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

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 d801b06232
commit dafd08ea7e
1 changed files with 5 additions and 3 deletions
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8
llvm/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?