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eliminate use of Instruction::getNext()

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36200 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-04-17 17:51:03 +00:00
parent decb0ca18b
commit a0e1b0e98d
1 changed files with 15 additions and 13 deletions
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28
lib/Transforms/Instrumentation/RSProfiling.cpp
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@ -230,9 +230,10 @@ GlobalRandomCounterOpt::~GlobalRandomCounterOpt() {}
void GlobalRandomCounterOpt::PrepFunction(Function* F) {
//make a local temporary to cache the global
BasicBlock& bb = F->getEntryBlock();
AI = new AllocaInst(T, 0, "localcounter", bb.begin());
LoadInst* l = new LoadInst(Counter, "counterload", AI->getNext());
new StoreInst(l, AI, l->getNext());
BasicBlock::iterator InsertPt = bb.begin();
AI = new AllocaInst(T, 0, "localcounter", InsertPt);
LoadInst* l = new LoadInst(Counter, "counterload", InsertPt);
new StoreInst(l, AI, InsertPt);
//modify all functions and return values to restore the local variable to/from
//the global variable
@ -240,25 +241,26 @@ void GlobalRandomCounterOpt::PrepFunction(Function* F) {
fib != fie; ++fib)
for(BasicBlock::iterator bib = fib->begin(), bie = fib->end();
bib != bie; ++bib)
if (isa<CallInst>(&*bib)) {
if (isa<CallInst>(bib)) {
LoadInst* l = new LoadInst(AI, "counter", bib);
new StoreInst(l, Counter, bib);
l = new LoadInst(Counter, "counter", bib->getNext());
new StoreInst(l, AI, l->getNext());
} else if (isa<InvokeInst>(&*bib)) {
l = new LoadInst(Counter, "counter", ++bib);
new StoreInst(l, AI, bib--);
} else if (isa<InvokeInst>(bib)) {
LoadInst* l = new LoadInst(AI, "counter", bib);
new StoreInst(l, Counter, bib);
BasicBlock* bb = cast<InvokeInst>(&*bib)->getNormalDest();
Instruction* i = bb->begin();
while (isa<PHINode>(i)) i = i->getNext();
BasicBlock* bb = cast<InvokeInst>(bib)->getNormalDest();
BasicBlock::iterator i = bb->begin();
while (isa<PHINode>(i))
++i;
l = new LoadInst(Counter, "counter", i);
bb = cast<InvokeInst>(&*bib)->getUnwindDest();
bb = cast<InvokeInst>(bib)->getUnwindDest();
i = bb->begin();
while (isa<PHINode>(i)) i = i->getNext();
while (isa<PHINode>(i)) ++i;
l = new LoadInst(Counter, "counter", i);
new StoreInst(l, AI, l->getNext());
new StoreInst(l, AI, i);
} else if (isa<UnwindInst>(&*bib) || isa<ReturnInst>(&*bib)) {
LoadInst* l = new LoadInst(AI, "counter", bib);
new StoreInst(l, Counter, bib);