aboutsummaryrefslogtreecommitdiffstats
path: root/lib/MC
diff options
context:
space:
mode:
Diffstat (limited to 'lib/MC')
-rw-r--r--lib/MC/CMakeLists.txt1
-rw-r--r--lib/MC/MCAssembler.cpp5
-rw-r--r--lib/MC/MCDwarf.cpp22
-rw-r--r--lib/MC/MCObjectFileInfo.cpp6
-rw-r--r--lib/MC/MCObjectWriter.cpp34
-rw-r--r--lib/MC/MCParser/AsmParser.cpp87
-rw-r--r--lib/MC/MCParser/DarwinAsmParser.cpp41
-rw-r--r--lib/MC/MCRegisterInfo.cpp71
-rw-r--r--lib/MC/MCStreamer.cpp5
-rw-r--r--lib/MC/MCWin64EH.cpp6
10 files changed, 181 insertions, 97 deletions
diff --git a/lib/MC/CMakeLists.txt b/lib/MC/CMakeLists.txt
index f11e686..99bff96 100644
--- a/lib/MC/CMakeLists.txt
+++ b/lib/MC/CMakeLists.txt
@@ -28,6 +28,7 @@ add_llvm_library(LLVMMC
MCObjectStreamer.cpp
MCObjectWriter.cpp
MCPureStreamer.cpp
+ MCRegisterInfo.cpp
MCSection.cpp
MCSectionCOFF.cpp
MCSectionELF.cpp
diff --git a/lib/MC/MCAssembler.cpp b/lib/MC/MCAssembler.cpp
index 0aa0c98..b7d2c28 100644
--- a/lib/MC/MCAssembler.cpp
+++ b/lib/MC/MCAssembler.cpp
@@ -27,6 +27,7 @@
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/TargetRegistry.h"
+#include "llvm/Support/LEB128.h"
using namespace llvm;
@@ -719,9 +720,9 @@ bool MCAssembler::relaxLEB(MCAsmLayout &Layout, MCLEBFragment &LF) {
Data.clear();
raw_svector_ostream OSE(Data);
if (LF.isSigned())
- MCObjectWriter::EncodeSLEB128(Value, OSE);
+ encodeSLEB128(Value, OSE);
else
- MCObjectWriter::EncodeULEB128(Value, OSE);
+ encodeULEB128(Value, OSE);
OSE.flush();
return OldSize != LF.getContents().size();
}
diff --git a/lib/MC/MCDwarf.cpp b/lib/MC/MCDwarf.cpp
index 75eaf80..4c63e43 100644
--- a/lib/MC/MCDwarf.cpp
+++ b/lib/MC/MCDwarf.cpp
@@ -19,6 +19,7 @@
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/LEB128.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/ADT/Hashing.h"
@@ -361,7 +362,7 @@ void MCDwarfLineAddr::Encode(int64_t LineDelta, uint64_t AddrDelta,
OS << char(dwarf::DW_LNS_const_add_pc);
else {
OS << char(dwarf::DW_LNS_advance_pc);
- MCObjectWriter::EncodeULEB128(AddrDelta, OS);
+ encodeULEB128(AddrDelta, OS);
}
OS << char(dwarf::DW_LNS_extended_op);
OS << char(1);
@@ -376,7 +377,7 @@ void MCDwarfLineAddr::Encode(int64_t LineDelta, uint64_t AddrDelta,
// it with DW_LNS_advance_line.
if (Temp >= DWARF2_LINE_RANGE) {
OS << char(dwarf::DW_LNS_advance_line);
- MCObjectWriter::EncodeSLEB128(LineDelta, OS);
+ encodeSLEB128(LineDelta, OS);
LineDelta = 0;
Temp = 0 - DWARF2_LINE_BASE;
@@ -412,7 +413,7 @@ void MCDwarfLineAddr::Encode(int64_t LineDelta, uint64_t AddrDelta,
// Otherwise use DW_LNS_advance_pc.
