aboutsummaryrefslogtreecommitdiff
path: root/llvm/lib/MC/MCContext.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'llvm/lib/MC/MCContext.cpp')
-rw-r--r--llvm/lib/MC/MCContext.cpp90
1 files changed, 82 insertions, 8 deletions
diff --git a/llvm/lib/MC/MCContext.cpp b/llvm/lib/MC/MCContext.cpp
index eafcee1e0607..4be84ca7feb5 100644
--- a/llvm/lib/MC/MCContext.cpp
+++ b/llvm/lib/MC/MCContext.cpp
@@ -7,6 +7,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCContext.h"
+#include "llvm/ADT/DenseMapInfo.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
@@ -15,21 +16,25 @@
#include "llvm/ADT/Twine.h"
#include "llvm/BinaryFormat/COFF.h"
#include "llvm/BinaryFormat/ELF.h"
+#include "llvm/BinaryFormat/Wasm.h"
#include "llvm/BinaryFormat/XCOFF.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCCodeView.h"
#include "llvm/MC/MCDwarf.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCFragment.h"
+#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCLabel.h"
-#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCSectionCOFF.h"
+#include "llvm/MC/MCSectionDXContainer.h"
#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSectionGOFF.h"
#include "llvm/MC/MCSectionMachO.h"
+#include "llvm/MC/MCSectionSPIRV.h"
#include "llvm/MC/MCSectionWasm.h"
#include "llvm/MC/MCSectionXCOFF.h"
#include "llvm/MC/MCStreamer.h"
+#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCSymbolCOFF.h"
#include "llvm/MC/MCSymbolELF.h"
@@ -37,13 +42,14 @@
#include "llvm/MC/MCSymbolMachO.h"
#include "llvm/MC/MCSymbolWasm.h"
#include "llvm/MC/MCSymbolXCOFF.h"
+#include "llvm/MC/MCTargetOptions.h"
#include "llvm/MC/SectionKind.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
-#include "llvm/Support/Signals.h"
+#include "llvm/Support/SMLoc.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/raw_ostream.h"
#include <cassert>
@@ -103,6 +109,12 @@ MCContext::MCContext(const Triple &TheTriple, const MCAsmInfo *mai,
case Triple::GOFF:
Env = IsGOFF;
break;
+ case Triple::DXContainer:
+ Env = IsDXContainer;
+ break;
+ case Triple::SPIRV:
+ Env = IsSPIRV;
+ break;
case Triple::UnknownObjectFormat:
report_fatal_error("Cannot initialize MC for unknown object file format.");
break;
@@ -134,11 +146,14 @@ void MCContext::reset() {
// Call the destructors so the fragments are freed
COFFAllocator.DestroyAll();
+ DXCAllocator.DestroyAll();
ELFAllocator.DestroyAll();
GOFFAllocator.DestroyAll();
MachOAllocator.DestroyAll();
+ WasmAllocator.DestroyAll();
XCOFFAllocator.DestroyAll();
MCInstAllocator.DestroyAll();
+ SPIRVAllocator.DestroyAll();
MCSubtargetAllocator.DestroyAll();
InlineAsmUsedLabelNames.clear();
@@ -163,6 +178,7 @@ void MCContext::reset() {
COFFUniquingMap.clear();
WasmUniquingMap.clear();
XCOFFUniquingMap.clear();
+ DXCUniquingMap.clear();
ELFEntrySizeMap.clear();
ELFSeenGenericMergeableSections.clear();
@@ -243,6 +259,11 @@ MCSymbol *MCContext::createSymbolImpl(const StringMapEntry<bool> *Name,
return new (Name, *this) MCSymbolWasm(Name, IsTemporary);
case MCContext::IsXCOFF:
return createXCOFFSymbolImpl(Name, IsTemporary);
+ case MCContext::IsDXContainer:
+ break;
+ case MCContext::IsSPIRV:
+ return new (Name, *this)
+ MCSymbol(MCSymbol::SymbolKindUnset, Name, IsTemporary);
}
return new (Name, *this) MCSymbol(MCSymbol::SymbolKindUnset, Name,
IsTemporary);
@@ -616,11 +637,14 @@ Optional<unsigned> MCContext::getELFUniqueIDForEntsize(StringRef SectionName,
return (I != ELFEntrySizeMap.end()) ? Optional<unsigned>(I->second) : None;
}
-MCSectionGOFF *MCContext::getGOFFSection(StringRef Section, SectionKind Kind) {
+MCSectionGOFF *MCContext::getGOFFSection(StringRef Section, SectionKind Kind,
+ MCSection *Parent,
+ const MCExpr *SubsectionId) {
// Do the lookup. If we don't have a hit, return a new section.
