6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-10 02:36:06 +00:00
Code Issues Projects Releases Wiki Activity

Non-functionality changes:

Browse Source 
- Reformatting.
- Use while() instead of do-while().
- Move simple constructors into .h file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71782 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2009-05-14 18:26:15 +00:00
parent e66b291240
commit dc817b6f42
2 changed files with 125 additions and 123 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
include/llvm/Analysis/DebugInfo.h
View File

@ -8,7 +8,9 @@
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// //
// This file defines a bunch of datatypes that are useful for creating and // This file defines a bunch of datatypes that are useful for creating and
// walking debug info in LLVM IR form. // walking debug info in LLVM IR form. They essentially provide wrappers around
// the information in the global variables that's needed when constructing the
// DWARF information.
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
@ -81,7 +83,8 @@ namespace llvm {
/// DIAnchor - A wrapper for various anchor descriptors. /// DIAnchor - A wrapper for various anchor descriptors.
class DIAnchor : public DIDescriptor { class DIAnchor : public DIDescriptor {
public: public:
explicit DIAnchor(GlobalVariable *GV = 0); explicit DIAnchor(GlobalVariable *GV = 0)
: DIDescriptor(GV, dwarf::DW_TAG_anchor) {}
unsigned getAnchorTag() const { return getUnsignedField(1); } unsigned getAnchorTag() const { return getUnsignedField(1); }
}; };
@ -89,7 +92,8 @@ namespace llvm {
/// DISubrange - This is used to represent ranges, for array bounds. /// DISubrange - This is used to represent ranges, for array bounds.
class DISubrange : public DIDescriptor { class DISubrange : public DIDescriptor {
public: public:
explicit DISubrange(GlobalVariable *GV = 0); explicit DISubrange(GlobalVariable *GV = 0)
: DIDescriptor(GV, dwarf::DW_TAG_subrange_type) {}
int64_t getLo() const { return (int64_t)getUInt64Field(1); } int64_t getLo() const { return (int64_t)getUInt64Field(1); }
int64_t getHi() const { return (int64_t)getUInt64Field(2); } int64_t getHi() const { return (int64_t)getUInt64Field(2); }
@ -109,7 +113,8 @@ namespace llvm {
/// DICompileUnit - A wrapper for a compile unit. /// DICompileUnit - A wrapper for a compile unit.
class DICompileUnit : public DIDescriptor { class DICompileUnit : public DIDescriptor {
public: public:
explicit DICompileUnit(GlobalVariable *GV = 0); explicit DICompileUnit(GlobalVariable *GV = 0)
: DIDescriptor(GV, dwarf::DW_TAG_compile_unit) {}
unsigned getLanguage() const { return getUnsignedField(2); } unsigned getLanguage() const { return getUnsignedField(2); }
const std::string &getFilename(std::string &F) const { const std::string &getFilename(std::string &F) const {
@ -150,7 +155,8 @@ namespace llvm {
/// type/precision or a file/line pair for location info. /// type/precision or a file/line pair for location info.
class DIEnumerator : public DIDescriptor { class DIEnumerator : public DIDescriptor {
public: public:
explicit DIEnumerator(GlobalVariable *GV = 0); explicit DIEnumerator(GlobalVariable *GV = 0)
: DIDescriptor(GV, dwarf::DW_TAG_enumerator) {}
const std::string &getName(std::string &F) const { const std::string &getName(std::string &F) const {
return getStringField(1, F); return getStringField(1, F);
@ -220,7 +226,9 @@ namespace llvm {
/// DIBasicType - A basic type, like 'int' or 'float'. /// DIBasicType - A basic type, like 'int' or 'float'.
class DIBasicType : public DIType { class DIBasicType : public DIType {
public: public:
explicit DIBasicType(GlobalVariable *GV); explicit DIBasicType(GlobalVariable *GV)
: DIType(GV, dwarf::DW_TAG_base_type) {}
unsigned getEncoding() const { return getUnsignedField(9); } unsigned getEncoding() const { return getUnsignedField(9); }
/// dump - print basic type. /// dump - print basic type.
