[llvm] 1c4f118 - [X86][SSE] getShuffleScalarElt - minor NFC cleanup.
Simon Pilgrim via llvm-commits
llvm-commits at lists.llvm.org
Wed May 6 06:06:30 PDT 2020
Author: Simon Pilgrim
Date: 2020-05-06T14:05:07+01:00
New Revision: 1c4f118d893fd8042b0ce781d68242e88337be62
URL: https://github.com/llvm/llvm-project/commit/1c4f118d893fd8042b0ce781d68242e88337be62
DIFF: https://github.com/llvm/llvm-project/commit/1c4f118d893fd8042b0ce781d68242e88337be62.diff
LOG: [X86][SSE] getShuffleScalarElt - minor NFC cleanup.
Use SelectionDAG::MaxRecursionDepth instead of (equal) hard coded constant.
clang-format
Added:
Modified:
llvm/lib/Target/X86/X86ISelLowering.cpp
Removed:
################################################################################
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index e842f1e16fc3..9d2977c950cf 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -7758,24 +7758,24 @@ static bool getTargetShuffleInputs(SDValue Op, SmallVectorImpl<SDValue> &Inputs,
/// element of the result of the vector shuffle.
static SDValue getShuffleScalarElt(SDNode *N, unsigned Index, SelectionDAG &DAG,
unsigned Depth) {
- if (Depth == 6)
- return SDValue(); // Limit search depth.
+ if (Depth >= SelectionDAG::MaxRecursionDepth)
+ return SDValue(); // Limit search depth.
SDValue V = SDValue(N, 0);
EVT VT = V.getValueType();
unsigned Opcode = V.getOpcode();
// Recurse into ISD::VECTOR_SHUFFLE node to find scalars.
- if (const ShuffleVectorSDNode *SV = dyn_cast<ShuffleVectorSDNode>(N)) {
+ if (auto *SV = dyn_cast<ShuffleVectorSDNode>(N)) {
int Elt = SV->getMaskElt(Index);
if (Elt < 0)
return DAG.getUNDEF(VT.getVectorElementType());
unsigned NumElems = VT.getVectorNumElements();
- SDValue NewV = (Elt < (int)NumElems) ? SV->getOperand(0)
- : SV->getOperand(1);
- return getShuffleScalarElt(NewV.getNode(), Elt % NumElems, DAG, Depth+1);
+ SDValue NewV =
+ (Elt < (int)NumElems) ? SV->getOperand(0) : SV->getOperand(1);
+ return getShuffleScalarElt(NewV.getNode(), Elt % NumElems, DAG, Depth + 1);
}
// Recurse into target specific vector shuffles to find scalars.
@@ -7787,7 +7787,8 @@ static SDValue getShuffleScalarElt(SDNode *N, unsigned Index, SelectionDAG &DAG,
SmallVector<SDValue, 16> ShuffleOps;
bool IsUnary;
- if (!getTargetShuffleMask(N, ShufVT, true, ShuffleOps, ShuffleMask, IsUnary))
+ if (!getTargetShuffleMask(N, ShufVT, true, ShuffleOps, ShuffleMask,
+ IsUnary))
return SDValue();
int Elt = ShuffleMask[Index];
@@ -7797,10 +7798,9 @@ static SDValue getShuffleScalarElt(SDNode *N, unsigned Index, SelectionDAG &DAG,
if (Elt == SM_SentinelUndef)
return DAG.getUNDEF(ShufSVT);
- assert(0 <= Elt && Elt < (2*NumElems) && "Shuffle index out of range");
+ assert(0 <= Elt && Elt < (2 * NumElems) && "Shuffle index out of range");
SDValue NewV = (Elt < NumElems) ? ShuffleOps[0] : ShuffleOps[1];
- return getShuffleScalarElt(NewV.getNode(), Elt % NumElems, DAG,
- Depth+1);
+ return getShuffleScalarElt(NewV.getNode(), Elt % NumElems, DAG, Depth + 1);
}
// Recurse into insert_subvector base/sub vector to find scalars.
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