OS << char(dwarf::DW_LNS_advance_pc);
- MCObjectWriter::EncodeULEB128(AddrDelta, OS);
+ encodeULEB128(AddrDelta, OS);
if (NeedCopy)
OS << char(dwarf::DW_LNS_copy);
@@ -1293,20 +1294,17 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCStreamer &streamer,
streamer.EmitSymbolValue(&cieStart, 4);
}
- unsigned fdeEncoding = MOFI->getFDEEncoding(UsingCFI);
- unsigned size = getSizeForEncoding(streamer, fdeEncoding);
-
// PC Begin
- unsigned PCBeginEncoding = IsEH ? fdeEncoding :
- (unsigned)dwarf::DW_EH_PE_absptr;
- unsigned PCBeginSize = getSizeForEncoding(streamer, PCBeginEncoding);
- EmitSymbol(streamer, *frame.Begin, PCBeginEncoding, "FDE initial location");
+ unsigned PCEncoding = IsEH ? MOFI->getFDEEncoding(UsingCFI)
+ : (unsigned)dwarf::DW_EH_PE_absptr;
+ unsigned PCSize = getSizeForEncoding(streamer, PCEncoding);
+ EmitSymbol(streamer, *frame.Begin, PCEncoding, "FDE initial location");
// PC Range
const MCExpr *Range = MakeStartMinusEndExpr(streamer, *frame.Begin,
*frame.End, 0);
if (verboseAsm) streamer.AddComment("FDE address range");
- streamer.EmitAbsValue(Range, size);
+ streamer.EmitAbsValue(Range, PCSize);
if (IsEH) {
// Augmentation Data Length
@@ -1329,7 +1327,7 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCStreamer &streamer,
EmitCFIInstructions(streamer, frame.Instructions, frame.Begin);
// Padding
- streamer.EmitValueToAlignment(PCBeginSize);
+ streamer.EmitValueToAlignment(PCSize);
return fdeEnd;
}
diff --git a/lib/MC/MCObjectFileInfo.cpp b/lib/MC/MCObjectFileInfo.cpp
index 4e6a1b9..29b4a94 100644
--- a/lib/MC/MCObjectFileInfo.cpp
+++ b/lib/MC/MCObjectFileInfo.cpp
@@ -507,15 +507,13 @@ void MCObjectFileInfo::InitCOFFMCObjectFileInfo(Triple T) {
PDataSection =
Ctx->getCOFFSection(".pdata",
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
- COFF::IMAGE_SCN_MEM_READ |
- COFF::IMAGE_SCN_MEM_WRITE,
+ COFF::IMAGE_SCN_MEM_READ,
SectionKind::getDataRel());
XDataSection =
Ctx->getCOFFSection(".xdata",
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
- COFF::IMAGE_SCN_MEM_READ |
- COFF::IMAGE_SCN_MEM_WRITE,
+ COFF::IMAGE_SCN_MEM_READ,
SectionKind::getDataRel());
TLSDataSection =
Ctx->getCOFFSection(".tls$",
diff --git a/lib/MC/MCObjectWriter.cpp b/lib/MC/MCObjectWriter.cpp
index 030f247..94d7cd6 100644
--- a/lib/MC/MCObjectWriter.cpp
+++ b/lib/MC/MCObjectWriter.cpp
@@ -17,40 +17,6 @@ using namespace llvm;
MCObjectWriter::~MCObjectWriter() {
}
-/// Utility function to encode a SLEB128 value.
-void MCObjectWriter::EncodeSLEB128(int64_t Value, raw_ostream &OS) {
- bool More;
- do {
- uint8_t Byte = Value & 0x7f;
- // NOTE: this assumes that this signed shift is an arithmetic right shift.
- Value >>= 7;
- More = !((((Value == 0 ) && ((Byte & 0x40) == 0)) ||
- ((Value == -1) && ((Byte & 0x40) != 0))));
- if (More)
- Byte |= 0x80; // Mark this byte that that more bytes will follow.
- OS << char(Byte);
- } while (More);
-}
-
-/// Utility function to encode a ULEB128 value.
