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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2015-06-13 15:23:58 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2015-06-13 15:23:58 +0000 |
| commit | 2c35e7a264608de328d65755d499fb9a94bbf9fe (patch) | |
| tree | 4e87a5d00e081f028efcb119ca071129b99e570b /llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | 85924e5bf37724e8f14efff2e7bf59eebf7335fc (diff) | |
| download | bcm5719-llvm-2c35e7a264608de328d65755d499fb9a94bbf9fe.tar.gz bcm5719-llvm-2c35e7a264608de328d65755d499fb9a94bbf9fe.zip | |
[SelectionDAG] Added assertions + UNDEF handling for BSWAP node creation.
llvm-svn: 239679
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 27fa3d2b1e3..20cec6ebad1 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -3082,6 +3082,14 @@ SDValue SelectionDAG::getNode(unsigned Opcode, SDLoc DL, if (OpOpcode == ISD::UNDEF) return getUNDEF(VT); break; + case ISD::BSWAP: + assert(VT.isInteger() && VT == Operand.getValueType() && + "Invalid BSWAP!"); + assert((VT.getScalarSizeInBits() % 16 == 0) && + "BSWAP types must be a multiple of 16 bits!"); + if (OpOpcode == ISD::UNDEF) + return getUNDEF(VT); + break; case ISD::BITCAST: // Basic sanity checking. assert(VT.getSizeInBits() == Operand.getValueType().getSizeInBits() |
