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https://github.com/c64scene-ar/llvm-6502.git
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8906ff1b9d
(external was really undefined and there wasn't an explicit representation for absolute symbols). - This still needs some cleanup to how the absolute "pseudo" section is dealt with, but I haven't figured out the nicest approach yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79733 91177308-0d34-0410-b5e6-96231b3b80d8
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
//===- lib/MC/MCSymbol.cpp - MCSymbol implementation ----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/MC/MCSymbol.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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// Sentinel value for the absolute pseudo section.
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const MCSection *MCSymbol::AbsolutePseudoSection =
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reinterpret_cast<const MCSection *>(1);
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/// NeedsQuoting - Return true if the string \arg Str needs quoting, i.e., it
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/// does not match [a-zA-Z_.][a-zA-Z0-9_.]*.
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//
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// FIXME: This could be more permissive, do we care?
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static inline bool NeedsQuoting(const StringRef &Str) {
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if (Str.empty())
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return true;
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// Check that first character is in [a-zA-Z_.].
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if (!((Str[0] >= 'a' && Str[0] <= 'z') ||
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(Str[0] >= 'A' && Str[0] <= 'Z') ||
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(Str[0] == '_' || Str[0] == '.')))
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return true;
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// Check subsequent characters are in [a-zA-Z0-9_.].
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for (unsigned i = 1, e = Str.size(); i != e; ++i)
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if (!((Str[i] >= 'a' && Str[i] <= 'z') ||
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(Str[i] >= 'A' && Str[i] <= 'Z') ||
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(Str[i] >= '0' && Str[i] <= '9') ||
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(Str[i] == '_' || Str[i] == '.')))
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return true;
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return false;
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}
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void MCSymbol::print(raw_ostream &OS) const {
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if (NeedsQuoting(getName()))
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OS << '"' << getName() << '"';
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else
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OS << getName();
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}
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void MCSymbol::dump() const {
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print(errs());
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}
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