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| author | Eli Friedman <eli.friedman@gmail.com> | 2011-04-18 20:54:46 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2011-04-18 20:54:46 +0000 |
| commit | b2545fbc2a85cd8feca55051626cfc76e30d7f3e (patch) | |
| tree | 38fed98c1c32599ea082320c425f3d5c4db328df /llvm/lib/MC/MCObjectStreamer.cpp | |
| parent | 17740e70d5584c3a36db94b587d152484bdd2a19 (diff) | |
| download | llvm-b2545fbc2a85cd8feca55051626cfc76e30d7f3e.zip llvm-b2545fbc2a85cd8feca55051626cfc76e30d7f3e.tar.gz llvm-b2545fbc2a85cd8feca55051626cfc76e30d7f3e.tar.bz2 | |
malloc elimination: it's a bad idea to use raw_svector_ostream on a
small heap-allocated SmallString because it unconditionally forces a malloc.
(Revised version of r129688, with the necessary flush() call.)
llvm-svn: 129716
Diffstat (limited to 'llvm/lib/MC/MCObjectStreamer.cpp')
| -rw-r--r-- | llvm/lib/MC/MCObjectStreamer.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/MC/MCObjectStreamer.cpp b/llvm/lib/MC/MCObjectStreamer.cpp index ef22eaa..bd7de57 100644 --- a/llvm/lib/MC/MCObjectStreamer.cpp +++ b/llvm/lib/MC/MCObjectStreamer.cpp @@ -191,8 +191,11 @@ void MCObjectStreamer::EmitInstruction(const MCInst &Inst) { void MCObjectStreamer::EmitInstToFragment(const MCInst &Inst) { MCInstFragment *IF = new MCInstFragment(Inst, getCurrentSectionData()); - raw_svector_ostream VecOS(IF->getCode()); + SmallString<128> Code; + raw_svector_ostream VecOS(Code); getAssembler().getEmitter().EncodeInstruction(Inst, VecOS, IF->getFixups()); + VecOS.flush(); + IF->getCode().append(Code.begin(), Code.end()); } static const MCExpr *BuildSymbolDiff(MCContext &Context, |