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make domtree verification print something useful on failure.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123078 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2011-01-08 19:55:55 +00:00
parent 64c24db959
commit 57863b8ee0
1 changed files with 8 additions and 1 deletions
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9
lib/VMCore/Dominators.cpp
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@ -68,7 +68,14 @@ void DominatorTree::verifyAnalysis() const {
DominatorTree OtherDT;
OtherDT.getBase().recalculate(F);
assert(!compare(OtherDT) && "Invalid DominatorTree info!");
if (compare(OtherDT)) {
errs() << "DominatorTree is not up to date! Computed:\n";
print(errs());
errs() << "\nActual:\n";
OtherDT.print(errs());
abort();
}
}
void DominatorTree::print(raw_ostream &OS, const Module *) const {