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llvm-mirror/bindings/go/llvm/DIBuilderBindings.cpp
Peter Collingbourne 5b721561aa DI: Reverse direction of subprogram -> function edge.
Previously, subprograms contained a metadata reference to the function they
described. Because most clients need to get or set a subprogram for a given
function rather than the other way around, this created unneeded inefficiency.

For example, many passes needed to call the function llvm::makeSubprogramMap()
to build a mapping from functions to subprograms, and the IR linker needed to
fix up function references in a way that caused quadratic complexity in the IR
linking phase of LTO.

This change reverses the direction of the edge by storing the subprogram as
function-level metadata and removing DISubprogram's function field.

Since this is an IR change, a bitcode upgrade has been provided.

Fixes PR23367. An upgrade script for textual IR for out-of-tree clients is
attached to the PR.

Differential Revision: http://reviews.llvm.org/D14265

llvm-svn: 252219
2015-11-05 22:03:56 +00:00

254 lines
11 KiB
C++

//===- DIBuilderBindings.cpp - Bindings for DIBuilder ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines C bindings for the DIBuilder class.
//
//===----------------------------------------------------------------------===//
#include "DIBuilderBindings.h"
#include "IRBindings.h"
#include "llvm/IR/DIBuilder.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Module.h"
using namespace llvm;
DEFINE_SIMPLE_CONVERSION_FUNCTIONS(DIBuilder, LLVMDIBuilderRef)
LLVMDIBuilderRef LLVMNewDIBuilder(LLVMModuleRef mref) {
Module *m = unwrap(mref);
return wrap(new DIBuilder(*m));
}
void LLVMDIBuilderDestroy(LLVMDIBuilderRef dref) {
DIBuilder *d = unwrap(dref);
delete d;
}
void LLVMDIBuilderFinalize(LLVMDIBuilderRef dref) { unwrap(dref)->finalize(); }
LLVMMetadataRef LLVMDIBuilderCreateCompileUnit(LLVMDIBuilderRef Dref,
unsigned Lang, const char *File,
const char *Dir,
const char *Producer,
int Optimized, const char *Flags,
unsigned RuntimeVersion) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createCompileUnit(Lang, File, Dir, Producer, Optimized, Flags,
RuntimeVersion));
}
LLVMMetadataRef LLVMDIBuilderCreateFile(LLVMDIBuilderRef Dref, const char *File,
const char *Dir) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createFile(File, Dir));
}
LLVMMetadataRef LLVMDIBuilderCreateLexicalBlock(LLVMDIBuilderRef Dref,
LLVMMetadataRef Scope,
LLVMMetadataRef File,
unsigned Line,
unsigned Column) {
DIBuilder *D = unwrap(Dref);
auto *LB = D->createLexicalBlock(unwrap<DILocalScope>(Scope),
unwrap<DIFile>(File), Line, Column);
return wrap(LB);
}
LLVMMetadataRef LLVMDIBuilderCreateLexicalBlockFile(LLVMDIBuilderRef Dref,
LLVMMetadataRef Scope,
LLVMMetadataRef File,
unsigned Discriminator) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createLexicalBlockFile(unwrap<DILocalScope>(Scope),
unwrap<DIFile>(File), Discriminator));
}
LLVMMetadataRef LLVMDIBuilderCreateFunction(
LLVMDIBuilderRef Dref, LLVMMetadataRef Scope, const char *Name,
const char *LinkageName, LLVMMetadataRef File, unsigned Line,