-void MCObjectWriter::EncodeULEB128(uint64_t Value, raw_ostream &OS,
- unsigned Padding) {
- do {
- uint8_t Byte = Value & 0x7f;
- Value >>= 7;
- if (Value != 0 || Padding != 0)
- Byte |= 0x80; // Mark this byte that that more bytes will follow.
- OS << char(Byte);
- } while (Value != 0);
-
- // Pad with 0x80 and emit a null byte at the end.
- if (Padding != 0) {
- for (; Padding != 1; --Padding)
- OS << '\x80';
- OS << '\x00';
- }
-}
-
bool
MCObjectWriter::IsSymbolRefDifferenceFullyResolved(const MCAssembler &Asm,
const MCSymbolRefExpr *A,
diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index 2daad0a..240c10b 100644
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -46,14 +46,17 @@ namespace {
/// \brief Helper class for tracking macro definitions.
typedef std::vector<AsmToken> MacroArgument;
+typedef std::vector<MacroArgument> MacroArguments;
+typedef StringRef MacroParameter;
+typedef std::vector<MacroParameter> MacroParameters;
struct Macro {
StringRef Name;
StringRef Body;
- std::vector<StringRef> Parameters;
+ MacroParameters Parameters;
public:
- Macro(StringRef N, StringRef B, const std::vector<StringRef> &P) :
+ Macro(StringRef N, StringRef B, const MacroParameters &P) :
Name(N), Body(B), Parameters(P) {}
};
@@ -181,8 +184,8 @@ private:
bool HandleMacroEntry(StringRef Name, SMLoc NameLoc, const Macro *M);
bool expandMacro(raw_svector_ostream &OS, StringRef Body,
- const std::vector<StringRef> &Parameters,
- const std::vector<MacroArgument> &A,
+ const MacroParameters &Parameters,
+ const MacroArguments &A,
const SMLoc &L);
void HandleMacroExit();
@@ -207,7 +210,7 @@ private:
void EatToEndOfStatement();
bool ParseMacroArgument(MacroArgument &MA);
- bool ParseMacroArguments(const Macro *M, std::vector<MacroArgument> &A);
+ bool ParseMacroArguments(const Macro *M, MacroArguments &A);
/// \brief Parse up to the end of statement and a return the contents from the
/// current token until the end of the statement; the current token on exit
@@ -1451,9 +1454,17 @@ void AsmParser::DiagHandler(const SMDiagnostic &Diag, void *Context) {
NewDiag.print(0, OS);
}
+// FIXME: This is mostly duplicated from the function in AsmLexer.cpp. The
+// difference being that that function accepts '@' as part of identifiers and
+// we can't do that. AsmLexer.cpp should probably be changed to handle
+// '@' as a special case when needed.
+static bool isIdentifierChar(char c) {
+ return isalnum(c) || c == '_' || c == '$' || c == '.';
+}
+
bool AsmParser::expandMacro(raw_svector_ostream &OS, StringRef Body,
- const std::vector<StringRef> &Parameters,
- const std::vector<MacroArgument> &A,
+ const MacroParameters &Parameters,
+ const MacroArguments &A,
const SMLoc &L) {
unsigned NParameters = Parameters.size();
if (NParameters != 0 && NParameters != A.size())
@@ -1515,7 +1526,7 @@ bool AsmParser::expandMacro(raw_svector_ostream &OS, StringRef Body,
Pos += 2;
} else {
unsigned I = Pos + 1;
- while (isalnum(Body[I]) && I + 1 != End)
+ while (isIdentifierChar(Body[I]) && I + 1 != End)
++I;
const char *Begin = Body.data() + Pos +1;
@@ -1555,8 +1566,6 @@ bool AsmParser::ParseMacroArgument(MacroArgument &MA) {
unsigned ParenLevel = 0;
for (;;) {
- SMLoc LastTokenLoc;
-
if (Lexer.is(AsmToken::Eof) || Lexer.is(AsmToken::Equal))
return TokError("unexpected token in macro instantiation");
@@ -1578,13 +1587,12 @@ bool AsmParser::ParseMacroArgument(MacroArgument &MA) {
Lex();
}
if (ParenLevel != 0)
- return TokError("unbalanced parenthesises in macro argument");
+ return TokError("unbalanced parentheses in macro argument");
return false;
}
// Parse the macro instantiation arguments.
