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Diffstat (limited to 'llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp')
-rw-r--r--llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp95
1 files changed, 44 insertions, 51 deletions
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp b/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp
index e19f5b8138fa..523dee486d2d 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFExpression.cpp
@@ -8,7 +8,6 @@
#include "llvm/DebugInfo/DWARF/DWARFExpression.h"
#include "llvm/DebugInfo/DWARF/DWARFUnit.h"
-#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/Support/Format.h"
#include <cassert>
#include <cstdint>
@@ -119,7 +118,7 @@ static DWARFExpression::Operation::Description getOpDesc(unsigned OpCode) {
bool DWARFExpression::Operation::extract(DataExtractor Data,
uint8_t AddressSize, uint64_t Offset,
- Optional<DwarfFormat> Format) {
+ std::optional<DwarfFormat> Format) {
EndOffset = Offset;
Opcode = Data.getU8(&Offset);
@@ -225,11 +224,11 @@ static void prettyPrintBaseTypeRef(DWARFUnit *U, raw_ostream &OS,
}
}
-static bool prettyPrintRegisterOp(DWARFUnit *U, raw_ostream &OS,
- DIDumpOptions DumpOpts, uint8_t Opcode,
- const uint64_t Operands[2],
- const MCRegisterInfo *MRI, bool isEH) {
- if (!MRI)
+bool DWARFExpression::prettyPrintRegisterOp(DWARFUnit *U, raw_ostream &OS,
+ DIDumpOptions DumpOpts,
+ uint8_t Opcode,
+ const uint64_t Operands[2]) {
+ if (!DumpOpts.GetNameForDWARFReg)
return false;
uint64_t DwarfRegNum;
@@ -243,18 +242,17 @@ static bool prettyPrintRegisterOp(DWARFUnit *U, raw_ostream &OS,
else
DwarfRegNum = Opcode - DW_OP_reg0;
- if (Optional<unsigned> LLVMRegNum = MRI->getLLVMRegNum(DwarfRegNum, isEH)) {
- if (const char *RegName = MRI->getName(*LLVMRegNum)) {
- if ((Opcode >= DW_OP_breg0 && Opcode <= DW_OP_breg31) ||
- Opcode == DW_OP_bregx)
- OS << format(" %s%+" PRId64, RegName, Operands[OpNum]);
- else
- OS << ' ' << RegName;
-
- if (Opcode == DW_OP_regval_type)
- prettyPrintBaseTypeRef(U, OS, DumpOpts, Operands, 1);
- return true;
- }
+ auto RegName = DumpOpts.GetNameForDWARFReg(DwarfRegNum, DumpOpts.IsEH);
+ if (!RegName.empty()) {
+ if ((Opcode >= DW_OP_breg0 && Opcode <= DW_OP_breg31) ||
+ Opcode == DW_OP_bregx)
+ OS << ' ' << RegName << format("%+" PRId64, Operands[OpNum]);
+ else
+ OS << ' ' << RegName.data();
+
+ if (Opcode == DW_OP_regval_type)
+ prettyPrintBaseTypeRef(U, OS, DumpOpts, Operands, 1);
+ return true;
}
return false;
@@ -262,8 +260,7 @@ static bool prettyPrintRegisterOp(DWARFUnit *U, raw_ostream &OS,
bool DWARFExpression::Operation::print(raw_ostream &OS, DIDumpOptions DumpOpts,
const DWARFExpression *Expr,
- const MCRegisterInfo *RegInfo,
- DWARFUnit *U, bool isEH) const {
+ DWARFUnit *U) const {
if (Error) {
OS << "<decoding error>";
return false;
@@ -277,7 +274,7 @@ bool DWARFExpression::Operation::print(raw_ostream &OS, DIDumpOptions DumpOpts,
(Opcode >= DW_OP_reg0 && Opcode <= DW_OP_reg31) ||
Opcode == DW_OP_bregx || Opcode == DW_OP_regx ||
Opcode == DW_OP_regval_type)
- if (prettyPrintRegisterOp(U, OS, DumpOpts, Opcode, Operands, RegInfo, isEH))
+ if (prettyPrintRegisterOp(U, OS, DumpOpts, Opcode, Operands))
return true;
for (unsigned Operand = 0; Operand < 2; ++Operand) {
@@ -323,15 +320,15 @@ bool DWARFExpression::Operation::print(raw_ostream &OS, DIDumpOptions DumpOpts,
}
void DWARFExpression::print(raw_ostream &OS, DIDumpOptions DumpOpts,
- const MCRegisterInfo *RegInfo, DWARFUnit *U,
- bool IsEH) const {
+ DWARFUnit *U, bool IsEH) const {
uint32_t EntryValExprSize = 0;
uint64_t EntryValStartOffset = 0;
if (Data.getData().empty())
OS << "<empty>";
for (auto &Op : *this) {
- if (!Op.print(OS, DumpOpts, this, RegInfo, U, IsEH)) {
+ DumpOpts.IsEH = IsEH;
+ if (!Op.print(OS, DumpOpts, this, U)) {
uint64_t FailOffset = Op.getEndOffset();
while (FailOffset < Data.getData().size())
OS << format(" %02x", Data.getU8(&FailOffset));
@@ -402,9 +399,11 @@ struct PrintedExpr {
PrintedExpr(ExprKind K = Address) : Kind(K) {}
};
-static bool printCompactDWARFExpr(raw_ostream &OS, DWARFExpression::iterator I,
- const DWARFExpression::iterator E,
- const MCRegisterInfo &MRI) {
+static bool printCompactDWARFExpr(
+ raw_ostream &OS, DWARFExpression::iterator I,
+ const DWARFExpression::iterator E,
+ std::function<StringRef(uint64_t RegNum, bool IsEH)> GetNameForDWARFReg =
+ nullptr) {
SmallVector<PrintedExpr, 4> Stack;
while (I != E) {
@@ -415,25 +414,21 @@ static bool printCompactDWARFExpr(raw_ostream &OS, DWARFExpression::iterator I,
// DW_OP_regx: A register, with the register num given as an operand.