@ -234,7 +242,12 @@ namespace llvm {
explicit DIDerivedType(GlobalVariable *GV, bool, bool) explicit DIDerivedType(GlobalVariable *GV, bool, bool)
: DIType(GV, true, true) {} : DIType(GV, true, true) {}
public: public:
explicit DIDerivedType(GlobalVariable *GV); explicit DIDerivedType(GlobalVariable *GV)
: DIType(GV, true, true) {
if (GV && !isDerivedType(getTag()))
GV = 0;
}
DIType getTypeDerivedFrom() const { return getFieldAs<DIType>(9); } DIType getTypeDerivedFrom() const { return getFieldAs<DIType>(9); }
/// getOriginalTypeSize - If this type is derived from a base type then /// getOriginalTypeSize - If this type is derived from a base type then
@ -249,7 +262,12 @@ namespace llvm {
/// FIXME: Why is this a DIDerivedType?? /// FIXME: Why is this a DIDerivedType??
class DICompositeType : public DIDerivedType { class DICompositeType : public DIDerivedType {
public: public:
explicit DICompositeType(GlobalVariable *GV); explicit DICompositeType(GlobalVariable *GV)
: DIDerivedType(GV, true, true) {
if (GV && !isCompositeType(getTag()))
GV = 0;
}
DIArray getTypeArray() const { return getFieldAs<DIArray>(10); } DIArray getTypeArray() const { return getFieldAs<DIArray>(10); }
unsigned getRunTimeLang() const { return getUnsignedField(11); } unsigned getRunTimeLang() const { return getUnsignedField(11); }
@ -307,7 +325,9 @@ namespace llvm {
/// DISubprogram - This is a wrapper for a subprogram (e.g. a function). /// DISubprogram - This is a wrapper for a subprogram (e.g. a function).
class DISubprogram : public DIGlobal { class DISubprogram : public DIGlobal {
public: public:
explicit DISubprogram(GlobalVariable *GV = 0); explicit DISubprogram(GlobalVariable *GV = 0)
: DIGlobal(GV, dwarf::DW_TAG_subprogram) {}
DICompositeType getType() const { return getFieldAs<DICompositeType>(8); } DICompositeType getType() const { return getFieldAs<DICompositeType>(8); }
/// Verify - Verify that a subprogram descriptor is well formed. /// Verify - Verify that a subprogram descriptor is well formed.
@ -324,7 +344,9 @@ namespace llvm {
/// DIGlobalVariable - This is a wrapper for a global variable. /// DIGlobalVariable - This is a wrapper for a global variable.
class DIGlobalVariable : public DIGlobal { class DIGlobalVariable : public DIGlobal {
public: public:
explicit DIGlobalVariable(GlobalVariable *GV = 0); explicit DIGlobalVariable(GlobalVariable *GV = 0)
: DIGlobal(GV, dwarf::DW_TAG_variable) {}
GlobalVariable *getGlobal() const { return getGlobalVariableField(11); } GlobalVariable *getGlobal() const { return getGlobalVariableField(11); }
/// Verify - Verify that a global variable descriptor is well formed. /// Verify - Verify that a global variable descriptor is well formed.
@ -338,7 +360,11 @@ namespace llvm {
/// global etc). /// global etc).
class DIVariable : public DIDescriptor { class DIVariable : public DIDescriptor {
public: public:
explicit DIVariable(GlobalVariable *GV = 0); explicit DIVariable(GlobalVariable *gv = 0)
: DIDescriptor(gv) {
if (gv && !isVariable(getTag()))
GV = 0;
}
DIDescriptor getContext() const { return getDescriptorField(1); } DIDescriptor getContext() const { return getDescriptorField(1); }
const std::string &getName(std::string &F) const { const std::string &getName(std::string &F) const {
@ -361,8 +387,9 @@ namespace llvm {
/// DIBlock - This is a wrapper for a block (e.g. a function, scope, etc). /// DIBlock - This is a wrapper for a block (e.g. a function, scope, etc).