-bool AsmParser::ParseMacroArguments(const Macro *M,
- std::vector<MacroArgument> &A) {
+bool AsmParser::ParseMacroArguments(const Macro *M, MacroArguments &A) {
const unsigned NParameters = M ? M->Parameters.size() : 0;
// Parse two kinds of macro invocations:
@@ -1597,8 +1605,8 @@ bool AsmParser::ParseMacroArguments(const Macro *M,
if (ParseMacroArgument(MA))
return true;
- if (!MA.empty())
- A.push_back(MA);
+ A.push_back(MA);
+
if (Lexer.is(AsmToken::EndOfStatement))
return false;
@@ -1615,17 +1623,23 @@ bool AsmParser::HandleMacroEntry(StringRef Name, SMLoc NameLoc,
if (ActiveMacros.size() == 20)
return TokError("macros cannot be nested more than 20 levels deep");
- std::vector<MacroArgument> MacroArguments;
- if (ParseMacroArguments(M, MacroArguments))
+ MacroArguments A;
+ if (ParseMacroArguments(M, A))
return true;
+ // Remove any trailing empty arguments. Do this after-the-fact as we have
+ // to keep empty arguments in the middle of the list or positionality
+ // gets off. e.g., "foo 1, , 2" vs. "foo 1, 2,"
+ while (!A.empty() && A.back().empty())
+ A.pop_back();
+
// Macro instantiation is lexical, unfortunately. We construct a new buffer
// to hold the macro body with substitutions.
SmallString<256> Buf;
StringRef Body = M->Body;
raw_svector_ostream OS(Buf);
- if (expandMacro(OS, Body, M->Parameters, MacroArguments, getTok().getLoc()))
+ if (expandMacro(OS, Body, M->Parameters, A, getTok().getLoc()))
return true;
// We include the .endmacro in the buffer as our queue to exit the macro
@@ -3065,14 +3079,14 @@ bool GenericAsmParser::ParseDirectiveMacro(StringRef Directive,
SMLoc DirectiveLoc) {
StringRef Name;
if (getParser().ParseIdentifier(Name))
- return TokError("expected identifier in directive");
+ return TokError("expected identifier in '.macro' directive");
- std::vector<StringRef> Parameters;
+ MacroParameters Parameters;
if (getLexer().isNot(AsmToken::EndOfStatement)) {
- for(;;) {
- StringRef Parameter;
+ for (;;) {
+ MacroParameter Parameter;
if (getParser().ParseIdentifier(Parameter))
- return TokError("expected identifier in directive");
+ return TokError("expected identifier in '.macro' directive");
Parameters.push_back(Parameter);
if (getLexer().isNot(AsmToken::Comma))
@@ -3126,7 +3140,7 @@ bool GenericAsmParser::ParseDirectiveMacro(StringRef Directive,
/// ::= .endm
/// ::= .endmacro
bool GenericAsmParser::ParseDirectiveEndMacro(StringRef Directive,
- SMLoc DirectiveLoc) {
+ SMLoc DirectiveLoc) {
if (getLexer().isNot(AsmToken::EndOfStatement))
return TokError("unexpected token in '" + Directive + "' directive");
@@ -3224,7 +3238,7 @@ Macro *AsmParser::ParseMacroLikeBody(SMLoc DirectiveLoc) {
// We Are Anonymous.
StringRef Name;
- std::vector<StringRef> Parameters;
+ MacroParameters Parameters;
return new Macro(Name, Body, Parameters);
}
@@ -3270,8 +3284,8 @@ bool AsmParser::ParseDirectiveRept(SMLoc DirectiveLoc) {
// Macro instantiation is lexical, unfortunately. We construct a new buffer
// to hold the macro body with substitutions.
