From fb55a8fd7c38aa09d9c243d48a8a72d890f36a3d Mon Sep 17 00:00:00 2001 From: Arnold Schwaighofer Date: Fri, 8 Feb 2013 14:50:48 +0000 Subject: ARM cost model: Address computation in vector mem ops not free Adds a function to target transform info to query for the cost of address computation. The cost model analysis pass now also queries this interface. The code in LoopVectorize adds the cost of address computation as part of the memory instruction cost calculation. Only there, we know whether the instruction will be scalarized or not. Increase the penality for inserting in to D registers on swift. This becomes necessary because we now always assume that address computation has a cost and three is a closer value to the architecture. radar://13097204 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174713 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Analysis/CostModel.cpp | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'lib/Analysis/CostModel.cpp') diff --git a/lib/Analysis/CostModel.cpp b/lib/Analysis/CostModel.cpp index 1784512bce..8435e39707 100644 --- a/lib/Analysis/CostModel.cpp +++ b/lib/Analysis/CostModel.cpp @@ -85,6 +85,11 @@ unsigned CostModelAnalysis::getInstructionCost(const Instruction *I) const { return -1; switch (I->getOpcode()) { + case Instruction::GetElementPtr:{ + Type *ValTy = I->getOperand(0)->getType()->getPointerElementType(); + return TTI->getAddressComputationCost(ValTy); + } + case Instruction::Ret: case Instruction::PHI: case Instruction::Br: { -- cgit v1.2.3-18-g5258