Vendor import of llvm trunk r126079:

http://llvm.org/svn/llvm-project/llvm/trunk@126079
author: dim <dim@FreeBSD.org> 2011-02-20 12:57:14 +0000
committer: dim <dim@FreeBSD.org> 2011-02-20 12:57:14 +0000
commit: cbb70ce070d220642b038ea101d9c0f9fbf860d6 (patch)
tree: d2b61ce94e654cb01a254d2195259db5f9cc3f3c /lib/Analysis/DIBuilder.cpp
parent: 4ace901e87dac5bbbac78ed325e75462e48e386e (diff)
download: FreeBSD-src-cbb70ce070d220642b038ea101d9c0f9fbf860d6.zip
FreeBSD-src-cbb70ce070d220642b038ea101d9c0f9fbf860d6.tar.gz
1 files changed, 801 insertions, 0 deletions
diff --git a/lib/Analysis/DIBuilder.cpp b/lib/Analysis/DIBuilder.cpp
new file mode 100644
index 0000000..c1072df
--- /dev/null
+++ b/lib/Analysis/DIBuilder.cpp
@@ -0,0 +1,801 @@
+//===--- DIBuilder.cpp - Debug Information Builder ------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the DIBuilder.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Analysis/DIBuilder.h"
+#include "llvm/Analysis/DebugInfo.h"
+#include "llvm/Constants.h"
+#include "llvm/IntrinsicInst.h"
+#include "llvm/Module.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/Support/Dwarf.h"
+
+using namespace llvm;
+using namespace llvm::dwarf;
+
+static Constant *GetTagConstant(LLVMContext &VMContext, unsigned Tag) {
+  assert((Tag & LLVMDebugVersionMask) == 0 &&
+         "Tag too large for debug encoding!");
+  return ConstantInt::get(Type::getInt32Ty(VMContext), Tag | LLVMDebugVersion);
+}
+
+DIBuilder::DIBuilder(Module &m)
+  : M(m), VMContext(M.getContext()), TheCU(0), DeclareFn(0), ValueFn(0) {}
+
+/// CreateCompileUnit - A CompileUnit provides an anchor for all debugging
+/// information generated during this instance of compilation.
+void DIBuilder::CreateCompileUnit(unsigned Lang, StringRef Filename, 
+                                  StringRef Directory, StringRef Producer, 
+                                  bool isOptimized, StringRef Flags, 
+                                  unsigned RunTimeVer) {
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_compile_unit),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    ConstantInt::get(Type::getInt32Ty(VMContext), Lang),
+    MDString::get(VMContext, Filename),
+    MDString::get(VMContext, Directory),
+    MDString::get(VMContext, Producer),
+    // Deprecate isMain field.
+    ConstantInt::get(Type::getInt1Ty(VMContext), true), // isMain
+    ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
+    MDString::get(VMContext, Flags),
+    ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeVer)
+  };
+  TheCU = DICompileUnit(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateFile - Create a file descriptor to hold debugging information
+/// for a file.
+DIFile DIBuilder::CreateFile(StringRef Filename, StringRef Directory) {
+  assert(TheCU && "Unable to create DW_TAG_file_type without CompileUnit");
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_file_type),
+    MDString::get(VMContext, Filename),
+    MDString::get(VMContext, Directory),
+    TheCU
+  };
+  return DIFile(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateEnumerator - Create a single enumerator value.
+DIEnumerator DIBuilder::CreateEnumerator(StringRef Name, uint64_t Val) {
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_enumerator),
+    MDString::get(VMContext, Name),
+    ConstantInt::get(Type::getInt64Ty(VMContext), Val)
+  };
+  return DIEnumerator(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateBasicType - Create debugging information entry for a basic 
+/// type, e.g 'char'.
+DIType DIBuilder::CreateBasicType(StringRef Name, uint64_t SizeInBits, 
+                                  uint64_t AlignInBits,
+                                  unsigned Encoding) {
+  // Basic types are encoded in DIBasicType format. Line number, filename,
+  // offset and flags are always empty here.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_base_type),
+    TheCU,
+    MDString::get(VMContext, Name),
+    NULL, // Filename
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
+    ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
+    ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags;
+    ConstantInt::get(Type::getInt32Ty(VMContext), Encoding)
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateQaulifiedType - Create debugging information entry for a qualified
+/// type, e.g. 'const int'.
