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Elena Demikhovsky
2a81f662cd
X86 CodeGen: Optimized pattern for truncate with unsigned saturation.
DAG patterns optimization: truncate + unsigned saturation supported by VPMOVUS* instructions in AVX-512. And VPACKUS* instructions on SEE* targets. Differential Revision: https://reviews.llvm.org/D28216 llvm-svn: 291670
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