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Most of the NEON shuffle instructions do not support 64-bit element types.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84785 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson 2009-10-21 21:36:27 +00:00
parent 028fa77d56
commit 20d108140e
1 changed files with 18 additions and 3 deletions
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21
lib/Target/ARM/ARMISelLowering.cpp
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@ -2361,8 +2361,11 @@ static bool isVREVMask(const SmallVectorImpl<int> &M, EVT VT,
assert((BlockSize==16 || BlockSize==32 || BlockSize==64) &&
"Only possible block sizes for VREV are: 16, 32, 64");
unsigned NumElts = VT.getVectorNumElements();
unsigned EltSz = VT.getVectorElementType().getSizeInBits();
if (EltSz == 64)
return false;
unsigned NumElts = VT.getVectorNumElements();
unsigned BlockElts = M[0] + 1;
if (BlockSize <= EltSz || BlockSize != BlockElts * EltSz)
@ -2379,6 +2382,10 @@ static bool isVREVMask(const SmallVectorImpl<int> &M, EVT VT,
static bool isVTRNMask(const SmallVectorImpl<int> &M, EVT VT,
unsigned &WhichResult) {
unsigned EltSz = VT.getVectorElementType().getSizeInBits();
if (EltSz == 64)
return false;
unsigned NumElts = VT.getVectorNumElements();
WhichResult = (M[0] == 0 ? 0 : 1);
for (unsigned i = 0; i < NumElts; i += 2) {
@ -2391,6 +2398,10 @@ static bool isVTRNMask(const SmallVectorImpl<int> &M, EVT VT,
static bool isVUZPMask(const SmallVectorImpl<int> &M, EVT VT,
unsigned &WhichResult) {
unsigned EltSz = VT.getVectorElementType().getSizeInBits();
if (EltSz == 64)
return false;
unsigned NumElts = VT.getVectorNumElements();
WhichResult = (M[0] == 0 ? 0 : 1);
for (unsigned i = 0; i != NumElts; ++i) {
@ -2399,7 +2410,7 @@ static bool isVUZPMask(const SmallVectorImpl<int> &M, EVT VT,
}
// VUZP.32 for 64-bit vectors is a pseudo-instruction alias for VTRN.32.
if (VT.is64BitVector() && VT.getVectorElementType().getSizeInBits() == 32)
if (VT.is64BitVector() && EltSz == 32)
return false;
return true;
@ -2407,6 +2418,10 @@ static bool isVUZPMask(const SmallVectorImpl<int> &M, EVT VT,
static bool isVZIPMask(const SmallVectorImpl<int> &M, EVT VT,
unsigned &WhichResult) {
unsigned EltSz = VT.getVectorElementType().getSizeInBits();
if (EltSz == 64)
return false;
unsigned NumElts = VT.getVectorNumElements();
WhichResult = (M[0] == 0 ? 0 : 1);
unsigned Idx = WhichResult * NumElts / 2;
@ -2418,7 +2433,7 @@ static bool isVZIPMask(const SmallVectorImpl<int> &M, EVT VT,
}
// VZIP.32 for 64-bit vectors is a pseudo-instruction alias for VTRN.32.
if (VT.is64BitVector() && VT.getVectorElementType().getSizeInBits() == 32)
if (VT.is64BitVector() && EltSz == 32)
return false;
return true;