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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2012-10-01 15:14:14 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2012-10-01 15:14:14 +0000 |
| commit | f0070f2a973ff046ee63de827ab32ff215b369b2 (patch) | |
| tree | d7cca1e05d979af11340a7a19e50e01b38551bb4 /lib/MC/MCObjectStreamer.cpp | |
| parent | cfb65293c36612884010144a6d93b8e98570b3a9 (diff) | |
Provide a shortcut for MCObjectStreamer when emitting fills.
Reduces runtime of i386-large-relocations.s by 10x in Release builds, even more
in Debug+Asserts builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164945 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/MC/MCObjectStreamer.cpp')
| -rw-r--r-- | lib/MC/MCObjectStreamer.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/MC/MCObjectStreamer.cpp b/lib/MC/MCObjectStreamer.cpp index 21756cd149..4b9acf750d 100644 --- a/lib/MC/MCObjectStreamer.cpp +++ b/lib/MC/MCObjectStreamer.cpp @@ -270,6 +270,14 @@ void MCObjectStreamer::EmitGPRel64Value(const MCExpr *Value) { DF->getContents().resize(DF->getContents().size() + 8, 0); } +void MCObjectStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue, + unsigned AddrSpace) { + assert(AddrSpace == 0 && "Address space must be 0!"); + // FIXME: A MCFillFragment would be more memory efficient but MCExpr has + // problems evaluating expressions across multiple fragments. + getOrCreateDataFragment()->getContents().append(NumBytes, FillValue); +} + void MCObjectStreamer::FinishImpl() { // Dump out the dwarf file & directory tables and line tables. const MCSymbol *LineSectionSymbol = NULL; |