to decode x86 specific shuffle semantics into a
-// generic vector mask.
-//
-//===----------------------------------------------------------------------===//
-
-#include "X86ShuffleDecode.h"
-#include "llvm/ADT/ArrayRef.h"
-
-//===----------------------------------------------------------------------===//
-// Vector Mask Decoding
-//===----------------------------------------------------------------------===//
-
-namespace llvm {
-
-void DecodeINSERTPSMask(unsigned Imm, SmallVectorImpl<int> &ShuffleMask) {
- // Defaults the copying the dest value.
- ShuffleMask.push_back(0);
- ShuffleMask.push_back(1);
- ShuffleMask.push_back(2);
- ShuffleMask.push_back(3);
-
- // Decode the immediate.
- unsigned ZMask = Imm & 15;
- unsigned CountD = (Imm >> 4) & 3;
- unsigned CountS = (Imm >> 6) & 3;
-
- // CountS selects which input element to use.
- unsigned InVal = 4 + CountS;
- // CountD specifies which element of destination to update.
- ShuffleMask[CountD] = InVal;
- // ZMask zaps values, potentially overriding the CountD elt.
- if (ZMask & 1) ShuffleMask[0] = SM_SentinelZero;
- if (ZMask & 2) ShuffleMask[1] = SM_SentinelZero;
- if (ZMask & 4) ShuffleMask[2] = SM_SentinelZero;
- if (ZMask & 8) ShuffleMask[3] = SM_SentinelZero;
-}
-
-void DecodeInsertElementMask(unsigned NumElts, unsigned Idx, unsigned Len,
- SmallVectorImpl<int> &ShuffleMask) {
- assert((Idx + Len) <= NumElts && "Insertion out of range");
-
- for (unsigned i = 0; i != NumElts; ++i)
- ShuffleMask.push_back(i);
- for (unsigned i = 0; i != Len; ++i)
- ShuffleMask[Idx + i] = NumElts + i;
-}
-
-// <3,1> or <6,7,2,3>
-void DecodeMOVHLPSMask(unsigned NElts, SmallVectorImpl<int> &ShuffleMask) {
- for (unsigned i = NElts / 2; i != NElts; ++i)
- ShuffleMask.push_back(NElts + i);
-
- for (unsigned i = NElts / 2; i != NElts; ++i)
- ShuffleMask.push_back(i);
-}
-
-// <0,2> or <0,1,4,5>
-void DecodeMOVLHPSMask(unsigned NElts, SmallVectorImpl<int> &ShuffleMask) {
- for (unsigned i = 0; i != NElts / 2; ++i)
- ShuffleMask.push_back(i);
-
- for (unsigned i = 0; i != NElts / 2; ++i)
- ShuffleMask.push_back(NElts + i);
-}
-
-void DecodeMOVSLDUPMask(unsigned NumElts, SmallVectorImpl<int> &ShuffleMask) {
- for (int i = 0, e = NumElts / 2; i < e; ++i) {
- ShuffleMask.push_back(2 * i);
- ShuffleMask.push_back(2 * i);
- }
-}
-
-void DecodeMOVSHDUPMask(unsigned NumElts, SmallVectorImpl<int> &ShuffleMask) {
- for (int i = 0, e = NumElts / 2; i < e; ++i) {
- ShuffleMask.push_back(2 * i + 1);
- ShuffleMask.push_back(2 * i + 1);
- }
-}
-
-void DecodeMOVDDUPMask(unsigned NumElts, SmallVectorImpl<int> &ShuffleMask) {
- const unsigned NumLaneElts = 2;
-
- for (unsigned l = 0; l < NumElts; l += NumLaneElts)
- for (unsigned i = 0; i < NumLaneElts; ++i)
- ShuffleMask.push_back(l);
-}
-
-void DecodePSLLDQMask(unsigned NumElts, unsigned Imm,
- SmallVectorImpl<int> &ShuffleMask) {
- const unsigned NumLaneElts = 16;
-
- for (unsigned l = 0; l < NumElts; l += NumLaneElts)
- for (unsigned i = 0; i < NumLaneElts; ++i) {
- int M = SM_SentinelZero;
- if (i >= Imm) M = i - Imm + l;
- ShuffleMask.push_back(M);
