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PDBFPO: add dyn_cast support

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This adds the necessary glue so we can use llvm::dyn_cast, instead of
doing a manual type-check followed by a cast. NFC.

llvm-svn: 357895
This commit is contained in:
Pavel Labath
2019-04-08 09:52:57 +00:00
parent edf91ed855
commit 1beeda682b
1 changed files with 25 additions and 7 deletions
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32
lldb/source/Plugins/SymbolFile/NativePDB/PdbFPOProgramToDWARFExpression.cpp
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@@ -18,6 +18,7 @@
#include "llvm/ADT/StringExtras.h"
#include "llvm/DebugInfo/CodeView/CodeView.h"
#include "llvm/DebugInfo/CodeView/EnumTables.h"
#include "llvm/Support/Casting.h"
using namespace lldb;
using namespace lldb_private;
@@ -70,6 +71,10 @@ public:
llvm::StringRef GetName() const { return m_name; }
static bool classof(const FPOProgramNode *node) {
return node->GetKind() == Symbol;
}
private:
llvm::StringRef m_name;
};
@@ -83,6 +88,10 @@ public:
uint32_t GetLLDBRegNum() const { return m_lldb_reg_num; }
static bool classof(const FPOProgramNode *node) {
return node->GetKind() == Register;
}
private:
uint32_t m_lldb_reg_num;
};
@@ -96,6 +105,10 @@ public:
uint32_t GetValue() const { return m_value; }
static bool classof(const FPOProgramNode *node) {
return node->GetKind() == IntegerLiteral;
}
private:
uint32_t m_value;
};
@@ -123,6 +136,10 @@ public:
const FPOProgramNode *Right() const { return m_right; }
FPOProgramNode *&Right() { return m_right; }
static bool classof(const FPOProgramNode *node) {
return node->GetKind() == BinaryOp;
}
private:
OpType m_op_type;
FPOProgramNode *m_left;
@@ -145,6 +162,10 @@ public:
const FPOProgramNode *Operand() const { return m_operand; }
FPOProgramNode *&Operand() { return m_operand; }
static bool classof(const FPOProgramNode *node) {
return node->GetKind() == UnaryOp;
}
private:
OpType m_op_type;
FPOProgramNode *m_operand;
@@ -216,10 +237,8 @@ void FPOProgramASTVisitorMergeDependent::Visit(FPOProgramNodeUnaryOp &node) {
void FPOProgramASTVisitorMergeDependent::TryReplace(
FPOProgramNode *&node_ref) const {
while (node_ref->GetKind() == FPOProgramNode::Symbol) {
auto *node_symbol_ref = static_cast<FPOProgramNodeSymbol *>(node_ref);
auto it = m_dependent_programs.find(node_symbol_ref->GetName());
while (auto *symbol = llvm::dyn_cast<FPOProgramNodeSymbol>(node_ref)) {
auto it = m_dependent_programs.find(symbol->GetName());
if (it == m_dependent_programs.end()) {
break;
}
@@ -277,11 +296,10 @@ static uint32_t ResolveLLDBRegisterNum(llvm::StringRef reg_name, llvm::Triple::A
bool FPOProgramASTVisitorResolveRegisterRefs::TryReplace(
FPOProgramNode *&node_ref) {
if (node_ref->GetKind() != FPOProgramNode::Symbol)
auto *symbol = llvm::dyn_cast<FPOProgramNodeSymbol>(node_ref);
if (!symbol)
return true;
auto *symbol = static_cast<FPOProgramNodeSymbol *>(node_ref);
// Look up register reference as lvalue in preceding assignments.
auto it = m_dependent_programs.find(symbol->GetName());
if (it != m_dependent_programs.end()) {