Centralize handling of the eh_begin and eh_end labels.

This removes a bit of duplicated code and more importantly, remembers the
labels so that they don't need to be looked up by name.

This in turn allows for any name to be used and avoids a crash if the name
we wanted was already taken.

llvm-svn: 230772

1 files changed, 2 insertions, 10 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/Win64Exception.cpp b/llvm/lib/CodeGen/AsmPrinter/Win64Exception.cpp
index 2b03877faec..356a35135d1 100644
--- a/llvm/lib/CodeGen/AsmPrinter/Win64Exception.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/Win64Exception.cpp
@@ -80,9 +80,6 @@ void Win64Exception::beginFunction(const MachineFunction *MF) {
   const MCSymbol *PersHandlerSym =
       TLOF.getCFIPersonalitySymbol(Per, *Asm->Mang, Asm->TM, MMI);
   Asm->OutStreamer.EmitWinEHHandler(PersHandlerSym, true, true);
-
-  Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_begin",
-                                                Asm->getFunctionNumber()));
 }
 
 /// endFunction - Gather and emit post-function exception information.
@@ -91,9 +88,6 @@ void Win64Exception::endFunction(const MachineFunction *) {
   if (!shouldEmitPersonality && !shouldEmitMoves)
     return;
 
-  Asm->OutStreamer.EmitLabel(Asm->GetTempSymbol("eh_func_end",
-                                                Asm->getFunctionNumber()));
-
   // Map all labels and get rid of any dead landing pads.
   MMI->TidyLandingPads();
 
@@ -170,10 +164,8 @@ void Win64Exception::emitCSpecificHandlerTable() {
   SmallVector<CallSiteEntry, 64> CallSites;
   computeCallSiteTable(CallSites, LandingPads, FirstActions);
 
-  MCSymbol *EHFuncBeginSym =
-      Asm->GetTempSymbol("eh_func_begin", Asm->getFunctionNumber());
-  MCSymbol *EHFuncEndSym =
-      Asm->GetTempSymbol("eh_func_end", Asm->getFunctionNumber());
+  MCSymbol *EHFuncBeginSym = Asm->getFunctionBegin();
+  MCSymbol *EHFuncEndSym = Asm->getFunctionEnd();
 
   // Emit the number of table entries.
   unsigned NumEntries = 0;