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Doxygenified and cleand up comments.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12294 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Misha Brukman
2004-03-11 23:08:20 +00:00
parent 3497ae9f05
commit dd298c8c6e
16 changed files with 472 additions and 440 deletions
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116
include/llvm/Analysis/IPModRef.h
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@@ -65,23 +65,18 @@ class ModRefInfo; // Result of IP Mod/Ref for one entity
class FunctionModRefInfo; // ModRefInfo for a func and all calls in it
class IPModRef; // Pass that computes IP Mod/Ref info
//---------------------------------------------------------------------------
// class ModRefInfo
//
// Purpose:
// Representation of Mod/Ref information for a single function or callsite.
// This is represented as a pair of bit vectors, one each for Mod and Ref.
// Each bit vector is indexed by the node id of the DS graph node index.
//---------------------------------------------------------------------------
//----------------------------------------------------------------------------
/// ModRefInfo Class - Representation of Mod/Ref information for a single
/// function or callsite. This is represented as a pair of bit vectors, one each
/// for Mod and Ref. Each bit vector is indexed by the node id of the DS graph
/// node index.
///
class ModRefInfo {
BitSetVector modNodeSet; // set of modified nodes
BitSetVector refNodeSet; // set of referenced nodes
public:
//
// Methods to construct ModRefInfo objects.
//
ModRefInfo(unsigned int numNodes)
: modNodeSet(numNodes),
refNodeSet(numNodes) { }
@@ -95,9 +90,7 @@ public:
void setNodeIsMod (unsigned nodeId) { modNodeSet[nodeId] = true; }
void setNodeIsRef (unsigned nodeId) { refNodeSet[nodeId] = true; }
//
// Methods to query the mod/ref info
//
bool nodeIsMod (unsigned nodeId) const { return modNodeSet.test(nodeId); }
bool nodeIsRef (unsigned nodeId) const { return refNodeSet.test(nodeId); }
bool nodeIsKill(unsigned nodeId) const { return false; }
@@ -115,15 +108,12 @@ public:
//----------------------------------------------------------------------------
// class FunctionModRefInfo
//
// Representation of the results of IP Mod/Ref analysis for a function
// and for each of the call sites within the function.
// Each of these are represented as bit vectors of size = the number of
// nodes in the top-dwon DS graph of the function. Nodes are identified by
// their nodeId, in the range [0 .. funcTDGraph.size()-1].
//----------------------------------------------------------------------------
/// FunctionModRefInfo Class - Representation of the results of IP Mod/Ref
/// analysis for a function and for each of the call sites within the function.
/// Each of these are represented as bit vectors of size = the number of nodes
/// in the top-dwon DS graph of the function. Nodes are identified by their
/// nodeId, in the range [0 .. funcTDGraph.size()-1].
///
class FunctionModRefInfo {
const Function& F; // The function
IPModRef& IPModRefObj; // The IPModRef Object owning this
@@ -135,33 +125,33 @@ class FunctionModRefInfo {
friend class IPModRef;
void computeModRef (const Function &func);
void computeModRef (CallSite call);
DSGraph *ResolveCallSiteModRefInfo(CallSite CS,
hash_map<const DSNode*, DSNodeHandle> &NodeMap);
void computeModRef(const Function &func);
void computeModRef(CallSite call);
DSGraph*
ResolveCallSiteModRefInfo(CallSite CS,
hash_map<const DSNode*, DSNodeHandle> &NodeMap);
public:
/* ctor */ FunctionModRefInfo (const Function& func,
IPModRef& IPModRefObj,
DSGraph* tdgClone);
/* dtor */ ~FunctionModRefInfo ();
FunctionModRefInfo(const Function& func, IPModRef &IPModRefObj,
DSGraph* tdgClone);
~FunctionModRefInfo();
// Identify the function and its relevant DS graph
//
const Function& getFunction() const { return F; }
const DSGraph& getFuncGraph() const { return *funcTDGraph; }
const Function& getFunction() const { return F; }
const DSGraph& getFuncGraph() const { return *funcTDGraph; }