- }
-}
-
-void DecodePSRLDQMask(unsigned NumElts, unsigned Imm,
- SmallVectorImpl<int> &ShuffleMask) {
- const unsigned NumLaneElts = 16;
-
- for (unsigned l = 0; l < NumElts; l += NumLaneElts)
- for (unsigned i = 0; i < NumLaneElts; ++i) {
- unsigned Base = i + Imm;
- int M = Base + l;
- if (Base >= NumLaneElts) M = SM_SentinelZero;
- ShuffleMask.push_back(M);
- }
-}
-
-void DecodePALIGNRMask(unsigned NumElts, unsigned Imm,
- SmallVectorImpl<int> &ShuffleMask) {
- const unsigned NumLaneElts = 16;
-
- for (unsigned l = 0; l != NumElts; l += NumLaneElts) {
- for (unsigned i = 0; i != NumLaneElts; ++i) {
- unsigned Base = i + Imm;
- // if i+imm is out of this lane then we actually need the other source
- if (Base >= NumLaneElts) Base += NumElts - NumLaneElts;
- ShuffleMask.push_back(Base + l);
- }
- }
-}
-
-void DecodeVALIGNMask(unsigned NumElts, unsigned Imm,
- SmallVectorImpl<int> &ShuffleMask) {
- // Not all bits of the immediate are used so mask it.
- assert(isPowerOf2_32(NumElts) && "NumElts should be power of 2");
- Imm = Imm & (NumElts - 1);
- for (unsigned i = 0; i != NumElts; ++i)
- ShuffleMask.push_back(i + Imm);
-}
-
-/// DecodePSHUFMask - This decodes the shuffle masks for pshufw, pshufd, and vpermilp*.
-/// VT indicates the type of the vector allowing it to handle different
-/// datatypes and vector widths.
-void DecodePSHUFMask(unsigned NumElts, unsigned ScalarBits, unsigned Imm,
- SmallVectorImpl<int> &ShuffleMask) {
- unsigned Size = NumElts * ScalarBits;
- unsigned NumLanes = Size / 128;
- if (NumLanes == 0) NumLanes = 1; // Handle MMX
- unsigned NumLaneElts = NumElts / NumLanes;
-
- uint32_t SplatImm = (Imm & 0xff) * 0x01010101;
- for (unsigned l = 0; l != NumElts; l += NumLaneElts) {
- for (unsigned i = 0; i != NumLaneElts; ++i) {
- ShuffleMask.push_back(SplatImm % NumLaneElts + l);
- SplatImm /= NumLaneElts;
- }
- }
-}
-
-void DecodePSHUFHWMask(unsigned NumElts, unsigned Imm,
- SmallVectorImpl<int> &ShuffleMask) {
- for (unsigned l = 0; l != NumElts; l += 8) {
- unsigned NewImm = Imm;
- for (unsigned i = 0, e = 4; i != e; ++i) {
- ShuffleMask.push_back(l + i);
- }
- for (unsigned i = 4, e = 8; i != e; ++i) {
- ShuffleMask.push_back(l + 4 + (NewImm & 3));
- NewImm >>= 2;
- }
- }
-}
-
-void DecodePSHUFLWMask(unsigned NumElts, unsigned Imm,
- SmallVectorImpl<int> &ShuffleMask) {
- for (unsigned l = 0; l != NumElts; l += 8) {
- unsigned NewImm = Imm;
- for (unsigned i = 0, e = 4; i != e; ++i) {
- ShuffleMask.push_back(l + (NewImm & 3));
- NewImm >>= 2;
- }
- for (unsigned i = 4, e = 8; i != e; ++i) {
- ShuffleMask.push_back(l + i);
- }
- }
-}
-
-void DecodePSWAPMask(unsigned NumElts, SmallVectorImpl<int> &ShuffleMask) {
- unsigned NumHalfElts = NumElts / 2;
-
- for (unsigned l = 0; l != NumHalfElts; ++l)
- ShuffleMask.push_back(l + NumHalfElts);
- for (unsigned h = 0; h != NumHalfElts; ++h)
- ShuffleMask.push_back(h);
-}
-
-/// DecodeSHUFPMask - This decodes the shuffle masks for shufp*. VT indicates
-/// the type of the vector allowing it to handle different datatypes and vector
-/// widths.
