[X86] Use target independent masked expandload and compressstore intrinsics to implement expandload/compressstore builtins.
Summary: We've had these target independent intrinsics for at least a year and a half. Looks like they do exactly what we need here and the backend already supports them.
Reviewers: RKSimon, delena, spatel, GBuella
Reviewed By: RKSimon
Subscribers: cfe-commits, llvm-commits
Differential Revision: https://reviews.llvm.org/D47693
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@334366
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projects / clang / commit