SmallString<256> Buf;
- std::vector<StringRef> Parameters;
- const std::vector<MacroArgument> A;
+ MacroParameters Parameters;
+ MacroArguments A;
raw_svector_ostream OS(Buf);
while (Count--) {
if (expandMacro(OS, M->Body, Parameters, A, getTok().getLoc()))
@@ -3285,8 +3299,8 @@ bool AsmParser::ParseDirectiveRept(SMLoc DirectiveLoc) {
/// ParseDirectiveIrp
/// ::= .irp symbol,values
bool AsmParser::ParseDirectiveIrp(SMLoc DirectiveLoc) {
- std::vector<StringRef> Parameters;
- StringRef Parameter;
+ MacroParameters Parameters;
+ MacroParameter Parameter;
if (ParseIdentifier(Parameter))
return TokError("expected identifier in '.irp' directive");
@@ -3298,7 +3312,7 @@ bool AsmParser::ParseDirectiveIrp(SMLoc DirectiveLoc) {
Lex();
- std::vector<MacroArgument> A;
+ MacroArguments A;
if (ParseMacroArguments(0, A))
return true;
@@ -3315,9 +3329,8 @@ bool AsmParser::ParseDirectiveIrp(SMLoc DirectiveLoc) {
SmallString<256> Buf;
raw_svector_ostream OS(Buf);
- for (std::vector<MacroArgument>::iterator i = A.begin(), e = A.end(); i != e;
- ++i) {
- std::vector<MacroArgument> Args;
+ for (MacroArguments::iterator i = A.begin(), e = A.end(); i != e; ++i) {
+ MacroArguments Args;
Args.push_back(*i);
if (expandMacro(OS, M->Body, Parameters, Args, getTok().getLoc()))
@@ -3332,8 +3345,8 @@ bool AsmParser::ParseDirectiveIrp(SMLoc DirectiveLoc) {
/// ParseDirectiveIrpc
/// ::= .irpc symbol,values
bool AsmParser::ParseDirectiveIrpc(SMLoc DirectiveLoc) {
- std::vector<StringRef> Parameters;
- StringRef Parameter;
+ MacroParameters Parameters;
+ MacroParameter Parameter;
if (ParseIdentifier(Parameter))
return TokError("expected identifier in '.irpc' directive");
@@ -3345,7 +3358,7 @@ bool AsmParser::ParseDirectiveIrpc(SMLoc DirectiveLoc) {
Lex();
- std::vector<MacroArgument> A;
+ MacroArguments A;
if (ParseMacroArguments(0, A))
return true;
@@ -3371,7 +3384,7 @@ bool AsmParser::ParseDirectiveIrpc(SMLoc DirectiveLoc) {
MacroArgument Arg;
Arg.push_back(AsmToken(AsmToken::Identifier, Values.slice(I, I+1)));
- std::vector<MacroArgument> Args;
+ MacroArguments Args;
Args.push_back(Arg);
if (expandMacro(OS, M->Body, Parameters, Args, getTok().getLoc()))
diff --git a/lib/MC/MCParser/DarwinAsmParser.cpp b/lib/MC/MCParser/DarwinAsmParser.cpp
index 5662fea..18033d0 100644
--- a/lib/MC/MCParser/DarwinAsmParser.cpp
+++ b/lib/MC/MCParser/DarwinAsmParser.cpp
@@ -50,6 +50,9 @@ public:
AddDirectiveHandler<&DarwinAsmParser::ParseDirectiveDumpOrLoad>(".dump");
AddDirectiveHandler<&DarwinAsmParser::ParseDirectiveDumpOrLoad>(".load");
AddDirectiveHandler<&DarwinAsmParser::ParseDirectiveSection>(".section");
+ AddDirectiveHandler<&DarwinAsmParser::ParseDirectivePushSection>(".pushsection");
+ AddDirectiveHandler<&DarwinAsmParser::ParseDirectivePopSection>(".popsection");
+ AddDirectiveHandler<&DarwinAsmParser::ParseDirectivePrevious>(".previous");
AddDirectiveHandler<&DarwinAsmParser::ParseDirectiveSecureLogUnique>(
".secure_log_unique");
AddDirectiveHandler<&DarwinAsmParser::ParseDirectiveSecureLogReset>(
@@ -112,6 +115,9 @@ public:
bool ParseDirectiveDumpOrLoad(StringRef, SMLoc);
bool ParseDirectiveLsym(StringRef, SMLoc);