// Printed as the plain register name.
uint64_t DwarfRegNum = Op.getRawOperand(0);
- Optional<unsigned> LLVMRegNum = MRI.getLLVMRegNum(DwarfRegNum, false);
- if (!LLVMRegNum) {
- OS << "<unknown register " << DwarfRegNum << ">";
+ auto RegName = GetNameForDWARFReg(DwarfRegNum, false);
+ if (RegName.empty())
return false;
- }
raw_svector_ostream S(Stack.emplace_back(PrintedExpr::Value).String);
- S << MRI.getName(*LLVMRegNum);
+ S << RegName;
break;
}
case dwarf::DW_OP_bregx: {
int DwarfRegNum = Op.getRawOperand(0);
int64_t Offset = Op.getRawOperand(1);
- Optional<unsigned> LLVMRegNum = MRI.getLLVMRegNum(DwarfRegNum, false);
- if (!LLVMRegNum) {
- OS << "<unknown register " << DwarfRegNum << ">";
+ auto RegName = GetNameForDWARFReg(DwarfRegNum, false);
+ if (RegName.empty())
return false;
- }
raw_svector_ostream S(Stack.emplace_back().String);
- S << MRI.getName(*LLVMRegNum);
+ S << RegName;
if (Offset)
S << format("%+" PRId64, Offset);
break;
@@ -447,7 +442,7 @@ static bool printCompactDWARFExpr(raw_ostream &OS, DWARFExpression::iterator I,
++I;
raw_svector_ostream S(Stack.emplace_back().String);
S << "entry(";
- printCompactDWARFExpr(S, I, SubExprEnd, MRI);
+ printCompactDWARFExpr(S, I, SubExprEnd, GetNameForDWARFReg);
S << ")";
I = SubExprEnd;
continue;
@@ -464,24 +459,20 @@ static bool printCompactDWARFExpr(raw_ostream &OS, DWARFExpression::iterator I,
// DW_OP_reg<N>: A register, with the register num implied by the
// opcode. Printed as the plain register name.
uint64_t DwarfRegNum = Opcode - dwarf::DW_OP_reg0;
- Optional<unsigned> LLVMRegNum = MRI.getLLVMRegNum(DwarfRegNum, false);
- if (!LLVMRegNum) {
- OS << "<unknown register " << DwarfRegNum << ">";
+ auto RegName = GetNameForDWARFReg(DwarfRegNum, false);
+ if (RegName.empty())
return false;
- }
raw_svector_ostream S(Stack.emplace_back(PrintedExpr::Value).String);
- S << MRI.getName(*LLVMRegNum);
+ S << RegName;
} else if (Opcode >= dwarf::DW_OP_breg0 &&
Opcode <= dwarf::DW_OP_breg31) {
int DwarfRegNum = Opcode - dwarf::DW_OP_breg0;
int64_t Offset = Op.getRawOperand(0);
- Optional<unsigned> LLVMRegNum = MRI.getLLVMRegNum(DwarfRegNum, false);
- if (!LLVMRegNum) {
- OS << "<unknown register " << DwarfRegNum << ">";
+ auto RegName = GetNameForDWARFReg(DwarfRegNum, false);
+ if (RegName.empty())
return false;
- }
raw_svector_ostream S(Stack.emplace_back().String);
- S << MRI.getName(*LLVMRegNum);
+ S << RegName;
if (Offset)
S << format("%+" PRId64, Offset);
} else {
@@ -506,8 +497,10 @@ static bool printCompactDWARFExpr(raw_ostream &OS, DWARFExpression::iterator I,
return true;
}
-bool DWARFExpression::printCompact(raw_ostream &OS, const MCRegisterInfo &MRI) {
- return printCompactDWARFExpr(OS, begin(), end(), MRI);
+bool DWARFExpression::printCompact(
+ raw_ostream &OS,
+ std::function<StringRef(uint64_t RegNum, bool IsEH)> GetNameForDWARFReg) {
+ return printCompactDWARFExpr(OS, begin(), end(), GetNameForDWARFReg);
}
bool DWARFExpression::operator==(const DWARFExpression &RHS) const {
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-03 22:50:40 +0000