From daf7b5c8f2889ddb923544565f07518d504aa574 Mon Sep 17 00:00:00 2001 From: Nadav Rotem Date: Mon, 24 Dec 2012 08:57:47 +0000 Subject: Change the codegen Cost Model API for shuffeles. This patch removes the API for broadcast and adds a more general API that accepts an enum of known shuffles. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171022 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Target/TargetTransformImpl.h | 2 +- include/llvm/TargetTransformInfo.h | 10 +++++++--- 2 files changed, 8 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/llvm/Target/TargetTransformImpl.h b/include/llvm/Target/TargetTransformImpl.h index 59b7ffc826..f2229748be 100644 --- a/include/llvm/Target/TargetTransformImpl.h +++ b/include/llvm/Target/TargetTransformImpl.h @@ -71,7 +71,7 @@ public: virtual unsigned getArithmeticInstrCost(unsigned Opcode, Type *Ty) const; - virtual unsigned getBroadcastCost(Type *Tp) const; + virtual unsigned getShuffleCost(ShuffleKind Kind, Type *Tp) const; virtual unsigned getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src) const; diff --git a/include/llvm/TargetTransformInfo.h b/include/llvm/TargetTransformInfo.h index 718d4bcfea..1a5dda3bb2 100644 --- a/include/llvm/TargetTransformInfo.h +++ b/include/llvm/TargetTransformInfo.h @@ -157,14 +157,18 @@ class VectorTargetTransformInfo { public: virtual ~VectorTargetTransformInfo() {} + enum ShuffleKind { + Broadcast, // Broadcast element 0 to all other elements. + Reverse // Reverse the order of the vector. + }; + /// Returns the expected cost of arithmetic ops, such as mul, xor, fsub, etc. virtual unsigned getArithmeticInstrCost(unsigned Opcode, Type *Ty) const { return 1; } - /// Returns the cost of a vector broadcast of a scalar at place zero to a - /// vector of type 'Tp'. - virtual unsigned getBroadcastCost(Type *Tp) const { + /// Returns the cost of a shuffle instruction of kind Kind and of type Tp. + virtual unsigned getShuffleCost(ShuffleKind Kind, Type *Tp) const { return 1; } -- cgit v1.2.3