MC Win64: Put unwind info for COMDAT code into the same COMDAT group

Summary:
This fixes a long standing issue where we would emit many little .text
sections and only one .pdata and .xdata section. Now we generate one
.pdata / .xdata pair per .text section and associate them correctly.

Fixes PR19667.

Reviewers: majnemer

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5181

llvm-svn: 217176

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/MC/MCWin64EH.cpp b/llvm/lib/MC/MCWin64EH.cpp
index 7394ba8..dfadb3cc 100644
--- a/llvm/lib/MC/MCWin64EH.cpp
+++ b/llvm/lib/MC/MCWin64EH.cpp
@@ -225,7 +225,7 @@ void UnwindEmitter::Emit(MCStreamer &Streamer) const {
   // Emit the unwind info structs first.
   for (const auto &CFI : Streamer.getWinFrameInfos()) {
     const MCSection *XData =
-        GetXDataSection(GetSectionSuffix(CFI->Function), Context);
+        getXDataSection(CFI->Function, Context);
     Streamer.SwitchSection(XData);
     EmitUnwindInfo(Streamer, CFI);
   }
@@ -233,7 +233,7 @@ void UnwindEmitter::Emit(MCStreamer &Streamer) const {
   // Now emit RUNTIME_FUNCTION entries.
   for (const auto &CFI : Streamer.getWinFrameInfos()) {
     const MCSection *PData =
-        GetPDataSection(GetSectionSuffix(CFI->Function), Context);
+        getPDataSection(CFI->Function, Context);
     Streamer.SwitchSection(PData);
     EmitRuntimeFunction(Streamer, CFI);
   }
@@ -245,7 +245,7 @@ void UnwindEmitter::EmitUnwindInfo(MCStreamer &Streamer,
   // here and from Emit().
   MCContext &context = Streamer.getContext();
   const MCSection *xdataSect =
-    GetXDataSection(GetSectionSuffix(info->Function), context);
+    getXDataSection(info->Function, context);
   Streamer.SwitchSection(xdataSect);
 
   llvm::EmitUnwindInfo(Streamer, info);