//
//===----------------------------------------------------------------------===//
-#include "DIE.h"
+#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DIEHASH_H
+#define LLVM_LIB_CODEGEN_ASMPRINTER_DIEHASH_H
+
#include "llvm/ADT/DenseMap.h"
+#include "llvm/CodeGen/DIE.h"
#include "llvm/Support/MD5.h"
namespace llvm {
+class AsmPrinter;
class CompileUnit;
/// \brief An object containing the capability of hashing and adding hash
/// attributes onto a DIE.
class DIEHash {
- // The entry for a particular attribute.
- struct AttrEntry {
- const DIEValue *Val;
- const DIEAbbrevData *Desc;
- };
-
// Collection of all attributes used in hashing a particular DIE.
struct DIEAttrs {
- AttrEntry DW_AT_name;
- AttrEntry DW_AT_accessibility;
- AttrEntry DW_AT_address_class;
- AttrEntry DW_AT_allocated;
- AttrEntry DW_AT_artificial;
- AttrEntry DW_AT_associated;
- AttrEntry DW_AT_binary_scale;
- AttrEntry DW_AT_bit_offset;
- AttrEntry DW_AT_bit_size;
- AttrEntry DW_AT_bit_stride;
- AttrEntry DW_AT_byte_size;
- AttrEntry DW_AT_byte_stride;
- AttrEntry DW_AT_const_expr;
- AttrEntry DW_AT_const_value;
- AttrEntry DW_AT_containing_type;
- AttrEntry DW_AT_count;
- AttrEntry DW_AT_data_bit_offset;
- AttrEntry DW_AT_data_location;
- AttrEntry DW_AT_data_member_location;
- AttrEntry DW_AT_decimal_scale;
- AttrEntry DW_AT_decimal_sign;
- AttrEntry DW_AT_default_value;
- AttrEntry DW_AT_digit_count;
- AttrEntry DW_AT_discr;
- AttrEntry DW_AT_discr_list;
- AttrEntry DW_AT_discr_value;
- AttrEntry DW_AT_encoding;
- AttrEntry DW_AT_enum_class;
- AttrEntry DW_AT_endianity;
- AttrEntry DW_AT_explicit;
- AttrEntry DW_AT_is_optional;
- AttrEntry DW_AT_location;
- AttrEntry DW_AT_lower_bound;
- AttrEntry DW_AT_mutable;
- AttrEntry DW_AT_ordering;
- AttrEntry DW_AT_picture_string;
- AttrEntry DW_AT_prototyped;
- AttrEntry DW_AT_small;
- AttrEntry DW_AT_segment;
- AttrEntry DW_AT_string_length;
- AttrEntry DW_AT_threads_scaled;
- AttrEntry DW_AT_upper_bound;
- AttrEntry DW_AT_use_location;
- AttrEntry DW_AT_use_UTF8;
- AttrEntry DW_AT_variable_parameter;
- AttrEntry DW_AT_virtuality;
- AttrEntry DW_AT_visibility;
- AttrEntry DW_AT_vtable_elem_location;
- AttrEntry DW_AT_type;
+ DIEValue DW_AT_name;
+ DIEValue DW_AT_accessibility;
+ DIEValue DW_AT_address_class;
+ DIEValue DW_AT_allocated;
+ DIEValue DW_AT_artificial;
+ DIEValue DW_AT_associated;
+ DIEValue DW_AT_binary_scale;
+ DIEValue DW_AT_bit_offset;
+ DIEValue DW_AT_bit_size;
+ DIEValue DW_AT_bit_stride;
+ DIEValue DW_AT_byte_size;
+ DIEValue DW_AT_byte_stride;
+ DIEValue DW_AT_const_expr;
+ DIEValue DW_AT_const_value;
+ DIEValue DW_AT_containing_type;
+ DIEValue DW_AT_count;
+ DIEValue DW_AT_data_bit_offset;
+ DIEValue DW_AT_data_location;
+ DIEValue DW_AT_data_member_location;
+ DIEValue DW_AT_decimal_scale;
+ DIEValue DW_AT_decimal_sign;
+ DIEValue DW_AT_default_value;
+ DIEValue DW_AT_digit_count;
+ DIEValue DW_AT_discr;
+ DIEValue DW_AT_discr_list;
+ DIEValue DW_AT_discr_value;
+ DIEValue DW_AT_encoding;
+ DIEValue DW_AT_enum_class;
+ DIEValue DW_AT_endianity;
+ DIEValue DW_AT_explicit;
+ DIEValue DW_AT_is_optional;
+ DIEValue DW_AT_location;
+ DIEValue DW_AT_lower_bound;
+ DIEValue DW_AT_mutable;
+ DIEValue DW_AT_ordering;
+ DIEValue DW_AT_picture_string;
+ DIEValue DW_AT_prototyped;
+ DIEValue DW_AT_small;
+ DIEValue DW_AT_segment;
+ DIEValue DW_AT_string_length;
+ DIEValue DW_AT_threads_scaled;
+ DIEValue DW_AT_upper_bound;
+ DIEValue DW_AT_use_location;
+ DIEValue DW_AT_use_UTF8;
+ DIEValue DW_AT_variable_parameter;
+ DIEValue DW_AT_virtuality;
+ DIEValue DW_AT_visibility;
+ DIEValue DW_AT_vtable_elem_location;
+ DIEValue DW_AT_type;
// Insert any additional ones here...
};
public:
- /// \brief Computes the ODR signature.
- uint64_t computeDIEODRSignature(const DIE &Die);
+ DIEHash(AsmPrinter *A = nullptr) : AP(A) {}
/// \brief Computes the CU signature.
uint64_t computeCUSignature(const DIE &Die);
void computeHash(const DIE &Die);
// Routines that add DIEValues to the hash.
-private:
+public:
+ /// \brief Adds \param Value to the hash.
+ void update(uint8_t Value) { Hash.update(Value); }
+
/// \brief Encodes and adds \param Value to the hash as a ULEB128.
void addULEB128(uint64_t Value);
/// \brief Encodes and adds \param Value to the hash as a SLEB128.
void addSLEB128(int64_t Value);
+private:
/// \brief Adds \param Str to the hash and includes a NULL byte.
void addString(StringRef Str);
/// \brief Hashes the attributes in \param Attrs in order.
void hashAttributes(const DIEAttrs &Attrs, dwarf::Tag Tag);
+ /// \brief Hashes the data in a block like DIEValue, e.g. DW_FORM_block or
+ /// DW_FORM_exprloc.
+ void hashBlockData(const DIE::const_value_range &Values);
+
+ /// \brief Hashes the contents pointed to in the .debug_loc section.
+ void hashLocList(const DIELocList &LocList);
+
/// \brief Hashes an individual attribute.
- void hashAttribute(AttrEntry Attr, dwarf::Tag Tag);
+ void hashAttribute(DIEValue Value, dwarf::Tag Tag);
/// \brief Hashes an attribute that refers to another DIE.
void hashDIEEntry(dwarf::Attribute Attribute, dwarf::Tag Tag,
StringRef Name);
/// \brief Hashes a reference to a previously referenced type DIE.
- void hashRepeatedTypeReference(dwarf::Attribute Attribute, unsigned DieNumber);
+ void hashRepeatedTypeReference(dwarf::Attribute Attribute,
+ unsigned DieNumber);
void hashNestedType(const DIE &Die, StringRef Name);
private:
MD5 Hash;
+ AsmPrinter *AP;
DenseMap<const DIE *, unsigned> Numbering;
};
}
+
+#endif
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