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[X86] Moved getTargetConstantFromNode function so a future patch is more understandable. NFCI. 

llvm-svn: 288147
This commit is contained in:
Simon Pilgrim 2016-11-29 15:32:58 +00:00
parent 9ee65aca3d
commit 001368abc8
1 changed files with 19 additions and 19 deletions
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38
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -5018,6 +5018,25 @@ static SDValue peekThroughOneUseBitcasts(SDValue V) {
return V;
}
static const Constant *getTargetConstantFromNode(SDValue Op) {
Op = peekThroughBitcasts(Op);
auto *Load = dyn_cast<LoadSDNode>(Op);
if (!Load)
return nullptr;
SDValue Ptr = Load->getBasePtr();
if (Ptr->getOpcode() == X86ISD::Wrapper ||
Ptr->getOpcode() == X86ISD::WrapperRIP)
Ptr = Ptr->getOperand(0);
auto *CNode = dyn_cast<ConstantPoolSDNode>(Ptr);
if (!CNode || CNode->isMachineConstantPoolEntry())
return nullptr;
return dyn_cast<Constant>(CNode->getConstVal());
}
static bool getTargetShuffleMaskIndices(SDValue MaskNode,
unsigned MaskEltSizeInBits,
SmallVectorImpl<uint64_t> &RawMask) {
@ -5101,25 +5120,6 @@ static bool getTargetShuffleMaskIndices(SDValue MaskNode,
return true;
}
static const Constant *getTargetConstantFromNode(SDValue Op) {
Op = peekThroughBitcasts(Op);
auto *Load = dyn_cast<LoadSDNode>(Op);
if (!Load)
return nullptr;
SDValue Ptr = Load->getBasePtr();
if (Ptr->getOpcode() == X86ISD::Wrapper ||
Ptr->getOpcode() == X86ISD::WrapperRIP)
Ptr = Ptr->getOperand(0);
auto *CNode = dyn_cast<ConstantPoolSDNode>(Ptr);
if (!CNode || CNode->isMachineConstantPoolEntry())
return nullptr;
return dyn_cast<Constant>(CNode->getConstVal());
}
/// Calculates the shuffle mask corresponding to the target-specific opcode.
/// If the mask could be calculated, returns it in \p Mask, returns the shuffle
/// operands in \p Ops, and returns true.