From: Jeffrey Yasskin <jyasskin@google.com>
Date: Thu, 8 Oct 2009 00:12:24 +0000 (+0000)
Subject: In instcombine's debug output, avoid printing ADD for instructions that are
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4306963170dfc17d580421220674aa3c030f525a;p=oota-llvm.git

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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83510 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 66776dde4ca..bb0e0996bf2 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -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?