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author | Jim Grosbach <grosbach@apple.com> | 2012-08-08 23:56:06 +0000 |
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committer | Jim Grosbach <grosbach@apple.com> | 2012-08-08 23:56:06 +0000 |
commit | 2d39a0e52df9ce050bd4e2de3a2ecca8fd9a87c3 (patch) | |
tree | 5cbceaa7838dcbf235112928cd53adf48e3b5244 /lib/MC/MCObjectWriter.cpp | |
parent | fdd6484b41ef0fa7eb8c995fb34b728b193c6258 (diff) | |
download | external_llvm-2d39a0e52df9ce050bd4e2de3a2ecca8fd9a87c3.zip external_llvm-2d39a0e52df9ce050bd4e2de3a2ecca8fd9a87c3.tar.gz external_llvm-2d39a0e52df9ce050bd4e2de3a2ecca8fd9a87c3.tar.bz2 |
Move [SU]LEB128 encoding to a utility header.
These functions are very generic. There's no reason for them to
be tied to MCObjectWriter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161545 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/MC/MCObjectWriter.cpp')
-rw-r--r-- | lib/MC/MCObjectWriter.cpp | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/lib/MC/MCObjectWriter.cpp b/lib/MC/MCObjectWriter.cpp index 030f247..94d7cd6 100644 --- a/lib/MC/MCObjectWriter.cpp +++ b/lib/MC/MCObjectWriter.cpp @@ -17,40 +17,6 @@ using namespace llvm; MCObjectWriter::~MCObjectWriter() { } -/// Utility function to encode a SLEB128 value. -void MCObjectWriter::EncodeSLEB128(int64_t Value, raw_ostream &OS) { - bool More; - do { - uint8_t Byte = Value & 0x7f; - // NOTE: this assumes that this signed shift is an arithmetic right shift. - Value >>= 7; - More = !((((Value == 0 ) && ((Byte & 0x40) == 0)) || - ((Value == -1) && ((Byte & 0x40) != 0)))); - if (More) - Byte |= 0x80; // Mark this byte that that more bytes will follow. - OS << char(Byte); - } while (More); -} - -/// Utility function to encode a ULEB128 value. -void MCObjectWriter::EncodeULEB128(uint64_t Value, raw_ostream &OS, - unsigned Padding) { - do { - uint8_t Byte = Value & 0x7f; - Value >>= 7; - if (Value != 0 || Padding != 0) - Byte |= 0x80; // Mark this byte that that more bytes will follow. - OS << char(Byte); - } while (Value != 0); - - // Pad with 0x80 and emit a null byte at the end. - if (Padding != 0) { - for (; Padding != 1; --Padding) - OS << '\x80'; - OS << '\x00'; - } -} - bool MCObjectWriter::IsSymbolRefDifferenceFullyResolved(const MCAssembler &Asm, const MCSymbolRefExpr *A, |