[X86] Accept SELECT op code for x86-64 fp128 type

DAGTypeLegalizer::CanSkipSoftenFloatOperand should allow
SELECT op code for x86_64 fp128 type for MME targets,
so SoftenFloatOperand does not abort on SELECT op code.

Differential Revision: http://reviews.llvm.org/D21758


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275818 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed