Centralize the handling of the thumb bit.

This patch centralizes the handling of the thumb bit around
MCStreamer::isThumbFunc and makes isThumbFunc handle aliases.

This fixes a corner case, but the main advantage is having just one
way to check if a MCSymbol is thumb or not. This should still be
refactored to be ARM only, but at least now it is just one predicate
that has to be refactored instead of 3 (isThumbFunc,
ELF_Other_ThumbFunc, and SF_ThumbFunc).

llvm-svn: 207522

1 files changed, 3 insertions, 0 deletions

diff --git a/llvm/lib/MC/MachObjectWriter.cpp b/llvm/lib/MC/MachObjectWriter.cpp
index b4e53be7d52..cbaf0b87d6e 100644
--- a/llvm/lib/MC/MachObjectWriter.cpp
+++ b/llvm/lib/MC/MachObjectWriter.cpp
@@ -351,6 +351,9 @@ void MachObjectWriter::WriteNlist(MachSymbolData &MSD,
     }
   }
 
+  if (Layout.getAssembler().isThumbFunc(&Symbol))
+    Flags |= SF_ThumbFunc;
+
   // struct nlist (12 bytes)
 
   Write32(MSD.StringIndex);