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llvm-mirror/bindings/go/llvm/DIBuilderBindings.h
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

147 lines
6.6 KiB
C++

//===- DIBuilderBindings.h - Bindings for DIBuilder -------------*- C++ -*-===//
//
// 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.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_BINDINGS_GO_LLVM_DIBUILDERBINDINGS_H
#define LLVM_BINDINGS_GO_LLVM_DIBUILDERBINDINGS_H
#include "IRBindings.h"
#include "llvm-c/Core.h"
#ifdef __cplusplus
extern "C" {
#endif
// FIXME: These bindings shouldn't be Go-specific and should eventually move to
// a (somewhat) less stable collection of C APIs for use in creating bindings of
// LLVM in other languages.
typedef struct LLVMOpaqueDIBuilder *LLVMDIBuilderRef;
LLVMDIBuilderRef LLVMNewDIBuilder(LLVMModuleRef m);
void LLVMDIBuilderDestroy(LLVMDIBuilderRef d);
void LLVMDIBuilderFinalize(LLVMDIBuilderRef d);
LLVMMetadataRef
LLVMDIBuilderCreateCompileUnit(LLVMDIBuilderRef D, unsigned Language,
const char *File, const char *Dir,
const char *Producer, int Optimized,
const char *Flags, unsigned RuntimeVersion);
LLVMMetadataRef LLVMDIBuilderCreateFile(LLVMDIBuilderRef D, const char *File,
const char *Dir);
LLVMMetadataRef LLVMDIBuilderCreateLexicalBlock(LLVMDIBuilderRef D,
LLVMMetadataRef Scope,
LLVMMetadataRef File,
unsigned Line, unsigned Column);
LLVMMetadataRef LLVMDIBuilderCreateLexicalBlockFile(LLVMDIBuilderRef D,
LLVMMetadataRef Scope,
LLVMMetadataRef File,
unsigned Discriminator);
LLVMMetadataRef LLVMDIBuilderCreateFunction(
LLVMDIBuilderRef D, LLVMMetadataRef Scope, const char *Name,
const char *LinkageName, LLVMMetadataRef File, unsigned Line,
LLVMMetadataRef CompositeType, int IsLocalToUnit, int IsDefinition,
unsigned ScopeLine, unsigned Flags, int IsOptimized);
LLVMMetadataRef
LLVMDIBuilderCreateAutoVariable(LLVMDIBuilderRef D, LLVMMetadataRef Scope,
const char *Name, LLVMMetadataRef File,
unsigned Line, LLVMMetadataRef Ty,
int AlwaysPreserve, unsigned Flags);
LLVMMetadataRef LLVMDIBuilderCreateParameterVariable(
LLVMDIBuilderRef D, LLVMMetadataRef Scope, const char *Name, unsigned ArgNo,
LLVMMetadataRef File, unsigned Line, LLVMMetadataRef Ty, int AlwaysPreserve,
unsigned Flags);
LLVMMetadataRef LLVMDIBuilderCreateBasicType(LLVMDIBuilderRef D,
const char *Name,
uint64_t SizeInBits,
uint64_t AlignInBits,
unsigned Encoding);
LLVMMetadataRef LLVMDIBuilderCreatePointerType(LLVMDIBuilderRef D,
LLVMMetadataRef PointeeType,
uint64_t SizeInBits,
uint64_t AlignInBits,
const char *Name);
LLVMMetadataRef
LLVMDIBuilderCreateSubroutineType(LLVMDIBuilderRef D, LLVMMetadataRef File,
LLVMMetadataRef ParameterTypes);
LLVMMetadataRef LLVMDIBuilderCreateStructType(
LLVMDIBuilderRef D, LLVMMetadataRef Scope, const char *Name,
LLVMMetadataRef File, unsigned Line, uint64_t SizeInBits,
uint64_t AlignInBits, unsigned Flags, LLVMMetadataRef DerivedFrom,
LLVMMetadataRef ElementTypes);
LLVMMetadataRef LLVMDIBuilderCreateReplaceableCompositeType(
LLVMDIBuilderRef D, unsigned Tag, const char *Name, LLVMMetadataRef Scope,
LLVMMetadataRef File, unsigned Line, unsigned RuntimeLang,
uint64_t SizeInBits, uint64_t AlignInBits, unsigned Flags);
LLVMMetadataRef
LLVMDIBuilderCreateMemberType(LLVMDIBuilderRef D, LLVMMetadataRef Scope,
const char *Name, LLVMMetadataRef File,
unsigned Line, uint64_t SizeInBits,
uint64_t AlignInBits, uint64_t OffsetInBits,
unsigned Flags, LLVMMetadataRef Ty);
LLVMMetadataRef LLVMDIBuilderCreateArrayType(LLVMDIBuilderRef D,
uint64_t SizeInBits,
uint64_t AlignInBits,
LLVMMetadataRef ElementType,
LLVMMetadataRef Subscripts);
LLVMMetadataRef LLVMDIBuilderCreateTypedef(LLVMDIBuilderRef D,
LLVMMetadataRef Ty, const char *Name,
LLVMMetadataRef File, unsigned Line,
LLVMMetadataRef Context);
LLVMMetadataRef LLVMDIBuilderGetOrCreateSubrange(LLVMDIBuilderRef D, int64_t Lo,
int64_t Count);
LLVMMetadataRef LLVMDIBuilderGetOrCreateArray(LLVMDIBuilderRef D,
LLVMMetadataRef *Data,
size_t Length);
LLVMMetadataRef LLVMDIBuilderGetOrCreateTypeArray(LLVMDIBuilderRef D,
LLVMMetadataRef *Data,
size_t Length);
LLVMMetadataRef LLVMDIBuilderCreateExpression(LLVMDIBuilderRef Dref,
int64_t *Addr, size_t Length);
LLVMValueRef LLVMDIBuilderInsertDeclareAtEnd(LLVMDIBuilderRef D,
LLVMValueRef Storage,
LLVMMetadataRef VarInfo,
LLVMMetadataRef Expr,
LLVMBasicBlockRef Block);
LLVMValueRef LLVMDIBuilderInsertValueAtEnd(LLVMDIBuilderRef D, LLVMValueRef Val,
uint64_t Offset,
LLVMMetadataRef VarInfo,
LLVMMetadataRef Expr,
LLVMBasicBlockRef Block);
#ifdef __cplusplus
} // extern "C"
#endif
#endif