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In instcombine's debug output, avoid printing ADD for instructions that are

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already on the worklist, and print Visited when an instruction is about to be
visited.  Net, on one input, this reduced the output size by at least 9x.

llvm-svn: 83510
This commit is contained in:
Jeffrey Yasskin 2009-10-08 00:12:24 +00:00
parent 729cd181a2
commit e36facef86
1 changed files with 5 additions and 3 deletions
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8
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -90,9 +90,10 @@ namespace {
/// Add - Add the specified instruction to the worklist if it isn't already
/// in it.
void Add(Instruction *I) {
DEBUG(errs() << "IC: ADD: " << *I << '\n');
if (WorklistMap.insert(std::make_pair(I, Worklist.size())).second)
if (WorklistMap.insert(std::make_pair(I, Worklist.size())).second) {
DEBUG(errs() << "IC: ADD: " << *I << '\n');
Worklist.push_back(I);
}
}
void AddValue(Value *V) {
@ -12853,7 +12854,8 @@ bool InstCombiner::DoOneIteration(Function &F, unsigned Iteration) {
std::string OrigI;
#endif
DEBUG(raw_string_ostream SS(OrigI); I->print(SS); OrigI = SS.str(););
DEBUG(errs() << "IC: Visiting: " << OrigI << '\n');
if (Instruction *Result = visit(*I)) {
++NumCombined;
// Should we replace the old instruction with a new one?