Files
clang-p2996/llvm/test/CodeGen/X86
Simon Pilgrim 2f48122cc9 [X86][SSE] Lower constant vXi8 ISD::SRL/ISD::SRA using PMULLW
Extending the concept introduced in D49562, this patch lowers constant vXi8 ISD::SRL/ISD::SRA by zero/sign extending to vXi16 and using PMULLW and then truncating the high 8 bits of the result.

Differential Revision: https://reviews.llvm.org/D50781

llvm-svn: 340062
2018-08-17 18:03:11 +00:00
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