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[CodeGen] Only print successors when the list is not empty 

Follow-up of r324685.

llvm-svn: 324686
This commit is contained in:
Francis Visoiu Mistrih 2018-02-09 00:12:53 +00:00
parent 39ec2e95ae
commit a37e00968e
1 changed files with 24 additions and 21 deletions
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45
llvm/lib/CodeGen/MachineBasicBlock.cpp
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@ -334,27 +334,30 @@ void MachineBasicBlock::print(raw_ostream &OS, ModuleSlotTracker &MST,
OS << '\n';
}
// Print the successors
OS.indent(2) << "successors: ";
for (auto I = succ_begin(), E = succ_end(); I != E; ++I) {
if (I != succ_begin())
OS << ", ";
OS << printMBBReference(**I);
OS << '(' << format("0x%08" PRIx32, getSuccProbability(I).getNumerator())
<< ')';
}
// Print human readable probabilities as comments.
OS << "; ";
for (auto I = succ_begin(), E = succ_end(); I != E; ++I) {
const BranchProbability &BP = *getProbabilityIterator(I);
if (I != succ_begin())
OS << ", ";
OS << printMBBReference(**I) << '('
<< format("%.2f%%",
rint(((double)BP.getNumerator() / BP.getDenominator()) *
100.0 * 100.0) /
100.0)
<< ')';
if (!succ_empty()) {
// Print the successors
OS.indent(2) << "successors: ";
for (auto I = succ_begin(), E = succ_end(); I != E; ++I) {
if (I != succ_begin())
OS << ", ";
OS << printMBBReference(**I);
OS << '(' << format("0x%08" PRIx32, getSuccProbability(I).getNumerator())
<< ')';
}
// Print human readable probabilities as comments.
OS << "; ";
for (auto I = succ_begin(), E = succ_end(); I != E; ++I) {
const BranchProbability &BP = *getProbabilityIterator(I);
if (I != succ_begin())
OS << ", ";
OS << printMBBReference(**I) << '('
<< format("%.2f%%",
rint(((double)BP.getNumerator() / BP.getDenominator()) *
100.0 * 100.0) /
100.0)
<< ')';
}
OS << '\n';
}
// Print the preds of this block according to the CFG.