diff options
| author | Benjamin Kramer <benny.kra@googlemail.com> | 2019-05-28 12:52:57 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2019-05-28 12:52:57 +0000 |
| commit | 57e267a2e92a7744df043c740cb946952c05ede8 (patch) | |
| tree | 1edd5fee3b9af9256b739fada22571be37c3560c /llvm/lib/CodeGen/SelectionDAG | |
| parent | 19e91253c0a5e021697f9271c299d6816cbab642 (diff) | |
| download | bcm5719-llvm-57e267a2e92a7744df043c740cb946952c05ede8.tar.gz bcm5719-llvm-57e267a2e92a7744df043c740cb946952c05ede8.zip | |
[X86] Custom lower CONCAT_VECTORS of v2i1
The generic legalizer cannot handle this. Add an assert instead of
silently miscompiling vectors with elements smaller than 8 bits.
llvm-svn: 361814
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 52ae1e01a9e..19baf178f12 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -1415,6 +1415,7 @@ SDValue SelectionDAGLegalize::ExpandVectorBuildThroughStack(SDNode* Node) { // Emit a store of each element to the stack slot. SmallVector<SDValue, 8> Stores; unsigned TypeByteSize = EltVT.getSizeInBits() / 8; + assert(TypeByteSize > 0 && "Vector element type too small for stack store!"); // Store (in the right endianness) the elements to memory. for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { // Ignore undef elements. |
