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MC: Tweak MCInstFragment to include the encoded data and fixups, so that we don't need to recompute them during relaxation. I will revisit this once all the other pieces of fast relaxation are in place.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99244 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar
2010-03-23 01:39:05 +00:00
parent 1ccd91a5b1
commit 9799de910e
2 changed files with 42 additions and 21 deletions
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18
lib/MC/MCAssembler.cpp
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@ -773,22 +773,14 @@ void MCAssembler::FinishLayout(MCAsmLayout &Layout) {
SD.getFragmentList().insert(it2, DF);
// Update the data fragments layout data.
DF->setParent(IF->getParent());
DF->setOffset(IF->getOffset());
DF->setFileSize(IF->getInstSize());
// Encode the final instruction.
SmallVector<MCFixup, 4> Fixups;
raw_svector_ostream VecOS(DF->getContents());
getEmitter().EncodeInstruction(IF->getInst(), VecOS, Fixups);
// Copy over the fixups.
//
// FIXME-PERF: Encode fixups directly into the data fragment as well.
for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
MCFixup &F = Fixups[i];
DF->addFixup(MCAsmFixup(DF->getContents().size()+F.getOffset(),
*F.getValue(), F.getKind()));
}
// Copy in the data and the fixups.
DF->getContents().append(IF->getCode().begin(), IF->getCode().end());
for (unsigned i = 0, e = IF->getFixups().size(); i != e; ++i)
DF->getFixups().push_back(IF->getFixups()[i]);
// Delete the instruction fragment and update the iterator.
SD.getFragmentList().erase(IF);