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https://github.com/c64scene-ar/llvm-6502.git
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29f94c7201
This commit starts with a "git mv ARM64 AArch64" and continues out from there, renaming the C++ classes, intrinsics, and other target-local objects for consistency. "ARM64" test directories are also moved, and tests that began their life in ARM64 use an arm64 triple, those from AArch64 use an aarch64 triple. Both should be equivalent though. This finishes the AArch64 merge, and everyone should feel free to continue committing as normal now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209577 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
2.3 KiB
C++
60 lines
2.3 KiB
C++
//===-- AArch64SelectionDAGInfo.cpp - AArch64 SelectionDAG Info -----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the AArch64SelectionDAGInfo class.
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//
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//===----------------------------------------------------------------------===//
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#include "AArch64TargetMachine.h"
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using namespace llvm;
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#define DEBUG_TYPE "aarch64-selectiondag-info"
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AArch64SelectionDAGInfo::AArch64SelectionDAGInfo(const TargetMachine &TM)
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: TargetSelectionDAGInfo(TM),
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Subtarget(&TM.getSubtarget<AArch64Subtarget>()) {}
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AArch64SelectionDAGInfo::~AArch64SelectionDAGInfo() {}
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SDValue AArch64SelectionDAGInfo::EmitTargetCodeForMemset(
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SelectionDAG &DAG, SDLoc dl, SDValue Chain, SDValue Dst, SDValue Src,
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SDValue Size, unsigned Align, bool isVolatile,
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MachinePointerInfo DstPtrInfo) const {
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// Check to see if there is a specialized entry-point for memory zeroing.
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ConstantSDNode *V = dyn_cast<ConstantSDNode>(Src);
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ConstantSDNode *SizeValue = dyn_cast<ConstantSDNode>(Size);
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const char *bzeroEntry =
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(V && V->isNullValue()) ? Subtarget->getBZeroEntry() : nullptr;
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// For small size (< 256), it is not beneficial to use bzero
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// instead of memset.
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if (bzeroEntry && (!SizeValue || SizeValue->getZExtValue() > 256)) {
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const AArch64TargetLowering &TLI =
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*static_cast<const AArch64TargetLowering *>(
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DAG.getTarget().getTargetLowering());
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EVT IntPtr = TLI.getPointerTy();
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Type *IntPtrTy = getDataLayout()->getIntPtrType(*DAG.getContext());
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TargetLowering::ArgListTy Args;
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TargetLowering::ArgListEntry Entry;
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Entry.Node = Dst;
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Entry.Ty = IntPtrTy;
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Args.push_back(Entry);
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Entry.Node = Size;
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Args.push_back(Entry);
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TargetLowering::CallLoweringInfo CLI(DAG);
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CLI.setDebugLoc(dl).setChain(Chain)
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.setCallee(CallingConv::C, Type::getVoidTy(*DAG.getContext()),
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DAG.getExternalSymbol(bzeroEntry, IntPtr), &Args, 0)
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.setDiscardResult();
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std::pair<SDValue, SDValue> CallResult = TLI.LowerCallTo(CLI);
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return CallResult.second;
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}
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return SDValue();
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}
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