-void DecodeSHUFPMask(unsigned NumElts, unsigned ScalarBits,
- unsigned Imm, SmallVectorImpl<int> &ShuffleMask) {
- unsigned NumLaneElts = 128 / ScalarBits;
-
- unsigned NewImm = Imm;
- for (unsigned l = 0; l != NumElts; l += NumLaneElts) {
- // each half of a lane comes from different source
- for (unsigned s = 0; s != NumElts * 2; s += NumElts) {
- for (unsigned i = 0; i != NumLaneElts / 2; ++i) {
- ShuffleMask.push_back(NewImm % NumLaneElts + s + l);
- NewImm /= NumLaneElts;
- }
- }
- if (NumLaneElts == 4) NewImm = Imm; // reload imm
- }
-}
-
-/// DecodeUNPCKHMask - This decodes the shuffle masks for unpckhps/unpckhpd
-/// and punpckh*. VT indicates the type of the vector allowing it to handle
-/// different datatypes and vector widths.
-void DecodeUNPCKHMask(unsigned NumElts, unsigned ScalarBits,
- SmallVectorImpl<int> &ShuffleMask) {
- // Handle 128 and 256-bit vector lengths. AVX defines UNPCK* to operate
- // independently on 128-bit lanes.
- unsigned NumLanes = (NumElts * ScalarBits) / 128;
- if (NumLanes == 0) NumLanes = 1; // Handle MMX
- unsigned NumLaneElts = NumElts / NumLanes;
-
- for (unsigned l = 0; l != NumElts; l += NumLaneElts) {
- for (unsigned i = l + NumLaneElts / 2, e = l + NumLaneElts; i != e; ++i) {
- ShuffleMask.push_back(i); // Reads from dest/src1
- ShuffleMask.push_back(i + NumElts); // Reads from src/src2
- }
- }
-}
-
-/// DecodeUNPCKLMask - This decodes the shuffle masks for unpcklps/unpcklpd
-/// and punpckl*. VT indicates the type of the vector allowing it to handle
-/// different datatypes and vector widths.
-void DecodeUNPCKLMask(unsigned NumElts, unsigned ScalarBits,
- SmallVectorImpl<int> &ShuffleMask) {
- // Handle 128 and 256-bit vector lengths. AVX defines UNPCK* to operate
- // independently on 128-bit lanes.
- unsigned NumLanes = (NumElts * ScalarBits) / 128;
- if (NumLanes == 0 ) NumLanes = 1; // Handle MMX
- unsigned NumLaneElts = NumElts / NumLanes;
-
- for (unsigned l = 0; l != NumElts; l += NumLaneElts) {
- for (unsigned i = l, e = l + NumLaneElts / 2; i != e; ++i) {
- ShuffleMask.push_back(i); // Reads from dest/src1
- ShuffleMask.push_back(i + NumElts); // Reads from src/src2
- }
- }
-}
-
-/// Decodes a broadcast of the first element of a vector.
-void DecodeVectorBroadcast(unsigned NumElts,
- SmallVectorImpl<int> &ShuffleMask) {
- ShuffleMask.append(NumElts, 0);
-}
-
-/// Decodes a broadcast of a subvector to a larger vector type.
-void DecodeSubVectorBroadcast(unsigned DstNumElts, unsigned SrcNumElts,
- SmallVectorImpl<int> &ShuffleMask) {
- unsigned Scale = DstNumElts / SrcNumElts;
-
- for (unsigned i = 0; i != Scale; ++i)
- for (unsigned j = 0; j != SrcNumElts; ++j)
- ShuffleMask.push_back(j);
-}
-
-/// Decode a shuffle packed values at 128-bit granularity
-/// (SHUFF32x4/SHUFF64x2/SHUFI32x4/SHUFI64x2)
-/// immediate mask into a shuffle mask.
-void decodeVSHUF64x2FamilyMask(unsigned NumElts, unsigned ScalarSize,
- unsigned Imm,
- SmallVectorImpl<int> &ShuffleMask) {
- unsigned NumElementsInLane = 128 / ScalarSize;
- unsigned NumLanes = NumElts / NumElementsInLane;
-
- for (unsigned l = 0; l != NumElts; l += NumElementsInLane) {
- unsigned Index = (Imm % NumLanes) * NumElementsInLane;
- Imm /= NumLanes; // Discard the bits we just used.
