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Make some debug output more informative. 

llvm-svn: 104078
This commit is contained in:
Dan Gohman 2010-05-18 22:37:37 +00:00
parent 06ab08f795
commit 8aca7ef903
1 changed files with 3 additions and 2 deletions
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5
llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
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@ -2598,6 +2598,7 @@ void LSRInstance::FilterOutUndesirableDedicatedRegisters() {
for (size_t LUIdx = 0, NumUses = Uses.size(); LUIdx != NumUses; ++LUIdx) {
LSRUse &LU = Uses[LUIdx];
FormulaSorter Sorter(L, LU, SE, DT);
DEBUG(dbgs() << "Filtering for use "; LU.print(dbgs()); dbgs() << "\n");
for (size_t FIdx = 0, NumForms = LU.Formulae.size();
FIdx != NumForms; ++FIdx) {
@ -2623,9 +2624,9 @@ void LSRInstance::FilterOutUndesirableDedicatedRegisters() {
Formula &Best = LU.Formulae[P.first->second];
if (Sorter.operator()(F, Best))
std::swap(F, Best);
DEBUG(dbgs() << "Filtering out "; F.print(dbgs());
DEBUG(dbgs() << " Filtering out formula "; F.print(dbgs());
dbgs() << "\n"
" in favor of "; Best.print(dbgs());
" in favor of formula "; Best.print(dbgs());
dbgs() << '\n');
#ifndef NDEBUG
Changed = true;