From 06f5ebc5a1604b01689cf2d482dd05f956538af6 Mon Sep 17 00:00:00 2001 From: Quentin Colombet Date: Fri, 31 May 2013 21:29:03 +0000 Subject: Loop Strength Reduce: Scaling factor cost. Account for the cost of scaling factor in Loop Strength Reduce when rating the formulae. This uses a target hook. The default implementation of the hook is: if the addressing mode is legal, the scaling factor is free. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183045 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/BasicTargetTransformInfo.cpp | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'lib/CodeGen/BasicTargetTransformInfo.cpp') diff --git a/lib/CodeGen/BasicTargetTransformInfo.cpp b/lib/CodeGen/BasicTargetTransformInfo.cpp index 4a99184f5e..92a5bb70f4 100644 --- a/lib/CodeGen/BasicTargetTransformInfo.cpp +++ b/lib/CodeGen/BasicTargetTransformInfo.cpp @@ -71,6 +71,9 @@ public: virtual bool isLegalAddressingMode(Type *Ty, GlobalValue *BaseGV, int64_t BaseOffset, bool HasBaseReg, int64_t Scale) const; + virtual int getScalingFactorCost(Type *Ty, GlobalValue *BaseGV, + int64_t BaseOffset, bool HasBaseReg, + int64_t Scale) const; virtual bool isTruncateFree(Type *Ty1, Type *Ty2) const; virtual bool isTypeLegal(Type *Ty) const; virtual unsigned getJumpBufAlignment() const; @@ -139,6 +142,17 @@ bool BasicTTI::isLegalAddressingMode(Type *Ty, GlobalValue *BaseGV, return TLI->isLegalAddressingMode(AM, Ty); } +int BasicTTI::getScalingFactorCost(Type *Ty, GlobalValue *BaseGV, + int64_t BaseOffset, bool HasBaseReg, + int64_t Scale) const { + TargetLoweringBase::AddrMode AM; + AM.BaseGV = BaseGV; + AM.BaseOffs = BaseOffset; + AM.HasBaseReg = HasBaseReg; + AM.Scale = Scale; + return TLI->getScalingFactorCost(AM, Ty); +} + bool BasicTTI::isTruncateFree(Type *Ty1, Type *Ty2) const { return TLI->isTruncateFree(Ty1, Ty2); } -- cgit v1.2.3