Revert "[AMDGPU] llvm-objdump: Minimal HSA Code Object disassembler support."

This reverts commit r265550. There're problems with endianness on dumping instruction bytes. Need to find out how to use support::ulittle32_t type properly.

llvm-svn: 265554

llvm/tools/llvm-objdump/llvm-objdump.cpp

@@ -384,41 +384,12 @@ public:
   }
 };
 HexagonPrettyPrinter HexagonPrettyPrinterInst;
-
-class AMDGCNPrettyPrinter : public PrettyPrinter {
-public:
-  void printInst(MCInstPrinter &IP,
-                 const MCInst *MI,
-                 ArrayRef<uint8_t> Bytes,
-                 uint64_t Address,
-                 raw_ostream &OS,
-                 StringRef Annot,
-                 MCSubtargetInfo const &STI) override {
-    SmallString<40> InstStr;
-    raw_svector_ostream IS(InstStr);
-
-    IP.printInst(MI, IS, "", STI);
-
-    OS << left_justify(IS.str(), 60) << format("// %012X: ", Address);
-    typedef support::ulittle32_t U32;
-    for (auto D : makeArrayRef(reinterpret_cast<const U32*>(Bytes.data()),
-                               Bytes.size() / sizeof(U32)))
-      OS << format("%08X ", D);
-
-    if (!Annot.empty())
-      OS << "// " << Annot;
-  }
-};
-AMDGCNPrettyPrinter AMDGCNPrettyPrinterInst;
-
 PrettyPrinter &selectPrettyPrinter(Triple const &Triple) {
   switch(Triple.getArch()) {
   default:
     return PrettyPrinterInst;
   case Triple::hexagon:
     return HexagonPrettyPrinterInst;
-  case Triple::amdgcn:
-    return AMDGCNPrettyPrinterInst;
   }
 }
 }
@@ -1075,18 +1046,6 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) {
       if (Start >= End)
         continue;
 
-      if (Obj->isELF() && Obj->getArch() == Triple::amdgcn) {
-        // make size 4 bytes folded
-        End = Start + ((End - Start) & ~0x3ull);
-        Start += 256; // add sizeof(amd_kernel_code_t)
-        // cut trailing zeroes - up to 256 bytes (align)
-        const uint64_t EndAlign = 256;
-        const auto Limit = End - (std::min)(EndAlign, End - Start);
-        while (End > Limit &&
-          *reinterpret_cast<const support::ulittle32_t*>(&Bytes[End - 4]) == 0)
-          End -= 4;
-      }
-
       outs() << '\n' << Symbols[si].second << ":\n";
 
 #ifndef NDEBUG