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llvm-dwp: Ensure compressed sections are preserved long enough for use in the string pool

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Now that the string pool is referential rather than maintaining its own
copy of string data, compressed sections (well, technically only the
debug_str section*) need to be preserved for the lifetime of the pool to
match.

* I'm not currently optimizing for memory footprint with compressed
  input - the major memory limit I'm hitting is on dwp+dwp merge steps
  and we aren't currently compressing contents in dwp files, just in the
  .dwo inputs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270462 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2016-05-23 17:35:51 +00:00
parent 2123d3f905
commit fb4915b806
1 changed files with 2 additions and 2 deletions
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4
tools/llvm-dwp/llvm-dwp.cpp
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@ -395,6 +395,8 @@ static Error write(MCStreamer &Out, ArrayRef<std::string> Inputs) {
SmallVector<OwningBinary<object::ObjectFile>, 128> Objects;
Objects.reserve(Inputs.size());
SmallVector<SmallString<32>, 4> UncompressedSections;
for (const auto &Input : Inputs) {
auto ErrOrObj = object::ObjectFile::createObjectFile(Input);
if (!ErrOrObj)
@ -413,8 +415,6 @@ static Error write(MCStreamer &Out, ArrayRef<std::string> Inputs) {
StringRef CurCUIndexSection;
StringRef CurTUIndexSection;
SmallVector<SmallString<32>, 4> UncompressedSections;
for (const auto &Section : Obj.sections()) {
if (Section.isBSS())
continue;