48e54f3a22
In the AArch64 version this helps reduce the number of blr instruction (indirect jumps) in from 325 to 87, and reduces the size of the object file by 4%. It seems to help make the code more efficient even if it doesn't greatly affect compile time. The AMDGPU variants are already marked as final.
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
//===-- MipsTargetTransformInfo.h - Mips specific TTI -----------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_MIPS_MIPSTARGETTRANSFORMINFO_H
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#define LLVM_LIB_TARGET_MIPS_MIPSTARGETTRANSFORMINFO_H
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#include "MipsTargetMachine.h"
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#include "llvm/Analysis/TargetTransformInfo.h"
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#include "llvm/CodeGen/BasicTTIImpl.h"
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namespace llvm {
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class MipsTTIImpl final : public BasicTTIImplBase<MipsTTIImpl> {
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using BaseT = BasicTTIImplBase<MipsTTIImpl>;
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using TTI = TargetTransformInfo;
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friend BaseT;
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const MipsSubtarget *ST;
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const MipsTargetLowering *TLI;
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const MipsSubtarget *getST() const { return ST; }
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const MipsTargetLowering *getTLI() const { return TLI; }
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public:
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explicit MipsTTIImpl(const MipsTargetMachine *TM, const Function &F)
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: BaseT(TM, F.getDataLayout()), ST(TM->getSubtargetImpl(F)),
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TLI(ST->getTargetLowering()) {}
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bool hasDivRemOp(Type *DataType, bool IsSigned) const override;
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bool isLSRCostLess(const TargetTransformInfo::LSRCost &C1,
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const TargetTransformInfo::LSRCost &C2) const override;
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};
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} // end namespace llvm
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#endif
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