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-rw-r--r--lib/CodeGen/TargetLoweringObjectFileImpl.cpp123
1 files changed, 45 insertions, 78 deletions
diff --git a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
index bd54a871ca..127b2aa324 100644
--- a/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
+++ b/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
@@ -36,7 +36,6 @@
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetLowering.h"
using namespace llvm;
using namespace dwarf;
@@ -44,18 +43,19 @@ using namespace dwarf;
// ELF
//===----------------------------------------------------------------------===//
-MCSymbol *TargetLoweringObjectFileELF::getCFIPersonalitySymbol(
- const GlobalValue *GV, Mangler &Mang, const TargetMachine &TM,
- MachineModuleInfo *MMI) const {
+MCSymbol *
+TargetLoweringObjectFileELF::getCFIPersonalitySymbol(const GlobalValue *GV,
+ Mangler &Mang,
+ MachineModuleInfo *MMI) const {
unsigned Encoding = getPersonalityEncoding();
switch (Encoding & 0x70) {
default:
report_fatal_error("We do not support this DWARF encoding yet!");
case dwarf::DW_EH_PE_absptr:
- return TM.getTargetLowering()->getSymbol(GV, Mang);
+ return getSymbol(GV, Mang);
case dwarf::DW_EH_PE_pcrel: {
return getContext().GetOrCreateSymbol(StringRef("DW.ref.") +
- TM.getTargetLowering()->getSymbol(GV, Mang)->getName());
+ getSymbol(GV, Mang)->getName());
}
}
}
@@ -89,19 +89,18 @@ void TargetLoweringObjectFileELF::emitPersonalityValue(MCStreamer &Streamer,
const MCExpr *TargetLoweringObjectFileELF::getTTypeGlobalReference(
const GlobalValue *GV, unsigned Encoding, Mangler &Mang,
- const TargetMachine &TM, MachineModuleInfo *MMI,
- MCStreamer &Streamer) const {
+ MachineModuleInfo *MMI, MCStreamer &Streamer) const {
if (Encoding & dwarf::DW_EH_PE_indirect) {
MachineModuleInfoELF &ELFMMI = MMI->getObjFileInfo<MachineModuleInfoELF>();
- MCSymbol *SSym = getSymbolWithGlobalValueBase(GV, ".DW.stub", Mang, TM);
+ MCSymbol *SSym = getSymbolWithGlobalValueBase(GV, ".DW.stub", Mang);
// Add information about the stub reference to ELFMMI so that the stub
// gets emitted by the asmprinter.
MachineModuleInfoImpl::StubValueTy &StubSym = ELFMMI.getGVStubEntry(SSym);
if (StubSym.getPointer() == 0) {
- MCSymbol *Sym = TM.getTargetLowering()->getSymbol(GV, Mang);
+ MCSymbol *Sym = getSymbol(GV, Mang);
StubSym = MachineModuleInfoImpl::StubValueTy(Sym, !GV->hasLocalLinkage());
}
@@ -110,8 +109,8 @@ const MCExpr *TargetLoweringObjectFileELF::getTTypeGlobalReference(
Encoding & ~dwarf::DW_EH_PE_indirect, Streamer);
}
- return TargetLoweringObjectFile::
- getTTypeGlobalReference(GV, Encoding, Mang, TM, MMI, Streamer);
+ return TargetLoweringObjectFile::getTTypeGlobalReference(GV, Encoding, Mang,
+ MMI, Streamer);
}
static SectionKind
@@ -196,9 +195,10 @@ getELFSectionFlags(SectionKind K) {
return Flags;
}
-const MCSection *TargetLoweringObjectFileELF::getExplicitSectionGlobal(
- const GlobalValue *GV, SectionKind Kind, Mangler &Mang,
- const TargetMachine &TM) const {
+
+const MCSection *TargetLoweringObjectFileELF::
+getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
+ Mangler &Mang, const TargetMachine &TM) const {
StringRef SectionName = GV->getSection();
// Infer section flags from the section name if we can.
@@ -248,12 +248,12 @@ SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
Prefix = getSectionPrefixForGlobal(Kind);
SmallString<128> Name(Prefix, Prefix+strlen(Prefix));
- TM.getTargetLowering()->getNameWithPrefix(Name, GV, Mang, true);
-
+ MCSymbol *Sym = getSymbol(GV, Mang);
+ Name.append(Sym->getName().begin(), Sym->getName().end());
StringRef Group = "";
unsigned Flags = getELFSectionFlags(Kind);
if (GV->isWeakForLinker()) {
- Group = Name.substr(strlen(Prefix));
+ Group = Sym->getName();
Flags |= ELF::SHF_GROUP;
}
@@ -487,9 +487,9 @@ emitModuleFlags(MCStreamer &Streamer,
Streamer.AddBlankLine();
}
-const MCSection *TargetLoweringObjectFileMachO::getExplicitSectionGlobal(
- const GlobalValue *GV, SectionKind Kind, Mangler &Mang,
- const TargetMachine &TM) const {
+const MCSection *TargetLoweringObjectFileMachO::
+getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
+ Mangler &Mang, const TargetMachine &TM) const {
// Parse the section specifier and create it if valid.
