Revert r326932: [DebugInfo] Support DWARF expressions in eh_frame

This reverts commit rr326932 because it broke lld/test/ELF/eh-frame-hdr-augmentation.s.

llvm-svn: 326953

1 files changed, 0 insertions, 69 deletions

diff --git a/llvm/lib/DebugInfo/DWARF/DWARFDataExtractor.cpp b/llvm/lib/DebugInfo/DWARF/DWARFDataExtractor.cpp
index 03e31746139..861dd313fb0 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFDataExtractor.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFDataExtractor.cpp
@@ -8,7 +8,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/DebugInfo/DWARF/DWARFDataExtractor.h"
-#include "llvm/BinaryFormat/Dwarf.h"
 #include "llvm/DebugInfo/DWARF/DWARFContext.h"
 
 using namespace llvm;
@@ -26,71 +25,3 @@ uint64_t DWARFDataExtractor::getRelocatedValue(uint32_t Size, uint32_t *Off,
     *SecNdx = Rel->SectionIndex;
   return getUnsigned(Off, Size) + Rel->Value;
 }
-
-Optional<uint64_t>
-DWARFDataExtractor::getEncodedPointer(uint32_t *Offset, uint8_t Encoding,
-                                      uint64_t PCRelOffset) const {
-  if (Encoding == dwarf::DW_EH_PE_omit)
-    return None;
-
-  uint64_t Result = 0;
-  uint32_t OldOffset = *Offset;
-  // First get value
-  switch (Encoding & 0x0F) {
-  case dwarf::DW_EH_PE_absptr:
-    switch (getAddressSize()) {
-    case 2:
-    case 4:
-    case 8:
-      Result = getUnsigned(Offset, getAddressSize());
-      break;
-    default:
-      return None;
-    }
-    break;
-  case dwarf::DW_EH_PE_uleb128:
-    Result = getULEB128(Offset);
-    break;
-  case dwarf::DW_EH_PE_sleb128:
-    Result = getSLEB128(Offset);
-    break;
-  case dwarf::DW_EH_PE_udata2:
-    Result = getUnsigned(Offset, 2);
-    break;
-  case dwarf::DW_EH_PE_udata4:
-    Result = getUnsigned(Offset, 4);
-    break;
-  case dwarf::DW_EH_PE_udata8:
-    Result = getUnsigned(Offset, 8);
-    break;
-  case dwarf::DW_EH_PE_sdata2:
-    Result = getSigned(Offset, 2);
-    break;
-  case dwarf::DW_EH_PE_sdata4:
-    Result = getSigned(Offset, 4);
-    break;
-  case dwarf::DW_EH_PE_sdata8:
-    Result = getSigned(Offset, 8);
-    break;
-  default:
-    return None;
-  }
-  // Then add relative offset, if required
-  switch (Encoding & 0x70) {
-  case dwarf::DW_EH_PE_absptr:
-    // do nothing
-    break;
-  case dwarf::DW_EH_PE_pcrel:
-    Result += PCRelOffset;
-    break;
-  case dwarf::DW_EH_PE_datarel:
-  case dwarf::DW_EH_PE_textrel:
-  case dwarf::DW_EH_PE_funcrel:
-  case dwarf::DW_EH_PE_aligned:
-  default:
-    *Offset = OldOffset;
-    return None;
-  }
-
-  return Result;
-}