6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-20 10:24:12 +00:00
Code Issues Projects Releases Wiki Activity

[AVX] Add INSERT_SUBVECTOR and support it on x86. This provides a

Browse Source 
default implementation for x86, going through the stack in a similr
fashion to how the codegen implements BUILD_VECTOR.  Eventually this
will get matched to VINSERTF128 if AVX is available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124307 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Greene
2011-01-26 19:13:22 +00:00
parent d2c9793bdf
commit cfe33c46aa
6 changed files with 105 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
View File

@ -3082,6 +3082,30 @@ SDValue SelectionDAG::getNode(unsigned Opcode, DebugLoc DL, EVT VT,
case ISD::VECTOR_SHUFFLE:
llvm_unreachable("should use getVectorShuffle constructor!");
break;
case ISD::INSERT_SUBVECTOR: {
SDValue Index = N3;
if (VT.isSimple() && N1.getValueType().isSimple()
&& N2.getValueType().isSimple()) {
assert(VT.isVector() && N1.getValueType().isVector() &&
N2.getValueType().isVector() &&
"Insert subvector VTs must be a vectors");
assert(VT == N1.getValueType() &&
"Dest and insert subvector source types must match!");
assert(N2.getValueType().getSimpleVT() <= N1.getValueType().getSimpleVT() &&
"Insert subvector must be from smaller vector to larger vector!");
if (ConstantSDNode *CSD = dyn_cast<ConstantSDNode>(Index.getNode())) {
uint64_t Idx = CSD->getZExtValue();
assert((N2.getValueType().getVectorNumElements() + Idx
<= VT.getVectorNumElements())
&& "Insert subvector overflow!");
}
// Trivial insertion.
if (VT.getSimpleVT() == N2.getValueType().getSimpleVT())
return N2;
}
break;
}
case ISD::BITCAST:
// Fold bit_convert nodes from a type to themselves.
if (N1.getValueType() == VT)
@ -5811,6 +5835,7 @@ std::string SDNode::getOperationName(const SelectionDAG *G) const {
case ISD::INSERT_VECTOR_ELT: return "insert_vector_elt";
case ISD::EXTRACT_VECTOR_ELT: return "extract_vector_elt";
case ISD::CONCAT_VECTORS: return "concat_vectors";
case ISD::INSERT_SUBVECTOR: return "insert_subvector";
case ISD::EXTRACT_SUBVECTOR: return "extract_subvector";
case ISD::SCALAR_TO_VECTOR: return "scalar_to_vector";
case ISD::VECTOR_SHUFFLE: return "vector_shuffle";