From: Elena Demikhovsky <elena.demikhovsky@intel.com>
Date: Sun, 30 Aug 2015 07:28:18 +0000 (+0000)
Subject: New interface function is added to VectorUtils
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=d335656e0edcc7ba867a789ffd39f9e454b56487;hp=d335656e0edcc7ba867a789ffd39f9e454b56487;p=oota-llvm.git

New interface function is added to VectorUtils
Value *getSplatValue(Value *Val);

It complements the CreateVectorSplat(), which creates 2 instructions - insertelement and shuffle with all-zero mask.

The new function recognizes the pattern - insertelement+shuffle and returns the splat value (or nullptr).
It also returns a splat value form ConstantDataVector, for completeness.

Differential Revision:	http://reviews.llvm.org/D11124



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246371 91177308-0d34-0410-b5e6-96231b3b80d8
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