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llvm-objdump: disassembly enhancements

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- Indent simple loops
- Print unreachable blocks as .byte directives

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137058 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2011-08-08 18:41:34 +00:00
parent a21d813709
commit c13464f3c1
1 changed files with 19 additions and 1 deletions
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20
tools/llvm-objdump/llvm-objdump.cpp
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@ -284,8 +284,23 @@ static void DisassembleInput(const StringRef &Filename) {
break;
}
if (!hasPreds && fi != f.begin())
// Data block.
if (!hasPreds && fi != f.begin()) {
uint64_t End = llvm::next(fi) == fe ? SectSize :
llvm::next(fi)->first;
uint64_t addr;
if (error(i->getAddress(addr))) break;
outs() << "# " << End-fi->first << " bytes of data:\n";
for (unsigned pos = fi->first; pos != End; ++pos) {
outs() << format("%8x:\t", addr + pos);
DumpBytes(StringRef(Bytes.data() + pos, 1));
outs() << format("\t.byte 0x%02x\n", (uint8_t)Bytes[pos]);
}
continue;
}
if (fi->second.contains(&fi->second))
outs() << "# Loop begin:\n";
for (unsigned ii = 0, ie = fi->second.getInsts().size(); ii != ie;
++ii) {
@ -294,6 +309,9 @@ static void DisassembleInput(const StringRef &Filename) {
const MCDecodedInst &Inst = fi->second.getInsts()[ii];
outs() << format("%8x:\t", addr + Inst.Address);
DumpBytes(StringRef(Bytes.data() + Inst.Address, Inst.Size));
// Simple loops.
if (fi->second.contains(&fi->second))
outs() << '\t';
IP->printInst(&Inst.Inst, outs());
outs() << '\n';
}