+DIType DIBuilder::CreateQualifiedType(unsigned Tag, DIType FromTy) {
+  // Qualified types are encoded in DIDerivedType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, Tag),
+    TheCU,
+    MDString::get(VMContext, StringRef()), // Empty name.
+    NULL, // Filename
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
+    FromTy
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreatePointerType - Create debugging information entry for a pointer.
+DIType DIBuilder::CreatePointerType(DIType PointeeTy, uint64_t SizeInBits,
+                                    uint64_t AlignInBits, StringRef Name) {
+  // Pointer types are encoded in DIDerivedType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_pointer_type),
+    TheCU,
+    MDString::get(VMContext, Name),
+    NULL, // Filename
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
+    ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
+    ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
+    PointeeTy
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateReferenceType - Create debugging information entry for a reference.
+DIType DIBuilder::CreateReferenceType(DIType RTy) {
+  // References are encoded in DIDerivedType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_reference_type),
+    TheCU,
+    NULL, // Name
+    NULL, // Filename
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
+    RTy
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateTypedef - Create debugging information entry for a typedef.
+DIType DIBuilder::CreateTypedef(DIType Ty, StringRef Name, DIFile File,
+                                unsigned LineNo) {
+  // typedefs are encoded in DIDerivedType format.
+  assert(Ty.Verify() && "Invalid typedef type!");
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_typedef),
+    Ty.getContext(),
+    MDString::get(VMContext, Name),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
+    Ty
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateFriend - Create debugging information entry for a 'friend'.
+DIType DIBuilder::CreateFriend(DIType Ty, DIType FriendTy) {
+  // typedefs are encoded in DIDerivedType format.
+  assert(Ty.Verify() && "Invalid type!");
+  assert(FriendTy.Verify() && "Invalid friend type!");
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_friend),
+    Ty,
+    NULL, // Name
+    Ty.getFile(),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
+    FriendTy
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateInheritance - Create debugging information entry to establish
+/// inheritnace relationship between two types.
+DIType DIBuilder::CreateInheritance(DIType Ty, DIType BaseTy, 
+                                    uint64_t BaseOffset, unsigned Flags) {
+  // TAG_inheritance is encoded in DIDerivedType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_inheritance),
+    Ty,
+    NULL, // Name
+    Ty.getFile(),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
+    ConstantInt::get(Type::getInt64Ty(VMContext), BaseOffset),
+    ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
+    BaseTy
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateMemberType - Create debugging information entry for a member.
+DIType DIBuilder::CreateMemberType(StringRef Name, 
+                                   DIFile File, unsigned LineNumber, 
+                                   uint64_t SizeInBits, uint64_t AlignInBits,
+                                   uint64_t OffsetInBits, unsigned Flags, 
+                                   DIType Ty) {
+  // TAG_member is encoded in DIDerivedType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_member),
+    File, // Or TheCU ? Ty ?
+    MDString::get(VMContext, Name),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
+    ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
+    ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+    ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
+    ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
+    Ty
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateClassType - Create debugging information entry for a class.
+DIType DIBuilder::CreateClassType(DIDescriptor Context, StringRef Name, 
+                                  DIFile File, unsigned LineNumber, 
+                                  uint64_t SizeInBits, uint64_t AlignInBits,
+                                  uint64_t OffsetInBits, unsigned Flags,
+                                  DIType DerivedFrom, DIArray Elements,
+                                  MDNode *VTableHoder, MDNode *TemplateParams) {
+ // TAG_class_type is encoded in DICompositeType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_class_type),
+    Context,
+    MDString::get(VMContext, Name),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
+    ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
+    ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+    ConstantInt::get(Type::getInt32Ty(VMContext), OffsetInBits),
+    ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
+    DerivedFrom,
+    Elements,
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    VTableHoder,
+    TemplateParams
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateTemplateTypeParameter - Create debugging information for template
+/// type parameter.
+DITemplateTypeParameter 
+DIBuilder::CreateTemplateTypeParameter(DIDescriptor Context, StringRef Name,
+                                       DIType Ty, MDNode *File, unsigned LineNo,
+                                       unsigned ColumnNo) {
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_template_type_parameter),
+    Context,
+    MDString::get(VMContext, Name),
+    Ty,
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+    ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo)
+  };
+  return DITemplateTypeParameter(MDNode::get(VMContext, &Elts[0], 
+                                             array_lengthof(Elts)));
+}
+
+/// CreateTemplateValueParameter - Create debugging information for template
+/// value parameter.
