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Make the DICountVisitor not a visitor. This keeps us from calling virtual

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functions and junk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53279 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2008-07-09 06:02:33 +00:00
parent 06b8c19957
commit 3e30cbb457
1 changed files with 154 additions and 33 deletions
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187
lib/CodeGen/MachineModuleInfo.cpp
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@ -150,6 +150,157 @@ static ConstantInt *getUIntOperand(GlobalVariable *GV, unsigned i) {
//===----------------------------------------------------------------------===//
static unsigned CountFields(DebugInfoDesc *DD) {
unsigned Count = 0;
switch (DD->getTag()) {
case DW_TAG_anchor: // AnchorDesc
// Tag
// AnchorTag
Count = 2;
break;
case DW_TAG_compile_unit: // CompileUnitDesc
// [DW_TAG_anchor]
// if (Version == 0) DebugVersion
// Language
// FileName
// Directory
// Producer
Count = 6;
// Handle cases out of sync with compiler.
if (DD->getVersion() == 0)
++Count;
break;
case DW_TAG_variable: // GlobalVariableDesc
// [DW_TAG_anchor]
// Context
// Name
// FullName
// LinkageName
// File
// Line
// TyDesc
// IsStatic
// IsDefinition
// Global
Count = 12;
break;
case DW_TAG_subprogram: // SubprogramDesc
// [DW_TAG_anchor]
// Context
// Name
// FullName
// LinkageName
// File
// Line
// TyDesc
// IsStatic
// IsDefinition
Count = 11;
break;
case DW_TAG_lexical_block: // BlockDesc
// Tag
// Context
Count = 2;
break;
case DW_TAG_base_type: // BasicTypeDesc
// Tag
// Context
// Name
// File
// Line
// Size
// Align
// Offset
// if (Version > LLVMDebugVersion4) Flags
// Encoding
Count = 9;
if (DD->getVersion() > LLVMDebugVersion4)
++Count;
break;
case DW_TAG_typedef:
case DW_TAG_pointer_type:
case DW_TAG_reference_type:
case DW_TAG_const_type:
case DW_TAG_volatile_type:
case DW_TAG_restrict_type:
case DW_TAG_member:
case DW_TAG_inheritance: // DerivedTypeDesc
// Tag
// Context
// Name
// File
// Line
// Size
// Align
// Offset
// if (Version > LLVMDebugVersion4) Flags
// FromType
Count = 9;
if (DD->getVersion() > LLVMDebugVersion4)
++Count;
break;
case DW_TAG_array_type:
case DW_TAG_structure_type:
case DW_TAG_union_type:
case DW_TAG_enumeration_type:
case DW_TAG_vector_type:
case DW_TAG_subroutine_type: // CompositeTypeDesc
// Tag
// Context
// Name
// File
// Line
// Size
// Align
// Offset
// if (Version > LLVMDebugVersion4) Flags
// FromType
// Elements
Count = 10;
if (DD->getVersion() > LLVMDebugVersion4)
++Count;
break;
case DW_TAG_subrange_type: // SubrangeDesc
// Tag
// Lo
// Hi
Count = 3;
break;
case DW_TAG_enumerator: // EnumeratorDesc
// Tag
// Name
// Value
Count = 3;
break;
case DW_TAG_return_variable:
case DW_TAG_arg_variable:
case DW_TAG_auto_variable: // VariableDesc
// Tag
// Context
// Name
// File
// Line
// TyDesc
Count = 6;
break;
default:
break;
}
return Count;
}
//===----------------------------------------------------------------------===//
/// ApplyToFields - Target the visitor to each field of the debug information
/// descriptor.
void DIVisitor::ApplyToFields(DebugInfoDesc *DD) {
@ -158,34 +309,6 @@ void DIVisitor::ApplyToFields(DebugInfoDesc *DD) {
namespace {
//===----------------------------------------------------------------------===//
/// DICountVisitor - This DIVisitor counts all the fields in the supplied debug
/// the supplied DebugInfoDesc.
class DICountVisitor : public DIVisitor {
private:
unsigned Count; // Running count of fields.
public:
DICountVisitor() : DIVisitor(), Count(0) {}
// Accessors.
unsigned getCount() const { return Count; }
/// Apply - Count each of the fields.
///
virtual void Apply(int &Field) { ++Count; }
virtual void Apply(unsigned &Field) { ++Count; }
virtual void Apply(int64_t &Field) { ++Count; }
virtual void Apply(uint64_t &Field) { ++Count; }
virtual void Apply(bool &Field) { ++Count; }
virtual void Apply(std::string &Field) { ++Count; }
virtual void Apply(DebugInfoDesc *&Field) { ++Count; }
virtual void Apply(GlobalVariable *&Field) { ++Count; }
virtual void Apply(std::vector<DebugInfoDesc *> &Field) {
++Count;
}
};
//===----------------------------------------------------------------------===//
/// DIDeserializeVisitor - This DIVisitor deserializes all the fields in the
/// supplied DebugInfoDesc.
@ -1443,12 +1566,10 @@ bool DIVerifier::Verify(GlobalVariable *GV) {
// Get the field count.
unsigned &CountSlot = Counts[Tag];
if (!CountSlot) {
if (!CountSlot)
// Check the operand count to the field count
DICountVisitor CTAM;
CTAM.ApplyToFields(DD);
CountSlot = CTAM.getCount();
}
CountSlot = CountFields(DD);
// Field count must be at most equal operand count.
if (CountSlot > N) {