bool ParseDirectiveSection(StringRef, SMLoc);
+ bool ParseDirectivePushSection(StringRef, SMLoc);
+ bool ParseDirectivePopSection(StringRef, SMLoc);
+ bool ParseDirectivePrevious(StringRef, SMLoc);
bool ParseDirectiveSecureLogReset(StringRef, SMLoc);
bool ParseDirectiveSecureLogUnique(StringRef, SMLoc);
bool ParseDirectiveSubsectionsViaSymbols(StringRef, SMLoc);
@@ -297,7 +303,7 @@ public:
};
-}
+} // end anonymous namespace
bool DarwinAsmParser::ParseSectionSwitch(const char *Segment,
const char *Section,
@@ -457,6 +463,37 @@ bool DarwinAsmParser::ParseDirectiveSection(StringRef, SMLoc) {
return false;
}
+/// ParseDirectivePushSection:
+/// ::= .pushsection identifier (',' identifier)*
+bool DarwinAsmParser::ParseDirectivePushSection(StringRef S, SMLoc Loc) {
+ getStreamer().PushSection();
+
+ if (ParseDirectiveSection(S, Loc)) {
+ getStreamer().PopSection();
+ return true;
+ }
+
+ return false;
+}
+
+/// ParseDirectivePopSection:
+/// ::= .popsection
+bool DarwinAsmParser::ParseDirectivePopSection(StringRef, SMLoc) {
+ if (!getStreamer().PopSection())
+ return TokError(".popsection without corresponding .pushsection");
+ return false;
+}
+
+/// ParseDirectivePrevious:
+/// ::= .previous
+bool DarwinAsmParser::ParseDirectivePrevious(StringRef DirName, SMLoc) {
+ const MCSection *PreviousSection = getStreamer().getPreviousSection();
+ if (PreviousSection == NULL)
+ return TokError(".previous without corresponding .section");
+ getStreamer().SwitchSection(PreviousSection);
+ return false;
+}
+
/// ParseDirectiveSecureLogUnique
/// ::= .secure_log_unique ... message ...
bool DarwinAsmParser::ParseDirectiveSecureLogUnique(StringRef, SMLoc IDLoc) {
@@ -707,4 +744,4 @@ MCAsmParserExtension *createDarwinAsmParser() {
return new DarwinAsmParser;
}
-}
+} // end llvm namespace
diff --git a/lib/MC/MCRegisterInfo.cpp b/lib/MC/MCRegisterInfo.cpp
new file mode 100644
index 0000000..4d1aff3
--- /dev/null
+++ b/lib/MC/MCRegisterInfo.cpp
@@ -0,0 +1,71 @@
+//=== MC/MCRegisterInfo.cpp - Target Register Description -------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements MCRegisterInfo functions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCRegisterInfo.h"
+
+using namespace llvm;
+
+unsigned MCRegisterInfo::getMatchingSuperReg(unsigned Reg, unsigned SubIdx,
+ const MCRegisterClass *RC) const {
+ for (MCSuperRegIterator Supers(Reg, this); Supers.isValid(); ++Supers)
+ if (RC->contains(*Supers) && Reg == getSubReg(*Supers, SubIdx))
+ return *Supers;
+ return 0;
+}
+
+unsigned MCRegisterInfo::getSubReg(unsigned Reg, unsigned Idx) const {
+ // Get a pointer to the corresponding SubRegIndices list. This list has the
+ // name of each sub-register in the same order as MCSubRegIterator.
+ const uint16_t *SRI = SubRegIndices + get(Reg).SubRegIndices;
+ for (MCSubRegIterator Subs(Reg, this); Subs.isValid(); ++Subs, ++SRI)
+ if (*SRI == Idx)
+ return *Subs;
+ return 0;
+}
+
+unsigned MCRegisterInfo::getSubRegIndex(unsigned Reg, unsigned SubReg) const {
+ // Get a pointer to the corresponding SubRegIndices list. This list has the
+ // name of each sub-register in the same order as MCSubRegIterator.