StringRef Segment, Section;
unsigned TAA = 0, StubSize = 0;
@@ -526,41 +526,6 @@ const MCSection *TargetLoweringObjectFileMachO::getExplicitSectionGlobal(
return S;
}
-bool TargetLoweringObjectFileMachO::isSectionAtomizableBySymbols(
- const MCSection &Section) const {
- const MCSectionMachO &SMO = static_cast<const MCSectionMachO&>(Section);
-
- // Sections holding 1 byte strings are atomized based on the data
- // they contain.
- // Sections holding 2 byte strings require symbols in order to be
- // atomized.
- // There is no dedicated section for 4 byte strings.
- if (SMO.getKind().isMergeable1ByteCString())
- return false;
-
- if (SMO.getSegmentName() == "__DATA" &&
- SMO.getSectionName() == "__cfstring")
- return false;
-
- switch (SMO.getType()) {
- default:
- return true;
-
- // These sections are atomized at the element boundaries without using
- // symbols.
- case MCSectionMachO::S_4BYTE_LITERALS:
- case MCSectionMachO::S_8BYTE_LITERALS:
- case MCSectionMachO::S_16BYTE_LITERALS:
- case MCSectionMachO::S_LITERAL_POINTERS:
- case MCSectionMachO::S_NON_LAZY_SYMBOL_POINTERS:
- case MCSectionMachO::S_LAZY_SYMBOL_POINTERS:
- case MCSectionMachO::S_MOD_INIT_FUNC_POINTERS:
- case MCSectionMachO::S_MOD_TERM_FUNC_POINTERS:
- case MCSectionMachO::S_INTERPOSING:
- return false;
- }
-}
-
const MCSection *TargetLoweringObjectFileMachO::
SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
Mangler &Mang, const TargetMachine &TM) const {
@@ -641,17 +606,21 @@ TargetLoweringObjectFileMachO::getSectionForConstant(SectionKind Kind) const {
return ReadOnlySection; // .const
}
-/// This hook allows targets to selectively decide not to emit the UsedDirective
-/// for some symbols in llvm.used.
+/// shouldEmitUsedDirectiveFor - This hook allows targets to selectively decide
+/// not to emit the UsedDirective for some symbols in llvm.used.
// FIXME: REMOVE this (rdar://7071300)
-bool TargetLoweringObjectFileMachO::shouldEmitUsedDirectiveFor(
- const GlobalValue *GV, Mangler &Mang, TargetMachine &TM) const {
+bool TargetLoweringObjectFileMachO::
+shouldEmitUsedDirectiveFor(const GlobalValue *GV, Mangler &Mang) const {
+ /// On Darwin, internally linked data beginning with "L" or "l" does not have
+ /// the directive emitted (this occurs in ObjC metadata).
+ if (!GV) return false;
+
// Check whether the mangled name has the "Private" or "LinkerPrivate" prefix.
if (GV->hasLocalLinkage() && !isa<Function>(GV)) {
// FIXME: ObjC metadata is currently emitted as internal symbols that have
// \1L and \0l prefixes on them. Fix them to be Private/LinkerPrivate and
// this horrible hack can go away.
- MCSymbol *Sym = TM.getTargetLowering()->getSymbol(GV, Mang);
+ MCSymbol *Sym = getSymbol(GV, Mang);
if (Sym->getName()[0] == 'L' || Sym->getName()[0] == 'l')
return false;
}
@@ -661,16 +630,14 @@ bool TargetLoweringObjectFileMachO::shouldEmitUsedDirectiveFor(
const MCExpr *TargetLoweringObjectFileMachO::getTTypeGlobalReference(
const GlobalValue *GV, unsigned Encoding, Mangler &Mang,
- const TargetMachine &TM, MachineModuleInfo *MMI,
- MCStreamer &Streamer) const {
+ MachineModuleInfo *MMI, MCStreamer &Streamer) const {
// The mach-o version of this method defaults to returning a stub reference.
if (Encoding & DW_EH_PE_indirect) {
MachineModuleInfoMachO &MachOMMI =
MMI->getObjFileInfo<MachineModuleInfoMachO>();
- MCSymbol *SSym =
- getSymbolWithGlobalValueBase(GV, "$non_lazy_ptr", Mang, TM);
+ MCSymbol *SSym = getSymbolWithGlobalValueBase(GV, "$non_lazy_ptr", Mang);
// Add information about the stub reference to MachOMMI so that the stub
// gets emitted by the asmprinter.
