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Revert debug info compression support.

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To support compression for debug_line and debug_frame a different
approach is required. To simplify review, revert the old implementation
and XFAIL the test case. New implementation to follow shortly.

Reverts r205059 and r204958.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205989 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2014-04-10 21:53:47 +00:00
parent 13772fb0a7
commit 22f3236dd6
5 changed files with 5 additions and 79 deletions
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23
include/llvm/MC/MCAssembler.h
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@@ -52,7 +52,6 @@ public:
enum FragmentType {
FT_Align,
FT_Data,
FT_Compressed,
FT_CompactEncodedInst,
FT_Fill,
FT_Relaxable,
@@ -162,7 +161,6 @@ public:
return false;
case MCFragment::FT_Relaxable:
case MCFragment::FT_CompactEncodedInst:
case MCFragment::FT_Compressed:
case MCFragment::FT_Data:
return true;
}
@@ -197,8 +195,7 @@ public:
static bool classof(const MCFragment *F) {
MCFragment::FragmentType Kind = F->getKind();
return Kind == MCFragment::FT_Relaxable || Kind == MCFragment::FT_Data ||
Kind == MCFragment::FT_Compressed;
return Kind == MCFragment::FT_Relaxable || Kind == MCFragment::FT_Data;
}
};
@@ -217,11 +214,6 @@ class MCDataFragment : public MCEncodedFragmentWithFixups {
/// Fixups - The list of fixups in this fragment.
SmallVector<MCFixup, 4> Fixups;
protected:
MCDataFragment(MCFragment::FragmentType FType, MCSectionData *SD = 0)
: MCEncodedFragmentWithFixups(FType, SD), HasInstructions(false),
AlignToBundleEnd(false) {}
public:
MCDataFragment(MCSectionData *SD = 0)
: MCEncodedFragmentWithFixups(FT_Data, SD),
@@ -255,21 +247,10 @@ public:
const_fixup_iterator fixup_end() const override {return Fixups.end();}
static bool classof(const MCFragment *F) {
return F->getKind() == MCFragment::FT_Data ||
F->getKind() == MCFragment::FT_Compressed;
return F->getKind() == MCFragment::FT_Data;
}
};
class MCCompressedFragment: public MCDataFragment {
mutable SmallVector<char, 32> CompressedContents;
public:
MCCompressedFragment(MCSectionData *SD = nullptr)
: MCDataFragment(FT_Compressed, SD) {}
const SmallVectorImpl<char> &getCompressedContents() const;
using MCDataFragment::getContents;
SmallVectorImpl<char> &getContents() override;
};
/// This is a compact (memory-size-wise) fragment for holding an encoded
/// instruction (non-relaxable) that has no fixups registered. When applicable,
/// it can be used instead of MCDataFragment and lead to lower memory