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Get this looking more like a function pass.

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llvm-svn: 13433
This commit is contained in:
Chris Lattner 2004-05-09 04:30:20 +00:00
parent da4ac5d876
commit 37abb037bf
1 changed files with 33 additions and 32 deletions
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65
lib/Target/CBackend/Writer.cpp
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@ -59,14 +59,14 @@ namespace {
bool doInitialization(Module &M);
bool run(Module &M) {
// First pass, lower all unhandled intrinsics.
lowerIntrinsics(M);
doInitialization(M);
for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I)
if (!I->isExternal())
if (!I->isExternal()) {
// First pass, lower all unhandled intrinsics.
lowerIntrinsics(*I);
printFunction(*I);
}
// Free memory...
delete Mang;
@ -82,7 +82,7 @@ namespace {
void writeOperandInternal(Value *Operand);
private :
void lowerIntrinsics(Module &M);
void lowerIntrinsics(Function &F);
bool nameAllUsedStructureTypes(Module &M);
void printModule(Module *M);
@ -655,6 +655,8 @@ bool CWriter::doInitialization(Module &M) {
// Initialize
TheModule = &M;
FUT = &getAnalysis<FindUsedTypes>();
IL.AddPrototypes(M);
// Ensure that all structure types have names...
bool Changed = nameAllUsedStructureTypes(M);
@ -776,7 +778,7 @@ bool CWriter::doInitialization(Module &M) {
void CWriter::printFloatingPointConstants(Module &M) {
union {
double D;
unsigned long long U;
uint64_t U;
} DBLUnion;
union {
@ -1219,33 +1221,32 @@ void CWriter::visitSelectInst(SelectInst &I) {
}
void CWriter::lowerIntrinsics(Module &M) {
for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F)
for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB)
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; )
if (CallInst *CI = dyn_cast<CallInst>(I++))
if (Function *F = CI->getCalledFunction())
switch (F->getIntrinsicID()) {
case Intrinsic::not_intrinsic:
case Intrinsic::vastart:
case Intrinsic::vacopy:
case Intrinsic::vaend:
case Intrinsic::returnaddress:
case Intrinsic::frameaddress:
case Intrinsic::setjmp:
case Intrinsic::longjmp:
// We directly implement these intrinsics
break;
default:
// All other intrinsic calls we must lower.
Instruction *Before = CI->getPrev();
IL.LowerIntrinsicCall(CI);
if (Before) { // Move iterator to instruction after call
I = Before; ++I;
} else {
I = BB->begin();
}
void CWriter::lowerIntrinsics(Function &F) {
for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; )
if (CallInst *CI = dyn_cast<CallInst>(I++))
if (Function *F = CI->getCalledFunction())
switch (F->getIntrinsicID()) {
case Intrinsic::not_intrinsic:
case Intrinsic::vastart:
case Intrinsic::vacopy:
case Intrinsic::vaend:
case Intrinsic::returnaddress:
case Intrinsic::frameaddress:
case Intrinsic::setjmp:
case Intrinsic::longjmp:
// We directly implement these intrinsics
break;
default:
// All other intrinsic calls we must lower.
Instruction *Before = CI->getPrev();
IL.LowerIntrinsicCall(CI);
if (Before) { // Move iterator to instruction after call
I = Before; ++I;
} else {
I = BB->begin();
}
}
}