class DIBlock : public DIDescriptor { class DIBlock : public DIDescriptor {
public: public:
explicit DIBlock(GlobalVariable *GV = 0); explicit DIBlock(GlobalVariable *GV = 0)
: DIDescriptor(GV, dwarf::DW_TAG_lexical_block) {}
DIDescriptor getContext() const { return getDescriptorField(1); } DIDescriptor getContext() const { return getDescriptorField(1); }
}; };

195
lib/Analysis/DebugInfo.cpp
View File

@ -22,6 +22,7 @@
#include "llvm/Analysis/ValueTracking.h" #include "llvm/Analysis/ValueTracking.h"
#include "llvm/Support/Dwarf.h" #include "llvm/Support/Dwarf.h"
#include "llvm/Support/Streams.h" #include "llvm/Support/Streams.h"
using namespace llvm; using namespace llvm;
using namespace llvm::dwarf; using namespace llvm::dwarf;
@ -60,10 +61,11 @@ bool DIDescriptor::ValidDebugInfo(Value *V, CodeGenOpt::Level OptLevel) {
assert(DISubprogram(GV).Verify() && "Invalid DebugInfo value"); assert(DISubprogram(GV).Verify() && "Invalid DebugInfo value");
break; break;
case DW_TAG_lexical_block: case DW_TAG_lexical_block:
/// FIXME. This interfers with the quality of generated code when // FIXME: This interfers with the quality of generated code during
/// during optimization. // optimization.
if (OptLevel != CodeGenOpt::None) if (OptLevel != CodeGenOpt::None)
return false; return false;
// FALLTHROUGH
default: default:
break; break;
} }
@ -74,7 +76,7 @@ bool DIDescriptor::ValidDebugInfo(Value *V, CodeGenOpt::Level OptLevel) {
DIDescriptor::DIDescriptor(GlobalVariable *gv, unsigned RequiredTag) { DIDescriptor::DIDescriptor(GlobalVariable *gv, unsigned RequiredTag) {
GV = gv; GV = gv;
// If this is non-null, check to see if the Tag matches. If not, set to null. // If this is non-null, check to see if the Tag matches. If not, set to null.
if (GV && getTag() != RequiredTag) if (GV && getTag() != RequiredTag)
GV = 0; GV = 0;
} }
@ -91,7 +93,7 @@ DIDescriptor::getStringField(unsigned Elt, std::string &Result) const {
Result.clear(); Result.clear();
return Result; return Result;
} }
// Fills in the string if it succeeds // Fills in the string if it succeeds
if (!GetConstantStringInfo(C->getOperand(Elt), Result)) if (!GetConstantStringInfo(C->getOperand(Elt), Result))
Result.clear(); Result.clear();
@ -101,9 +103,11 @@ DIDescriptor::getStringField(unsigned Elt, std::string &Result) const {
uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const { uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
if (GV == 0) return 0; if (GV == 0) return 0;
Constant *C = GV->getInitializer(); Constant *C = GV->getInitializer();
if (C == 0 || Elt >= C->getNumOperands()) if (C == 0 || Elt >= C->getNumOperands())
return 0; return 0;
if (ConstantInt *CI = dyn_cast<ConstantInt>(C->getOperand(Elt))) if (ConstantInt *CI = dyn_cast<ConstantInt>(C->getOperand(Elt)))
return CI->getZExtValue(); return CI->getZExtValue();
return 0; return 0;
@ -111,46 +115,31 @@ uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
DIDescriptor DIDescriptor::getDescriptorField(unsigned Elt) const { DIDescriptor DIDescriptor::getDescriptorField(unsigned Elt) const {
