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1c4b6de5ed
When enabling PPC64LE, I disabled some optimizations of BUILD_VECTOR nodes for little endian because wrong results were produced. I've subsequently investigated and found this is due to a call to BuildVectorSDNode::isConstantSplat that was always specifying big-endian. With this changed to correctly identify the target endianness, the optimizations work as expected. I found another case of a call to the same method with big-endian hardcoded, in PPC::isAllNegativeZeroVector(). I discovered this was an orphaned method with no callers, so I've just removed it. The existing test/CodeGen/PowerPC/vec_constants.ll checks these optimizations, so for testing I've just added a variant for little endian. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234011 91177308-0d34-0410-b5e6-96231b3b80d8 |
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