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Temporarily revert r72191. It was causing an assert during llvm-gcc

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bootstrapping.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72200 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling
2009-05-21 00:04:55 +00:00
parent 39dd696282
commit df7d5d3170
9 changed files with 34 additions and 201 deletions
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73
include/llvm/CodeGen/DebugLoc.h
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@@ -20,77 +20,18 @@
namespace llvm {
class GlobalVariable;
class MachineFunction;
/// DebugScope - Debug scope id. This is carried into DebugLocTuple to index
/// into a vector of DebugScopeInfos. Provides the ability to associate a
/// SDNode/MachineInstr with the debug scope that it belongs to.
///
class DebugScope {
unsigned Idx;
public:
DebugScope() : Idx(~0U) {} // Defaults to null.
static DebugScope getInvalid() { DebugScope S; S.Idx = ~0U; return S; }
static DebugScope get(unsigned idx) { DebugScope S; S.Idx = idx; return S; }
unsigned getIndex() const { return Idx; }
/// isInvalid - Return true if it doesn't refer to any scope.
bool isInvalid() const { return Idx == ~0U; }
bool operator==(const DebugScope &DS) const { return Idx == DS.Idx; }
bool operator!=(const DebugScope &DS) const { return !(*this == DS); }
};
/// DebugScopeInfo - Contains info about the scope global variable and the
/// parent debug scope. DebugScope is only a "cookie" that can point to a
/// specific DebugScopeInfo.
///
struct DebugScopeInfo {
GlobalVariable *GV;
DebugScope Parent;
DebugScopeInfo(GlobalVariable *gv, DebugScope parent)
: GV(gv), Parent(parent) {}
DebugScopeInfo()
: GV(0), Parent(DebugScope::getInvalid()) {}
};
/// DebugScopeTracker - Create and keep track of the debug scope while
/// entering/exiting subprograms and blocks. Used by the instruction
/// selectors.
///
class DebugScopeTracker {
DebugScope CurScope;
public:
/// getCurScope - The current debug scope that we "entered" through
/// EnterDebugScope.
DebugScope getCurScope() const { return CurScope; }
/// EnterDebugScope - Start a new debug scope. ScopeGV can be a DISubprogram
/// or a DIBlock.
void EnterDebugScope(GlobalVariable *ScopeGV, MachineFunction &MF);
/// ExitDebugScope - "Pop" a DISubprogram or a DIBlock.
void ExitDebugScope(GlobalVariable *ScopeGV, MachineFunction &MF);
};
/// DebugLocTuple - Debug location tuple of a DICompileUnit global variable,
/// debug scope, line and column.
/// DebugLocTuple - Debug location tuple of filename id, line and column.
///
struct DebugLocTuple {
GlobalVariable *CompileUnit;
DebugScope Scope;
unsigned Line, Col;
DebugLocTuple(GlobalVariable *v, DebugScope s, unsigned l, unsigned c)
: CompileUnit(v), Scope(s), Line(l), Col(c) {};
DebugLocTuple(GlobalVariable *v, unsigned l, unsigned c)
: CompileUnit(v), Line(l), Col(c) {};
bool operator==(const DebugLocTuple &DLT) const {
return CompileUnit == DLT.CompileUnit && Scope == DLT.Scope &&
return CompileUnit == DLT.CompileUnit &&
Line == DLT.Line && Col == DLT.Col;
}
bool operator!=(const DebugLocTuple &DLT) const {
@@ -122,20 +63,18 @@ namespace llvm {
// Partially specialize DenseMapInfo for DebugLocTyple.
template<> struct DenseMapInfo<DebugLocTuple> {
static inline DebugLocTuple getEmptyKey() {
return DebugLocTuple(0, DebugScope::getInvalid(), ~0U, ~0U);
return DebugLocTuple(0, ~0U, ~0U);
}
static inline DebugLocTuple getTombstoneKey() {
return DebugLocTuple((GlobalVariable*)~1U,DebugScope::get(~1U), ~1U, ~1U);
return DebugLocTuple((GlobalVariable*)~1U, ~1U, ~1U);
}
static unsigned getHashValue(const DebugLocTuple &Val) {
return DenseMapInfo<GlobalVariable*>::getHashValue(Val.CompileUnit) ^
DenseMapInfo<unsigned>::getHashValue(Val.Scope.getIndex()) ^
DenseMapInfo<unsigned>::getHashValue(Val.Line) ^
DenseMapInfo<unsigned>::getHashValue(Val.Col);
}
static bool isEqual(const DebugLocTuple &LHS, const DebugLocTuple &RHS) {
return LHS.CompileUnit == RHS.CompileUnit &&
LHS.Scope == RHS.Scope &&
LHS.Line == RHS.Line &&
LHS.Col == RHS.Col;
}