if (GV == 0) return DIDescriptor(); if (GV == 0) return DIDescriptor();
Constant *C = GV->getInitializer(); Constant *C = GV->getInitializer();
if (C == 0 || Elt >= C->getNumOperands()) if (C == 0 || Elt >= C->getNumOperands())
return DIDescriptor(); return DIDescriptor();
C = C->getOperand(Elt); C = C->getOperand(Elt);
return DIDescriptor(dyn_cast<GlobalVariable>(C->stripPointerCasts())); return DIDescriptor(dyn_cast<GlobalVariable>(C->stripPointerCasts()));
} }
GlobalVariable *DIDescriptor::getGlobalVariableField(unsigned Elt) const { GlobalVariable *DIDescriptor::getGlobalVariableField(unsigned Elt) const {
if (GV == 0) return 0; if (GV == 0) return 0;
Constant *C = GV->getInitializer(); Constant *C = GV->getInitializer();
if (C == 0 || Elt >= C->getNumOperands()) if (C == 0 || Elt >= C->getNumOperands())
return 0; return 0;
C = C->getOperand(Elt); C = C->getOperand(Elt);
return dyn_cast<GlobalVariable>(C->stripPointerCasts()); return dyn_cast<GlobalVariable>(C->stripPointerCasts());
} }
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// Simple Descriptor Constructors and other Methods // Simple Descriptor Constructors and other Methods
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
DIAnchor::DIAnchor(GlobalVariable *GV) // Needed by DIVariable::getType().
: DIDescriptor(GV, dwarf::DW_TAG_anchor) {}
DIEnumerator::DIEnumerator(GlobalVariable *GV)
: DIDescriptor(GV, dwarf::DW_TAG_enumerator) {}
DISubrange::DISubrange(GlobalVariable *GV)
: DIDescriptor(GV, dwarf::DW_TAG_subrange_type) {}
DICompileUnit::DICompileUnit(GlobalVariable *GV)
: DIDescriptor(GV, dwarf::DW_TAG_compile_unit) {}
DIBasicType::DIBasicType(GlobalVariable *GV)
: DIType(GV, dwarf::DW_TAG_base_type) {}
DISubprogram::DISubprogram(GlobalVariable *GV)
: DIGlobal(GV, dwarf::DW_TAG_subprogram) {}
DIGlobalVariable::DIGlobalVariable(GlobalVariable *GV)
: DIGlobal(GV, dwarf::DW_TAG_variable) {}
DIBlock::DIBlock(GlobalVariable *GV)
: DIDescriptor(GV, dwarf::DW_TAG_lexical_block) {}
// needed by DIVariable::getType()
DIType::DIType(GlobalVariable *gv) : DIDescriptor(gv) { DIType::DIType(GlobalVariable *gv) : DIDescriptor(gv) {
if (!gv) return; if (!gv) return;
unsigned tag = getTag(); unsigned tag = getTag();
@ -179,11 +168,6 @@ bool DIType::isDerivedType(unsigned Tag) {
} }
} }
DIDerivedType::DIDerivedType(GlobalVariable *GV) : DIType(GV, true, true) {
if (GV && !isDerivedType(getTag()))
GV = 0;
}
/// isCompositeType - Return true if the specified tag is legal for /// isCompositeType - Return true if the specified tag is legal for
/// DICompositeType. /// DICompositeType.
bool DIType::isCompositeType(unsigned TAG) { bool DIType::isCompositeType(unsigned TAG) {
@ -201,12 +185,6 @@ bool DIType::isCompositeType(unsigned TAG) {
} }
} }
DICompositeType::DICompositeType(GlobalVariable *GV)
: DIDerivedType(GV, true, true) {
if (GV && !isCompositeType(getTag()))
GV = 0;
}
/// isVariable - Return true if the specified tag is legal for DIVariable. /// isVariable - Return true if the specified tag is legal for DIVariable.