- // We actually need the other source.
- if (l >= (NumElts / 2))
- Index += NumElts;
- for (unsigned i = 0; i != NumElementsInLane; ++i)
- ShuffleMask.push_back(Index + i);
- }
-}
-
-void DecodeVPERM2X128Mask(unsigned NumElts, unsigned Imm,
- SmallVectorImpl<int> &ShuffleMask) {
- unsigned HalfSize = NumElts / 2;
-
- for (unsigned l = 0; l != 2; ++l) {
- unsigned HalfMask = Imm >> (l * 4);
- unsigned HalfBegin = (HalfMask & 0x3) * HalfSize;
- for (unsigned i = HalfBegin, e = HalfBegin + HalfSize; i != e; ++i)
- ShuffleMask.push_back((HalfMask & 8) ? SM_SentinelZero : (int)i);
- }
-}
-
-void DecodePSHUFBMask(ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
- SmallVectorImpl<int> &ShuffleMask) {
- for (int i = 0, e = RawMask.size(); i < e; ++i) {
- uint64_t M = RawMask[i];
- if (UndefElts[i]) {
- ShuffleMask.push_back(SM_SentinelUndef);
- continue;
- }
- // For 256/512-bit vectors the base of the shuffle is the 128-bit
- // subvector we're inside.
- int Base = (i / 16) * 16;
- // If the high bit (7) of the byte is set, the element is zeroed.
- if (M & (1 << 7))
- ShuffleMask.push_back(SM_SentinelZero);
- else {
- // Only the least significant 4 bits of the byte are used.
- int Index = Base + (M & 0xf);
- ShuffleMask.push_back(Index);
- }
- }
-}
-
-void DecodeBLENDMask(unsigned NumElts, unsigned Imm,
- SmallVectorImpl<int> &ShuffleMask) {
- for (unsigned i = 0; i < NumElts; ++i) {
- // If there are more than 8 elements in the vector, then any immediate blend
- // mask wraps around.
- unsigned Bit = i % 8;
- ShuffleMask.push_back(((Imm >> Bit) & 1) ? NumElts + i : i);
- }
-}
-
-void DecodeVPPERMMask(ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
- SmallVectorImpl<int> &ShuffleMask) {
- assert(RawMask.size() == 16 && "Illegal VPPERM shuffle mask size");
-
- // VPPERM Operation
- // Bits[4:0] - Byte Index (0 - 31)
- // Bits[7:5] - Permute Operation
- //
- // Permute Operation:
- // 0 - Source byte (no logical operation).
- // 1 - Invert source byte.
- // 2 - Bit reverse of source byte.
- // 3 - Bit reverse of inverted source byte.
- // 4 - 00h (zero - fill).
- // 5 - FFh (ones - fill).
- // 6 - Most significant bit of source byte replicated in all bit positions.
- // 7 - Invert most significant bit of source byte and replicate in all bit positions.
- for (int i = 0, e = RawMask.size(); i < e; ++i) {
- if (UndefElts[i]) {
- ShuffleMask.push_back(SM_SentinelUndef);
- continue;
- }
-
- uint64_t M = RawMask[i];
- uint64_t PermuteOp = (M >> 5) & 0x7;
- if (PermuteOp == 4) {
- ShuffleMask.push_back(SM_SentinelZero);
- continue;
- }
- if (PermuteOp != 0) {
- ShuffleMask.clear();
- return;
- }
-
- uint64_t Index = M & 0x1F;
- ShuffleMask.push_back((int)Index);
- }
-}
-
-/// DecodeVPERMMask - this decodes the shuffle masks for VPERMQ/VPERMPD.