+ const uint16_t *SRI = SubRegIndices + get(Reg).SubRegIndices;
+ for (MCSubRegIterator Subs(Reg, this); Subs.isValid(); ++Subs, ++SRI)
+ if (*Subs == SubReg)
+ return *SRI;
+ return 0;
+}
+
+int MCRegisterInfo::getDwarfRegNum(unsigned RegNum, bool isEH) const {
+ const DwarfLLVMRegPair *M = isEH ? EHL2DwarfRegs : L2DwarfRegs;
+ unsigned Size = isEH ? EHL2DwarfRegsSize : L2DwarfRegsSize;
+
+ DwarfLLVMRegPair Key = { RegNum, 0 };
+ const DwarfLLVMRegPair *I = std::lower_bound(M, M+Size, Key);
+ if (I == M+Size || I->FromReg != RegNum)
+ return -1;
+ return I->ToReg;
+}
+
+int MCRegisterInfo::getLLVMRegNum(unsigned RegNum, bool isEH) const {
+ const DwarfLLVMRegPair *M = isEH ? EHDwarf2LRegs : Dwarf2LRegs;
+ unsigned Size = isEH ? EHDwarf2LRegsSize : Dwarf2LRegsSize;
+
+ DwarfLLVMRegPair Key = { RegNum, 0 };
+ const DwarfLLVMRegPair *I = std::lower_bound(M, M+Size, Key);
+ assert(I != M+Size && I->FromReg == RegNum && "Invalid RegNum");
+ return I->ToReg;
+}
+
+int MCRegisterInfo::getSEHRegNum(unsigned RegNum) const {
+ const DenseMap<unsigned, int>::const_iterator I = L2SEHRegs.find(RegNum);
+ if (I == L2SEHRegs.end()) return (int)RegNum;
+ return I->second;
+}
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp
index e363f28..0bac24d 100644
--- a/lib/MC/MCStreamer.cpp
+++ b/lib/MC/MCStreamer.cpp
@@ -15,6 +15,7 @@
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/LEB128.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/Twine.h"
#include <cstdlib>
@@ -94,7 +95,7 @@ void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace,
unsigned Padding) {
SmallString<128> Tmp;
raw_svector_ostream OSE(Tmp);
- MCObjectWriter::EncodeULEB128(Value, OSE, Padding);
+ encodeULEB128(Value, OSE, Padding);
EmitBytes(OSE.str(), AddrSpace);
}
@@ -103,7 +104,7 @@ void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace,
void MCStreamer::EmitSLEB128IntValue(int64_t Value, unsigned AddrSpace) {
SmallString<128> Tmp;
raw_svector_ostream OSE(Tmp);
- MCObjectWriter::EncodeSLEB128(Value, OSE);
+ encodeSLEB128(Value, OSE);
EmitBytes(OSE.str(), AddrSpace);
}
diff --git a/lib/MC/MCWin64EH.cpp b/lib/MC/MCWin64EH.cpp
index 79e66fc..c05b4b1 100644
--- a/lib/MC/MCWin64EH.cpp
+++ b/lib/MC/MCWin64EH.cpp
@@ -228,8 +228,7 @@ static const MCSection *getWin64EHTableSection(StringRef suffix,
return context.getCOFFSection((".xdata"+suffix).str(),
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
- COFF::IMAGE_SCN_MEM_READ |
- COFF::IMAGE_SCN_MEM_WRITE,
+ COFF::IMAGE_SCN_MEM_READ,
SectionKind::getDataRel());
}
@@ -239,8 +238,7 @@ static const MCSection *getWin64EHFuncTableSection(StringRef suffix,
return context.getObjectFileInfo()->getPDataSection();
return context.getCOFFSection((".pdata"+suffix).str(),
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
- COFF::IMAGE_SCN_MEM_READ |
- COFF::IMAGE_SCN_MEM_WRITE,
+ COFF::IMAGE_SCN_MEM_READ,
SectionKind::getDataRel());
}
generated by cgit v1.1 at 2025-11-10 18:50:36 +0000