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[lld][LayoutPass] initialize the number of entries for the densehash (no functionality change) 

llvm-svn: 180690
This commit is contained in:
Shankar Easwaran 2013-04-29 03:27:57 +00:00
parent 83e2a44a13
commit 45a5f93517
1 changed files with 23 additions and 18 deletions
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41
lld/lib/Passes/LayoutPass.cpp
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@ -135,10 +135,16 @@ bool LayoutPass::CompareAtoms::operator()(const DefinedAtom *left,
/// targetAtoms and its tree to the current chain
void LayoutPass::buildFollowOnTable(MutableFile::DefinedAtomRange &range) {
ScopedTask task(getDefaultDomain(), "LayoutPass::buildFollowOnTable");
// Set the initial size of the followon and
// the followonNext hash to the number of atoms
// that we have
_followOnRoots.resize(range.size());
_followOnNexts.resize(range.size());
for (auto ai : range) {
for (const Reference *r : *ai) {
if (r->kind() == lld::Reference::kindLayoutAfter) {
const DefinedAtom *targetAtom = llvm::dyn_cast<DefinedAtom>(r->target());
const DefinedAtom *targetAtom =
llvm::dyn_cast<DefinedAtom>(r->target());
_followOnNexts[ai] = targetAtom;
// If we find a followon for the first time, lets make that
// atom as the root atom
@ -441,32 +447,31 @@ void LayoutPass::perform(MutableFile &mergedFile) {
// Build override maps
buildOrdinalOverrideMap(atomRange);
DEBUG_WITH_TYPE("layout", {
DEBUG_WITH_TYPE("layout", {
llvm::dbgs() << "unsorted atoms:\n";
for (const DefinedAtom *atom : atomRange) {
llvm::dbgs() << " file=" << atom->file().path()
<< ", name=" << atom->name()
<< ", size=" << atom->size()
<< ", type=" << atom->contentType()
<< ", ordinal=" << atom->ordinal()
<< "\n";
llvm::dbgs() << " file=" << atom->file().path()
<< ", name=" << atom->name()
<< ", size=" << atom->size()
<< ", type=" << atom->contentType()
<< ", ordinal=" << atom->ordinal()
<< "\n";
}
});
// sort the atoms
std::sort(atomRange.begin(), atomRange.end(), _compareAtoms);
DEBUG_WITH_TYPE("layout", {
DEBUG_WITH_TYPE("layout", {
llvm::dbgs() << "sorted atoms:\n";
for (const DefinedAtom *atom : atomRange) {
llvm::dbgs() << " file=" << atom->file().path()
<< ", name=" << atom->name()
<< ", size=" << atom->size()
<< ", type=" << atom->contentType()
<< ", ordinal=" << atom->ordinal()
<< "\n";
llvm::dbgs() << " file=" << atom->file().path()
<< ", name=" << atom->name()
<< ", size=" << atom->size()
<< ", type=" << atom->contentType()
<< ", ordinal=" << atom->ordinal()
<< "\n";
}
});
}