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Publicize the type of FnAllocState. 

Prototype option to save state in a global instead of as a Constant in
 the Module. (Turned off, for now, with the on/off switch welded in the off
 position. You get the idea.)

llvm-svn: 9500
This commit is contained in:
Brian Gaeke 2003-10-24 21:21:58 +00:00
parent 9ab7fbef60
commit eca381c7e8
2 changed files with 15 additions and 2 deletions
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11
llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.cpp
View File

@ -48,6 +48,12 @@
RegAllocDebugLevel_t DEBUG_RA;
/// The reoptimizer wants to be able to grovel through the register
/// allocator's state after it has done its job. This is a hack.
///
PhyRegAlloc::SavedStateMapTy ExportedFnAllocState;
const bool SaveStateToModule = false;
static cl::opt<RegAllocDebugLevel_t, true>
DRA_opt("dregalloc", cl::Hidden, cl::location(DEBUG_RA),
cl::desc("enable register allocation debugging information"),
@ -1184,6 +1190,11 @@ bool PhyRegAlloc::doFinalization (Module &M) {
if (!SaveRegAllocState)
return false; // Nothing to do here, unless we're saving state.
if (!SaveStateToModule) {
ExportedFnAllocState = FnAllocState;
return false;
}
// Convert FnAllocState to a single Constant array and add it
// to the Module.
ArrayType *AT = ArrayType::get (AllocInfo::getConstantType (), 0);

6
llvm/lib/CodeGen/RegAlloc/PhyRegAlloc.h
View File

@ -85,11 +85,11 @@ class PhyRegAlloc : public FunctionPass {
AddedInstrns AddedInstrAtEntry; // to store instrns added at entry
const LoopInfo *LoopDepthCalc; // to calculate loop depths
std::map<const Function *, std::vector<AllocInfo> > FnAllocState;
PhyRegAlloc(const PhyRegAlloc&); // DO NOT IMPLEMENT
void operator=(const PhyRegAlloc&); // DO NOT IMPLEMENT
public:
typedef std::map<const Function *, std::vector<AllocInfo> > SavedStateMapTy;
inline PhyRegAlloc (const TargetMachine &TM_) :
TM (TM_), MRI (TM.getRegInfo ()),
NumOfRegClasses (MRI.getNumOfRegClasses ()) { }
@ -113,6 +113,8 @@ public:
inline RegClass *getRegClassByID(unsigned id) { return RegClassList[id]; }
private:
SavedStateMapTy FnAllocState;
void addInterference(const Value *Def, const ValueSet *LVSet,
bool isCallInst);
bool markAllocatedRegs(MachineInstr* MInst);