-void DecodeVPERMMask(unsigned NumElts, unsigned Imm,
- SmallVectorImpl<int> &ShuffleMask) {
- for (unsigned l = 0; l != NumElts; l += 4)
- for (unsigned i = 0; i != 4; ++i)
- ShuffleMask.push_back(l + ((Imm >> (2 * i)) & 3));
-}
-
-void DecodeZeroExtendMask(unsigned SrcScalarBits, unsigned DstScalarBits,
- unsigned NumDstElts, bool IsAnyExtend,
- SmallVectorImpl<int> &Mask) {
- unsigned Scale = DstScalarBits / SrcScalarBits;
- assert(SrcScalarBits < DstScalarBits &&
- "Expected zero extension mask to increase scalar size");
-
- for (unsigned i = 0; i != NumDstElts; i++) {
- Mask.push_back(i);
- for (unsigned j = 1; j != Scale; j++)
- Mask.push_back(IsAnyExtend ? SM_SentinelUndef : SM_SentinelZero);
- }
-}
-
-void DecodeZeroMoveLowMask(unsigned NumElts,
- SmallVectorImpl<int> &ShuffleMask) {
- ShuffleMask.push_back(0);
- for (unsigned i = 1; i < NumElts; i++)
- ShuffleMask.push_back(SM_SentinelZero);
-}
-
-void DecodeScalarMoveMask(unsigned NumElts, bool IsLoad,
- SmallVectorImpl<int> &Mask) {
- // First element comes from the first element of second source.
- // Remaining elements: Load zero extends / Move copies from first source.
- Mask.push_back(NumElts);
- for (unsigned i = 1; i < NumElts; i++)
- Mask.push_back(IsLoad ? static_cast<int>(SM_SentinelZero) : i);
-}
-
-void DecodeEXTRQIMask(unsigned NumElts, unsigned EltSize, int Len, int Idx,
- SmallVectorImpl<int> &ShuffleMask) {
- unsigned HalfElts = NumElts / 2;
-
- // Only the bottom 6 bits are valid for each immediate.
- Len &= 0x3F;
- Idx &= 0x3F;
-
- // We can only decode this bit extraction instruction as a shuffle if both the
- // length and index work with whole elements.
- if (0 != (Len % EltSize) || 0 != (Idx % EltSize))
- return;
-
- // A length of zero is equivalent to a bit length of 64.
- if (Len == 0)
- Len = 64;
-
- // If the length + index exceeds the bottom 64 bits the result is undefined.
- if ((Len + Idx) > 64) {
- ShuffleMask.append(NumElts, SM_SentinelUndef);
- return;
- }
-
- // Convert index and index to work with elements.
- Len /= EltSize;
- Idx /= EltSize;
-
- // EXTRQ: Extract Len elements starting from Idx. Zero pad the remaining
- // elements of the lower 64-bits. The upper 64-bits are undefined.
- for (int i = 0; i != Len; ++i)
- ShuffleMask.push_back(i + Idx);
- for (int i = Len; i != (int)HalfElts; ++i)
- ShuffleMask.push_back(SM_SentinelZero);
- for (int i = HalfElts; i != (int)NumElts; ++i)
- ShuffleMask.push_back(SM_SentinelUndef);
-}
-
-void DecodeINSERTQIMask(unsigned NumElts, unsigned EltSize, int Len, int Idx,
- SmallVectorImpl<int> &ShuffleMask) {
- unsigned HalfElts = NumElts / 2;
-
- // Only the bottom 6 bits are valid for each immediate.
- Len &= 0x3F;
- Idx &= 0x3F;
-
- // We can only decode this bit insertion instruction as a shuffle if both the
- // length and index work with whole elements.
- if (0 != (Len % EltSize) || 0 != (Idx % EltSize))
- return;
-
- // A length of zero is equivalent to a bit length of 64.
- if (Len == 0)
- Len = 64;
-
- // If the length + index exceeds the bottom 64 bits the result is undefined.
- if ((Len + Idx) > 64) {
- ShuffleMask.append(NumElts, SM_SentinelUndef);
- return;
- }
-
- // Convert index and index to work with elements.
- Len /= EltSize;
- Idx /= EltSize;
-
- // INSERTQ: Extract lowest Len elements from lower half of second source and
- // insert over first source starting at Idx element. The upper 64-bits are
- // undefined.