bool DIVariable::isVariable(unsigned Tag) { bool DIVariable::isVariable(unsigned Tag) {
switch (Tag) { switch (Tag) {
@ -219,11 +197,6 @@ bool DIVariable::isVariable(unsigned Tag) {
} }
} }
DIVariable::DIVariable(GlobalVariable *gv) : DIDescriptor(gv) {
if (gv && !isVariable(getTag()))
GV = 0;
}
unsigned DIArray::getNumElements() const { unsigned DIArray::getNumElements() const {
assert (GV && "Invalid DIArray"); assert (GV && "Invalid DIArray");
Constant *C = GV->getInitializer(); Constant *C = GV->getInitializer();
@ -351,8 +324,9 @@ bool DISubprogram::describes(const Function *F) {
// DIFactory: Basic Helpers // DIFactory: Basic Helpers
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
DIFactory::DIFactory(Module &m) : M(m) { DIFactory::DIFactory(Module &m)
StopPointFn = FuncStartFn = RegionStartFn = RegionEndFn = DeclareFn = 0; : M(m), StopPointFn(0), FuncStartFn(0), RegionStartFn(0), RegionEndFn(0),
DeclareFn(0) {
EmptyStructPtr = PointerType::getUnqual(StructType::get(NULL, NULL)); EmptyStructPtr = PointerType::getUnqual(StructType::get(NULL, NULL));
} }
@ -809,8 +783,7 @@ void DIFactory::InsertStopPoint(DICompileUnit CU, unsigned LineNo,
void DIFactory::InsertSubprogramStart(DISubprogram SP, BasicBlock *BB) { void DIFactory::InsertSubprogramStart(DISubprogram SP, BasicBlock *BB) {
// Lazily construct llvm.dbg.func.start. // Lazily construct llvm.dbg.func.start.
if (!FuncStartFn) if (!FuncStartFn)
FuncStartFn = llvm::Intrinsic::getDeclaration(&M, FuncStartFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_func_start);
llvm::Intrinsic::dbg_func_start);
// Call llvm.dbg.func.start which also implicitly sets a stoppoint. // Call llvm.dbg.func.start which also implicitly sets a stoppoint.
CallInst::Create(FuncStartFn, getCastToEmpty(SP), "", BB); CallInst::Create(FuncStartFn, getCastToEmpty(SP), "", BB);
@ -821,100 +794,99 @@ void DIFactory::InsertSubprogramStart(DISubprogram SP, BasicBlock *BB) {
void DIFactory::InsertRegionStart(DIDescriptor D, BasicBlock *BB) { void DIFactory::InsertRegionStart(DIDescriptor D, BasicBlock *BB) {
// Lazily construct llvm.dbg.region.start function. // Lazily construct llvm.dbg.region.start function.
if (!RegionStartFn) if (!RegionStartFn)
RegionStartFn = llvm::Intrinsic::getDeclaration(&M, RegionStartFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_region_start);
llvm::Intrinsic::dbg_region_start);
// Call llvm.dbg.func.start. // Call llvm.dbg.func.start.
CallInst::Create(RegionStartFn, getCastToEmpty(D), "", BB); CallInst::Create(RegionStartFn, getCastToEmpty(D), "", BB);
} }
/// InsertRegionEnd - Insert a new llvm.dbg.region.end intrinsic call to /// InsertRegionEnd - Insert a new llvm.dbg.region.end intrinsic call to
/// mark the end of a region for the specified scoping descriptor. /// mark the end of a region for the specified scoping descriptor.
void DIFactory::InsertRegionEnd(DIDescriptor D, BasicBlock *BB) { void DIFactory::InsertRegionEnd(DIDescriptor D, BasicBlock *BB) {
// Lazily construct llvm.dbg.region.end function. // Lazily construct llvm.dbg.region.end function.
if (!RegionEndFn) if (!RegionEndFn)
RegionEndFn = llvm::Intrinsic::getDeclaration(&M, RegionEndFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_region_end);
llvm::Intrinsic::dbg_region_end);
// Call llvm.dbg.region.end.
CallInst::Create(RegionEndFn, getCastToEmpty(D), "", BB); CallInst::Create(RegionEndFn, getCastToEmpty(D), "", BB);
} }
/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call. /// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call.
void DIFactory::InsertDeclare(llvm::Value *Storage, DIVariable D, void DIFactory::InsertDeclare(Value *Storage, DIVariable D, BasicBlock *BB) {
BasicBlock *BB) {
// Cast the storage to a {}* for the call to llvm.dbg.declare. // Cast the storage to a {}* for the call to llvm.dbg.declare.
