From 9cbd52dd7281e6e6e30303f4676fe5c7d5b950b1 Mon Sep 17 00:00:00 2001 From: Jacques Pienaar Date: Tue, 1 Aug 2017 18:40:08 +0000 Subject: [PATCH] [lanai] Add getIntImmCost in LanaiTargetTransformInfo. Add simple int immediate cost function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@309721 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/Lanai/LanaiTargetTransformInfo.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/lib/Target/Lanai/LanaiTargetTransformInfo.h b/lib/Target/Lanai/LanaiTargetTransformInfo.h index d95c16fc3ca..12613ed273f 100644 --- a/lib/Target/Lanai/LanaiTargetTransformInfo.h +++ b/lib/Target/Lanai/LanaiTargetTransformInfo.h @@ -22,6 +22,7 @@ #include "LanaiTargetMachine.h" #include "llvm/Analysis/TargetTransformInfo.h" #include "llvm/CodeGen/BasicTTIImpl.h" +#include "llvm/Support/MathExtras.h" #include "llvm/Target/TargetLowering.h" namespace llvm { @@ -49,6 +50,32 @@ public: return TTI::PSK_Software; } + int getIntImmCost(const APInt &Imm, Type *Ty) { + assert(Ty->isIntegerTy()); + if (Imm == 0) + return TTI::TCC_Free; + if (isInt<16>(Imm.getSExtValue())) + return TTI::TCC_Basic; + if (isInt<21>(Imm.getZExtValue())) + return TTI::TCC_Basic; + if (isInt<32>(Imm.getSExtValue())) { + if ((Imm.getSExtValue() & 0xFFFF) == 0) + return TTI::TCC_Basic; + return 2 * TTI::TCC_Basic; + } + + return 4 * TTI::TCC_Basic; + } + + int getIntImmCost(unsigned Opc, unsigned Idx, const APInt &Imm, Type *Ty) { + return getIntImmCost(Imm, Ty); + } + + int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm, + Type *Ty) { + return getIntImmCost(Imm, Ty); + } + unsigned getArithmeticInstrCost( unsigned Opcode, Type *Ty, TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue, -- 2.11.0