@@ -678,7 +645,7 @@ const MCExpr *TargetLoweringObjectFileMachO::getTTypeGlobalReference(
GV->hasHiddenVisibility() ? MachOMMI.getHiddenGVStubEntry(SSym) :
MachOMMI.getGVStubEntry(SSym);
if (StubSym.getPointer() == 0) {
- MCSymbol *Sym = TM.getTargetLowering()->getSymbol(GV, Mang);
+ MCSymbol *Sym = getSymbol(GV, Mang);
StubSym = MachineModuleInfoImpl::StubValueTy(Sym, !GV->hasLocalLinkage());
}
@@ -687,24 +654,24 @@ const MCExpr *TargetLoweringObjectFileMachO::getTTypeGlobalReference(
Encoding & ~dwarf::DW_EH_PE_indirect, Streamer);
}
- return TargetLoweringObjectFile::getTTypeGlobalReference(GV, Encoding, Mang,
- TM, MMI, Streamer);
+ return TargetLoweringObjectFile::
+ getTTypeGlobalReference(GV, Encoding, Mang, MMI, Streamer);
}
-MCSymbol *TargetLoweringObjectFileMachO::getCFIPersonalitySymbol(
- const GlobalValue *GV, Mangler &Mang, const TargetMachine &TM,
- MachineModuleInfo *MMI) const {
+MCSymbol *TargetLoweringObjectFileMachO::
+getCFIPersonalitySymbol(const GlobalValue *GV, Mangler &Mang,
+ MachineModuleInfo *MMI) const {
// The mach-o version of this method defaults to returning a stub reference.
MachineModuleInfoMachO &MachOMMI =
MMI->getObjFileInfo<MachineModuleInfoMachO>();
- MCSymbol *SSym = getSymbolWithGlobalValueBase(GV, "$non_lazy_ptr", Mang, TM);
+ MCSymbol *SSym = getSymbolWithGlobalValueBase(GV, "$non_lazy_ptr", Mang);
// Add information about the stub reference to MachOMMI so that the stub
// gets emitted by the asmprinter.
MachineModuleInfoImpl::StubValueTy &StubSym = MachOMMI.getGVStubEntry(SSym);
if (StubSym.getPointer() == 0) {
- MCSymbol *Sym = TM.getTargetLowering()->getSymbol(GV, Mang);
+ MCSymbol *Sym = getSymbol(GV, Mang);
StubSym = MachineModuleInfoImpl::StubValueTy(Sym, !GV->hasLocalLinkage());
}
@@ -750,9 +717,9 @@ getCOFFSectionFlags(SectionKind K) {
return Flags;
}
-const MCSection *TargetLoweringObjectFileCOFF::getExplicitSectionGlobal(
- const GlobalValue *GV, SectionKind Kind, Mangler &Mang,
- const TargetMachine &TM) const {
+const MCSection *TargetLoweringObjectFileCOFF::
+getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
+ Mangler &Mang, const TargetMachine &TM) const {
int Selection = 0;
unsigned Characteristics = getCOFFSectionFlags(Kind);
StringRef Name = GV->getSection();
@@ -760,7 +727,7 @@ const MCSection *TargetLoweringObjectFileCOFF::getExplicitSectionGlobal(
if (GV->isWeakForLinker()) {
Selection = COFF::IMAGE_COMDAT_SELECT_ANY;
Characteristics |= COFF::IMAGE_SCN_LNK_COMDAT;
- MCSymbol *Sym = TM.getTargetLowering()->getSymbol(GV, Mang);
+ MCSymbol *Sym = getSymbol(GV, Mang);
COMDATSymName = Sym->getName();
}
return getContext().getCOFFSection(Name,
@@ -794,7 +761,7 @@ SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
unsigned Characteristics = getCOFFSectionFlags(Kind);
Characteristics |= COFF::IMAGE_SCN_LNK_COMDAT;
- MCSymbol *Sym = TM.getTargetLowering()->getSymbol(GV, Mang);
+ MCSymbol *Sym = getSymbol(GV, Mang);
return getContext().getCOFFSection(Name, Characteristics,
Kind, Sym->getName(),
COFF::IMAGE_COMDAT_SELECT_ANY);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-23 07:38:58 +0000