Remove and forbid raw_svector_ostream::flush() calls.

After r244870 flush() will only compare two null pointers and return,
doing nothing but wasting run time. The call is not required any more
as the stream and its SmallString are always in sync.

Thanks to David Blaikie for reviewing.

llvm-svn: 244928

1 files changed, 0 insertions, 4 deletions

diff --git a/llvm/lib/MC/MCAssembler.cpp b/llvm/lib/MC/MCAssembler.cpp
index 38e1261..4ec81b3 100644
--- a/llvm/lib/MC/MCAssembler.cpp
+++ b/llvm/lib/MC/MCAssembler.cpp
@@ -986,7 +986,6 @@ bool MCAssembler::relaxInstruction(MCAsmLayout &Layout,
   SmallString<256> Code;
   raw_svector_ostream VecOS(Code);
   getEmitter().encodeInstruction(Relaxed, VecOS, Fixups, F.getSubtargetInfo());
-  VecOS.flush();
 
   // Update the fragment.
   F.setInst(Relaxed);
@@ -1009,7 +1008,6 @@ bool MCAssembler::relaxLEB(MCAsmLayout &Layout, MCLEBFragment &LF) {
     encodeSLEB128(Value, OSE);
   else
     encodeULEB128(Value, OSE);
-  OSE.flush();
   return OldSize != LF.getContents().size();
 }
 
@@ -1028,7 +1026,6 @@ bool MCAssembler::relaxDwarfLineAddr(MCAsmLayout &Layout,
   raw_svector_ostream OSE(Data);
   MCDwarfLineAddr::Encode(Context, getDWARFLinetableParams(), LineDelta,
                           AddrDelta, OSE);
-  OSE.flush();
   return OldSize != Data.size();
 }
 
@@ -1044,7 +1041,6 @@ bool MCAssembler::relaxDwarfCallFrameFragment(MCAsmLayout &Layout,
   Data.clear();
   raw_svector_ostream OSE(Data);
   MCDwarfFrameEmitter::EncodeAdvanceLoc(Context, AddrDelta, OSE);
-  OSE.flush();
   return OldSize != Data.size();
 }