Storage = new llvm::BitCastInst(Storage, EmptyStructPtr, "", BB); Storage = new BitCastInst(Storage, EmptyStructPtr, "", BB);
if (!DeclareFn) if (!DeclareFn)
DeclareFn = llvm::Intrinsic::getDeclaration(&M, DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
llvm::Intrinsic::dbg_declare);
Value *Args[] = { Storage, getCastToEmpty(D) }; Value *Args[] = { Storage, getCastToEmpty(D) };
CallInst::Create(DeclareFn, Args, Args+2, "", BB); CallInst::Create(DeclareFn, Args, Args+2, "", BB);
} }
namespace llvm { namespace llvm {
/// Finds the stoppoint coressponding to this instruction, that is the /// findStopPoint - Find the stoppoint coressponding to this instruction, that
/// stoppoint that dominates this instruction /// is the stoppoint that dominates this instruction.
const DbgStopPointInst *findStopPoint(const Instruction *Inst) const DbgStopPointInst *findStopPoint(const Instruction *Inst) {
{
if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(Inst)) if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(Inst))
return DSI; return DSI;
const BasicBlock *BB = Inst->getParent(); const BasicBlock *BB = Inst->getParent();
BasicBlock::const_iterator I = Inst, B; BasicBlock::const_iterator I = Inst, B;
do { while (BB) {
B = BB->begin(); B = BB->begin();
// A BB consisting only of a terminator can't have a stoppoint. // A BB consisting only of a terminator can't have a stoppoint.
if (I != B) { while (I != B) {
do { --I;
--I; if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(I))
if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(I)) return DSI;
return DSI;
} while (I != B);
} }
// This BB didn't have a stoppoint: if there is only one
// predecessor, look for a stoppoint there. // This BB didn't have a stoppoint: if there is only one predecessor, look
// We could use getIDom(), but that would require dominator info. // for a stoppoint there. We could use getIDom(), but that would require
// dominator info.
BB = I->getParent()->getUniquePredecessor(); BB = I->getParent()->getUniquePredecessor();
if (BB) if (BB)
I = BB->getTerminator(); I = BB->getTerminator();
} while (BB != 0); }
return 0; return 0;
} }
/// Finds the stoppoint corresponding to first real (non-debug intrinsic) /// findBBStopPoint - Find the stoppoint corresponding to first real
/// instruction in this Basic Block, and returns the stoppoint for it. /// (non-debug intrinsic) instruction in this Basic Block, and return the
const DbgStopPointInst *findBBStopPoint(const BasicBlock *BB) /// stoppoint for it.
{ const DbgStopPointInst *findBBStopPoint(const BasicBlock *BB) {
for(BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I) { for(BasicBlock::const_iterator I = BB->begin(), E = BB->end(); I != E; ++I)
if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(I)) if (const DbgStopPointInst *DSI = dyn_cast<DbgStopPointInst>(I))
return DSI; return DSI;
}
// Fallback to looking for stoppoint of unique predecessor. // Fallback to looking for stoppoint of unique predecessor. Useful if this
// Useful if this BB contains no stoppoints, but unique predecessor does. // BB contains no stoppoints, but unique predecessor does.