+DITemplateValueParameter 
+DIBuilder::CreateTemplateValueParameter(DIDescriptor Context, StringRef Name,
+                                        DIType Ty, uint64_t Val,
+                                        MDNode *File, unsigned LineNo,
+                                        unsigned ColumnNo) {
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_template_value_parameter),
+    Context,
+    MDString::get(VMContext, Name),
+    Ty,
+    ConstantInt::get(Type::getInt64Ty(VMContext), Val),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+    ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo)
+  };
+  return DITemplateValueParameter(MDNode::get(VMContext, &Elts[0], 
+                                              array_lengthof(Elts)));
+}
+
+/// CreateStructType - Create debugging information entry for a struct.
+DIType DIBuilder::CreateStructType(DIDescriptor Context, StringRef Name, 
+                                   DIFile File, unsigned LineNumber, 
+                                   uint64_t SizeInBits, uint64_t AlignInBits,
+                                   unsigned Flags, DIArray Elements, 
+                                   unsigned RunTimeLang) {
+ // TAG_structure_type is encoded in DICompositeType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_structure_type),
+    Context,
+    MDString::get(VMContext, Name),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
+    ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
+    ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    Elements,
+    ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateUnionType - Create debugging information entry for an union.
+DIType DIBuilder::CreateUnionType(DIDescriptor Scope, StringRef Name, 
+                                  DIFile File,
+                                  unsigned LineNumber, uint64_t SizeInBits,
+                                  uint64_t AlignInBits, unsigned Flags,
+                                  DIArray Elements, unsigned RunTimeLang) {
+  // TAG_union_type is encoded in DICompositeType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_union_type),
+    Scope,
+    MDString::get(VMContext, Name),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
+    ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
+    ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    Elements,
+    ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateSubroutineType - Create subroutine type.
+DIType DIBuilder::CreateSubroutineType(DIFile File, DIArray ParameterTypes) {
+  // TAG_subroutine_type is encoded in DICompositeType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_subroutine_type),
+    File,
+    MDString::get(VMContext, ""),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt64Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    ParameterTypes,
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateEnumerationType - Create debugging information entry for an 
+/// enumeration.
+DIType DIBuilder::CreateEnumerationType(DIDescriptor Scope, StringRef Name, 
+                                        DIFile File, unsigned LineNumber, 
+                                        uint64_t SizeInBits, 
+                                        uint64_t AlignInBits, DIArray Elements) {
+  // TAG_enumeration_type is encoded in DICompositeType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_enumeration_type),
+    Scope,
+    MDString::get(VMContext, Name),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
+    ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
+    ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    Elements,
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+  };
+  MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
+  NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.enum");
+  NMD->addOperand(Node);
+  return DIType(Node);
+}
+
+/// CreateArrayType - Create debugging information entry for an array.
+DIType DIBuilder::CreateArrayType(uint64_t Size, uint64_t AlignInBits, 
+                                  DIType Ty, DIArray Subscripts) {
+  // TAG_array_type is encoded in DICompositeType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_array_type),
+    TheCU,
+    MDString::get(VMContext, ""),
+    TheCU,
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt64Ty(VMContext), Size),
+    ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    Ty,
+    Subscripts,
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateVectorType - Create debugging information entry for a vector.
+DIType DIBuilder::CreateVectorType(uint64_t Size, uint64_t AlignInBits, 
+                                   DIType Ty, DIArray Subscripts) {
+  // TAG_vector_type is encoded in DICompositeType format.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_vector_type),
+    TheCU,
+    MDString::get(VMContext, ""),
+    TheCU,
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt64Ty(VMContext), Size),
+    ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    Ty,
+    Subscripts,
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+  };
+  return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// CreateArtificialType - Create a new DIType with "artificial" flag set.
+DIType DIBuilder::CreateArtificialType(DIType Ty) {
+  if (Ty.isArtificial())
+    return Ty;
+
+  SmallVector<Value *, 9> Elts;
+  MDNode *N = Ty;
+  assert (N && "Unexpected input DIType!");
+  for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
+    if (Value *V = N->getOperand(i))
+      Elts.push_back(V);
+    else
+      Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)));
+  }
+
+  unsigned CurFlags = Ty.getFlags();
+  CurFlags = CurFlags | DIType::FlagArtificial;
+
+  // Flags are stored at this slot.
