Add tests for .seh_setframe and .seh_handlerdata parsing. Fix issues with

them.

I had to add a special SwitchSectionNoChange method to MCStreamer just for
.seh_handlerdata. If this isn't OK, please let me know, and I'll find some
other way to fix .seh_handlerdata streaming.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132084 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index 1df5c07474..9376d55e71 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -973,6 +973,15 @@ void MCAsmStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
 void MCAsmStreamer::EmitWin64EHHandlerData() {
   MCStreamer::EmitWin64EHHandlerData();
 
+  // Switch sections. Don't call SwitchSection directly, because that will
+  // cause the section switch to be visible in the emitted assembly.
+  // We only do this so the section switch that terminates the handler
+  // data block is visible.
+  const MCSection *xdataSect =
+                       getContext().getTargetAsmInfo().getWin64EHTableSection();
+  if (xdataSect)
+    SwitchSectionNoChange(xdataSect);
+
   OS << "\t.seh_handlerdata";
   EmitEOL();
 }