BB = BB->getUniquePredecessor(); BB = BB->getUniquePredecessor();
if (BB) if (BB)
return findStopPoint(BB->getTerminator()); return findStopPoint(BB->getTerminator());
return 0; return 0;
} }
Value *findDbgGlobalDeclare(GlobalVariable *V) Value *findDbgGlobalDeclare(GlobalVariable *V) {
{
const Module *M = V->getParent(); const Module *M = V->getParent();
const Type *Ty = M->getTypeByName("llvm.dbg.global_variable.type"); const Type *Ty = M->getTypeByName("llvm.dbg.global_variable.type");
if (!Ty) if (!Ty) return 0;
return 0;
Ty = PointerType::get(Ty, 0); Ty = PointerType::get(Ty, 0);
Value *Val = V->stripPointerCasts(); Value *Val = V->stripPointerCasts();
for (Value::use_iterator I = Val->use_begin(), E =Val->use_end(); for (Value::use_iterator I = Val->use_begin(), E = Val->use_end();
I != E; ++I) { I != E; ++I) {
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(I)) { if (ConstantExpr *CE = dyn_cast<ConstantExpr>(I)) {
if (CE->getOpcode() == Instruction::BitCast) { if (CE->getOpcode() == Instruction::BitCast) {
Value *VV = CE; Value *VV = CE;
while (VV->hasOneUse()) {
while (VV->hasOneUse())
VV = *VV->use_begin(); VV = *VV->use_begin();
}
if (VV->getType() == Ty) if (VV->getType() == Ty)
return VV; return VV;
} }
@ -923,57 +895,60 @@ namespace llvm {
if (Val->getType() == Ty) if (Val->getType() == Ty)
return Val; return Val;
return 0; return 0;
} }
/// Finds the dbg.declare intrinsic corresponding to this value if any. /// Finds the llvm.dbg.declare intrinsic corresponding to this value if any.
/// It looks through pointer casts too. /// It looks through pointer casts too.
const DbgDeclareInst *findDbgDeclare(const Value *V, bool stripCasts) const DbgDeclareInst *findDbgDeclare(const Value *V, bool stripCasts) {
{
if (stripCasts) { if (stripCasts) {
V = V->stripPointerCasts(); V = V->stripPointerCasts();
// Look for the bitcast. // Look for the bitcast.
for (Value::use_const_iterator I = V->use_begin(), E =V->use_end(); for (Value::use_const_iterator I = V->use_begin(), E =V->use_end();
I != E; ++I) { I != E; ++I)
if (isa<BitCastInst>(I)) if (isa<BitCastInst>(I))
return findDbgDeclare(*I, false); return findDbgDeclare(*I, false);
}
return 0; return 0;
} }
// Find dbg.declare among uses of the instruction. // Find llvm.dbg.declare among uses of the instruction.
for (Value::use_const_iterator I = V->use_begin(), E =V->use_end(); for (Value::use_const_iterator I = V->use_begin(), E =V->use_end();
I != E; ++I) { I != E; ++I)
if (const DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(I)) if (const DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(I))
return DDI; return DDI;
}
return 0; return 0;
} }
bool getLocationInfo(const Value *V, std::string &DisplayName, std::string &Type, bool getLocationInfo(const Value *V, std::string &DisplayName,
unsigned &LineNo, std::string &File, std::string &Dir) std::string &Type, unsigned &LineNo, std::string &File,
{ std::string &Dir) {
DICompileUnit Unit; DICompileUnit Unit;
DIType TypeD; DIType TypeD;
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(const_cast<Value*>(V))) { if (GlobalVariable *GV = dyn_cast<GlobalVariable>(const_cast<Value*>(V))) {
Value *DIGV = findDbgGlobalDeclare(GV); Value *DIGV = findDbgGlobalDeclare(GV);
if (!DIGV) if (!DIGV) return false;
return false;
DIGlobalVariable Var(cast<GlobalVariable>(DIGV)); DIGlobalVariable Var(cast<GlobalVariable>(DIGV));
Var.getDisplayName(DisplayName); Var.getDisplayName(DisplayName);
LineNo = Var.getLineNumber(); LineNo = Var.getLineNumber();
Unit = Var.getCompileUnit(); Unit = Var.getCompileUnit();
TypeD = Var.getType(); TypeD = Var.getType();
} else { } else {
const DbgDeclareInst *DDI = findDbgDeclare(V); const DbgDeclareInst *DDI = findDbgDeclare(V);
if (!DDI) if (!DDI) return false;
return false;
DIVariable Var(cast<GlobalVariable>(DDI->getVariable())); DIVariable Var(cast<GlobalVariable>(DDI->getVariable()));
Var.getName(DisplayName); Var.getName(DisplayName);
LineNo = Var.getLineNumber(); LineNo = Var.getLineNumber();
Unit = Var.getCompileUnit(); Unit = Var.getCompileUnit();
TypeD = Var.getType(); TypeD = Var.getType();
} }
TypeD.getName(Type); TypeD.getName(Type);
Unit.getFilename(File); Unit.getFilename(File);
Unit.getDirectory(Dir); Unit.getDirectory(Dir);
@ -981,13 +956,13 @@ namespace llvm {
} }
} }
/// dump - print descriptor. /// dump - Print descriptor.
