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Move machine code generation/destruction passes out of Sparc.cpp because

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they are generic


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4310 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-10-28 01:12:41 +00:00
parent e42a84f64f
commit 227c3d355b
2 changed files with 58 additions and 44 deletions
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56
lib/CodeGen/MachineFunction.cpp
View File

@ -9,11 +9,13 @@
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h" // For debug output
#include "llvm/CodeGen/MachineCodeForBasicBlock.h"
#include "llvm/CodeGen/MachineCodeForInstruction.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/MachineFrameInfo.h"
#include "llvm/Target/MachineCacheInfo.h"
#include "llvm/Function.h"
#include "llvm/iOther.h"
#include "llvm/Pass.h"
#include <limits.h>
const int INVALID_FRAME_OFFSET = INT_MAX; // std::numeric_limits<int>::max();
@ -21,6 +23,60 @@ const int INVALID_FRAME_OFFSET = INT_MAX; // std::numeric_limits<int>::max();
static AnnotationID MCFM_AID(
AnnotationManager::getID("CodeGen::MachineCodeForFunction"));
//===---------------------------------------------------------------------===//
// Code generation/destruction passes
//===---------------------------------------------------------------------===//
namespace {
class ConstructMachineFunction : public FunctionPass {
TargetMachine &Target;
public:
ConstructMachineFunction(TargetMachine &T) : Target(T) {}
const char *getPassName() const {
return "ConstructMachineFunction";
}
bool runOnFunction(Function &F) {
MachineFunction::construct(&F, Target);
return false;
}
};
struct DestroyMachineFunction : public FunctionPass {
const char *getPassName() const { return "FreeMachineFunction"; }
static void freeMachineCode(Instruction &I) {
MachineCodeForInstruction::destroy(&I);
}
bool runOnFunction(Function &F) {
for (Function::iterator FI = F.begin(), FE = F.end(); FI != FE; ++FI)
for (BasicBlock::iterator I = FI->begin(), E = FI->end(); I != E; ++I)
MachineCodeForInstruction::get(I).dropAllReferences();
for (Function::iterator FI = F.begin(), FE = F.end(); FI != FE; ++FI)
for_each(FI->begin(), FI->end(), freeMachineCode);
return false;
}
};
}
Pass *createMachineCodeConstructionPass(TargetMachine &Target) {
return new ConstructMachineFunction(Target);
}
Pass *createMachineCodeDestructionPass() {
return new DestroyMachineFunction();
}
//===---------------------------------------------------------------------===//
// MachineFunction implementation
//===---------------------------------------------------------------------===//
// The next two methods are used to construct and to retrieve
// the MachineCodeForFunction object for the given function.
// construct() -- Allocates and initializes for a given function and target

46
lib/Target/SparcV9/SparcV9TargetMachine.cpp
View File

@ -113,48 +113,6 @@ UltraSparcFrameInfo::getDynamicAreaOffset(MachineFunction& mcInfo,
return offset;
}
//===---------------------------------------------------------------------===//
// Default code generation passes.
//
// Native code generation for a specified target.
//===---------------------------------------------------------------------===//
class ConstructMachineCodeForFunction : public FunctionPass {
TargetMachine &Target;
public:
ConstructMachineCodeForFunction(TargetMachine &T) : Target(T) {}
const char *getPassName() const {
return "ConstructMachineCodeForFunction";
}
bool runOnFunction(Function &F) {
MachineFunction::construct(&F, Target);
return false;
}
};
struct FreeMachineCodeForFunction : public FunctionPass {
const char *getPassName() const { return "FreeMachineCodeForFunction"; }
static void freeMachineCode(Instruction &I) {
MachineCodeForInstruction::destroy(&I);
}
bool runOnFunction(Function &F) {
for (Function::iterator FI = F.begin(), FE = F.end(); FI != FE; ++FI)
for (BasicBlock::iterator I = FI->begin(), E = FI->end(); I != E; ++I)
MachineCodeForInstruction::get(I).dropAllReferences();
for (Function::iterator FI = F.begin(), FE = F.end(); FI != FE; ++FI)
for_each(FI->begin(), FI->end(), freeMachineCode);
return false;
}
};
//---------------------------------------------------------------------------
// class UltraSparcMachine
//
@ -187,7 +145,7 @@ UltraSparc::UltraSparc()
void UltraSparc::addPassesToEmitAssembly(PassManager &PM, std::ostream &Out)
{
// Construct and initialize the MachineFunction object for this fn.
PM.add(new ConstructMachineCodeForFunction(*this));
PM.add(createMachineCodeConstructionPass(*this));
//Insert empty stackslots in the stack frame of each function
//so %fp+offset-8 and %fp+offset-16 are empty slots now!
@ -224,7 +182,7 @@ void UltraSparc::addPassesToEmitAssembly(PassManager &PM, std::ostream &Out)
// function has been emitted.
//
PM.add(getFunctionAsmPrinterPass(Out));
PM.add(new FreeMachineCodeForFunction()); // Free stuff no longer needed
PM.add(createMachineCodeDestructionPass()); // Free stuff no longer needed
// Emit Module level assembly after all of the functions have been processed.
PM.add(getModuleAsmPrinterPass(Out));