MC: Change MCAssembler::writeSectionData and writeFragmentPadding to take a raw_ostream. NFCI.

Also clean up a couple of hacks where we were writing the section
contents to another stream by setting the object writer's stream,
writing and setting it back.

Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47038

llvm-svn: 332858

1 files changed, 1 insertions, 9 deletions

diff --git a/llvm/lib/MC/WinCOFFObjectWriter.cpp b/llvm/lib/MC/WinCOFFObjectWriter.cpp
index b58902751b8..392bd026524 100644
--- a/llvm/lib/MC/WinCOFFObjectWriter.cpp
+++ b/llvm/lib/MC/WinCOFFObjectWriter.cpp
@@ -608,15 +608,7 @@ uint32_t WinCOFFObjectWriter::writeSectionContents(MCAssembler &Asm,
   // to CRC the data before we dump it into the object file.
   SmallVector<char, 128> Buf;
   raw_svector_ostream VecOS(Buf);
-  raw_pwrite_stream &OldStream = getStream();
-
-  // Redirect the output stream to our buffer and fill our buffer with
-  // the section data.
-  setStream(VecOS);
-  Asm.writeSectionData(&MCSec, Layout);
-
-  // Reset the stream back to what it was before.
-  setStream(OldStream);
+  Asm.writeSectionData(VecOS, &MCSec, Layout);
 
   // Write the section contents to the object file.
   getStream() << Buf;