Jingyue Wu 020938f3ee [TTI] BasicTTIImpl assumes no vector registers ... Summary: Following the discussion on r241884, it's more reasonable to assume that a target has no vector registers by default instead of letting every such target overrides getNumberOfRegisters. Therefore, this patch modifies BasicTTIImpl::getNumberOfRegisters to return 0 when Vector is true, and partially reverts r241884 which modifies NVPTXTTIImpl::getNumberOfRegisters. It also fixes a performance bug in LoopVectorizer. Even if a target has no vector registers, vectorization may still help ILP. So, we need both checks to be false before disabling loop vectorization all together. Reviewers: hfinkel Subscribers: llvm-commits, jholewinski Differential Revision: http://reviews.llvm.org/D11108 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241942 91177308-0d34-0410-b5e6-96231b3b80d8		2015-07-10 21:14:54 +00:00
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llvm	[TTI] BasicTTIImpl assumes no vector registers	2015-07-10 21:14:54 +00:00
llvm-c	Revert the new EH instructions	2015-07-10 07:15:17 +00:00