+  Elts[8] =  ConstantInt::get(Type::getInt32Ty(VMContext), CurFlags);
+
+  return DIType(MDNode::get(VMContext, Elts.data(), Elts.size()));
+}
+
+/// RetainType - Retain DIType in a module even if it is not referenced 
+/// through debug info anchors.
+void DIBuilder::RetainType(DIType T) {
+  NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.ty");
+  NMD->addOperand(T);
+}
+
+/// CreateUnspecifiedParameter - Create unspeicified type descriptor
+/// for the subroutine type.
+DIDescriptor DIBuilder::CreateUnspecifiedParameter() {
+  Value *Elts[] = { 
+    GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_parameters) 
+  };
+  return DIDescriptor(MDNode::get(VMContext, &Elts[0], 1));
+}
+
+/// CreateTemporaryType - Create a temporary forward-declared type.
+DIType DIBuilder::CreateTemporaryType() {
+  // Give the temporary MDNode a tag. It doesn't matter what tag we
+  // use here as long as DIType accepts it.
+  Value *Elts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
+  MDNode *Node = MDNode::getTemporary(VMContext, Elts, array_lengthof(Elts));
+  return DIType(Node);
+}
+
+/// CreateTemporaryType - Create a temporary forward-declared type.
+DIType DIBuilder::CreateTemporaryType(DIFile F) {
+  // Give the temporary MDNode a tag. It doesn't matter what tag we
+  // use here as long as DIType accepts it.
+  Value *Elts[] = {
+    GetTagConstant(VMContext, DW_TAG_base_type),
+    F.getCompileUnit(),
+    NULL,
+    F
+  };
+  MDNode *Node = MDNode::getTemporary(VMContext, Elts, array_lengthof(Elts));
+  return DIType(Node);
+}
+
+/// GetOrCreateArray - Get a DIArray, create one if required.
+DIArray DIBuilder::GetOrCreateArray(Value *const *Elements, unsigned NumElements) {
+  if (NumElements == 0) {
+    Value *Null = llvm::Constant::getNullValue(Type::getInt32Ty(VMContext));
+    return DIArray(MDNode::get(VMContext, &Null, 1));
+  }
+  return DIArray(MDNode::get(VMContext, Elements, NumElements));
+}
+
+/// GetOrCreateSubrange - Create a descriptor for a value range.  This
+/// implicitly uniques the values returned.
+DISubrange DIBuilder::GetOrCreateSubrange(int64_t Lo, int64_t Hi) {
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_subrange_type),
+    ConstantInt::get(Type::getInt64Ty(VMContext), Lo),
+    ConstantInt::get(Type::getInt64Ty(VMContext), Hi)
+  };
+
+  return DISubrange(MDNode::get(VMContext, &Elts[0], 3));
+}
+
+/// CreateGlobalVariable - Create a new descriptor for the specified global.
+DIGlobalVariable DIBuilder::
+CreateGlobalVariable(StringRef Name, DIFile F, unsigned LineNumber, 
+                     DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_variable),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    TheCU,
+    MDString::get(VMContext, Name),
+    MDString::get(VMContext, Name),
+    MDString::get(VMContext, Name),
+    F,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
+    Ty,
+    ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
+    Val
+  };
+  MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
+  // Create a named metadata so that we do not lose this mdnode.
+  NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv");
+  NMD->addOperand(Node);
+  return DIGlobalVariable(Node);
+}
+
+/// CreateStaticVariable - Create a new descriptor for the specified static
+/// variable.
+DIGlobalVariable DIBuilder::
+CreateStaticVariable(DIDescriptor Context, StringRef Name, 
+                     StringRef LinkageName, DIFile F, unsigned LineNumber, 
+                     DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_variable),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    Context,
+    MDString::get(VMContext, Name),
+    MDString::get(VMContext, Name),
+    MDString::get(VMContext, LinkageName),
+    F,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
+    Ty,
+    ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
+    Val
+  };
+  MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
+  // Create a named metadata so that we do not lose this mdnode.