LLVMMetadataRef CompositeType, int IsLocalToUnit, int IsDefinition,
unsigned ScopeLine, unsigned Flags, int IsOptimized) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createFunction(unwrap<DIScope>(Scope), Name, LinkageName,
File ? unwrap<DIFile>(File) : nullptr, Line,
unwrap<DISubroutineType>(CompositeType),
IsLocalToUnit, IsDefinition, ScopeLine, Flags,
IsOptimized));
}
LLVMMetadataRef
LLVMDIBuilderCreateAutoVariable(LLVMDIBuilderRef Dref, LLVMMetadataRef Scope,
const char *Name, LLVMMetadataRef File,
unsigned Line, LLVMMetadataRef Ty,
int AlwaysPreserve, unsigned Flags) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createAutoVariable(unwrap<DIScope>(Scope), Name,
unwrap<DIFile>(File), Line,
unwrap<DIType>(Ty), AlwaysPreserve, Flags));
}
LLVMMetadataRef LLVMDIBuilderCreateParameterVariable(
LLVMDIBuilderRef Dref, LLVMMetadataRef Scope, const char *Name,
unsigned ArgNo, LLVMMetadataRef File, unsigned Line, LLVMMetadataRef Ty,
int AlwaysPreserve, unsigned Flags) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createParameterVariable(
unwrap<DIScope>(Scope), Name, ArgNo, unwrap<DIFile>(File), Line,
unwrap<DIType>(Ty), AlwaysPreserve, Flags));
}
LLVMMetadataRef LLVMDIBuilderCreateBasicType(LLVMDIBuilderRef Dref,
const char *Name,
uint64_t SizeInBits,
uint64_t AlignInBits,
unsigned Encoding) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createBasicType(Name, SizeInBits, AlignInBits, Encoding));
}
LLVMMetadataRef LLVMDIBuilderCreatePointerType(LLVMDIBuilderRef Dref,
LLVMMetadataRef PointeeType,
uint64_t SizeInBits,
uint64_t AlignInBits,
const char *Name) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createPointerType(unwrap<DIType>(PointeeType), SizeInBits,
AlignInBits, Name));
}
LLVMMetadataRef
LLVMDIBuilderCreateSubroutineType(LLVMDIBuilderRef Dref, LLVMMetadataRef File,
LLVMMetadataRef ParameterTypes) {
DIBuilder *D = unwrap(Dref);
return wrap(
D->createSubroutineType(DITypeRefArray(unwrap<MDTuple>(ParameterTypes))));
}
LLVMMetadataRef LLVMDIBuilderCreateStructType(
LLVMDIBuilderRef Dref, LLVMMetadataRef Scope, const char *Name,
LLVMMetadataRef File, unsigned Line, uint64_t SizeInBits,
uint64_t AlignInBits, unsigned Flags, LLVMMetadataRef DerivedFrom,
LLVMMetadataRef ElementTypes) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createStructType(
unwrap<DIScope>(Scope), Name, File ? unwrap<DIFile>(File) : nullptr, Line,
SizeInBits, AlignInBits, Flags,
DerivedFrom ? unwrap<DIType>(DerivedFrom) : nullptr,
ElementTypes ? DINodeArray(unwrap<MDTuple>(ElementTypes)) : nullptr));
}
LLVMMetadataRef LLVMDIBuilderCreateReplaceableCompositeType(
LLVMDIBuilderRef Dref, unsigned Tag, const char *Name,
LLVMMetadataRef Scope, LLVMMetadataRef File, unsigned Line,
unsigned RuntimeLang, uint64_t SizeInBits, uint64_t AlignInBits,
unsigned Flags) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createReplaceableCompositeType(
Tag, Name, unwrap<DIScope>(Scope), File ? unwrap<DIFile>(File) : nullptr,
Line, RuntimeLang, SizeInBits, AlignInBits, Flags));
}
LLVMMetadataRef
LLVMDIBuilderCreateMemberType(LLVMDIBuilderRef Dref, LLVMMetadataRef Scope,
const char *Name, LLVMMetadataRef File,