- for (int i = 0; i != Idx; ++i)
- ShuffleMask.push_back(i);
- for (int i = 0; i != Len; ++i)
- ShuffleMask.push_back(i + NumElts);
- for (int i = Idx + Len; i != (int)HalfElts; ++i)
- ShuffleMask.push_back(i);
- for (int i = HalfElts; i != (int)NumElts; ++i)
- ShuffleMask.push_back(SM_SentinelUndef);
-}
-
-void DecodeVPERMILPMask(unsigned NumElts, unsigned ScalarBits,
- ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
- SmallVectorImpl<int> &ShuffleMask) {
- unsigned VecSize = NumElts * ScalarBits;
- unsigned NumLanes = VecSize / 128;
- unsigned NumEltsPerLane = NumElts / NumLanes;
- assert((VecSize == 128 || VecSize == 256 || VecSize == 512) &&
- "Unexpected vector size");
- assert((ScalarBits == 32 || ScalarBits == 64) && "Unexpected element size");
-
- for (unsigned i = 0, e = RawMask.size(); i < e; ++i) {
- if (UndefElts[i]) {
- ShuffleMask.push_back(SM_SentinelUndef);
- continue;
- }
- uint64_t M = RawMask[i];
- M = (ScalarBits == 64 ? ((M >> 1) & 0x1) : (M & 0x3));
- unsigned LaneOffset = i & ~(NumEltsPerLane - 1);
- ShuffleMask.push_back((int)(LaneOffset + M));
- }
-}
-
-void DecodeVPERMIL2PMask(unsigned NumElts, unsigned ScalarBits, unsigned M2Z,
- ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
- SmallVectorImpl<int> &ShuffleMask) {
- unsigned VecSize = NumElts * ScalarBits;
- unsigned NumLanes = VecSize / 128;
- unsigned NumEltsPerLane = NumElts / NumLanes;
- assert((VecSize == 128 || VecSize == 256) && "Unexpected vector size");
- assert((ScalarBits == 32 || ScalarBits == 64) && "Unexpected element size");
- assert((NumElts == RawMask.size()) && "Unexpected mask size");
-
- for (unsigned i = 0, e = RawMask.size(); i < e; ++i) {
- if (UndefElts[i]) {
- ShuffleMask.push_back(SM_SentinelUndef);
- continue;
- }
-
- // VPERMIL2 Operation.
- // Bits[3] - Match Bit.
- // Bits[2:1] - (Per Lane) PD Shuffle Mask.
- // Bits[2:0] - (Per Lane) PS Shuffle Mask.
- uint64_t Selector = RawMask[i];
- unsigned MatchBit = (Selector >> 3) & 0x1;
-
- // M2Z[0:1] MatchBit
- // 0Xb X Source selected by Selector index.
- // 10b 0 Source selected by Selector index.
- // 10b 1 Zero.
- // 11b 0 Zero.
- // 11b 1 Source selected by Selector index.
- if ((M2Z & 0x2) != 0 && MatchBit != (M2Z & 0x1)) {
- ShuffleMask.push_back(SM_SentinelZero);
- continue;
- }
-
- int Index = i & ~(NumEltsPerLane - 1);
- if (ScalarBits == 64)
- Index += (Selector >> 1) & 0x1;
- else
- Index += Selector & 0x3;
-
- int Src = (Selector >> 2) & 0x1;
- Index += Src * NumElts;
- ShuffleMask.push_back(Index);
- }
-}
-
-void DecodeVPERMVMask(ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
- SmallVectorImpl<int> &ShuffleMask) {
- uint64_t EltMaskSize = RawMask.size() - 1;
- for (int i = 0, e = RawMask.size(); i != e; ++i) {
- if (UndefElts[i]) {
- ShuffleMask.push_back(SM_SentinelUndef);
- continue;
- }
- uint64_t M = RawMask[i];
- M &= EltMaskSize;
- ShuffleMask.push_back((int)M);
- }
-}
-
-void DecodeVPERMV3Mask(ArrayRef<uint64_t> RawMask, const APInt &UndefElts,
- SmallVectorImpl<int> &ShuffleMask) {
- uint64_t EltMaskSize = (RawMask.size() * 2) - 1;
- for (int i = 0, e = RawMask.size(); i != e; ++i) {
- if (UndefElts[i]) {
- ShuffleMask.push_back(SM_SentinelUndef);
- continue;
- }
- uint64_t M = RawMask[i];
- M &= EltMaskSize;
- ShuffleMask.push_back((int)M);
- }
-}
-
-} // llvm namespace
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