+  NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv");
+  NMD->addOperand(Node);
+  return DIGlobalVariable(Node);
+}
+
+/// CreateVariable - Create a new descriptor for the specified variable.
+DIVariable DIBuilder::CreateLocalVariable(unsigned Tag, DIDescriptor Scope,
+                                          StringRef Name, DIFile File,
+                                          unsigned LineNo, DIType Ty, 
+                                          bool AlwaysPreserve, unsigned Flags) {
+  Value *Elts[] = {
+    GetTagConstant(VMContext, Tag),
+    Scope,
+    MDString::get(VMContext, Name),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+    Ty,
+    ConstantInt::get(Type::getInt32Ty(VMContext), Flags)
+  };
+  MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
+  if (AlwaysPreserve) {
+    // The optimizer may remove local variable. If there is an interest
+    // to preserve variable info in such situation then stash it in a
+    // named mdnode.
+    DISubprogram Fn(getDISubprogram(Scope));
+    StringRef FName = "fn";
+    if (Fn.getFunction())
+      FName = Fn.getFunction()->getName();
+    char One = '\1';
+    if (FName.startswith(StringRef(&One, 1)))
+      FName = FName.substr(1);
+    NamedMDNode *FnLocals = getOrInsertFnSpecificMDNode(M, FName);
+    FnLocals->addOperand(Node);
+  }
+  return DIVariable(Node);
+}
+
+/// CreateComplexVariable - Create a new descriptor for the specified variable
+/// which has a complex address expression for its address.
+DIVariable DIBuilder::CreateComplexVariable(unsigned Tag, DIDescriptor Scope,
+                                            StringRef Name, DIFile F,
+                                            unsigned LineNo,
+                                            DIType Ty, Value *const *Addr,
+                                            unsigned NumAddr) {
+  SmallVector<Value *, 15> Elts;
+  Elts.push_back(GetTagConstant(VMContext, Tag));
+  Elts.push_back(Scope);
+  Elts.push_back(MDString::get(VMContext, Name));
+  Elts.push_back(F);
+  Elts.push_back(ConstantInt::get(Type::getInt32Ty(VMContext), LineNo));
+  Elts.push_back(Ty);
+  Elts.append(Addr, Addr+NumAddr);
+
+  return DIVariable(MDNode::get(VMContext, Elts.data(), Elts.size()));
+}
+
+/// CreateFunction - Create a new descriptor for the specified function.
+DISubprogram DIBuilder::CreateFunction(DIDescriptor Context,
+                                       StringRef Name,
+                                       StringRef LinkageName,
+                                       DIFile File, unsigned LineNo,
+                                       DIType Ty,
+                                       bool isLocalToUnit, bool isDefinition,
+                                       unsigned Flags, bool isOptimized,
+                                       Function *Fn) {
+
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    Context,
+    MDString::get(VMContext, Name),
+    MDString::get(VMContext, Name),
+    MDString::get(VMContext, LinkageName),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+    Ty,
+    ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
+    ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    ConstantInt::get(Type::getInt32Ty(VMContext), 0),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
+    ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
+    Fn
+  };
+  MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
+
+  // Create a named metadata so that we do not lose this mdnode.
+  NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp");
+  NMD->addOperand(Node);
+  return DISubprogram(Node);
+}
+
+/// CreateMethod - Create a new descriptor for the specified C++ method.
+DISubprogram DIBuilder::CreateMethod(DIDescriptor Context,
+                                     StringRef Name,
+                                     StringRef LinkageName,
+                                     DIFile F,
+                                     unsigned LineNo, DIType Ty,
+                                     bool isLocalToUnit,
+                                     bool isDefinition,
+                                     unsigned VK, unsigned VIndex,
+                                     MDNode *VTableHolder,
+                                     unsigned Flags,
+                                     bool isOptimized,
+                                     Function *Fn) {
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
+    llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
+    Context,
+    MDString::get(VMContext, Name),
+    MDString::get(VMContext, Name),
+    MDString::get(VMContext, LinkageName),
+    F,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
+    Ty,
+    ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
+    ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
+    ConstantInt::get(Type::getInt32Ty(VMContext), (unsigned)VK),
+    ConstantInt::get(Type::getInt32Ty(VMContext), VIndex),
+    VTableHolder,
+    ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
+    ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
+    Fn
+  };
+  MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
+
+  // Create a named metadata so that we do not lose this mdnode.
