diff options
author | Jacques Pienaar <jpienaar@google.com> | 2017-08-01 18:40:08 +0000 |
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committer | Jacques Pienaar <jpienaar@google.com> | 2017-08-01 18:40:08 +0000 |
commit | 9cbd52dd7281e6e6e30303f4676fe5c7d5b950b1 (patch) | |
tree | 8761a526e1a5ed246810590a54d2a018b60a44d0 /lib/Target/Lanai | |
parent | b9614f55884ac93217910527dfa405e4630ece1f (diff) |
[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
Diffstat (limited to 'lib/Target/Lanai')
-rw-r--r-- | lib/Target/Lanai/LanaiTargetTransformInfo.h | 27 |
1 files changed, 27 insertions, 0 deletions
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, |