// Retrieve Mod/Ref results for a single call site and for the function body
//
const ModRefInfo* getModRefInfo (const Function& func) const {
const ModRefInfo* getModRefInfo(const Function& func) const {
return &funcModRefInfo;
}
const ModRefInfo* getModRefInfo (const CallInst& callInst) const {
const ModRefInfo* getModRefInfo(const CallInst& callInst) const {
std::map<const Instruction*, ModRefInfo*>::const_iterator I =
callSiteModRefInfo.find((Instruction*)&callInst);
return (I == callSiteModRefInfo.end()) ? NULL : I->second;
}
const ModRefInfo* getModRefInfo (const InvokeInst& II) const {
const ModRefInfo* getModRefInfo(const InvokeInst& II) const {
std::map<const Instruction*, ModRefInfo*>::const_iterator I =
callSiteModRefInfo.find((Instruction*)&II);
return (I == callSiteModRefInfo.end()) ? NULL : I->second;
@@ -169,13 +159,13 @@ public:
// Get the nodeIds used to index all Mod/Ref information for current function
//
unsigned getNodeId (const DSNode* node) const {
unsigned getNodeId(const DSNode* node) const {
std::map<const DSNode*, unsigned>::const_iterator iter = NodeIds.find(node);
assert(iter != NodeIds.end() && iter->second < funcModRefInfo.getSize());
return iter->second;
}
unsigned getNodeId (const Value* value) const;
unsigned getNodeId(const Value* value) const;
// Debugging support methods
void print(std::ostream &O) const;
@@ -184,19 +174,15 @@ public:
//----------------------------------------------------------------------------
// class IPModRef
//
// Purpose:
// An interprocedural pass that computes IP Mod/Ref info for functions and
// for individual call sites.
//
// Given the DSGraph of a function, this class can be queried for
// a ModRefInfo object describing all the nodes in the DSGraph that are
// (a) modified, and (b) referenced during an execution of the function
// from an arbitrary callsite, or during an execution of a single call-site
// within the function.
//----------------------------------------------------------------------------
/// IPModRef Class - An interprocedural pass that computes IP Mod/Ref info for
/// functions and for individual call sites.
///
/// Given the DSGraph of a function, this class can be queried for
/// a ModRefInfo object describing all the nodes in the DSGraph that are
/// (a) modified, and (b) referenced during an execution of the function
/// from an arbitrary callsite, or during an execution of a single call-site
/// within the function.
///
class IPModRef : public Pass {
std::map<const Function*, FunctionModRefInfo*> funcToModRefInfoMap;
Module* M;
@@ -204,17 +190,18 @@ class IPModRef : public Pass {
FunctionModRefInfo& getFuncInfo(const Function& func,
bool computeIfMissing = false);
public:
IPModRef() : M(NULL) { }
~IPModRef() { }
IPModRef() : M(NULL) {}
~IPModRef() {}
// Driver function to run IP Mod/Ref on a Module.
// This initializes the module reference, and then computes IPModRef
// results immediately if demand-driven analysis was *not* specified.
//
/// run - Driver function to run IP Mod/Ref on a Module.
/// This initializes the module reference, and then computes IPModRef
/// results immediately if demand-driven analysis was *not* specified.
///
virtual bool run(Module &M);
// Retrieve the Mod/Ref information for a single function
//
/// getFunctionModRefInfo - Retrieve the Mod/Ref information for a single
/// function
///
const FunctionModRefInfo& getFunctionModRefInfo(const Function& func) {
return getFuncInfo(func);
}
@@ -229,18 +216,17 @@ public:
void print(std::ostream &O) const;
void dump() const;
// Release memory held by this pass when the pass pipeline is done
//
/// releaseMemory - Release memory held by this pass when the pass pipeline is
/// done
///
virtual void releaseMemory();
// getAnalysisUsage - This pass requires top-down data structure graphs.
// It modifies nothing.
//
/// getAnalysisUsage - This pass requires top-down data structure graphs.
/// It modifies nothing.
///
virtual void getAnalysisUsage(AnalysisUsage &AU) const;
};
//===----------------------------------------------------------------------===//
} // End llvm namespace
#endif