void DIDescriptor::dump() const { void DIDescriptor::dump() const {
cerr << "[" << dwarf::TagString(getTag()) << "] "; cerr << "[" << dwarf::TagString(getTag()) << "] ";
cerr << std::hex << "[GV:" << GV << "]" << std::dec; cerr << std::hex << "[GV:" << GV << "]" << std::dec;
} }
/// dump - print compile unit. /// dump - Print compile unit.
void DICompileUnit::dump() const { void DICompileUnit::dump() const {
if (getLanguage()) if (getLanguage())
cerr << " [" << dwarf::LanguageString(getLanguage()) << "] "; cerr << " [" << dwarf::LanguageString(getLanguage()) << "] ";
@ -996,7 +971,7 @@ void DICompileUnit::dump() const {
cerr << " [" << getDirectory(Res1) << "/" << getFilename(Res2) << " ]"; cerr << " [" << getDirectory(Res1) << "/" << getFilename(Res2) << " ]";
} }
/// dump - print type. /// dump - Print type.
void DIType::dump() const { void DIType::dump() const {
if (isNull()) return; if (isNull()) return;
@ -1038,17 +1013,17 @@ void DIType::dump() const {
cerr << "\n"; cerr << "\n";
} }
/// dump - print basic type. /// dump - Print basic type.
void DIBasicType::dump() const { void DIBasicType::dump() const {
cerr << " [" << dwarf::AttributeEncodingString(getEncoding()) << "] "; cerr << " [" << dwarf::AttributeEncodingString(getEncoding()) << "] ";
} }
/// dump - print derived type. /// dump - Print derived type.
void DIDerivedType::dump() const { void DIDerivedType::dump() const {
cerr << "\n\t Derived From: "; getTypeDerivedFrom().dump(); cerr << "\n\t Derived From: "; getTypeDerivedFrom().dump();
} }
/// dump - print composite type. /// dump - Print composite type.
void DICompositeType::dump() const { void DICompositeType::dump() const {
DIArray A = getTypeArray(); DIArray A = getTypeArray();
if (A.isNull()) if (A.isNull())
@ -1056,7 +1031,7 @@ void DICompositeType::dump() const {
cerr << " [" << A.getNumElements() << " elements]"; cerr << " [" << A.getNumElements() << " elements]";
} }
/// dump - print global. /// dump - Print global.
void DIGlobal::dump() const { void DIGlobal::dump() const {
std::string Res; std::string Res;
if (!getName(Res).empty()) if (!getName(Res).empty())
@ -1081,17 +1056,17 @@ void DIGlobal::dump() const {
cerr << "\n"; cerr << "\n";
} }
/// dump - print subprogram. /// dump - Print subprogram.
void DISubprogram::dump() const { void DISubprogram::dump() const {
DIGlobal::dump(); DIGlobal::dump();
} }
/// dump - print global variable. /// dump - Print global variable.
void DIGlobalVariable::dump() const { void DIGlobalVariable::dump() const {
cerr << " ["; getGlobal()->dump(); cerr << "] "; cerr << " ["; getGlobal()->dump(); cerr << "] ";
} }
/// dump - print variable. /// dump - Print variable.
void DIVariable::dump() const { void DIVariable::dump() const {
std::string Res; std::string Res;
if (!getName(Res).empty()) if (!getName(Res).empty())