unsigned Line, uint64_t SizeInBits,
uint64_t AlignInBits, uint64_t OffsetInBits,
unsigned Flags, LLVMMetadataRef Ty) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createMemberType(
unwrap<DIScope>(Scope), Name, File ? unwrap<DIFile>(File) : nullptr, Line,
SizeInBits, AlignInBits, OffsetInBits, Flags, unwrap<DIType>(Ty)));
}
LLVMMetadataRef LLVMDIBuilderCreateArrayType(LLVMDIBuilderRef Dref,
uint64_t SizeInBits,
uint64_t AlignInBits,
LLVMMetadataRef ElementType,
LLVMMetadataRef Subscripts) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createArrayType(SizeInBits, AlignInBits,
unwrap<DIType>(ElementType),
DINodeArray(unwrap<MDTuple>(Subscripts))));
}
LLVMMetadataRef LLVMDIBuilderCreateTypedef(LLVMDIBuilderRef Dref,
LLVMMetadataRef Ty, const char *Name,
LLVMMetadataRef File, unsigned Line,
LLVMMetadataRef Context) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createTypedef(unwrap<DIType>(Ty), Name,
File ? unwrap<DIFile>(File) : nullptr, Line,
Context ? unwrap<DIScope>(Context) : nullptr));
}
LLVMMetadataRef LLVMDIBuilderGetOrCreateSubrange(LLVMDIBuilderRef Dref,
int64_t Lo, int64_t Count) {
DIBuilder *D = unwrap(Dref);
return wrap(D->getOrCreateSubrange(Lo, Count));
}
LLVMMetadataRef LLVMDIBuilderGetOrCreateArray(LLVMDIBuilderRef Dref,
LLVMMetadataRef *Data,
size_t Length) {
DIBuilder *D = unwrap(Dref);
Metadata **DataValue = unwrap(Data);
ArrayRef<Metadata *> Elements(DataValue, Length);
DINodeArray A = D->getOrCreateArray(Elements);
return wrap(A.get());
}
LLVMMetadataRef LLVMDIBuilderGetOrCreateTypeArray(LLVMDIBuilderRef Dref,
LLVMMetadataRef *Data,
size_t Length) {
DIBuilder *D = unwrap(Dref);
Metadata **DataValue = unwrap(Data);
ArrayRef<Metadata *> Elements(DataValue, Length);
DITypeRefArray A = D->getOrCreateTypeArray(Elements);
return wrap(A.get());
}
LLVMMetadataRef LLVMDIBuilderCreateExpression(LLVMDIBuilderRef Dref,
int64_t *Addr, size_t Length) {
DIBuilder *D = unwrap(Dref);
return wrap(D->createExpression(ArrayRef<int64_t>(Addr, Length)));
}
LLVMValueRef LLVMDIBuilderInsertDeclareAtEnd(LLVMDIBuilderRef Dref,
LLVMValueRef Storage,
LLVMMetadataRef VarInfo,
LLVMMetadataRef Expr,
LLVMBasicBlockRef Block) {
// Fail immediately here until the llgo folks update their bindings. The
// called function is going to assert out anyway.
llvm_unreachable("DIBuilder API change requires a DebugLoc");
DIBuilder *D = unwrap(Dref);
Instruction *Instr = D->insertDeclare(
unwrap(Storage), unwrap<DILocalVariable>(VarInfo),
unwrap<DIExpression>(Expr), /* DebugLoc */ nullptr, unwrap(Block));
return wrap(Instr);
}
LLVMValueRef LLVMDIBuilderInsertValueAtEnd(LLVMDIBuilderRef Dref,
LLVMValueRef Val, uint64_t Offset,
LLVMMetadataRef VarInfo,
LLVMMetadataRef Expr,
LLVMBasicBlockRef Block) {
// Fail immediately here until the llgo folks update their bindings. The
// called function is going to assert out anyway.
llvm_unreachable("DIBuilder API change requires a DebugLoc");
DIBuilder *D = unwrap(Dref);
Instruction *Instr = D->insertDbgValueIntrinsic(
unwrap(Val), Offset, unwrap<DILocalVariable>(VarInfo),
unwrap<DIExpression>(Expr), /* DebugLoc */ nullptr, unwrap(Block));
return wrap(Instr);
}