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Output a bit more information in the debug printing for MBP. This was

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useful when analyzing parts of zlib's behavior here.

llvm-svn: 195588
This commit is contained in:
Chandler Carruth 2013-11-25 00:43:41 +00:00
parent d0d03fae95
commit 0e71e8676c
1 changed files with 4 additions and 3 deletions
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7
lib/CodeGen/MachineBlockPlacement.cpp
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@ -367,7 +367,8 @@ MachineBasicBlock *MachineBlockPlacement::selectBestSuccessor(
// any CFG constraints.
if (SuccChain.LoopPredecessors != 0) {
if (SuccProb < HotProb) {
DEBUG(dbgs() << " " << getBlockName(*SI) << " -> CFG conflict\n");
DEBUG(dbgs() << " " << getBlockName(*SI) << " -> " << SuccProb
<< " (prob) (CFG conflict)\n");
continue;
}
@ -390,8 +391,8 @@ MachineBasicBlock *MachineBlockPlacement::selectBestSuccessor(
}
}
if (BadCFGConflict) {
DEBUG(dbgs() << " " << getBlockName(*SI)
<< " -> non-cold CFG conflict\n");
DEBUG(dbgs() << " " << getBlockName(*SI) << " -> " << SuccProb
<< " (prob) (non-cold CFG conflict)\n");
continue;
}
}