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[CodeGen] Don't compute BranchProbability for MBB::print

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Avoid re-computing BP only to print successor probabilities in -debug
printing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@324690 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Francis Visoiu Mistrih
2018-02-09 00:40:57 +00:00
parent e4de84b600
commit 2abdc456cb
1 changed files with 19 additions and 15 deletions
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lib/CodeGen/MachineBasicBlock.cpp
+19 -15
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@@ -341,23 +341,27 @@ void MachineBasicBlock::print(raw_ostream &OS, ModuleSlotTracker &MST,
if (I != succ_begin())
OS << ", ";
OS << printMBBReference(**I);
OS << '(' << format("0x%08" PRIx32, getSuccProbability(I).getNumerator())
<< ')';
if (!Probs.empty())
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 (!Probs.empty()) {
// 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';
}
OS << '\n';
}
// Print the preds of this block according to the CFG.