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author | Francis Visoiu Mistrih <francisvm@yahoo.com> | 2018-02-09 00:40:57 +0000 |
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committer | Francis Visoiu Mistrih <francisvm@yahoo.com> | 2018-02-09 00:40:57 +0000 |
commit | 7d3dde3c6b31b513a9c3e6b8d9cf8acc530dbab0 (patch) | |
tree | ad85a4f8ac3b3a978969d23090e8421d34e2af5f /llvm/lib/CodeGen/MachineBasicBlock.cpp | |
parent | b75a3f04ecc80f967454529a6d3f4911523a78f5 (diff) | |
download | bcm5719-llvm-7d3dde3c6b31b513a9c3e6b8d9cf8acc530dbab0.tar.gz bcm5719-llvm-7d3dde3c6b31b513a9c3e6b8d9cf8acc530dbab0.zip |
[CodeGen] Don't compute BranchProbability for MBB::print
Avoid re-computing BP only to print successor probabilities in -debug
printing.
llvm-svn: 324690
Diffstat (limited to 'llvm/lib/CodeGen/MachineBasicBlock.cpp')
-rw-r--r-- | llvm/lib/CodeGen/MachineBasicBlock.cpp | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/llvm/lib/CodeGen/MachineBasicBlock.cpp b/llvm/lib/CodeGen/MachineBasicBlock.cpp index 8f4d9b7a053..76ed383ac3f 100644 --- a/llvm/lib/CodeGen/MachineBasicBlock.cpp +++ b/llvm/lib/CodeGen/MachineBasicBlock.cpp @@ -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. |