+  NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp");
+  NMD->addOperand(Node);
+  return DISubprogram(Node);
+}
+
+/// CreateNameSpace - This creates new descriptor for a namespace
+/// with the specified parent scope.
+DINameSpace DIBuilder::CreateNameSpace(DIDescriptor Scope, StringRef Name,
+                                       DIFile File, unsigned LineNo) {
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_namespace),
+    Scope,
+    MDString::get(VMContext, Name),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
+  };
+  return DINameSpace(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+DILexicalBlock DIBuilder::CreateLexicalBlock(DIDescriptor Scope, DIFile File,
+                                             unsigned Line, unsigned Col) {
+  // Defeat MDNode uniqing for lexical blocks by using unique id.
+  static unsigned int unique_id = 0;
+  Value *Elts[] = {
+    GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block),
+    Scope,
+    ConstantInt::get(Type::getInt32Ty(VMContext), Line),
+    ConstantInt::get(Type::getInt32Ty(VMContext), Col),
+    File,
+    ConstantInt::get(Type::getInt32Ty(VMContext), unique_id++)
+  };
+  return DILexicalBlock(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
+}
+
+/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
+Instruction *DIBuilder::InsertDeclare(Value *Storage, DIVariable VarInfo,
+                                      Instruction *InsertBefore) {
+  assert(Storage && "no storage passed to dbg.declare");
+  assert(VarInfo.Verify() && "empty DIVariable passed to dbg.declare");
+  if (!DeclareFn)
+    DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
+
+  Value *Args[] = { MDNode::get(Storage->getContext(), &Storage, 1), VarInfo };
+  return CallInst::Create(DeclareFn, Args, Args+2, "", InsertBefore);
+}
+
+/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
+Instruction *DIBuilder::InsertDeclare(Value *Storage, DIVariable VarInfo,
+                                      BasicBlock *InsertAtEnd) {
+  assert(Storage && "no storage passed to dbg.declare");
+  assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.declare");
+  if (!DeclareFn)
+    DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
+
+  Value *Args[] = { MDNode::get(Storage->getContext(), &Storage, 1), VarInfo };
+
+  // If this block already has a terminator then insert this intrinsic
+  // before the terminator.
+  if (TerminatorInst *T = InsertAtEnd->getTerminator())
+    return CallInst::Create(DeclareFn, Args, Args+2, "", T);
+  else
+    return CallInst::Create(DeclareFn, Args, Args+2, "", InsertAtEnd);
+}
+
+/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
+Instruction *DIBuilder::InsertDbgValueIntrinsic(Value *V, uint64_t Offset,
+                                                DIVariable VarInfo,
+                                                Instruction *InsertBefore) {
+  assert(V && "no value passed to dbg.value");
+  assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
+  if (!ValueFn)
+    ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
+
+  Value *Args[] = { MDNode::get(V->getContext(), &V, 1),
+                    ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
+                    VarInfo };
+  return CallInst::Create(ValueFn, Args, Args+3, "", InsertBefore);
+}
+
+/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
+Instruction *DIBuilder::InsertDbgValueIntrinsic(Value *V, uint64_t Offset,
+                                                DIVariable VarInfo,
+                                                BasicBlock *InsertAtEnd) {
+  assert(V && "no value passed to dbg.value");
+  assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
+  if (!ValueFn)
+    ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
+
+  Value *Args[] = { MDNode::get(V->getContext(), &V, 1),
+                    ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
+                    VarInfo };
+  return CallInst::Create(ValueFn, Args, Args+3, "", InsertAtEnd);
+}
+
author	dim <dim@FreeBSD.org>	2011-02-20 12:57:14 +0000
committer	dim <dim@FreeBSD.org>	2011-02-20 12:57:14 +0000
commit	cbb70ce070d220642b038ea101d9c0f9fbf860d6 (patch)
tree	d2b61ce94e654cb01a254d2195259db5f9cc3f3c /lib/Analysis/DIBuilder.cpp
parent	4ace901e87dac5bbbac78ed325e75462e48e386e (diff)
download	FreeBSD-src-cbb70ce070d220642b038ea101d9c0f9fbf860d6.zip FreeBSD-src-cbb70ce070d220642b038ea101d9c0f9fbf860d6.tar.gz