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-rw-r--r--contrib/llvm/lib/Target/RISCV/RISCVTargetObjectFile.cpp114
1 files changed, 0 insertions, 114 deletions
diff --git a/contrib/llvm/lib/Target/RISCV/RISCVTargetObjectFile.cpp b/contrib/llvm/lib/Target/RISCV/RISCVTargetObjectFile.cpp
deleted file mode 100644
index bbd45c970d3d..000000000000
--- a/contrib/llvm/lib/Target/RISCV/RISCVTargetObjectFile.cpp
+++ /dev/null
@@ -1,114 +0,0 @@
-//===-- RISCVTargetObjectFile.cpp - RISCV Object Info -----------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "RISCVTargetObjectFile.h"
-#include "RISCVTargetMachine.h"
-#include "llvm/BinaryFormat/ELF.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/MC/MCSectionELF.h"
-
-using namespace llvm;
-
-void RISCVELFTargetObjectFile::Initialize(MCContext &Ctx,
- const TargetMachine &TM) {
- TargetLoweringObjectFileELF::Initialize(Ctx, TM);
- InitializeELF(TM.Options.UseInitArray);
-
- SmallDataSection = getContext().getELFSection(
- ".sdata", ELF::SHT_PROGBITS, ELF::SHF_WRITE | ELF::SHF_ALLOC);
- SmallBSSSection = getContext().getELFSection(".sbss", ELF::SHT_NOBITS,
- ELF::SHF_WRITE | ELF::SHF_ALLOC);
-}
-
-// A address must be loaded from a small section if its size is less than the
-// small section size threshold. Data in this section could be addressed by
-// using gp_rel operator.
-bool RISCVELFTargetObjectFile::isInSmallSection(uint64_t Size) const {
- // gcc has traditionally not treated zero-sized objects as small data, so this
- // is effectively part of the ABI.
- return Size > 0 && Size <= SSThreshold;
-}
-
-// Return true if this global address should be placed into small data/bss
-// section.
-bool RISCVELFTargetObjectFile::isGlobalInSmallSection(
- const GlobalObject *GO, const TargetMachine &TM) const {
- // Only global variables, not functions.
- const GlobalVariable *GVA = dyn_cast<GlobalVariable>(GO);
- if (!GVA)
- return false;
-
- // If the variable has an explicit section, it is placed in that section.
- if (GVA->hasSection()) {
- StringRef Section = GVA->getSection();
-
- // Explicitly placing any variable in the small data section overrides
- // the global -G value.
- if (Section == ".sdata" || Section == ".sbss")
- return true;
-
- // Otherwise reject putting the variable to small section if it has an
- // explicit section name.
- return false;
- }
-
- if (((GVA->hasExternalLinkage() && GVA->isDeclaration()) ||
- GVA->hasCommonLinkage()))
- return false;
-
- Type *Ty = GVA->getValueType();
- // It is possible that the type of the global is unsized, i.e. a declaration
- // of a extern struct. In this case don't presume it is in the small data
- // section. This happens e.g. when building the FreeBSD kernel.
- if (!Ty->isSized())
- return false;
-
- return isInSmallSection(
- GVA->getParent()->getDataLayout().getTypeAllocSize(Ty));
-}
-
-MCSection *RISCVELFTargetObjectFile::SelectSectionForGlobal(
- const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const {
- // Handle Small Section classification here.
- if (Kind.isBSS() && isGlobalInSmallSection(GO, TM))
- return SmallBSSSection;
- if (Kind.isData() && isGlobalInSmallSection(GO, TM))
- return SmallDataSection;
-
- // Otherwise, we work the same as ELF.
- return TargetLoweringObjectFileELF::SelectSectionForGlobal(GO, Kind, TM);
-}
-
-void RISCVELFTargetObjectFile::getModuleMetadata(Module &M) {
- SmallVector<Module::ModuleFlagEntry, 8> ModuleFlags;
- M.getModuleFlagsMetadata(ModuleFlags);
-
- for (const auto &MFE : ModuleFlags) {
- StringRef Key = MFE.Key->getString();
- if (Key == "SmallDataLimit") {
- SSThreshold = mdconst::extract<ConstantInt>(MFE.Val)->getZExtValue();
- break;
- }
- }
-}
-
-/// Return true if this constant should be placed into small data section.
-bool RISCVELFTargetObjectFile::isConstantInSmallSection(
- const DataLayout &DL, const Constant *CN) const {
- return isInSmallSection(DL.getTypeAllocSize(CN->getType()));
-}
-
-MCSection *RISCVELFTargetObjectFile::getSectionForConstant(
- const DataLayout &DL, SectionKind Kind, const Constant *C,
- unsigned &Align) const {
- if (isConstantInSmallSection(DL, C))
- return SmallDataSection;
-
- // Otherwise, we work the same as ELF.
- return TargetLoweringObjectFileELF::getSectionForConstant(DL, Kind, C, Align);
-}