auto &GOFFSection = GOFFUniquingMap[Section.str()];
if (!GOFFSection)
- GOFFSection = new (GOFFAllocator.Allocate()) MCSectionGOFF(Section, Kind);
+ GOFFSection = new (GOFFAllocator.Allocate())
+ MCSectionGOFF(Section, Kind, Parent, SubsectionId);
return GOFFSection;
}
@@ -732,13 +756,19 @@ MCSectionWasm *MCContext::getWasmSection(const Twine &Section, SectionKind Kind,
return Result;
}
+bool MCContext::hasXCOFFSection(StringRef Section,
+ XCOFF::CsectProperties CsectProp) const {
+ return XCOFFUniquingMap.count(
+ XCOFFSectionKey(Section.str(), CsectProp.MappingClass)) != 0;
+}
+
MCSectionXCOFF *MCContext::getXCOFFSection(
StringRef Section, SectionKind Kind,
Optional<XCOFF::CsectProperties> CsectProp, bool MultiSymbolsAllowed,
const char *BeginSymName,
Optional<XCOFF::DwarfSectionSubtypeFlags> DwarfSectionSubtypeFlags) {
- bool IsDwarfSec = DwarfSectionSubtypeFlags.hasValue();
- assert((IsDwarfSec != CsectProp.hasValue()) && "Invalid XCOFF section!");
+ bool IsDwarfSec = DwarfSectionSubtypeFlags.has_value();
+ assert((IsDwarfSec != CsectProp.has_value()) && "Invalid XCOFF section!");
// Do the lookup. If we have a hit, return it.
auto IterBool = XCOFFUniquingMap.insert(std::make_pair(
@@ -796,6 +826,44 @@ MCSectionXCOFF *MCContext::getXCOFFSection(
return Result;
}
+MCSectionSPIRV *MCContext::getSPIRVSection() {
+ MCSymbol *Begin = nullptr;
+ MCSectionSPIRV *Result = new (SPIRVAllocator.Allocate())
+ MCSectionSPIRV(SectionKind::getText(), Begin);
+
+ auto *F = new MCDataFragment();
+ Result->getFragmentList().insert(Result->begin(), F);
+ F->setParent(Result);
+
+ if (Begin)
+ Begin->setFragment(F);
+
+ return Result;
+}
+
+MCSectionDXContainer *MCContext::getDXContainerSection(StringRef Section,
+ SectionKind K) {
+ // Do the lookup, if we have a hit, return it.
+ auto ItInsertedPair = DXCUniquingMap.try_emplace(Section);
+ if (!ItInsertedPair.second)
+ return ItInsertedPair.first->second;
+
+ auto MapIt = ItInsertedPair.first;
+ // Grab the name from the StringMap. Since the Section is going to keep a
+ // copy of this StringRef we need to make sure the underlying string stays
+ // alive as long as we need it.
+ StringRef Name = MapIt->first();
+ MapIt->second =
+ new (DXCAllocator.Allocate()) MCSectionDXContainer(Name, K, nullptr);
+
+ // The first fragment will store the header
+ auto *F = new MCDataFragment();
+ MapIt->second->getFragmentList().insert(MapIt->second->begin(), F);
+ F->setParent(MapIt->second);
+
+ return MapIt->second;
+}
+
MCSubtargetInfo &MCContext::getSubtargetCopy(const MCSubtargetInfo &STI) {
return *new (MCSubtargetAllocator.Allocate()) MCSubtargetInfo(STI);
}
@@ -835,6 +903,12 @@ void MCContext::RemapDebugPaths() {
// Dwarf Management
//===----------------------------------------------------------------------===//
+EmitDwarfUnwindType MCContext::emitDwarfUnwindInfo() const {
+ if (!TargetOptions)
+ return EmitDwarfUnwindType::Default;
+ return TargetOptions->EmitDwarfUnwind;
+}
+
void MCContext::setGenDwarfRootFile(StringRef InputFileName, StringRef Buffer) {
// MCDwarf needs the root file as well as the compilation directory.
// If we find a '.file 0' directive that will supersede these values.
@@ -906,9 +980,9 @@ void MCContext::finalizeDwarfSections(MCStreamer &MCOS) {
}
CodeViewContext &MCContext::getCVContext() {
- if (!CVContext.get())
+ if (!CVContext)
CVContext.reset(new CodeViewContext);
- return *CVContext.get();
+ return *CVContext;
}
//===----------------------------------------------------------------------===//
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-01 06:41:22 +0000